Mattermost

Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. Trusted by the U.S. Department of War and Fortune 500s, our platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio/screenshare, and project management—all with full data and operational control. Mattermost powers high-stakes workflows across mission planning, real-time, real-world operations, DevSecOps, incident response, and cyber defense—enabling secure collaboration from tactical edge and DDIL environments to enterprise HQ. Teams operate across web, desktop, and mobile, with embedded interoperability for Microsoft Teams, Outlook, and Microsoft 365. To learn more, visit www.mattermost.com Mattermost is seeking a Growth Web Engineer to own and operate a modern, AI-enabled, developer-first website that powers high-velocity campaign execution and personalized digital experiences. This role sits at the intersection of marketing, engineering, and AI-driven workflows. You will be responsible for translating campaign strategy, intent signals, and AI-generated insights into live web experiences—quickly, reliably, and at scale. You will play a critical role in enabling rapid experimentation, account-based experiences, and AI-assisted execution—turning the website into a core growth engine. What You’ll Do Daily Website Operations & Content Management - Own the day-to-day operation of the website, including updates, edits, and publishing of pages and content - Build, update, and launch landing pages, campaign pages, and site content on tight timelines - Make ongoing updates to existing pages, including copy, layout, components, and integrations - QA all changes before and after publishing to ensure accuracy, functionality, and performance - Monitor site health and quickly resolve issues related to broken pages, components, forms, or integrations - Support rapid turnaround requests from marketing, including same-day updates when needed - Maintain consistency across pages, ensuring alignment with design, messaging, and conversion best practices Own the Website as a High-Velocity System - Manage and evolve a static-site architecture (Astro or similar) - Build flexible, reusable components that enable rapid page creation and iteration - Ensure the site supports frequent updates without breaking structure, performance, or tracking - Troubleshoot and resolve rendering, formatting, and build issues quickly Enable Personalized & ABM Experiences - Partner with Growth Marketing and ABM to create targeted landing pages and campaign experiences for specific accounts, industries, and personas - Translate intent signals and campaign inputs into tailored web experiences - Build reusable templates for ABM, industry, and campaign pages to support scale and speed - Enable rapid iteration of messaging, layouts, and CTAs based on performance and engagement Operate AI-Assisted Page & Workflow Systems - Use AI tools (e.g., Claude, Cursor, Copilot) to accelerate page creation and development workflows - Translate campaign requirements into structured prompts and page outputs - Validate and refine AI-generated code and content to ensure production quality - Integrate the website into broader AI-driven workflows that inform lead routing, nurture behavior, and optimization - Act on insights generated from AI systems to continuously improve page performance and relevance Forms, Data Flow & Funnel Integration - Build and maintain frontend form experiences within the site - Integrate forms with Pardot using form handlers or APIs - Ensure accurate field mapping, hidden fields, and campaign attribution - Validate end-to-end data flow into Salesforce - Implement and maintain conversion tracking via Google Analytics 4 - Debug and resolve issues across the full lead capture, routing, and attribution process Integrations & Third-Party Systems - Integrate and maintain external tools such as: - Qualified - Navattic - Greenhouse - Ensure consistent styling, performance, and tracking across all embedded systems - Maintain reliable data flow across marketing and AI workflow systems AEO / GEO & Technical SEO - Structure pages and content to support both traditional SEO and AI-driven discovery (AEO/GEO) - Implement schema, metadata, and semantic page structures to improve answer engine visibility - Work with emerging AI search and optimization tools (e.g., Profound, AthenaHQ, or similar) - Continuously optimize pages based on search performance, AI visibility, and engagement signals - Monitor and address indexing and performance issues via Google Search Console Git-Based Workflow & Deployment - Own content and code workflows in GitHub - Manage CI/CD pipelines and deployments (e.g., Vercel, Netlify) - Ensure reliable publishing with minimal friction and downtime What We’re Looking For Core Technical Skills - 3–6+ years in frontend, growth engineering, or similar roles - Experience with static frameworks (Astro, Next.js, Gatsby, or equivalent) - Strong proficiency in HTML, CSS, and JavaScript - Experience with Git-based workflows and modern deployment pipelines Growth & Execution Mindset - Proven ability to launch and iterate on pages quickly in fast-paced environments - Strong bias toward action while maintaining quality and stability - Experience supporting marketing or growth teams (landing pages, campaigns, experimentation) Systems & Integration Experience - Experience working with APIs, webhooks, and third-party integrations - Familiarity with marketing and analytics tools (Pardot, Salesforce, GA4, etc.) - Ability to debug issues across frontend, backend, and data systems AI & Modern Tooling - Experience using AI tools (e.g., Claude, Cursor, Copilot) in development workflows - Ability to generate, evaluate, and refine AI-assisted outputs - Comfort working in environments where AI workflows are integrated into execution Nice to Have - Experience in B2B SaaS or enterprise marketing environments - Familiarity with headless CMS platforms or structured content systems - Experience implementing advanced tracking, attribution, and experimentation frameworks Success in This Role In your first 90 days, you will: - Establish a fast, reliable workflow for launching and updating pages - Deliver same-day or next-day turnaround for key campaign updates - Enable rapid creation of personalized and ABM campaign experiences - Implement robust form handling and ensure accurate lead flow into Pardot and Salesforce - Integrate the website into key AI-driven workflows across marketing and sales - Improve site flexibility through reusable components and scalable templates Why This Role Matters We are building a connected, AI-orchestrated growth system where insights, intent signals, and campaign strategy must translate into live digital experiences immediately. This role ensures that happens—turning data into execution at speed and enabling personalized, high-impact experiences that drive pipeline and revenue. Mattermost takes a market-based approach to pay and pay may vary depending on your location. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future. Mattermost is an EEO Employer, we are a remote-first, open-source company. We are continually working to expand our hiring in more countries and regions, ensuring compliance with local laws and regulations, which takes time. Mattermost values your unique perspective—we welcome all applicants. We encourage individuals from all backgrounds to apply and are committed to assessing candidates based on their skills and qualifications. We do not tolerate discrimination against staff or applicants based on race, religion, national origin, age, disability, pregnancy status, veteran status, or other personal characteristics. If you require accommodations during the interview process, please let us know—we’re happy to assist.

Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. Trusted by the U.S. Department of War and Fortune 500s, our platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio/screenshare, and project management—all with full data and operational control. Mattermost powers high-stakes workflows across mission planning, real-time, real-world operations, DevSecOps, incident response, and cyber defense—enabling secure collaboration from tactical edge and DDIL environments to enterprise HQ. Teams operate across web, desktop, and mobile, with embedded interoperability for Microsoft Teams, Outlook, and Microsoft 365. To learn more, visit www.mattermost.com Mattermost is seeking a hands-on IT Administrator (Contractor) to drive day-to-day IT operations and support our globally distributed, remote-first workforce. You’ll be the primary operator across identity, SaaS platforms, and endpoint management—ensuring reliability, security, and scalability of our internal systems. This role is ideal for someone who thrives in an async, high-trust environment, operates independently, and proactively automates manual work. Key Responsibilities - Global IT Support: Resolve hardware, software, access issues across all time zones. - Core Systems Administration: Own and manage Google Workspace, Microsoft 365 (Entra ID, Intune, Exchange, SharePoint), and the Atlassian suite (Jira, Confluence). - Identity & Access Management: Responsible for IT onboarding and offboarding, provisioning, SSO, and access control. - Automation: Design and implement workflows using tools like Tines, N8N, or scripting to reduce manual effort. - Asset & Compliance Management: Maintain software licensing, hardware inventory, vendor coordination, and support compliance efforts for SOC 2 and ISO 27001. - Security Partnership: Partner with Security to enforce endpoint protection, MFA, and access policies. Required Skills & Experience Technical Expertise - Google Workspace administration (org units, policies, security, access and integration management) - Microsoft 365: Entra ID (Conditional Access, groups, app integrations), Intune (MDM/MAM, app deployment), Exchange, SharePoint - Identity: Implementing and managing SAML, SCIM, OAuth 2.0, and SSO integrations. - Endpoint management: MacOS and Windows 11 in remote environments - Automation: Practical experience with Tines, Zapier, N8N, and/or scripting (PowerShell, Python, Bash). - Cloud fundamentals: IAM in AWS and Azure - Security fundamentals: MFA, endpoint protection, least-privileged access control Operational Skills - Proven ability to operate independently in a remote-first environment - Excellent written communication for policy, runbooks, and non-technical stakeholders. - Strong troubleshooting across complex systems Preferred Qualifications - Experience supporting SOC 2 and/or ISO 27001 compliance efforts - Apple ecosystem management (Apple Business Manager, MDM) - Advanced Jira and Confluence administration - Experience in a fully remote, globally distributed organization Why Mattermost - Work on mission-critical systems used by leading organizations worldwide - Join a remote-first, high-trust team with strong ownership culture - Opportunity to modernize IT through automation and AI-assisted workflows Mattermost takes a market-based approach to pay and pay may vary depending on your location. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future. Posting Range $150,000—$175,000 USD Mattermost is an EEO Employer, we are a remote-first, open-source company. We are continually working to expand our hiring in more countries and regions, ensuring compliance with local laws and regulations, which takes time. Mattermost values your unique perspective—we welcome all applicants. We encourage individuals from all backgrounds to apply and are committed to assessing candidates based on their skills and qualifications. We do not tolerate discrimination against staff or applicants based on race, religion, national origin, age, disability, pregnancy status, veteran status, or other personal characteristics. If you require accommodations during the interview process, please let us know—we’re happy to assist.

Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. Trusted by the U.S. Department of War and Fortune 500s, our platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio/screenshare, and project management—all with full data and operational control. Mattermost powers high-stakes workflows across mission planning, real-time, real-world operations, DevSecOps, incident response, and cyber defense—enabling secure collaboration from tactical edge and DDIL environments to enterprise HQ. Teams operate across web, desktop, and mobile, with embedded interoperability for Microsoft Teams, Outlook, and Microsoft 365. To learn more, visit www.mattermost.com Mattermost is looking for a Senior React Platform Engineer to help us redefine the limits of web application performance and reliability. You will join the Core Web team to lead the evolution of our web architecture, shared libraries, and networking strategies. Your work sits at the intersection of modern frontend infrastructure and extreme environment resilience. You’ll be responsible for ensuring that our web platform is both a joy for developers to build on and a reliable tool for users in the most challenging network conditions—specifically DDIL (Disconnected, Denied, Disrupted, Intermittent, and Limited) environments. This isn't just about building features; it's about building the engine that powers them. Do you have a passion for designing and developing high-impact products? Do you want to work with a well-oiled, collaborative, and highly senior team? Do you want to make an impact on open source? Help us build and grow one of the largest React and Go open-source projects. Responsibilities Include: - Implement secure communication features and real-time messaging capabilities optimized for high-latency or disrupted network conditions - Optimize web application performance, including bundle size, initial load time, runtime memory usage, and asset delivery pipelines - Design and maintain shared React component libraries and architectural patterns to ensure platform-wide consistency and scalability - Collaborate with backend engineers to integrate web apps with APIs and ensure smooth data synchronization under constrained or intermittent network environments - Contribute to Mattermost's open-source React codebase, sharing platform-level and resilience-focused solutions with the broader developer community - Work with product managers and designers to translate user requirements into technical solutions and prototypes, with a focus on graceful degradation and resilience - Implement comprehensive testing strategies including unit tests and automated end-to-end testing (e.g., Cypress or Playwright) under simulated network stress - Debug and resolve web-specific issues across different browsers, platforms, and operating system versions. - Participate in code reviews and provide mentorship to colleagues on React best practices, platform standards, and resilient architecture - Proactively master and integrate the latest advancements in AI and LLM-powered development tools (e.g., Cursor, Claude, GitHub Copilot) to accelerate engineering velocity, automate repetitive platform tasks, and establish best-in-class AI-assisted workflows Requirements: - BS in Computer Science, Computer Engineering, or related field/experience - 5+ years of professional experience developing mobile applications with React - Strong proficiency in JavaScript/TypeScript and React ecosystem including hooks, state management, and component architecture - Deep understanding of Browser Networking (WebSockets, HTTP/2) and how to architect applications for high-latency, packet loss, or unstable connections - Proficiency with AI/LLM tools to improve and accelerate development - Experience with state management libraries (Redux, Zustand, or similar) and async data handling - Familiarity with web app testing frameworks and debugging tools for React applications - Strong problem-solving skills and ability to work independently in a remote, distributed team environment - Excellent written and verbal communication skills for collaborating across time zones - For candidates residing in the U.S.: This role may require the ability to obtain and maintain a U.S. government security clearance in the future. As such, U.S. applicants must be U.S. citizens and eligible under applicable clearance requirements. - Applicants must meet eligibility requirements for access to export-controlled information as defined by U.S. export control laws, including EAR and ITAR. Preferences - Previous experience building end user products for enterprises or security-focused users - Contributions to open-source projects - Knowledge of accessibility standards and implementing inclusive web experiences - Has worked fully remotely with global teams - Expertise in defense, intelligence, or security-focused workflows Compensation: Mattermost takes a market-based approach to pay. Actual compensation may vary based on location, skills, experience, qualifications, and market conditions. U.S. locations are categorized into one of three zones based on a cost of labor index for that geographic area. - Zone A: $191,111 – $258,562 - Zone B: $181.556– $245,634 - Zone C: $172,000 – $232,706 These ranges may be updated in the future. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, and work location. Posting Range $165,000—$250,000 USD Mattermost is an EEO Employer, we are a remote-first, open-source company. We are continually working to expand our hiring in more countries and regions, ensuring compliance with local laws and regulations, which takes time. Mattermost values your unique perspective—we welcome all applicants. We encourage individuals from all backgrounds to apply and are committed to assessing candidates based on their skills and qualifications. We do not tolerate discrimination against staff or applicants based on race, religion, national origin, age, disability, pregnancy status, veteran status, or other personal characteristics. If you require accommodations during the interview process, please let us know—we’re happy to assist.

Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. Trusted by the U.S. Department of War and Fortune 500s, our platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio/screenshare, and project management—all with full data and operational control. Mattermost powers high-stakes workflows across mission planning, real-time, real-world operations, DevSecOps, incident response, and cyber defense—enabling secure collaboration from tactical edge and DDIL environments to enterprise HQ. Teams operate across web, desktop, and mobile, with embedded interoperability for Microsoft Teams, Outlook, and Microsoft 365. To learn more, visit www.mattermost.com Mattermost is seeking a Senior Technical Account Manager (TAM) is a customer-facing technical leader responsible for ensuring the successful deployment, integration, and operational success of the Mattermost platform for enterprise and public sector clients across the United Kingdom. This role requires strong technical expertise in infrastructure, cybersecurity, and DevSecOps, combined with the ability to build trusted relationships with customers across multiple regions and languages. The TAM serves as a trusted technical advisor—partnering with engineering, product, and customer teams to ensure reliable, secure, and scalable deployments of Mattermost. Key Responsibilities Customer Success & Technical Delivery - Lead onboarding, deployment, and optimization of Mattermost for strategic enterprise customers. - Design and validate scalable architectures for cloud, hybrid, and on-premise deployments. - Guide customers on integrating Mattermost with identity providers (SSO, SAML, OAuth, LDAP), CI/CD pipelines, and monitoring tools. - Support adoption across distributed teams by ensuring high reliability, security, and performance. - Provide proactive technical guidance to prevent issues and optimize system architecture. Technical Leadership & Advocacy - Serve as the primary technical advisor for assigned customer accounts. - Work closely with Product, Engineering, and Support teams to resolve technical challenges. - Capture customer insights and feedback to influence product roadmap and feature development. - Develop documentation, deployment templates, and automation assets to support customer success at scale. Communication & Stakeholder Management - Communicate complex technical concepts clearly to both technical and non-technical audiences. - Build trusted relationships with stakeholders across UK - Conduct technical workshops, architecture reviews, and implementation planning sessions. - Maintain documentation of deployment architectures, customer requirements, and feedback. Required Qualifications - 5+ years experience in Technical Account Management, Solutions Engineering, DevOps Engineering, or a similar technical customer-facing role. - Strong expertise in Linux, networking, containers (Docker/Kubernetes), and cloud infrastructure. - Experience with scripting or development (Python, Go, Bash, Node.js, or similar). - Familiarity with DevOps and CI/CD tools (GitHub/GitLab, Jenkins, Terraform, Jira). - Strong understanding of cybersecurity best practices and secure system design. - Proven ability to manage enterprise technical relationships and complex implementations. - Applicants must meet eligibility requirements for access to export-controlled information as defined by U.S. export control laws, including EAR and ITAR. - Fluent English (written and spoken) required. - Excellent communication and stakeholder management skills. - Must be authorized to work in the United Kingdom. Preferred Qualifications - Experience supporting public sector, defense, or regulated industries. - Familiarity with compliance frameworks such as ISO 27001, SOC 2, GDPR, NIS2, or UK NCSC security guidance. - Experience supporting air-gapped or highly secure deployments. - Existing or eligibility for security clearance such as UK Security Clearance (SC), French defense clearance, or NATO Secret clearance. - Experience with mobile device management platforms (Intune, MobileIron, Workspace ONE). - Experience working in a startup or high-growth SaaS environment. Mattermost takes a market-based approach to pay and pay may vary depending on your location. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future. Mattermost is an EEO Employer, we are a remote-first, open-source company. We are continually working to expand our hiring in more countries and regions, ensuring compliance with local laws and regulations, which takes time. Mattermost values your unique perspective—we welcome all applicants. We encourage individuals from all backgrounds to apply and are committed to assessing candidates based on their skills and qualifications. We do not tolerate discrimination against staff or applicants based on race, religion, national origin, age, disability, pregnancy status, veteran status, or other personal characteristics. If you require accommodations during the interview process, please let us know—we’re happy to assist.

Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. Trusted by the U.S. Department of War and Fortune 500s, our platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio/screenshare, and project management—all with full data and operational control. Mattermost powers high-stakes workflows across mission planning, real-time, real-world operations, DevSecOps, incident response, and cyber defense—enabling secure collaboration from tactical edge and DDIL environments to enterprise HQ. Teams operate across web, desktop, and mobile, with embedded interoperability for Microsoft Teams, Outlook, and Microsoft 365. To learn more, visit www.mattermost.com Mattermost is seeking a Software Engineering Manager to lead a small, agile development team dedicated to building mission-critical capabilities on top of the Mattermost platform for US national security customers. You will sit at the intersection of product delivery, customer partnership, and engineering excellence — translating the complex operational needs of defense users into software that works reliably in the most demanding environments on earth. This is not a role for a detached manager. You will be hands-on, customer-facing, and deeply invested in the US national security mission. You'll collaborate closely with customers and forward-deployed engineers to gather requirements from the field, then translate those requirements back to your product engineering team to drive delivery. You will own the full stack — from architecture decisions to shipping — and set the bar for quality, velocity, and accountability. Do you thrive in high-stakes environments where the software you build genuinely matters? Are you energized by leading focused, high caliber engineers and working directly alongside the customers who depend on your work? Do you embrace AI as a force-multiplier for engineering productivity? If so, we want to hear from you. What You'll Do - Lead, mentor, and grow a small, agile full-stack engineering team focused on delivering product capabilities tailored to US national security customers on top of the Mattermost platform. - Own the end-to-end engineering delivery lifecycle: requirements, architecture, development, testing, and release. - Collaborate with customers and forward-deployed engineers to capture requirements directly from the field and translate them into well-scoped, executable engineering work for the core team. - Interface directly and professionally with US national security customers — building trust, managing expectations, and communicating technical trade-offs clearly to non-engineers. - Partner with product and design stakeholders to define roadmaps that balance customer needs, platform constraints, and strategic priorities. - Maintain a full-stack technical perspective, contributing to architecture decisions across frontend, backend, and infrastructure layers. - Establish and uphold engineering standards for code quality, security, testing, and documentation appropriate for a defense-grade software environment. - Champion the adoption of AI-powered development tools (e.g., Cursor, Claude, GitHub Copilot) across the team to accelerate velocity and automate repetitive engineering tasks. - Actively manage team health: conduct regular 1:1s, identify growth opportunities, address blockers, and foster a culture of ownership and psychological safety. - Participate in technical hiring and onboarding to expand the team as the mission scales. - Provide accurate effort estimates, status updates, and risk assessments to leadership and program stakeholders on a regular cadence. What We're Looking For Required Qualifications - BS in Computer Science, Computer Engineering, or related field/experience. - 5+ years of professional software engineering experience, including 2+ years in an engineering management or tech lead role. - Proven full-stack product development experience — comfortable owning decisions across frontend (e.g., React) and backend (e.g., Go, Node.js) layers. - Demonstrated ability to lead small, agile teams in a fast-paced, high-accountability environment. - Experience interfacing directly with customers or end users in a technical capacity — able to listen, synthesize, and communicate complex technical concepts clearly to non-engineers. - Strong written and verbal communication skills for collaborating across distributed, remote teams and presenting to senior stakeholders. - Proficiency with AI/LLM development tools (e.g., Cursor, GitHub Copilot, Claude) with a genuine commitment to integrating them into daily engineering workflows. - US citizenship is required. This role may require the ability to obtain and maintain a US government security clearance in the future. Applicants must reside in the United States. - Applicants must meet eligibility requirements for access to export-controlled information as defined by US export control laws, including EAR and ITAR. - Strong personal alignment with the US national security mission and the communities it serves. - Travel 1-2 weeks per quarter. Clearance Requirements - Must be eligible to obtain and maintain a U.S. security clearance - Active Secret clearance preferred; TS/SCI is a plus Preferred Qualifications - Previous experience working with or for the US Department of Defense (DoD), defense contractors, or the intelligence community. - Familiarity with defense-specific software environments, including DDIL (Disconnected, Denied, Disrupted, Intermittent, and Limited) network conditions. - Experience working fully remotely with distributed, global teams. - Background building secure, compliant software for government or regulated industries. - Experience hiring, growing, and retaining exceptional engineering talent in a remote environment. - Prior work in open-source projects or platform-level software development. - Contributions to Mattermost or similar collaboration/communications platforms. Why Mattermost Mattermost is uniquely positioned at the intersection of secure collaboration, mission software, and defense modernization. This role offers the opportunity to shape and scale Mattermost's presence within one of the largest and most strategic branches of the U.S. Department of Defense. If you thrive in complex environments, understand how mission outcomes drive technology adoption, and want to sell software that matters—we'd love to hear from you. Mattermost takes a market-based approach to pay and pay may vary depending on your location. The successful candidate's starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future. Posting Range $180,000—$275,000 USD Mattermost is an EEO Employer, we are a remote-first, open-source company. We are continually working to expand our hiring in more countries and regions, ensuring compliance with local laws and regulations, which takes time. Mattermost values your unique perspective—we welcome all applicants. We encourage individuals from all backgrounds to apply and are committed to assessing candidates based on their skills and qualifications. We do not tolerate discrimination against staff or applicants based on race, religion, national origin, age, disability, pregnancy status, veteran status, or other personal characteristics. If you require accommodations during the interview process, please let us know—we’re happy to assist.

Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. Trusted by the U.S. Department of War and Fortune 500s, our platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio/screenshare, and project management—all with full data and operational control. Mattermost powers high-stakes workflows across mission planning, real-time, real-world operations, DevSecOps, incident response, and cyber defense—enabling secure collaboration from tactical edge and DDIL environments to enterprise HQ. Teams operate across web, desktop, and mobile, with embedded interoperability for Microsoft Teams, Outlook, and Microsoft 365. To learn more, visit www.mattermost.com We are seeking an experienced and motivated Senior Account Executive to own and grow Mattermost's presence within the United States Navy. In this role, you will develop and execute a strategic territory plan, cultivate relationships across Navy commands, program offices, and the supporting contractor ecosystem, and drive new business and expansion revenue across software and professional services. You will serve as a trusted advisor to Navy stakeholders on secure collaboration, digital transformation, and DevSecOps, while partnering closely with Mattermost's solutions engineering, customer success, and federal channel teams. This is a high-impact, high-visibility role reporting directly to the VP of Federal Sales. The ideal candidate combines a hunter mentality with deep Navy domain expertise and a genuine passion for helping mission-critical teams communicate and collaborate more effectively. What You'll Do Sales & Revenue Generation - Own a defined Navy territory quota and consistently meet or exceed annual and quarterly revenue targets for new logo acquisition and expansion. - Develop and execute a comprehensive territory plan that identifies priority accounts, buying centers, funding vehicles (e.g., O&M, RDT&E, SBIR/STTR), and competitive displacement opportunities. - Manage the full sales cycle from prospecting through negotiation and close, including large, complex, multi-year enterprise software agreements. - Identify, qualify, and advance pipeline across Navy commands, program offices (NAVAIR, NAVSEA, SPAWAR/PEO C4I, NAVWAR, ONR, BUMED, etc.), and associated system integrators and prime contractors. - Partner with the Mattermost channel team to develop Navy-focused reseller and VAR relationships that extend coverage and accelerate deal cycles. Relationship Management & Business Development - Build and maintain deep, trust-based relationships with key decision-makers and influencers including CIOs, program managers, contracting officers, and end-user operators across Navy commands. - Represent Mattermost at Navy and defense industry events, conferences (WEST, Sea-Air-Space, AFCEA events, etc.), and government forums. - Collaborate with the Mattermost partner ecosystem, including systems integrators, VARs, GSA Schedule holders, and Navy OCONUS partners to originate and close business. - Develop account plans and Executive Business Reviews (EBRs) that align Mattermost capabilities to Navy mission requirements and long-term strategic priorities. Strategy & Market Intelligence - Track Navy IT modernization initiatives, budget cycles, and acquisition strategies to anticipate and shape opportunities ahead of the competition. - Provide ongoing competitive intelligence and market feedback to product, marketing, and leadership teams to inform Mattermost's federal go-to-market strategy. - Maintain accurate, up-to-date opportunity and account data in Salesforce and contribute to accurate forecast cadences. - Influence product roadmap by surfacing Navy-specific requirements around compliance (CMMC, STIG, IL4/IL5/IL6), integrations (NIPR/SIPR/JWICS), and deployment models. What We're Looking For Required Qualifications - 7+ years of enterprise software sales experience, with a minimum of 4 years selling directly to U.S. Navy or broader U.S. Navy/DoD accounts. - Demonstrated track record of meeting or exceeding quota in a direct enterprise software sales role, ideally with deal sizes of $500K–$5M+. - Established network of relationships within the Navy: program offices, N-codes (N2/N6), PEO organizations, commands, and/or supporting prime contractors. - Active DoD security clearance (Secret minimum required; Top Secret/SCI strongly preferred) or the ability and willingness to obtain one. - Deep familiarity with Navy and DoD acquisition processes, including FAR/DFARS, contract vehicles (GSA MAS, SEWP, CIO-SP3, DIBNet, etc.), and funding mechanisms. - Experience selling into CMMC, FedRAMP, IL4/IL5/IL6, or similar DoD compliance environments. - Proficiency with Salesforce or comparable CRM; strong pipeline management and forecasting discipline. - Exceptional communication and executive presentation skills; comfortable briefing flag officers, SES civilians, and C-level executives. - Self-starter with the ability to thrive in a fast-moving, remote-first environment with high levels of autonomy. - Availability to travel one week of the month for customer/prospect visits &/or event participation. - This role may require the candidate to obtain and maintain a U.S. security clearance in the future. as such, applicants must be U.S. citizens and eligible to obtain a U.S. government security clearance. Preferred Qualifications - Prior U.S. military service, preferably Navy or Marine Corps, or extensive experience in defense contracting supporting Navy programs. - Experience selling open-source software, DevSecOps tooling, or collaboration platforms in a federal context. - Existing relationships with key Navy IT modernization initiatives such as Project Overmatch, CANES, or NIWC-managed programs. - Familiarity with Mattermost, Slack, Microsoft Teams, or competing messaging/collaboration platforms in a federal deployment context. - Experience working with channel partners and systems integrators such as Leidos, SAIC, Booz Allen Hamilton, General Dynamics IT, or similar. - Bachelor's degree in Business, Information Technology, or a related field (or equivalent professional experience). Why Mattermost Mattermost is uniquely positioned at the intersection of secure collaboration, mission software, and defense modernization. This role offers the opportunity to shape and scale Mattermost’s presence within one of the largest and most strategic branches of the U.S. Department of Defense. If you thrive in complex environments, understand how mission outcomes drive technology adoption, and want to sell software that matters, we’d love to hear from you. Mattermost takes a market-based approach to pay and pay may vary depending on your location. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future. Posting Range $195,000—$260,000 USD Mattermost is an EEO Employer, we are a remote-first, open-source company. We are continually working to expand our hiring in more countries and regions, ensuring compliance with local laws and regulations, which takes time. Mattermost values your unique perspective—we welcome all applicants. We encourage individuals from all backgrounds to apply and are committed to assessing candidates based on their skills and qualifications. We do not tolerate discrimination against staff or applicants based on race, religion, national origin, age, disability, pregnancy status, veteran status, or other personal characteristics. If you require accommodations during the interview process, please let us know—we’re happy to assist.

Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. Trusted by the U.S. Department of War and Fortune 500s, our platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio/screenshare, and project management—all with full data and operational control. Mattermost powers high-stakes workflows across mission planning, real-time, real-world operations, DevSecOps, incident response, and cyber defense—enabling secure collaboration from tactical edge and DDIL environments to enterprise HQ. Teams operate across web, desktop, and mobile, with embedded interoperability for Microsoft Teams, Outlook, and Microsoft 365. To learn more, visit www.mattermost.com Mattermost is seeking a Technical Account Manager (TAM) to serve as a trusted technical advisor to our U.S. Federal and enterprise customers. In this role, you will ensure the successful deployment, integration, and secure operation of the Mattermost platform in mission-critical and high-security environments. You will combine expertise in infrastructure, cybersecurity, and DevSecOps with strong customer engagement and project leadership skills. As a strategic partner, you will bridge engineering, product, and customer teams, driving secure, compliant, and scalable implementations that enable organizations to collaborate with confidence. Key Responsibilities Customer Success & Secure Solution Delivery - Lead technical onboarding, configuration, and production deployments for strategic enterprise and U.S. Federal customers - Design, validate, and implement secure, scalable architectures for Mattermost across cloud, on-premise, hybrid, and air-gapped environments - Support alignment with security and compliance frameworks such as FedRAMP, NIST 800-53, DoD STIG, and SOC 2 - Guide customers in integrating Mattermost with authentication and identity management systems (SSO, SAML, OAuth), DevOps pipelines, and monitoring tools - Provide proactive technical guidance to minimize operational risk and ensure long-term platform success Technical Leadership & Advocacy - Serve as the primary technical point of contact for assigned accounts - Collaborate with Product, Engineering, and Support to resolve complex technical issues and advocate for customer needs - Develop reusable deployment assets including scripts, playbooks, and technical documentation to accelerate implementations - Participate in internal reviews to improve onboarding methodologies and deployment best practices Communication & Stakeholder Management - Present complex technical concepts to both executive and technical stakeholders, tailoring communication to audience and context - Build trusted relationships that drive adoption, expansion, and long-term customer success - Maintain detailed records of architectural decisions, deployment strategies, and customer feedback Required Qualifications - 5+ years of experience in Technical Account Management, Sales Engineering, Customer Success Engineering, or a similar customer-facing technical role - Strong technical knowledge of Linux system administration, networking, containers (Docker/Kubernetes), and cloud infrastructure - Hands-on scripting or development experience with Python, Go, Node.js, or similar languages - Strong understanding of cybersecurity principles and secure system architecture - Familiarity with DevSecOps tools and workflows (GitHub, Jenkins, Jira, Terraform, etc.) - Experience managing large enterprise or government customers and aligning technical delivery with business and security requirements - Excellent communication skills with the ability to collaborate across technical and non-technical stakeholders - Applicants must meet eligibility requirements for access to export-controlled information as defined by U.S. export control laws, including EAR and ITAR. - This role may require the candidate to obtain and maintain a U.S. government security clearance in the future. - Applicants must therefore be U.S. citizens and eligible to obtain a security clearance Preferred Qualifications - Experience working with U.S. Federal agencies, defense organizations, or regulated industries - Familiarity with IT Service Management (ITSM) frameworks - Knowledge of compliance standards such as FedRAMP, NIST, SOC 2, or ISO 27001 - Experience with secure collaboration platforms or open-source technologies - Exposure to mobile device management (Intune, Workspace ONE, MobileIron) environments - Experience working in a startup or high-growth SaaS environment Mattermost takes a market-based approach to pay and pay may vary depending on your location. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future. Posting Range $150,000—$215,000 USD Mattermost is an EEO Employer, we are a remote-first, open-source company. We are continually working to expand our hiring in more countries and regions, ensuring compliance with local laws and regulations, which takes time. Mattermost values your unique perspective—we welcome all applicants. We encourage individuals from all backgrounds to apply and are committed to assessing candidates based on their skills and qualifications. We do not tolerate discrimination against staff or applicants based on race, religion, national origin, age, disability, pregnancy status, veteran status, or other personal characteristics. If you require accommodations during the interview process, please let us know—we’re happy to assist.

Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. Trusted by the U.S. Department of War and Fortune 500s, our platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio/screenshare, and project management—all with full data and operational control. Mattermost powers high-stakes workflows across mission planning, real-time, real-world operations, DevSecOps, incident response, and cyber defense—enabling secure collaboration from tactical edge and DDIL environments to enterprise HQ. Teams operate across web, desktop, and mobile, with embedded interoperability for Microsoft Teams, Outlook, and Microsoft 365. To learn more, visit www.mattermost.com Mattermost is seeking a Director of Field & Channel Marketing, North America, to lead regional marketing strategy, partner engagement, and demand generation across two priority regions, spanning both Public Sector (Federal, Defense, SLED) and Enterprise markets. As the senior marketing partner to the VP Public Sector, and the Director of Sales, Americas, you will be responsible for building awareness, driving pipeline, and strengthening relationships with customers and partners across defense, intelligence, security, and enterprise. The ideal candidate combines the mindset of a strategic marketing leader, the precision of a pipeline operator, and the storytelling ability of a brand ambassador. You will translate our strategy into high-impact regional campaigns and plays that engage customers, partners, and influencers across defense, intelligence, security, and enterprise sectors. You will develop programs that scale, create measurable impact on pipeline and ARR, and establish Mattermost as the trusted choice for sovereign, mission-critical collaboration. Key Responsibilities: Strategic Leadership - Define and own the US Public Sector and Enterprise marketing strategy, ensuring alignment with sales priorities and revenue goals. - Manage regional marketing plans and budgets, making data-driven decisions to optimize investment. - Partner with the VP Public Sector, and the Director of Sales, Americas on development, execution and alignment of regional go-to-market plans Partner and Ecosystem Marketing - Build and scale partner marketing programs with defense contractors, system integrators, and strategic alliances. - Develop joint campaigns and sales/partner enablement content that drive awareness, adoption, and pipeline contribution. - Strengthen relationships with partners to expand reach and credibility in key markets. Demand Generation & ABM Campaigns - Oversee ABM and demand generation programs in collaboration with Sales and Growth Marketing, ensuring campaigns deliver measurable pipeline impact in named accounts and frameworks using a variety of tactics, including events, email, webinars, paid social, digital marketing, and content syndication. - Drive pipeline growth and conversion in named accounts and frameworks. - Partner with Growth and ABM teams to measure performance and optimize campaigns. Events & Field Engagements: - Set the strategy for regional events, focusing on engagements that build trust with customers, partners, and target accounts, partnering with the Event Manager to deliver high-impact conferences, forums, and partner-led activities. Content & Messaging - Define regional messaging and proof points (case studies, references) aligned to sovereignty, resilience, and interoperability. - Collaborate with Content Marketing to develop compelling content that supports all campaign touchpoints, including email, landing pages, paid social ads, event messaging, and other marketing initiatives as well as adapting global assets for regional needs. - Drive a thought leadership cadence that supports awareness, consideration, and decision stages. Market Insights and Optimization - Analyze market trends, procurement requirements, and competitive positioning to inform GTM strategy. - Consistently measure and enhance the performance of regional marketing programs to ensure alignment with business objectives. - Report regularly on regional performance, pipeline contribution, and campaign effectiveness providing insights to inform executive decision-making. Required Background/Skill: - 7+ years of B2B and/or B2G marketing experience with regional ownership, ideally across EMEA and/or APAC. - Proven track record in demand generation, account-based marketing (ABM), and partner marketing. - Experience building and executing marketing strategies in regulated industries such as defense, intelligence, security, or critical infrastructure. - Strong ability to align marketing strategy with sales objectives and deliver measurable outcomes in pipeline and ARR. - Skilled at working with ecosystem partners (defense contractors, system integrators, alliances) to expand market reach and credibility. - Excellent communication and stakeholder management skills, credible with senior customers, partners, and internal executives. - Strong project management and leadership skills, with the ability to manage multiple priorities across regions in a fast-paced environment. - Data-driven approach with experience using analytics tools to optimize performance. · Highly adaptable to changing priorities and market dynamics. - Willingness to travel (c.20-30%) and operate across time zones. - This role may require the candidate to obtain and maintain a U.S. security clearance in the future. As such, applicants must be U.S. citizens and eligible to obtain a U.S. government security clearance. Preferred Qualifications: - Experience engaging with the Defense Industrial Base (DIB) or equivalent partner ecosystems. · - Familiarity with regional capture strategies and government procurement processes. · - Background in leading marketing programs across multi-region portfolios (US Public Sector and Enterprise). Key Attributes: - Strategic Thinker: Ability to see the big picture while managing the tactical execution. - Collaborative: Works well cross-functionally with sales, product marketing, and content teams. - Data-Driven: Utilizes insights to inform and optimize campaign strategies. - Customer-Centric: Focuses on delivering value to target accounts through personalized content and messaging. Mattermost takes a market-based approach to pay and pay may vary depending on your location. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future. Posting Range $169,000—$200,000 USD Mattermost is an EEO Employer, we are a remote-first, open-source company. We are continually working to expand our hiring in more countries and regions, ensuring compliance with local laws and regulations, which takes time. Mattermost values your unique perspective—we welcome all applicants. We encourage individuals from all backgrounds to apply and are committed to assessing candidates based on their skills and qualifications. We do not tolerate discrimination against staff or applicants based on race, religion, national origin, age, disability, pregnancy status, veteran status, or other personal characteristics. If you require accommodations during the interview process, please let us know—we’re happy to assist.

Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. Trusted by the U.S. Department of War and Fortune 500s, our platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio/screenshare, and project management—all with full data and operational control. Mattermost powers high-stakes workflows across mission planning, real-time, real-world operations, DevSecOps, incident response, and cyber defense—enabling secure collaboration from tactical edge and DDIL environments to enterprise HQ. Teams operate across web, desktop, and mobile, with embedded interoperability for Microsoft Teams, Outlook, and Microsoft 365. To learn more, visit www.mattermost.com Mattermost is seeking a Senior Account Executive – Federal (USAF Focus) to own and expand one of our most strategic territories, centered on the United States Air Force (USAF). This is a quota-carrying individual contributor role focused exclusively on strategic selling, renewal expansion, and net-new growth across the Air Force ecosystem. The territory includes a significant multi-million-dollar renewal footprint (including AFMC and Platform One–aligned environments) and substantial opportunity for expansion. The ideal candidate brings deep USAF domain expertise, established relationships across acquisition and mission stakeholders, and experience working with Federal Systems Integrators (FSIs) to accelerate program-level adoption. Key Responsibilities Own and Grow the USAF Territory - Serve as the primary seller responsible for Mattermost’s USAF business, including AFMC, MAJCOMs, program offices, and mission-aligned stakeholders. - Develop and execute multi-year account strategies aligned to Air Force modernization and mission priorities. - Expand Mattermost’s footprint across additional commands and programs through strategic penetration and executive alignment. Drive Strategic Renewals and Expansion Outcomes - Maintain executive ownership of large-scale renewals and expansion motions across the territory. - Partner closely with an Account Manager who supports renewal execution, while retaining accountability for strategic renewal outcomes. - Identify cross-program expansion opportunities within existing deployments. Close Complex Enterprise SaaS Transactions - Lead sophisticated, multi-threaded sales cycles involving technical validation, security review, contracting workflows, and executive sponsorship. - Navigate Federal procurement environments, including FAR/DFARS requirements and common contract vehicles (IDIQs, GWACs, OTAs). - Build strong internal deal governance and forecasting discipline through Salesforce. Execute a Federal Partner Ecosystem Motion - Develop and manage strategic co-sell relationships with major Federal Systems Integrators (FSIs), including Lockheed Martin, Raytheon, Northrop Grumman, Leidos, SAIC, LMI, and others. - Partner effectively with Federal distributors and VARs (e.g., Carahsoft) to navigate contract vehicles, renewal workflows, and net-new agency entry. - Align with partner capture teams and distributor resources to position Mattermost within prime contracts, task orders, and program-level pursuits. - Maintain clear ownership of deal strategy and close execution while leveraging partners to accelerate procurement and expand reach. Deliver Predictable Revenue and Forecast Accountability - Carry and achieve an annual quota across net-new and strategic expansion outcomes. - Maintain high forecast accuracy, deal hygiene, and pipeline rigor. - Provide clear visibility to Sales leadership and Finance on deal timing, risks, and execution plans. Required Qualifications - 8–12+ years of enterprise SaaS sales experience - 5+ years selling directly into U.S. Federal / DoD accounts - Demonstrated success selling into the USAF ecosystem specifically (AFMC, MAJCOMs, PEOs, program offices) - Proven ability to close complex, multi-million-dollar software transactions - Experience co-selling with Federal Systems Integrators and navigating partner-influenced deal structures - Deep understanding of DoD procurement, acquisition, and contracting processes - This role may require the candidate to obtain and maintain a U.S. security clearance in the future. as such, applicants must be U.S. citizens and eligible to obtain a U.S. government security clearance. Clearance Requirements - Must be eligible to obtain and maintain a U.S. security clearance - Active Secret clearance preferred - TS/SCI clearance is a plus Preferred Qualifications - Experience selling secure collaboration, DevSecOps, cybersecurity, or mission-critical infrastructure software - Familiarity with Platform One, mission software delivery organizations, and USAF modernization initiatives - Experience supporting deployments in controlled or classified environments (IL4/IL5/IL6) - Established relationships within key USAF stakeholders and FSI partner ecosystems What Success Looks Like in Year 1 - Successfully retain and expand major USAF renewal footprint - Build executive-level relationships across Air Force acquisition and mission hierarchies - Establish repeatable co-sell execution with strategic FSIs - Close net-new program opportunities across USAF commands - Deliver predictable, finance-ready forecasting and pipeline visibility Why Mattermost Mattermost is uniquely positioned at the intersection of secure collaboration, mission software, and defense modernization. This role offers the opportunity to shape and scale Mattermost’s presence within one of the largest and most strategic branches of the U.S. Department of Defense. If you thrive in complex environments, understand how mission outcomes drive technology adoption, and want to sell software that matters, we’d love to hear from you. Mattermost takes a market-based approach to pay and pay may vary depending on your location. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future. Posting Range $195,000—$250,000 USD Mattermost is an EEO Employer, we are a remote-first, open-source company. We are continually working to expand our hiring in more countries and regions, ensuring compliance with local laws and regulations, which takes time. Mattermost values your unique perspective—we welcome all applicants. We encourage individuals from all backgrounds to apply and are committed to assessing candidates based on their skills and qualifications. We do not tolerate discrimination against staff or applicants based on race, religion, national origin, age, disability, pregnancy status, veteran status, or other personal characteristics. If you require accommodations during the interview process, please let us know—we’re happy to assist.

Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. Trusted by the U.S. Department of War and Fortune 500s, our platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio/screenshare, and project management—all with full data and operational control. Mattermost powers high-stakes workflows across mission planning, real-time, real-world operations, DevSecOps, incident response, and cyber defense—enabling secure collaboration from tactical edge and DDIL environments to enterprise HQ. Teams operate across web, desktop, and mobile, with embedded interoperability for Microsoft Teams, Outlook, and Microsoft 365. To learn more, visit www.mattermost.com Mattermost is seeking an experienced and driven Federal Solution Architect to serve as the technical face of Mattermost within the U.S. Defense and Intelligence Community (IC). In this role, you will provide hands-on technical sales support to federal customers and partners, architect solutions that meet the unique requirements of classified and mission-critical environments, and drive the retention and growth of Mattermost's federal revenue base. This is a high-impact, customer-facing role that sits at the intersection of technical expertise and strategic sales. You will partner closely with Federal Account Executives to advance opportunities, deepen customer relationships, and ensure Mattermost remains the platform of choice for secure collaboration across Defense and Intelligence organizations. The long-term roadmap for this position is progression to a senior-level (L6) Solution Architect. Key Responsibilities Technical Sales & Pre-Sales Engineering - Serve as the primary technical resource for Mattermost's U.S. Defense and Intelligence customers, partners, and prospects. - Lead technical discovery sessions, product demonstrations, architecture reviews, and proof-of-concept engagements tailored to federal environments. - Translate complex customer requirements — including compliance mandates (FedRAMP, IL2, IL4/5, IL6, PL3, DISA SRG, Zero Trust) — into actionable Mattermost solution architectures. - Partner with Federal Account Executives to develop and execute technical win strategies for new and expansion opportunities. Customer Success & Retention - Act as a trusted technical advisor to existing federal accounts, proactively identifying risks and opportunities to strengthen customer relationships and retention. - Support deployment planning, integration design, and technical onboarding for Defense and IC customers operating in on-premise, air-gapped, and private cloud environments. - Collaborate with Customer Success, Support, and Engineering teams to resolve technical escalations and ensure customer satisfaction. Solution Architecture & Thought Leadership - Design and document reference architectures for Mattermost deployments within DoD and IC infrastructure, including Platform One, Big Bang, and other DevSecOps frameworks and platforms. - Provide technical guidance on integrations with tools commonly used in federal environments (e.g., GitLab, Jira, ServiceNow, SIEM platforms, and CI/CD pipelines). - Represent Mattermost at federal industry events, conferences, and partner engagements. - Contribute product feedback and market intelligence from the field to inform the Mattermost product roadmap. Partner Enablement - Enable defense contractors, system integrators, and channel partners with the technical knowledge and tools needed to position, deploy, and support Mattermost solutions. - Support joint solution development and co-selling motions with key federal partners. Required Qualifications - 5+ years of experience in a Solution Architect, Sales Engineer, Pre-Sales Engineer, or comparable technical sales role — with a strong focus on U.S. Federal / Defense / Intelligence customers. - Deep understanding of federal IT environments, including on-premise, air-gapped, and classified network deployments. - Familiarity with federal compliance frameworks and security standards such as FedRAMP, DISA SRG (IL4/IL5/IL6), NIST 800-53, CMMC, and Zero Trust Architecture. - Hands-on experience with Linux-based infrastructure, Kubernetes/OpenShift (e.g., Platform One / Big Bang), and container-based deployments. - Working knowledge of networking, identity management (SAML/SSO/LDAP), database administration (PostgreSQL), and DevSecOps toolchains. - Ability to write simple integrations and automations using languages such as Python, Go, or JavaScript, and familiarity with REST APIs and webhooks. - Excellent communication and presentation skills — able to convey complex technical concepts to both technical and executive audiences. - Self-starter with the ability to operate independently in a fast-paced, remote-first environment. - Willingness to travel to customer sites, partner events, and industry conferences as needed (up to 25-40%). - U.S. citizenship required. Must be eligible to obtain and maintain a U.S. government security clearance. Preferred Qualifications - Active U.S. security clearance (Secret or above); existing TS/SCI highly desired. - Prior experience supporting DoD programs such as Platform One, or deployments within the Intelligence Community. - Experience with Mattermost or similar on-prem collaboration platforms (Wickr, Jabber, Skype for Business, Rocket.Chat, Element/Matrix). - Background in secure messaging, C2 (Command and Control) systems, or operational technology (OT) environments. - Certifications such as AWS Solutions Architect, CKA/CKAD, CISSP, Security+, or equivalent. - Experience working at or selling into defense contractors, system integrators, or federal agencies. Why Mattermost? - Mission-driven work: Your contributions directly support national security and the teams who protect it. - Growth opportunity: Clear path from this role to a senior-level (L6) Solution Architect position. - Remote-first culture: Work from anywhere in the U.S. with a globally distributed, high-trust team. - Open source at the core: Be part of a vibrant developer community shaping the future of secure collaboration. - High impact: Join at a critical inflection point for Mattermost's federal business, with direct influence on a $15M+ revenue segment. Compensation Mattermost takes a market-based approach to pay, and compensation may vary depending on your work location in the U.S. The successful candidate's starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future. Posting Range $225,000—$250,000 USD Mattermost is an EEO Employer, we are a remote-first, open-source company. We are continually working to expand our hiring in more countries and regions, ensuring compliance with local laws and regulations, which takes time. Mattermost values your unique perspective—we welcome all applicants. We encourage individuals from all backgrounds to apply and are committed to assessing candidates based on their skills and qualifications. We do not tolerate discrimination against staff or applicants based on race, religion, national origin, age, disability, pregnancy status, veteran status, or other personal characteristics. If you require accommodations during the interview process, please let us know—we’re happy to assist.