• Develop and maintain frontend applications using Angular and TypeScript. • Build scalable, reusable, and maintainable user interfaces aligned with established architecture and design patterns. • Integrate frontend applications with backend services through REST APIs, real-time communication, and authentication flows. • Contribute to a modular frontend ecosystem, supporting shared libraries, consistency, and reuse across applications. • Support code quality, frontend best practices, observability, and maintainability across the application lifecycle. • Collaborate with backend, design, and product teams, participating in technical discussions, sprint activities, and knowledge sharing.

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.

• Perform ongoing maintenance, updates, and improvements across multiple client websites • Implement content updates, layout adjustments, and bug fixes • Develop and customize WordPress themes, plugins, and PHP-based functionality • Ensure websites are stable, secure, and optimized • Build and modify responsive layouts using HTML, CSS, and JavaScript • Translate mockups into clean, maintainable code • Ensure cross-browser compatibility and performance • Create website mockups and UI concepts for client approval using tools like Figma, Adobe XD, or similar • Maintain visual consistency with brand guidelines • Support light graphic design needs (banners, layout elements, visual assets) • Collaborate with SEO efforts by ensuring technical best practices (site speed, structure, clean code) • Implement SEO-friendly page structures and updates • Contribute to building internal tools or automations to improve team efficiency • Identify opportunities to streamline workflows and reduce manual work. • Participate in client calls when needed • Communicate clearly and professionally with internal team members and clients • Occasionally work independently with clients on updates or requests

Role Description The Senior Web Developer (WordPress) is a strategic and hands-on technical leader responsible for the performance, scalability, governance, and continuous evolution of NORD’s web and digital application ecosystem, serving more than one million annual users. This role owns a complex portfolio of digital properties including NORD’s primary website, IAMRARE registry microsites, Membership Portal, and emerging platforms such as NORDCentral. The position combines web engineering, systems integration, product ownership, and cross-functional leadership to deliver secure, accessible, and high-impact digital experiences aligned with NORD’s mission. The Senior Web Developer collaborates closely with Marketing, Programs, Development, IT, and external partners. Essential Duties and Responsibilities - Own and manage NORD’s web ecosystem, including WordPress platforms and multisite architecture supporting 20+ IAMRARE registry microsites, ensuring reliability, scalability, security, accessibility, and performance. - Lead development and maintenance of websites, including custom themes, plugins, multilingual workflows, and governance standards. - Oversee key digital platforms and integrations, including the Membership Portal (WordPress, Salesforce, Stripe) and NORDCentral, ensuring seamless system interoperability. - Design and maintain end-to-end integration architecture across CRM, payment, and content systems; develop custom applications and internal tools as needed. - Evaluate and implement emerging technologies, including AI and automation, to improve operational efficiency and digital capabilities. - Lead web initiatives such as microsites, campaign pages, and enterprise CRM integrations, ensuring data integrity, workflow automation, and cross-platform alignment. - Collaborate with Marketing, Programs, Development, and external partners to deliver high-quality, compliant digital experiences. - Manage project timelines, priorities, and resources across multiple initiatives using Agile or hybrid methodologies. - Monitor and optimize website performance, SEO/SEM, UX, accessibility, and conversion rates; develop reporting and dashboards to inform decision-making. - Own CRM and platform integrations (e.g. Salesforce, Stripe), ensuring data integrity, supporting member lifecycle processes, and resolving issues impacting revenue and user experience. - Design and maintain APIs, data pipelines, and ETL processes to support system interoperability and data management. - Supervise and mentor web team members; provide training, manage workflows, and enforce governance for internal contributors. - Ensure compliance with accessibility (WCAG), privacy, and security standards; maintain documentation of systems, processes, and architecture. - Perform other duties as assigned. Qualifications - Bachelor’s degree in Computer Science, Marketing, Communications, Business, or equivalent experience. - 7+ years of experience in web application development in business-critical environments (preferably nonprofit, healthcare, or regulated industries). - 5–7+ years of WordPress experience, including multisite architecture and complex integrations. - Demonstrated experience leading projects and/or supervising staff. Requirements - Advanced knowledge of LAMP stack, HTML5, CSS, PHP, and MySQL. - Deep expertise in WordPress architecture, including multisite and plugin development. - Strong experience with REST APIs and integration architecture. - Proficiency in JavaScript and modern front-end frameworks (preferred). - Experience with Salesforce, Stripe, and CRM/marketing automation ecosystems. - Familiarity with analytics platforms (Google Analytics, Search Console, etc.). - Experience with version control (Git) and CI/CD workflows. - Knowledge of data migration, ETL processes, and system interoperability. - Understanding of UX/UI principles and accessibility standards. - Exposure to AI/ML tools and automation platforms (preferred). - Familiarity with healthcare or regulated data environments (preferred). - Strong project management skills (Agile preferred). - Excellent communication, organizational, and leadership skills. - Self-motivated, detail-oriented, and mission-driven. Working Conditions - Telecommuting position based in the U.S. - Essential functions are typically performed in a home office setting with a low level of noise. - Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. NORD is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran, or disability status.