Role Description Peraton is seeking an experienced systems Virtual Desktop Engineer to join our national intelligence program that delivers engineering, application development, deployment, operations, upgrades and sustainment of products and services to achieve our client’s global missions. The Virtual Desktop Engineer will have an emphasis on User Profiles. - Manage user accounts, permissions, licenses, and monitoring of system performance to proactively resolve technical issues. - Analyze and interpret data to improve infrastructure performance, identify areas for improvement, and implement solutions, including monitoring system performance and troubleshooting issues to ensure compliance with performance standards. - Ensure data security and compliance with industry standards and regulations. - Maintain smooth operation of multi-user computer systems, including coordination with network engineers. - Monitor and manage enterprise system resources, including CPU usage, disk usage, and response times to maintain operating efficiency. - Assess and remediate the enterprise design and implementation to mitigate performance and cybersecurity risks. - Perform systems security administration functions, including creating user profiles and accounts. - Provide Tier 1 and Tier 2 problem identification, diagnosis, and resolution of problems. - Configure operating systems and support enterprise servers. - Install and configure database and application software. - Perform database backups and system restoration, monitor database performance, and perform troubleshooting. - Interact with users and interfacing applications. - Provide hardware and software backup recovery. - Other duties may include setting up administrator accounts, maintaining system documentation, tuning system performance, installing system-wide software, and allocating mass storage space. - Develop, implement and maintain processes, procedures, test cases, test results, issue resolutions, performance analysis, and user guidelines/instructions documentation. Position is Contingent on Contract Award Qualifications - Active Top Secret/ Sensitive Compartmented Information (TS/SCI) clearance with ability to pass and obtain a Poly Clearance. - Minimum of 5 years relevant experience with bachelor’s degree; Minimum of 3 years with master’s degree; Minimum of 0 years with PhD or 9+ years of relevant work experience can be used in lieu of a degree. - Current CISSP or Security + Certification. - Proven work experience as a Systems Engineer, Systems Admin or similar role in a large, distributed computing environment. - Experience with data analysis tools, knowledge of system performance metrics, and familiarity with infrastructure management systems. - Excellent communication and teamwork skills. - Excellent problem-solving skills. - Strong understanding of User Profile administration. Requirements - Active TS/SCI with Poly clearances. - Current VMware, Nutanix, or similar Certification e.g. VCP, NCP, etc. - Experience with Docker and Kubernetes. - Experience with Terraform or Ansible. - Experience with Dell PowerFlex. - Experience working in a large enterprise environment. - Knowledge of storage area networks to include network operating systems, SAN protocols, SAN management, and SAN physical configuration. - Minimum of 8-12 years’ experience, in supporting virtualization technologies preferred. - Strong understanding of data center networking (TCP/IP, switching/routing, ports and protocols, firewall concepts, load-balancing). - Strong Scripting experience in one or more of the following: PowerShell, Ansible, Puppet, Chef, VBScript, C++, Unix Shell, Python, Perl, Ruby, JavaScript, etc. - Strong understanding of storage protocols (e.g. NFS, SMB, S3, FC, iSCSI, NVMe). - Good knowledge of Active Directory, DHCP, DNS, Group Policy. - Knowledge of MS Windows Server operating systems including Server 2016, 2019, and 2022 as well as RHEL and SLES operating systems. - Knowledge of MS database server SQL Server 2008 R2 and later. - Knowledge of container technologies including but not limited to Docker, Kubernetes, and Rancher. - Knowledge of IaaS in cloud using MS Azure, AWS, or GCP. Benefits - Target Salary Range: $80,000 - $128,000. - Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. - Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Company Description Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.

Role Description As a Principal Support Engineer at Yubico, you will address complex technical challenges at the intersection of hardware, software, and global security standards to ensure customer security at scale. In this role, you will act as the technical lead of the US technical support team, reporting directly to and working closely with the Director of Technical Support, providing mentorship and strategic direction to maintain excellence in regional operations. You possess comprehensive expertise in Yubico’s core offerings, from the YubiKey ecosystem to our SDKs and professional services. You stay current with industry trends to develop actionable strategies that strengthen the support organization. Your contributions focus on long-term impact by establishing knowledge frameworks that improve problem resolution and prevention. Tasks & Responsibilities - Handle Critical Escalations: Serve as the final tier of support for the most complex, high-priority, and technically demanding customer issues globally. - Technical Leadership & Mentorship: Elevate the technical baseline of the entire support organization by mentoring junior and senior engineers, leading technical deep-dives, and conducting training sessions. - Bridge Support and Engineering: Work with Engineering, QA, and Product teams to identify bugs, replicate edge-case issues, and advocate for product improvements based on customer impact. - Knowledge Management: Author, review, and maintain high-quality internal and external documentation, knowledge base articles, and troubleshooting guides. - Process & Strategy Optimization: Contribute to Technical Support team strategies, designing and implementing improved processes to enhance time-to-resolution and overall organizational efficiency. Qualifications - 10+ years of experience in technical support, engineering, or a related cybersecurity field. - Proven expertise in troubleshooting hardware and software integrations, with a deep understanding of core authentication concepts. - Demonstrated experience in a technical leadership or mentorship role, with the ability to uplift the skills of a diverse group of support engineers. - Exceptional ability to distill complex technical topics into clear, actionable documentation and guidance for both internal teams and external customers. Requirements - Previous experience in domain administration, including advanced knowledge of Active Directory Certificate Services deployment and advanced troubleshooting is strongly preferred. - Advanced knowledge of industry standards such as FIDO2, WebAuthn, PIV, OpenPGP, OATH-TOTP and PKCS11. - Previous experience leading or coordinating support operations within the US market or other global regions. - A history of developing new troubleshooting methodologies or automated tools that significantly improved support scalability. - Relevant industry certifications (e.g., CISSP, Security+, Microsoft Identity and Access Administrator). - Scripting and automation experience (Python, PowerShell, Bash, etc.) to build support tools or automate repetitive tasks. - Previous experience working with hardware tokens or HSMs (Hardware Security Modules). Benefits - Freedom and Flexibility: Work 100% from home or choose to work hybrid/onsite. - Wellness benefit: 1,200 CAD per year. - Continuing Education Stipend: $3,000 USD. - Paid Time Off: 15 days vacation. - Sick Days: 10 days. - Occupational Pension: Yubico offers a pension fund and contributes up to 5% of base salary. - Company Health Insurance: Health insurance offered to employees (medical and dental).

Role Description This is a high-ownership, high-impact role. As the Senior Payments Engineer, you will serve as a founding technical voice on the orchestration platform — architecting systems, making consequential infrastructure decisions, and owning a significant portion of the payments stack from the ground up. You will work alongside the CTO and business leadership to translate complex payment industry dynamics into elegant, scalable engineering solutions. This is not a role for an engineer who has simply consumed payment APIs. We are looking for someone who has built the infrastructure that others sit on top of — and who is ready to do it again at speed. What You'll Do - Platform Architecture & Design - Architect and build a next-generation payment orchestration layer that abstracts across multiple gateways, processors, and acquiring relationships. - Design intelligent routing engines that optimize for authorization rate, cost, latency, and risk tolerance at the transaction level. - Own the technical vision for gateway abstraction — enabling the business to add or swap processors without disrupting merchant integrations. - Core Payments Engineering - Build and maintain robust implementations of card authorization flows, settlement pipelines, tokenization/vaulting, and recurring billing infrastructure. - Integrate directly with payment processors and acquirers via their native APIs (Adyen, Stripe, and others), handling edge cases, retries, idempotency, and failure modes. - Manage the full payment lifecycle: authorization, capture, void, refund, dispute, and chargeback handling at scale. - Infrastructure & Reliability - Design distributed, fault-tolerant systems capable of handling high-volume transaction loads with sub-second latency requirements. - Implement observability frameworks — metrics, alerting, and tracing — specific to payment flows so the business has real-time visibility into authorization rates, decline reasons, and system health. - Establish engineering standards, runbooks, and on-call practices for payments infrastructure. - Security & Compliance - Ensure the platform is built and maintained to PCI DSS standards, working with internal and external QSAs as required. - Architect fraud prevention and risk control layers that protect merchants and the business without creating unnecessary friction for legitimate transactions. - Implement tokenization and encryption best practices for cardholder data handling. - Cross-Functional Leadership - Collaborate with product, operations, and risk teams to translate business requirements into technical specifications. - Provide technical mentorship and guidance to junior engineers as the team scales. - Contribute to vendor evaluation and partnership decisions with processors, gateways, and acquiring banks. Qualifications - 5+ years of backend engineering experience, with at least 3 years focused on payments infrastructure (not simply payments API consumption). - Direct, hands-on integration experience with Adyen and/or Stripe at the API and platform level — understanding their terminal APIs, webhooks, dispute flows, payouts, and edge-case behaviors. - Demonstrable experience building payment orchestration, gateway abstraction, or multi-processor routing systems. - Deep knowledge of card processing: authorization request/response flows, ISO 8583 or equivalent message formats, settlement file handling, chargeback lifecycle, and acquiring bank relationships. - Strong proficiency with backend engineering fundamentals: RESTful and event-driven API design, distributed systems, asynchronous processing, and database design for financial data. - Hands-on experience with tokenization, card vaulting, network tokens, and recurring billing / subscription payment models. - Working knowledge of PCI DSS compliance requirements and their engineering implications (scope reduction, P2PE, tokenization strategies). - Experience implementing fraud prevention controls, velocity checks, risk scoring, and chargeback prevention tooling. - Proven ability to build for reliability: idempotency, retry logic, circuit breakers, and graceful degradation in payment-critical systems. Key Technical Skills - Adyen APIs - Stripe APIs - Payment Orchestration - Gateway Abstraction - Card Authorization Flows - Settlement & Reconciliation - Tokenization / Vaulting - Recurring Billing - PCI DSS - Fraud & Risk Controls - Distributed Systems - API Architecture - Event-Driven Design - High-Volume Processing - Observability Bonus Experience (Nice to Have) - Experience operating within or building for merchant acquiring, sponsor bank, ISO/MSP, or Payment Facilitator (PayFac) models. - Background working with high-volume, real-time transaction environments (millions of transactions per day). - Familiarity with alternative payment methods: ACH/bank transfers, digital wallets (Apple Pay, Google Pay), BNPL, or international payment rails. - Prior experience building payment gateway technology, gateway routing engines, or processor-agnostic payment platforms from the ground up. - Knowledge of interchange optimization, BIN management, or acquiring economics. - Experience in regulated fintech environments and working alongside compliance, legal, and risk functions. Who You Are - You think in systems. You don't just write code — you architect infrastructure that others will build on top of for years. - You are deeply curious about the payments ecosystem and stay current with network rules, processor updates, and industry trends. - You are comfortable with ambiguity. Early-stage infrastructure work requires judgment calls; you make them thoughtfully and communicate them clearly. - You take ownership. When something is broken or underbuilt, you identify it and fix it — without needing to be asked. - You communicate with clarity. You can explain complex payment flows to non-technical stakeholders and write documentation that engineers actually use. - You care about correctness. In payments, bugs cost money. You build with the attention to detail that financial systems demand. Why This Role - Greenfield infrastructure opportunity: you will architect systems from scratch, not inherit a legacy codebase. - Direct impact on company trajectory: this role shapes the core technical foundation of a rapidly growing payments business. - Mission-aligned merchant focus: the platform serves businesses that traditional acquirers underserve — your work has tangible market impact. - Collaborative culture: a team of operators who value direct communication, authenticity, and getting things done. - Competitive compensation, equity participation, and a remote-friendly work environment.

Role Description A growing UK Managed Service Provider is currently seeking a professional and technically strong Out of Hours Engineer to join their remote support team based in South Africa. This role is focused on supporting managed service clients outside standard business hours. The successful candidate will assist with: - Technical support - Incident management - Microsoft 365 administration - Monitoring alerts - User access issues - Escalations and urgent support requests The role requires someone who is: - Professional and customer focused - Comfortable working independently - Calm under pressure - Technically capable - Strong with communication and documentation - Comfortable working evenings, weekends and public holidays on a rotational basis Working Hours - Early morning support shifts - Evening support shifts - Weekend and public holiday support - Rotational out-of-hours support Candidates must be fully comfortable with shift-based and after-hours work. Duties & Responsibilities - Provide remote technical support to managed service clients - Respond to incidents, outages and urgent support requests - Support Microsoft 365 users and systems - Handle password resets, MFA support and user access requests - Monitor backups, alerts and infrastructure notifications - Escalate critical incidents where required - Maintain accurate ticket updates and documentation - Work within company security and operational procedures Qualifications - Previous experience within an MSP, IT Service Desk or Technical Support environment - Microsoft 365 / Office 365 support experience - Active Directory or Microsoft Entra ID administration - Experience with ticketing systems and remote support tools - Basic networking knowledge including DNS, DHCP, VPN and TCP/IP - Strong communication and customer service skills - Stable fibre internet connection for remote work - Ability to work independently and manage incidents professionally Requirements - ITIL knowledge or certification - Microsoft Certifications (MS-900, AZ-900, SC-900 etc.) - Experience with security alerts, backups or monitoring systems - Firewall or endpoint security experience - Previous out-of-hours or on-call support experience