Top Senior Linux Jobs in Washington, DC

Maintains and troubleshoots server, storage, networking, cabling, and power hardware across a large-scale production data center fleet. Writes Python automation scripts, reviews logs and alerts, performs diagnostics, supports deployments, builds hardware health dashboards, coordinates with DevOps, supply chain, and vendors, and assists with hardware evaluation and reliability improvements. Requires on-call availability and travel to data center sites.

Develops C++ and Python simulation plugins, adapters, and interfaces for defense modeling and simulation environments. Leads migration from HMSSimBlocks to HMSF, maintains legacy compatibility, builds reusable CIGI integrations, supports DDS and network communications, and troubleshoots simulation-autonomy integration issues. The role also includes designing extensible architectures, writing automated tests, documenting software, and supporting integration teams.

Integrate and verify autonomy software on aircraft hardware across SIL, HIL, ground, and flight-test environments. Develop test plans, test cards, schedules, and automation; identify and resolve interface, timing, protocol, and hardware/software integration gaps. Coordinate with aircraft vendors, configure test benches, troubleshoot anomalies, assess flight readiness, and analyze post-flight data. The role requires Linux and Python proficiency, cross-functional coordination, periodic travel, and eligibility for a U.S. DoD SECRET clearance.

Designs, configures, tests, and sustains complex networks for hardware-in-the-loop laboratories, simulations, and aerospace defense programs. Develops network automation, configuration-as-code, observability, and CI/CD tooling; integrates hardware, radios, sensors, flight computers, and simulators; executes performance and interoperability testing; troubleshoots distributed systems; maintains network documentation and baselines; and supports customer demonstrations and operational evaluations.

Deploys, integrates, configures, troubleshoots, and supports airborne vision and detection systems across laboratory, production, customer, and field environments. Performs hardware and software integration, wiring and electro-mechanical work, system testing, configuration management, documentation, customer training, and field-service logistics. Coordinates with engineering, production, quality, program, and customer teams while supporting deployments and demonstrations. Requires approximately 50% travel and ability to obtain a Secret clearance.

Owns daily operations, readiness, and growth of Hardware-in-the-Loop and engineering laboratories. Builds, configures, maintains, and troubleshoots racks, test benches, compute systems, networking, wiring, flight hardware, and simulation infrastructure. Manages assets, calibration, schedules, procurement, documentation, safety, cybersecurity, and configuration control. Supports software development, integration testing, customer demonstrations, and operational evaluations while coordinating technical lab needs across engineering and program teams.

Founding infrastructure engineer responsible for designing, deploying, securing, and operating an Azure Government environment for a FedRAMP-authorized federal offering. The role owns Terraform infrastructure as code, deployment pipelines, Kubernetes, security integrations, encryption infrastructure, compliance evidence, operational runbooks, patching, scanning, recovery testing, assessor engagement, and on-call operations.

Design, operate, and scale SailPoint’s AWS-based Kubernetes infrastructure and service mesh for a global, mission-critical SaaS platform. Responsibilities include cluster architecture, networking, security, GitOps, CI/CD, observability, capacity planning, incident response, compliance, and platform standards. The role influences engineering teams globally, participates in 24x7 on-call support, leads service mesh strategy, and improves reliability, performance, deployment efficiency, and operational practices.

Senior Software Engineer responsible for designing, developing, testing, and releasing scalable full-stack features for Huntress’s Core Platform. The role owns complex projects end to end across frontend, backend, databases, and infrastructure; promotes code quality through testing, reviews, and pairing; breaks down epics into milestones; contributes technical solutions; and mentors engineers. The position requires extensive Ruby on Rails and full-stack experience, plus familiarity with Linux infrastructure, databases, external APIs, Agile practices, and responsible AI-assisted development.

Build and lead GM’s Core OS engineering organization for vehicle compute platforms. Define the team charter, hire engineers, establish architecture, and deliver production software supporting hypervisors, virtualization, containers, secure boot, safety monitoring, and Linux, Android, and QNX guest operating systems. Own roadmaps, KPIs, cross-functional integration, vendor partnerships, risk management, and vehicle-program milestones while ensuring scalable, reliable, and updateable platform software.

Designs, implements, and manages AWS infrastructure and Infrastructure as Code automation. Partners with application engineering, quality, security, and compliance teams to deliver reliable platform solutions. Owns platform stability, observability, incident response, security best practices, and zero-downtime deployments. Participates in on-call rotations, uses metrics for decision-making, and supports application architecture decisions while continuously improving DevOps processes and automation.

Develop and maintain scalable Java and Spring Boot REST services, APIs, and microservices for mission-critical geospatial systems. Support containerization, orchestration, CI/CD, DevOps automation, testing, infrastructure deployment, data platforms, and third-party integrations. Contribute to architecture, performance optimization, troubleshooting, documentation, stakeholder demos, and Agile delivery. The role requires onsite work in Herndon, Virginia and collaboration on national security missions.

Lead the technical direction and architecture of the Foundations platform team, owning authentication, authorization, SSO, secrets management, tenancy, and core platform services. Design APIs, drive services through launch, make technical decisions, establish engineering standards, and mentor engineers without formal management authority. Partner with engineering and product leaders to align execution with priorities.

Designs and operates scalable platform infrastructure across cloud, on-premise, and hybrid environments. Builds infrastructure-as-code frameworks, CI/CD pipelines, developer tooling, automation, observability, and secure deployment patterns. Partners with engineering, security, and infrastructure teams to improve reliability, resilience, compliance, and developer productivity across mission-critical systems.

Design, build, and operate Cloudflare’s globally distributed cache and reverse-proxy data plane. Responsibilities include improving Pingora-based asynchronous systems, cache performance and correctness, purge and Tiered Cache services, APIs, observability, reliability, and production operations. The role owns features end to end, including design, implementation, testing, staged rollouts, incident response, and cross-team collaboration.

Leads a DevOps engineering team while designing and maintaining CI/CD pipelines, cloud infrastructure, monitoring, security controls, infrastructure as code, containerized microservices, and disaster recovery processes. The role focuses on improving developer efficiency, system reliability, scalability, performance, and cost-effectiveness. Responsibilities include incident troubleshooting, root-cause analysis, stakeholder communication, cross-functional collaboration, and participation in on-call support.

Administer and troubleshoot Linux systems in a large-scale, onsite environment. Support virtualized environments, containers, automation, configuration management, CI/CD, disaster recovery, performance tuning, and production-ready customer solutions. Diagnose operating system, storage, boot, service, security, backup, software installation, and performance issues while maintaining strong customer-facing communication. The role requires a bachelor's degree, five or more years of experience, and the ability to obtain a TS/SCI clearance.

The Senior Site Reliability Engineer ensures SaaS platforms remain reliable, performant, secure, and scalable. Responsibilities include building cloud infrastructure, implementing monitoring and alerting, automating operational runbooks and deployments, managing Infrastructure as Code, applying AI-powered observability and remediation, supporting Kubernetes and cloud networking, and leading incident triage and root-cause analysis during 24/7 on-call rotations.

Build, monitor, and scale resilient cloud infrastructure across multi-region and multi-cloud environments. Develop Kubernetes controllers and infrastructure tools using Go, Python, Ruby, and Terraform; maintain Datadog observability; diagnose complex production performance and reliability issues; automate failover and capacity management; and collaborate with engineering teams on architecture and infrastructure improvements.

Design and maintain C++ and Python software for complex cross-platform systems. Develop APIs, messaging interfaces, CI/CD workflows, and automated tests while integrating distributed real-time systems, simulation tools, and third-party hardware and software. Debug system-level issues involving threading, timing, and data flow, contribute to architecture, and collaborate across teams. The role requires active Secret clearance and supports potential progression to TS/SCI clearance.

Design, build, and deploy web and database solutions using HTML, JavaScript, and Python within a healthcare context. Implement CI/CD and containerized deployments (OpenShift/Docker), integrate Red Hat Fuse ESB and Apache Camel, and architect AWS-based solutions (EC2, S3, Lambda, DynamoDB). Work in Agile teams, create/consume REST APIs, apply web security practices, and use tools like Jenkins/GitLab, GitHub, SonarQube, and Ansible.

Design, deploy, operate, and scale GPU/CPU infrastructure for Starshield’s national security missions. Manage Kubernetes and AI clusters, bare-metal and virtualized GPU platforms, operating systems, databases, monitoring, and distributed storage. Develop infrastructure automation, improve service reliability and performance, collaborate with AI engineers and customers, and lead technical excellence while mentoring junior engineers.

Maintains and supports complex server, network, storage, virtualization, VoIP, remote-access, and F5 load-balancing infrastructure. Troubleshoots incidents, builds and configures physical and virtual servers, supports Windows and VMware production environments, writes operational scripts, manages WAN/LAN/MAN connectivity, analyzes performance and risks, and develops system documentation. Requires extensive networking and systems experience, strong analytical skills, relevant certifications, a bachelor's degree, and an active Top Secret clearance.

Administer Linux servers and services across production and non-production environments. Responsibilities include system hardening, monitoring, patching, troubleshooting, scripting, infrastructure and configuration as code, CI/CD pipeline support, network issue resolution, and maintaining technical documentation. The role requires an active Top Secret clearance, SCI eligibility, U.S. citizenship, onsite work in Washington, DC, and DoD 8140 IAT II compliance.

Administers, supports, troubleshoots, upgrades, and migrates on-premises and cloud SharePoint and document management environments. Responsibilities include SharePoint development, workflows, Power Platform conversions, server and database integration, records management, application testing, data backup, maintenance, user support, training, and designing cloud migration strategies and site templates.