Top Senior Linux Jobs in Washington, DC

The System Administrator provides technical expertise for system installation, support, and maintenance, ensuring compliance and availability for users while coordinating with government for maintenance activities and upgrades.

Manage, configure, and maintain enterprise network and connectivity systems. Monitor infrastructure using WhatsUp Gold, Nagios, and ServiceNow; troubleshoot servers, storage, routers, switches, firewalls, and VPNs. Support Windows Server, on-prem storage, AWS/Azure connectivity, and VMware environments. Build and implement network infrastructure, write scripts for monitoring, manage incidents, and maintain network documentation to meet SLAs.

Senior individual contributor owning design, implementation, and operation of infrastructure systems. Drive technical direction, write RFCs, lead on-call escalations and post-incident reviews, mentor engineers, eliminate systemic toil, and partner with security, compliance, product, and ops to deliver scalable, deployable ground-station infrastructure.

Provision and deploy network devices, servers, and infrastructure for global POPs using automation (Ansible, Chef, Git). Troubleshoot provisioning issues, collaborate with hardware and operations teams, improve standards and tooling, and support post-deployment validation and handoff to Network Operations.

Administer and scale enterprise Jira, Confluence, JSM, and Crowd across multi-enclave environments. Triage support tickets, improve workflows, manage marketplace apps, and oversee identity/SSO integrations. Run platform operations (upgrades, patches, backups, monitoring), support ATO/FISMA compliance and audits, and collaborate with mission, security, and IT teams. Onsite in Washington, DC; requires active TS/SCI clearance and U.S. citizenship.

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.

The Senior Infrastructure Engineer will manage and scale LiveKit's core infrastructure, focusing on reliability and performance, while working on Golang code and automation for distributed systems.

Design, implement, and manage LiveKit's infrastructure, focusing on performance, reliability, and automation while ensuring effective incident management and coordination with vendors.

The Software Engineer will manage data collection for AI model training, optimize cloud infrastructure on GCP, and collaborate with scientists to enhance datasets.

Develop and deploy automated system tests for distributed software environments. Collaborate with developers and QA teams, create test plans, verify requirements and coverage, troubleshoot features, improve testing methodologies, and solve large-scale automation and verification problems using software development and related internet technologies.

Develop and maintain microservices-based, real-time software for mission-critical air traffic systems. Collaborate with product, systems engineering, QA, DevOps, and platform teams in an Agile/SAFe environment. Translate requirements into reliable solutions, integrate APIs, databases, messaging systems, and external services, and contribute to design and technical decisions. Apply CI/CD, DevSecOps, automated testing, troubleshooting, performance tuning, and AI-assisted development tools. The role is fully remote and requires Public Trust eligibility and U.S. citizenship.

Lead architecture and roadmap for Azure PostgreSQL systems; design and review scalable, maintainable database engine features (query processing, storage, transaction logging, recovery, versioning, IO, scale-out). Influence coding standards and run code reviews, write proof-of-concept or production code, contribute to open-source PostgreSQL/Linux, and participate in rotational on-call operations.

The role focuses on developing and maintaining continuous integration systems for NVIDIA's AI software ecosystem, ensuring optimal performance and quality of software stacks.

Design and implement scalable full-stack solutions using .NET and React. Lead architecture, cloud migration (AWS/Azure), microservices, and API development. Mentor developers, perform code reviews, resolve production issues, manage client interactions, and drive delivery with a focus on performance, security, and multi-tenant SQL Server architectures.

Designs and operates IT services for laboratory environments, including networks, compute, security, private cloud, and SDN platforms. Translates business and IT requirements into secure, standardized architectures and operational processes. Leads deployments, design reviews, documentation, incident gap analysis, automation, and infrastructure optimization. Requires extensive enterprise networking, datacenter, virtualization, Linux, security, and ITIL experience.

Designs and operates laboratory IT services covering compute, networks, security, private and public cloud, and software-defined networking. Translates business requirements into secure, high-performance service offerings; defines architectures, configurations, processes, and operational procedures. Leads implementations, design reviews, documentation, incident analysis, gap remediation, automation, and infrastructure optimization across global laboratory environments.

Develop and lead automated testing for software features and major releases on Agile teams. Design object-oriented automation frameworks, automate tests using Python or similar languages, perform white-box, black-box, functional, and performance testing, investigate defects, manage test lab environments, estimate testing efforts, mentor engineers, and report testing status.

The Senior ATE Wafer Test Engineer will manage projects with vendors, perform yield analysis, conduct wafer testing, and ensure compliance with manufacturing standards.

Build and design proxy infrastructure from scratch, implement rotation systems, manage IP reputation, optimize for performance, and develop reverse proxy systems for various proxy types.

Lead Software Engineer responsible for designing, developing, testing, and maintaining a distributed processing application using Python and Java. Collaborate with product owners, data coaches, analysts, DBAs, and Agile teams to meet backend/frontend requirements, implement cloud and big-data solutions (Spark/Hadoop), and ensure program standards and reliable delivery.

The role involves managing Oracle OCI services, optimizing EBS performance, developing dashboards, and ensuring compliance within an OCI environment.

Administer and support Oracle E-Business Suite on OCI, including installation, configuration, patching, and performance tuning while ensuring compliance with security requirements.

The Senior Software Engineer will enhance patient experiences by developing modern software for doctor's offices, contributing to product features, and participating in client feedback.

The Staff Software Engineer will upgrade patient experience by developing features for a healthcare software platform, leading the product development throughout the process.

The Senior Site Reliability / Gitops Engineer will drive automation and collaboration within the IS team, enhancing Canonical's IT operations and services while managing infrastructure as code and cloud technologies.