Top Senior Linux Jobs in Washington, DC

Provide application-level production support and operations for enterprise middleware and integration services (IBM webMethods and Java-based BRE/BRMG). Troubleshoot production incidents, perform RCA, manage releases, validate failover/fallback, handle certificates/credentials, update runbooks, and maintain 24x7 operational readiness. Work with REST/SOAP APIs, microservices, OpenShift/Kubernetes, monitoring tools (AppDynamics, ELK), and ServiceNow for incident management.

Design, deploy, manage, and troubleshoot high-performance InfiniBand and Ethernet networks for HPC. Perform performance tuning, capacity planning, and monitoring. Implement Fortinet security, resolve routing/switching/latency issues, collaborate with compute and storage teams, document architectures, and participate in on-call escalation and upgrades.

Build and maintain cloud infrastructure and observability for scalable systems. Monitor, troubleshoot, patch, and automate operations using IaC, CI/CD, Kubernetes, and AI-driven automation. Manage backups, disaster recovery, log pipelines, databases, and message streaming. Collaborate with engineering, security, and business teams to improve reliability, incident response, and infrastructure lifecycle (including Terraform state cleanup and decommissioning).

Design, develop, and review software as part of an Agile scrum team. Collaborate with architects, QA, analysts, and customers to build large-scale hosted applications, contribute to security and risk assessments, resolve operational issues, and participate in on-call support and deployments.

Deploy, maintain, and automate application infrastructure on GCP using Kubernetes, Docker, Helm, ArgoCD, and Terraform. Build automation pipelines, support and troubleshoot in-house and third-party apps, document processes, and participate in on-call rotation.

Develop and maintain embedded firmware and kernel/user-mode device drivers for Ethernet-based networking devices. Design, implement, test, and integrate drivers into a Linux and AUTOSAR communication stack, build SDK components, and create debug/test utilities and automated unit/system tests for safety-critical automotive applications.

Senior frontend developer responsible for building and maintaining Angular 16+ UI in large distributed environments. Work includes HTML5/CSS3/TypeScript development, WebComponents, automated testing, CI/CD with Docker, Git workflows, cross-browser optimization, and collaborating on integrations with Java/Spring Boot REST services. Agile team collaboration and problem-solving required; banking domain experience preferred.

Lead 24x7 application support for external web applications: manage incidents, perform RCA, implement preventative fixes, build monitoring/alerts, expand Splunk functionality, create dashboards, collaborate with development and platform teams, and participate in on-call rotation.

Provide senior SRE expertise to improve reliability, scalability, performance, and resilience of a cloud-hosted geospatial platform. Design monitoring/observability, automate deployments, support incident response, optimize capacity and performance, and collaborate across DevSecOps, Kubernetes, database, and support teams in a mission-focused DoD environment.

The Senior IT Systems Engineer will design, implement, and maintain IT systems, ensuring reliability and performance, while providing technical leadership and guidance.

As a Staff Wireless Software Engineer, you will develop and architect wireless protocol stacks, optimize performance, and lead design implementations for real-time communication systems, collaborating closely with hardware and firmware teams.

Build and maintain platform systems that provision, secure, and observe isolated agent execution environments. Design reusable primitives for queues, jobs, locks, and service-bus mechanics. Extend Pulumi-based IaC, work with containers, Linux internals, storage, permissions, logging, and runtime debugging. Ship reliable, maintainable infrastructure-driven application code and collaborate in a small cross-functional team.

Participate in full SDLC building and integrating software for DoD customers. Develop C++/Python systems, curate synthetic geospatial raster data, apply TDD, operate in DevSecOps pipelines, and use containerization and CI/CD for deployment and testing.

Lead the engineering team, manage feature delivery, mentor team members, and maintain TimeZest's infrastructure, focusing on customer satisfaction.

Administer and maintain IRIS for Health integration platforms on AWS EC2 and Linux, manage network security and PaloAlto VPNs, build CI/CD with CodeFresh/GitLab, integrate and troubleshoot EHR interfaces (Epic, Cerner, Allscripts), automate provisioning with scripting (Python, ObjectScript, Bash, JavaScript), implement infrastructure automation, monitor systems, participate in on-call support, and optimize performance and reliability.

Lead cloud mobile core platform operations: configure and manage core network elements (HLR/HSS, SGSN, GGSN/PGW, SMSC, SBC, STP, DRA), troubleshoot with Wireshark, run security audits, implement interconnects, build dashboards, handle incidents and on-call duties, and collaborate with providers and internal teams.

Design, implement, and operate secure, scalable multi-cloud infrastructure (Azure/AWS) with IaC (Terraform), managed Kubernetes, containers, and AI platform support. Lead complex projects, define operational processes, ensure security/compliance, mentor teammates, and maintain observability for production systems.

Lead design, implementation, and operation of production-quality DevOps platforms and automated test infrastructure for heterogeneous edge hardware. Improve CI/CD, build/release, deployment automation, developer tooling, and platform reliability. Enable reproducible tests, diagnose failures across devices, partner with engineering and QA, and drive major infrastructure initiatives from ambiguity to production.

Manage and automate infrastructure for on-prem and cloud deployments using infrastructure-as-code. Build, deploy, and operate services (containers, orchestration, fleet management), improve observability and availability, support security practices, and collaborate with cross-functional teams to scale and operationalize ML and web applications.

Design, implement, and manage Ansible-based automation (playbooks, roles, Tower) for configuration management, software deployment, security compliance, troubleshooting, documentation, and training. Collaborate with sysadmins and developers, support production systems, participate in on-call rotation, and travel to data centers as needed.

Design and develop Presidio's internal Managed Services platform and automations. Provide technical guidance and mentoring, identify automation opportunities, perform proofs of concept and pilots, collaborate on production security improvements, author technical documentation, and engage with stakeholders to capture requirements and operationalize solutions.

Design, build, and own disposable isolated microVM sandboxes and related runtime infrastructure for AI coding agents. Improve reliability, performance, and security across macOS, Windows, and Linux; lead architecture, mentor engineers, engage open-source communities, participate in on-call rotations, and collaborate with Product and adjacent teams.

Deploys, supports, and improves Managed Services Gateways across cloud and virtualization platforms. Administers Linux, Kubernetes (Rancher), VMware/Hyper-V, networking and firewalls; automates workflows; triages escalations; documents runbooks; coordinates with clients and teams; participates in on-call and lifecycle/security initiatives.

Own day-to-day AWS and database operations for a serverless production platform, manage backups and disaster recovery, monitor and debug production, lead incident response and on-call, maintain infrastructure-as-code (SST/Pulumi), optimize costs, and mentor the team on operational best practices.

As a Senior Software Engineer, you'll design and build scalable market data systems, improve API architecture, and enhance overall system performance, contributing to Alpaca's infrastructure for trading financial assets.