Top Software Engineer Jobs in Washington, DC

As a Software Engineer on the Mission Dev team, you will deploy software in federal environments, manage integrations, and support mission-critical programs for government agencies.

Lead design and delivery of secure native iOS and Android apps. Architect security- and privacy-focused features, integrate backend microservices, optimize performance, mentor peers, and uphold best practices in testing and deployment.

Lead end-to-end engineering projects building Node.js backends and React frontends, scale core APIs to millions of requests, debug using monitoring/logging, participate in code reviews and hiring, and collaborate on product roadmap driven by customer needs.

Develop and enhance software solutions by analyzing user needs and applying computer science, engineering, and mathematical principles. Collaborate with project management, acquisition, logistics, and security teams to integrate hardware and software, develop specifications, and establish performance requirements. Maintain application databases and support Naval Sea Systems Command programs. The role is primarily onsite at Washington Navy Yard, with infrequent travel to naval locations on the East and West Coasts.

Develops and enhances computer and network software for Naval Sea Systems Command programs. Responsibilities include analyzing user needs, designing software solutions, integrating hardware and software systems, developing specifications and performance requirements, and maintaining application databases. The role supports program management and requires extensive experience with naval surface radar, electronic warfare, EO/IR, decoy, or laser software systems. Work is primarily on-site at Washington Navy Yard, with infrequent travel to naval locations.

Supports Naval Sea Systems Command by analyzing user needs, designing and enhancing software, maintaining application databases, integrating hardware and software systems, and developing technical specifications. Collaborates across engineering, acquisition, logistics, security, and program-management disciplines. Applies systems engineering reviews, requirements decomposition, technology-readiness measures, program protection, and risk-management processes. The role is primarily on-site at Washington Navy Yard with infrequent travel to naval locations.

As a Backend Engineer, you'll design and implement secure APIs, build cloud-native products, optimize databases, and collaborate on enterprise security integration.

Develop backend Command & Control (C2) systems connecting Quindar's platform to satellites. Implement machine-to-machine communication, binary protocols, serialization, transport, stateful comms, telemetry, and hardware integrations. Onboard diverse spacecraft, translate interfaces into maintainable integrations, build scalable abstractions and tooling, and improve reliability, observability, and performance while collaborating cross-functionally.

As a Senior Software Engineer, you will enhance user experience for maritime tech, develop a real-time data platform, and oversee large engineering projects.

Lead design and implementation of cloud-based backend systems for global antenna scheduling, customer-facing APIs, billing/metering, and orchestration. Build reliable, scalable control and data planes across cloud and on-prem, collaborate with customers and operations, and enable secure TT&C and payload data transfer.

Serve as the sole QA resource in a classified environment to validate and certify platform releases. Design and execute end-to-end/system test plans and automation, maintain test configurations and lab environments, partner with development and release teams, review changes in test/staging, and ensure critical customer workflows remain functional for weekly releases.

Lead and manage an API engineering team owning core services for Fundrise investor applications. Set technical direction, coach engineers, drive architecture, ensure production quality, security, monitoring, and coordinate cross-team delivery.

Design, build, and operate Peregrine's cloud platform to improve performance, reliability, security, and cost-efficiency. Own infrastructure projects end-to-end, automate region/environment provisioning, implement autoscaling and right-sizing, harden security and compliance controls, improve incident response, and create developer-facing tooling and documentation. Mentor junior engineers and influence cross-team technical decisions.

Lead design and implementation of compliance and multi-region deployments, build IaC (Terraform/Atmos) for AWS/GovCloud, develop full-stack features (TypeScript/React Native), establish shift-left tooling, ensure architectural consistency across regulated and commercial environments, drive cross-team technical initiatives, troubleshoot distributed systems, and produce documentation and audit-ready standards.

Design, build, and maintain cloud-native full-stack applications and backend services that support investment risk analysis. Own end-to-end delivery, contribute to architecture, apply automated testing and CI/CD, collaborate with stakeholders, reduce technical debt, and ensure reliable, observable data and analytics for portfolio risk and simulations.

Lead design, development, and management of software and database applications supporting USAF wargaming. Provide systems engineering, supervise developers and IT staff, manage LAN and ISSM/ISSO functions, advise leadership, and improve wargame infrastructure and post-game analysis.

Build and own user-facing product experiences (Search, Dossier, Maps, Dashboards, etc.), collaborate with design and product, ship fast, reliable full‑stack features, integrate AI/semantic discovery, optimize latency and resilience, and iterate with deployment and users.

As a Senior Software Engineer, you'll design architecture, mentor engineers, and drive the adoption of AI practices to enhance development workflows and system reliability.

As a Missions Software Engineer, you'll collaborate with defense customers to integrate and operationalize vehicle intelligence products, tackling software engineering, hardware integration, and project execution challenges.

As a Lead Software Engineer, you will integrate Applied Intuition's vehicle intelligence products with defense and government customers, overseeing technical execution for complex systems.

As a Senior Software Engineer, you will lead the development of scalable backend systems, manage feature development lifecycles, and engage with stakeholders to translate mission needs into technical requirements while ensuring implementation meets criteria.

The Staff Software Engineer will lead implementations, mentor engineers, define technical strategies, and communicate with stakeholders while enhancing federal engineering capabilities.

Senior software developer supporting IRS mission-critical Java/middleware applications. Duties include production support, troubleshooting application and integration issues, incident response, release support/validation, enterprise API and microservices development, middleware (IBM webMethods), container orchestration (OpenShift/Kubernetes), application modernization, and Agile/DevSecOps collaboration. Occasional onsite support for meetings, deployments, or knowledge transfer is required.

Senior software developer responsible for implementing application-layer currency and supportability updates for middleware and microservices — including JDK/runtime upgrades, dependency remediation, certificate and credential updates, OpenShift/Linux compatibility, CI/CD and developer validation, rollback planning, and technical documentation.

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.