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.

Design, develop, configure, test, integrate, document, and sustain MuleSoft API and integration capabilities. Build reusable API-led services, DataWeave transformations, secure connectivity, runtime policies, and CI/CD automation. Translate stakeholder and government requirements into maintainable solutions, troubleshoot complex platform and integration issues, support architecture and releases, and collaborate with cybersecurity, QA, infrastructure, operations, and business teams. Maintain technical documentation, test evidence, operational runbooks, and platform governance practices.

Build and launch AI agents for credit unions by developing banking and loan-system integrations, authoring agent behavior, running evaluations and live tests, managing go-lives, and supporting early production. Own technical implementation outcomes, collaborate directly with customers, travel approximately 20%, and contribute reusable capabilities and implementation playbooks to the Agents Platform.

Modernize an existing C++ desktop application by migrating functionality to a web-based .NET solution. Design, develop, test, deploy, maintain, and support software using C++, C#, ASP.NET Core, APIs, and modern web technologies. Collaborate with product, QA, and business stakeholders, perform code reviews and debugging, resolve performance issues, and evaluate AI capabilities for application and workflow integration while ensuring security, testing, monitoring, and validation.

Own the architecture and engineering of LiveKit’s go-to-market systems, including Salesforce, HubSpot, integrations, enrichment pipelines, data flows, and agentic workflows. Lead build-versus-buy decisions, vendor evaluations, roadmap planning, observability, change management, and CPQ-to-billing automation. Partner with Sales, Marketing, Finance, RevOps, Legal, IT, and Engineering while mentoring engineers and establishing technical standards for reliable, scalable GTM infrastructure.

Own the architecture and engineering of LiveKit’s go-to-market systems, including Salesforce, HubSpot, integrations, data flows, observability, change management, and AI agentic workflows. Lead build-versus-buy decisions, vendor evaluations, roadmap planning, and cross-functional initiatives spanning Sales, Marketing, Finance, RevOps, and Engineering. Mentor engineers, establish technical standards, maintain reliable CRM synchronization, and support CPQ-to-billing automation.

Develop and deploy scalable full-stack healthcare applications using Go, TypeScript, Angular, and AWS. Responsibilities include technical design, coding, automated unit/integration/end-to-end testing, code reviews, troubleshooting, agile ceremonies, mentorship, architecture improvements, and occasional on-call support. The role contributes technical leadership across frontend and backend systems while collaborating with Scrum teams and cross-functional partners.

Design and scale asynchronous Python backend systems, including REST/WebSocket APIs, multi-agent LLM workflows, provider-agnostic integrations, and RAG pipelines. Own relational data models, observability, performance, CI/CD, and production deployment. Establish AI governance covering code review, provenance, licensing, security, compliance, and customer data handling. Drive ideas from concept through production while owning architecture and outcomes.

Develops, enhances, tests, and maintains enterprise Java applications and RESTful web services. Responsibilities include modernizing legacy systems, building Java EE/JEE applications, implementing authentication and authorization, optimizing PostgreSQL databases, supporting AWS environments and CI/CD pipelines, applying security and accessibility standards, and translating business requirements into application features. Collaborates with technical teams and stakeholders in a remote work environment.

Design, build, and implement Dynamics 365 solutions in a cloud/microservice environment. Develop C#/.NET plugins, APIs, and Azure Functions; participate in requirements analysis, code reviews, testing, deployment, and SDLC documentation. Collaborate with Agile teams, interface with clients, mentor junior developers, and support VA federal projects.