Top Senior Software Engineer Jobs in Washington, DC

Design, develop, and field high-performance Ground Control Station and C2 software using C++/Qt/QML and QGroundControl. Lead architecture and technical direction, mentor engineers, define APIs/ICDs, debug integration/latency issues, support field tests, implement post-mission debrief tools, and ensure interoperability with C2 standards.

Integrate autonomy software onto unmanned aircraft, prepare and validate flight-ready systems, support on-site flight tests, debug hardware/software interactions, capture and analyze flight data, collaborate with autonomy/GNC/systems teams, and support certification and compliance. Frequent travel (~30-40%) for field tests.

Lead design and delivery of backend and data-driven services: translate product requirements into technical designs, implement and deploy production cloud services, mentor engineers, review code, drive technical decisions, and own the technical excellence and roadmap for your team.

Develop, integrate, test, and maintain secure mission-focused applications in an Agile environment. Support feature delivery, defect resolution, APIs, CI/CD, source control, system integration, documentation, and collaboration with cross-functional teams to deliver software for federal law enforcement and national security missions.

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.

Designs, develops, and deploys AI-driven, cloud-native applications on Azure. Builds RAG knowledge systems, AI agents, secure APIs, and orchestrated workflows using C#, .NET, Azure services, Docker, and CI/CD. Collaborates with stakeholders, ensures observability and security, supports production incidents, and provides documentation and knowledge transfer.

Design, build, and support Salesforce solutions using Apex and Lightning Web Components. Configure and customize Salesforce, integrate third-party tools, follow development lifecycle and best practices, mentor junior developers, commit code to Git, and advise government healthcare clients on modernization and platform improvements while meeting vetting requirements.

As a Senior Software Engineer on Substrate, you will design and build managed Kubernetes product offerings, ensuring scale, security, and stability across various environments, while emphasizing automation and operational excellence.

In this role, you will drive infrastructure strategy, build APIs for network infrastructure, and improve Kubernetes networking and observability systems.

Design and implement microservices and data pipelines, develop backend services using Spring Boot, and maintain frontend features and legacy systems.

The Senior Full-Stack Software Engineer will design and develop software products, collaborate with data scientists, and instill development best practices.

This role involves architecting and building U.S. cloud infrastructure, managing tools, and improving developer productivity in compliance with defense standards.

The Senior QA Software Engineer ensures software quality through automated and manual testing, focusing on automation frameworks establishment and enhancing software quality standards.

The Full Stack Software Developer will design, develop, and maintain web applications, APIs, and utilize AWS for deployments. Responsibilities include coding, collaboration, testing, and documentation adhering to modern engineering practices.

Design and build scalable backend systems for a multi-tenant travel commerce platform. Orchestrate AI agents, implement guardrails and feedback loops, own end-to-end features, and collaborate with PMs and senior engineers to ship partner-facing products rapidly.

Join the AI team at Speechify to develop data collection processes, enhance cloud infrastructure, and collaborate on data strategies for next-gen models.

Build and operate a multi-account AWS developer platform using Terraform and Terraform Enterprise. Provision and manage EKS clusters, shared services (GitLab, Artifactory), CI/CD pipelines, and self-service automation. Support MLOps workloads, observability, and security compliance (CMMC, NIST, FIPS) while collaborating with product teams to enable scalable, secure infrastructure and developer tooling.

Develop and maintain Rust-based systems software for an autonomous drone platform. Design low-latency, high-reliability services across networking, protocols, embedded platforms, and AI/ML integration. Work with simulation environments and collaborate with ML engineers to enable autonomy features under constrained, real-world conditions.

Engineer software that connects AI-driven platforms to datacenter power infrastructure. Develop control strategies and optimize energy use and AI workloads.

The Software Engineer II will develop backend services and APIs while also contributing to frontend React components, focusing on digital services for federal clients.

As a Software Engineer in Frontier AI Infrastructure, you'll design secure systems for the public sector, improve engineering standards, and collaborate with cross-functional teams to meet government requirements. You'll also participate in customer engagements and contribute to the product strategy while ensuring compliance with federal regulations.

Design, develop, test, deploy, maintain, and enhance software solutions. Manage priorities and deliverables, participate in design reviews, perform code reviews, triage and debug issues, contribute documentation, and collaborate in cross-functional agile teams to build scalable web applications.

The Software Engineer will build scalable backend services, optimize performance, and mentor peers, focusing on distributed systems development.

The role involves building AI applications for government, architecting deployments, collaborating with research, and ensuring effective customer integration.

As a Software Engineer for the ARC team, you'll design and implement secure backend systems, manage model inference layers, improve engineering standards, and collaborate with teams to meet government agency needs.