Top Software Engineer Jobs in Washington, DC

The Software Engineer will build and operate ML model infrastructure, integrating AI models in various environments, ensuring security, reliability, and performance throughout the deployment process.

As a Software Engineer for Defense Applications, you'll enhance user-facing features, collaborate with teams, and design solutions in a fast-paced environment.

As a Forward Deployed Software Engineer, you will solve critical problems in federal health and civilian agencies, managing high-stakes projects with a strong focus on engineering principles and collaboration with customers.

Interns build software solutions and influence critical industries using AI, working closely with customers to solve complex problems.

The Software Engineer will develop high-performance software for distributed edge and cloud systems, process data streams, optimize software, collaborate with customers, and mentor peers.

Designs and delivers cloud-based software solutions with strategic customers and Microsoft product teams. Leads requirements definition, architecture, dependency identification, design documentation, and development of maintainable code. Mentors engineers, contributes to open-source assets, coordinates project and release plans, and serves as a designated responsible individual for system reliability, monitoring, on-call support, performance, and operational improvements.

Serve as the technical anchor for a cross-functional engineering squad building healthcare data platforms. Design and maintain Java Spring Boot, React, and Python data-processing applications; guide architecture, code quality, estimation, releases, integrations, and issue resolution. Build reliable data delivery pipelines, mentor peers, support Agile execution, and promote responsible AI-assisted development using tools such as GitHub Copilot.

Develop and maintain C# and ASP.NET applications while migrating from .NET Framework 4.8 to modern .NET versions and transitioning databases from SQL Anywhere to SQL Server. Build REST APIs, optimize queries and stored procedures, troubleshoot application and database issues, support CI/CD deployments, and collaborate with analysts, QA, and stakeholders in an Agile environment.

Build and maintain Python backend services, APIs, data pipelines, and internal applications while owning production deployment and support. Apply machine learning, statistical modeling, and scientific Python to forecasting and business analytics. Design data models, optimize queries, integrate enterprise systems, and deploy ML models. Collaborate with business stakeholders, document technical work, resolve production issues, and improve engineering processes and infrastructure.

Develop and maintain full-stack enterprise applications using Java, React, and PostgreSQL. Responsibilities include designing front-end and back-end components, integrating APIs, testing, code reviews, architecture participation, CI/CD, deployments, and application maintenance. The engineer will collaborate with product, business analysis, and testing teams in an agile environment while supporting accessibility and security compliance for an FBI system.

Designs, develops, and maintains C/C++ and Python software for radar and RF data acquisition, processing, analysis, automation, embedded systems, and testing. Integrates software with laboratory and field instrumentation across Linux and Windows, supports legacy codebases, develops documentation and test plans, and collaborates with engineering and program teams. The role supports classified lab, shipboard, and field test environments for Naval Research Laboratory electronic warfare programs.

The Principal Engineer will lead technical initiatives in AI-driven tax software, mentor engineers, enforce technical standards, and contribute to architectural design and product innovation.

Design and implement secure multi-cloud infrastructure and applications, supported by engineering principles and DevOps practices for the Air Force.

Leads development of Python-based mission-planning and scheduling systems for spacecraft operations. Designs optimization algorithms, high-performance APIs, distributed services, and reliable production workflows. Improves scalability, observability, and operational resilience while collaborating across software, flight dynamics, satellite operations, product, and program teams. Provides technical leadership, mentors engineers, and applies automation and AI-assisted development practices.

Design, deploy, operate, and scale GPU/CPU infrastructure for Starshield’s national security missions. Manage Kubernetes and AI clusters, bare-metal and virtualized GPU platforms, operating systems, databases, monitoring, and distributed storage. Develop infrastructure automation, improve service reliability and performance, collaborate with AI engineers and customers, and lead technical excellence while mentoring junior engineers.

Design, develop, and maintain automated testing frameworks and scripts for FEMA enterprise grants systems. Perform functional, regression, performance, API, integration, accessibility, and security testing. Integrate automated pipelines with DevSecOps environments, manage test data, analyze defects, define quality metrics, and collaborate with developers, analysts, and product owners in Agile teams. Mentor junior testers and promote quality-focused engineering practices.

Lead the architecture and development of secure, scalable microservices and software components. Build CI/CD automation, automated testing strategies, and performance monitoring solutions. Provide technical leadership in privacy, security, cryptography, and distributed systems while collaborating across teams and communicating complex technical concepts. Drive continuous improvement and integrate Web3 and privacy-preserving technologies into innovative products.

Build responsive Web3 applications, web SDKs, developer tools, reusable frontend components, and internal Customer Success tools. Collaborate with Product, Design, and Engineering to create scalable, accessible user experiences. Contribute to code and design reviews, automated testing, continuous delivery, coding standards, and AI-assisted development practices.

As a Mission Software Engineer, you'll develop solutions for government customers by integrating software into existing workflows, requiring significant travel, collaboration, and technical expertise.

Participate in a Pega bootcamp, then design, develop, customize, configure, and integrate Pega applications for government clients. Troubleshoot application issues, follow coding standards, and collaborate with business stakeholders. The role is primarily onsite in downtown Washington, DC, four to five days per week, and requires U.S. citizenship and a Top Secret security clearance.

Work on customer-facing, high-impact projects as an intern FDSE: design and implement data-driven solutions, wrangle large-scale data, build web apps, discuss architecture, and own end-to-end execution while collaborating with technical and non-technical stakeholders. May require travel and US government background checks.

Work directly with customers to design and build end-to-end data-driven solutions. Responsibilities include architecture, large-scale data wrangling, custom web app development, collaborating with technical and non-technical stakeholders, and traveling to client sites to deploy and iterate on high-impact projects.

Work onsite with customers to design and build data-driven solutions end-to-end. Responsibilities include architecture, data wrangling at scale, coding web apps, collaborating with technical and non-technical stakeholders, and traveling to client sites to deploy and iterate solutions.

Work directly with defense customers to design, build, and deploy data-driven solutions. Tasks include architecture, large-scale data wrangling, coding custom web apps, collaborating with technical and non-technical teams, and owning end-to-end, client-facing projects. Internship involves on-site client work and potential travel.

Develop and deploy autonomy software for unmanned surface, underwater, and aerial vehicles in maritime missions. Responsibilities include motion planning, localization and tracking, safety assurance, COLREGS adherence, multi-agent coordination, distributed optimization, rigorous software testing, platform integration, deployment support, mission-log analysis, and autonomy R&D. The role also involves cross-functional collaboration, customer and demonstration support, roadmap development, and mentoring junior engineers. Travel is typically approximately 25% annually.