Top Software Engineer Jobs in Washington, DC

Build and enhance cloud-based applications for mission-critical workloads. Responsibilities include designing, coding, testing, debugging, integrating, and deploying application modules; developing CI/CD pipelines; applying cloud-native, DevOps, security, scalability, and performance practices; and collaborating with project managers and development partners to deliver, monitor, and support cloud services.

Build and deploy data-driven software solutions directly with customers. Responsibilities include understanding complex operational problems, designing architectures, wrangling large-scale data, coding custom web applications, collaborating with technical and non-technical teams, engaging customer executives, and owning high-stakes projects end to end with minimal supervision.

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.

Leads the development and deployment of data solutions using Palantir Foundry and AIP. Manages engineering teams, coaches team members, oversees project planning and execution, analyzes system interactions, manages client relationships, and drives innovation. The role applies software engineering, data engineering, analytics, and AI/ML techniques to deliver scalable client solutions while maintaining technical and professional standards.

Leads the development and deployment of software and data solutions using Palantir Foundry and AI/ML technologies. Responsibilities include data engineering, analytics, system improvement, client account management, project ownership, team leadership, coaching, stakeholder engagement, and continuous improvement. The role requires building scalable applications with large datasets and delivering customer-focused solutions.

Build and ship full-stack platform features, including AI-powered intake, case routing, constituent assistants, and agency dashboards. Own scoping, architecture, implementation, iteration, reliability, performance, and code quality. Engage directly with federal stakeholders to translate complex requirements into usable products. Work extensively with React, Next.js, Node.js, TypeScript, PostgreSQL, and AI coding tools in a fast-paced hybrid environment.

Build and maintain full-stack, backend-leaning financial technology applications using JavaScript, React, Node.js, and MongoDB. Own projects end to end, investigate and resolve production issues, participate in code reviews and interviews, and collaborate on the product roadmap. The role emphasizes scalable production systems, customer-focused development, clear communication, and balancing rapid delivery with technical quality.

Build complex, data-intensive web applications for technical and non-technical users. Responsibilities include frontend design and development, prototyping, feature ownership, API and data-schema development with backend engineers, collaborative map-based workflows, user research, and performance optimization. The role covers the full product lifecycle from ideation through maintenance and requires strong communication, independent delivery, and experience with complex frontend applications.

Develop and maintain front-end and back-end components for the FBI FDP system using Java, React, and PostgreSQL. Responsibilities include requirements analysis, testing, QA, code reviews, architecture participation, code integration, CI/CD, deployments, version control, and operations optimization. The engineer will collaborate with product, business analysis, and testing teams within an agile development environment to deliver enterprise application features through the full software development lifecycle.

Design, develop, test, secure, and maintain enterprise applications and APIs using C# and modern .NET. Build database solutions, RESTful integrations, automated tests, and CI/CD pipelines while supporting Agile and DevSecOps delivery. Modernize legacy applications, troubleshoot production issues, conduct code and design reviews, and remediate security findings. The role requires an active DoD Secret clearance and U.S. citizenship and is remote within the United States during Pacific Standard Time hours.

Develop, test, debug, enhance, and document software applications. Integrate designs, specifications, schedules, and user needs into product capabilities; resolve hardware and software interface issues; research emerging technologies; troubleshoot application problems; support customers; and prepare technical reports. The role is onsite in Washington, DC and requires an active Top Secret clearance with SCI eligibility.

Develop and scale Protagonist’s Narrative Analytics platform using Python, React, and AWS. Build backend services, APIs, frontend functionality, microservices, infrastructure, and data-processing pipelines supporting NLP and search. Collaborate with data scientists and engineers to productionize research prototypes, participate in code reviews and Agile planning, and contribute to architectural discussions. The role is hybrid in Washington, DC and requires eligibility for a U.S. Government security clearance.

Build frontend and backend features, data integrations, and AI workflows for legal casework. Collaborate directly with lawyers and legal engineers to understand needs, ship dependable software, troubleshoot usage, and improve products through feedback. Responsibilities include handling sensitive case information, testing software, investigating AI-generated output, and developing reusable solutions across legal teams.

Develop and maintain full-stack software for a federal health insurance oversight system. Build Java and Spring backend services, APIs, database integrations, and React or Angular interfaces. Troubleshoot production issues, resolve defects, optimize PostgreSQL queries, support legacy applications, and contribute to modernization. Participate in Agile development, code reviews, automated testing, releases, deployments, documentation, and production support within AWS, Jenkins, and GitHub environments.

Build and deploy full-stack applications in secure environments for military decision-support missions. Develop fast, auditable backend microservices and message-driven workflows using Go, Java, or Python, alongside React and TypeScript interfaces with comparative and geospatial visualizations. Collaborate with architects, designers, product managers, and subject-matter experts; tune performance, implement automated testing, document work, and support secure delivery pipelines.

Build and maintain TypeScript and Node.js microservices for Kong’s billing platform. Responsibilities include subscription management, entitlement provisioning, usage metering, payment and CRM integrations, event-driven workflows, and distributed systems reliability. The role involves database design, testing, monitoring, code reviews, on-call support, and collaboration with engineering, finance, and revenue operations teams.

Build and maintain internal web applications and services supporting engineering, build, release, and deployment workflows. Develop backend APIs and integrations, own tools from requirements through deployment and support, contribute to shared tooling frameworks, implement observability, and collaborate through code reviews and design discussions. The role serves internal platform, software, hardware, and operations engineering users.

Leads enterprise software architecture, development, testing, modernization, and secure delivery. Establishes development standards and frameworks while building scalable applications across air-gapped, hybrid, and on-premises environments. Designs AI and GenAI solutions, data architectures, ETL pipelines, cross-domain integrations, and distributed systems using modern application technologies. Provides technical leadership for secure, interoperable, high-performing solutions involving AI orchestration, databases, containers, and enterprise infrastructure.

Leads enterprise software architecture, development, testing, modernization, and secure delivery across complex, air-gapped, hybrid, and on-premises environments. Establishes development standards and architectural frameworks while building scalable applications, AI and GenAI capabilities, data pipelines, cross-domain integrations, and distributed containerized systems. Provides technical leadership for zero-trust, interoperability, application security, and enterprise software engineering initiatives.

Design, build, and maintain blockchain and payments infrastructure; develop scalable microservices and secure RESTful APIs to transfer value across blockchain and banking protocols; integrate with banks and fintech; own system design, testing, deployment, and troubleshooting; ensure reliability, code quality, and strong test coverage while collaborating with product and engineering teams.

Develop Python-based automated tests, validation tools, analysis utilities, and quality metrics for autonomous systems. Support testing across simulation, SIL, HIL, VIL, laboratory, and hardware environments. Analyze results, debug integration issues, improve regression and performance testing, integrate tests into CI/CD workflows, and collaborate with autonomy, systems engineering, flight test, and integration teams.

Develop Python-based automated testing, simulation analysis, log-processing, scenario-generation, and domain-randomization tools for the Hivemind Platform. Support test orchestration, distributed simulation, containerized environments, CI/CD, build troubleshooting, and technical documentation. Investigate failures using logs, telemetry, rosbags, network captures, and test results while collaborating with autonomy, systems, and platform engineers.

Develop Python-based tools for simulation-data analysis, log processing, automated testing, scenario generation, and autonomy performance evaluation. Support test orchestration, distributed simulation, containerized environments, CI/CD, infrastructure configuration, debugging, and developer documentation. Collaborate with software, autonomy, systems, and platform engineers while contributing to reliable and repeatable Hivemind Platform testing workflows.

Develop C++ software interfaces connecting autonomy software with sensors, flight controllers, payloads, radios, and vehicle systems. Configure Linux mission computers, implement communication protocols, develop Python testing tools, and debug distributed-system data flow. Support software, hardware, vehicle, laboratory, and field integration testing while collaborating with autonomy, systems, test, and flight teams.

Design, develop, and deploy cloud applications in a secure Army cloud environment. Modernize a large-scale document management and search platform, optimize indexing and metadata for over 100 million documents, integrate generative AI and machine learning, and improve scalability. Responsibilities also include cloud security controls, system administration, DevSecOps, CI/CD, database optimization, user interface development, maintenance, and support within a hybrid government environment.