Top Software Engineer Jobs in Washington, DC

Lead engineer responsible for designing, developing, and optimizing petabyte-scale distributed data processing systems (Hadoop/Spark/Hive/Trino) on AWS. Leads performance tuning, system architecture, DevOps/CI-CD, security, AI tool adoption, and mentors engineers to improve product quality and delivery.

The role involves software development for a legacy web application, utilizing various programming languages and data engineering tasks for data migration, ensuring application integrity, and performance while collaborating with experts to refine requirements.

The Senior Software Developer will collaborate with a remote team to enhance the Neuron platform, focusing on software development tasks including distributed system design and maintenance of features.

The Senior Software Engineer will provide development and O&M support for a production Java application with PostgreSQL backend, collaborating in a cloud environment, and enhancing UI with JavaScript.

The role involves architecting scalable backend systems and data pipelines, providing technical leadership, and ensuring best practices in software development.

The Senior Full Stack Engineer is responsible for full stack development, architecture, mentoring, and modernizing applications for the Wisconsin Medicaid Market, focusing on secure and scalable solutions.

Freelance Senior Software Engineer to deliver full‑stack TypeScript/Next.js features for a fintech‑adjacent platform. Build accessible React UIs, transactional workflows, auth-aware data access, and clean service boundaries. Work with PostgreSQL/Prisma or Supabase, integrate CMS, write tests, maintain CI/CD (GitHub Actions → Vercel), and collaborate with product and design.

The role involves developing cross-platform API abstractions for the Unity Editor using modern C++. Responsibilities include maintaining codebases and collaborating with worldwide teams.

The Senior Embedded Software Engineer designs and develops low-level software for ARM-based hardware platforms, focusing on bare-metal development and security controls.

Lead the design and development of Windows desktop applications, focusing on architecture, accessibility, and best practices, ensuring quality and performance across releases.

The Senior Software Engineer will enhance Speechify's product experiences by building and optimizing services and SDKs, collaborating with product teams, and improving system efficiency.

Lead design and development of backend systems for satellite operations, focusing on automation, performance, and collaboration with aerospace teams. Responsible for algorithm validation and cloud integration.

Lead engineering teams in developing command and control software for mission systems. Manage technical execution, software architecture, and mentor engineers.

As a Senior Software Engineer in Test Automation, you'll design automation frameworks, develop CI/CD pipelines, and ensure the quality of VR training products.

The role involves leading software development for mission-critical applications, focusing on design, development, and maintenance using various technologies in a cloud environment.

Senior Software Developers lead projects by combining front-end and back-end technologies, guiding teams, and ensuring high-quality digital solutions that meet client needs. They mentor junior engineers and engage with stakeholders to improve processes and promote best practices.

The Senior Software Developer II - Full Stack will design and develop scalable systems, leading projects while mentoring junior staff and engaging with stakeholders. The role emphasizes technical leadership, problem-solving in software development, and innovative processes in cloud and AI technologies.

The role involves design and development of a database application, migrating data, and enhancing search tools using Azure AI Search and MS Power Suite technologies.

Lead the design and development of Windows desktop applications, ensuring performance, accessibility, and collaboration with various teams. Oversee the entire feature lifecycle and address complex issues in a user-centric manner.

The Senior Software Engineer will enhance Speechify's product by developing core services, optimizing functionalities, and collaborating with product teams, primarily using Kotlin for cross-platform SDK.

The Senior Software Engineer will develop and maintain Angular applications, collaborate with teams, implement features, and optimize front-end performance for a federal education program.

As a Senior Software Engineer, you will develop features for AI security capabilities, enhance workflows, and integrate systems while collaborating across teams.

Design, develop, test, secure, integrate, and maintain enterprise applications; support CI/CD pipelines and DevSecOps practices; perform code reviews, troubleshoot production issues, integrate APIs, and collaborate with stakeholders in a classified or sensitive federal IT environment.

Designs, develops, and implements digital solutions and systems, collaborates with teams, writes code, conducts testing, and ensures software quality and scalability.

Analyze complex system requirements; design software tools and subsystems; manage development using formal specifications; implement, integrate, and test software components; estimate costs and schedules; may supervise programmers; work independently and support web application development with cloud or low-code platforms.