Senior Software Development Engineer Jobs in Washington, DC
Senior Software Development Engineer jobs in Washington, District of Columbia are in active demand, with employers like Esri, Deloitte, and BAE Systems USA among those hiring. See the openings below and apply to the ones that match your experience.
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Showing 5 of 90+ Senior Software Development Engineer jobs









- Application Development and Feature Delivery: Design, develop, test, and deploy new features and enhancements across front-end (ReactJS) and back-end (Python/FastAPI) layers of enterprise applications.
- API Engineering: Build and maintain RESTful APIs using FastAPI, ensuring proper validation, error handling, versioning, and documentation (e.g., OpenAPI/Swagger).
- Front-End Development: Develop responsive, accessible front-end interfaces using ReactJS, adhering to UX standards and Section 508 accessibility requirements.
- Database Management: Implement and manage data models, queries, migrations, and stored procedures within PostgreSQL databases, with strict attention to performance and data integrity.
- Trunk-Based Development and Collaboration: Operate within a trunk-based development workflow, committing small, incremental changes frequently to the main branch to reduce integration risk. Participate in mandatory peer code reviews and utilize short-lived feature branches and feature flags.
- Containerization and Cloud Deployment: Package applications and services using Docker, maintaining clean and reproducible container images. Support deployment of containerized workloads to AWS environments (e.g., ECS, EKS) utilizing AWS services such as EC2, S3, RDS, CloudWatch, and IAM.
- Testing and Quality Assurance: Write and maintain automated unit, integration, and regression tests for back-end (pytest or equivalent) and front-end (Jest, React Testing Library) code. Ensure features meet appropriate test coverage prior to merge.
- Maintenance and Technical Debt Reduction: Investigate, diagnose, and resolve application defects, performance issues, and security vulnerabilities. Proactively identify and address technical debt by refactoring code.
- Documentation: Maintain accurate, up-to-date technical documentation for developed systems, including API documentation, data model diagrams, architecture decision records (ADRs), and developer setup guides.
- Clearance & Background: Must be able to obtain and maintain a Public Trust Tier 2 clearance. Must successfully pass an FBI criminal check and fingerprinting conducted by the U.S. Capitol Police.
- Education: A Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related field (or equivalent experience) is preferred.
Experience & Skills:
- Demonstrated proficiency in the core technology stack: Python, FastAPI, ReactJS, PostgreSQL, and Docker.
- Sufficient familiarity with AWS cloud services to deploy, monitor, and troubleshoot applications in cloud-hosted environments.
- Strong knowledge of automated testing frameworks, Agile/Scrum sprint cycles, and secure coding practices aligned with NIST SP 800-53 and FISMA.
- Knowledge of CI/CD pipeline concepts and Infrastructure as Code (IaC) tooling (e.g., Terraform, GitHub Actions) is highly desired.
- While performing the duties of this job, the employee may be regularly required to stand, sit, talk, hear, reach, stoop, kneel, and use hands and fingers to operate a computer, telephone, keyboard, and standard office equipment
- Specific vision abilities required by this job include close vision requirements due to computer workThe employee must occasionally lift and/or move up to 15 pounds
- Fine hand manipulation (keyboarding)
- Exposure to general office conditions while conducting office duties
- Moderate noise (i.e., business office with computers, phone, and printers, light traffic)
- Ability to work in a confined area
- Ability to sit at a computer terminal for an extended period
Edgewater Federal Solutions is a privately held government contracting firm located in Frederick, MD. The company was founded in 2002 with the vision of being highly recognized and admired for supporting customer missions through employee empowerment, exceptional services, and timely delivery. Edgewater Federal Solutions is ISO 9001, 20000-1, 270001 certified, appraised at CMMI Level 3 Maturity for Development and Services, and has been named in the Top Workplaces in the Greater Washington Area Small Companies since 2018.
Edgewater Federal Solutions is an Equal Opportunity Employer. It has been and continues to be our policy to provide equal employment to all employees and applicants for employment without regard to race, color, religion, gender, national origin, age, disability, marital status, veteran status and/or other status protected by applicable law.
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Find JobsSenior Software Development Engineer Job Market in Washington
Who's Hiring
- Esri6

- Deloitte5

- BAE Systems USA4

- Anduril3

- CVS Health3

Top Industries Hiring
- Technology & Software22
- Consulting & Professional Services11
- Accounting & Auditing5
- Investment & Asset Management5
- Healthcare & Medical Services3
Senior Software Development Engineer Jobs in Washington: Frequently Asked Questions
How many senior software development engineer jobs are there in Washington?
There are 90+ senior software development engineer openings in Washington, District of Columbia on Migrate Mate as of June 2026. New positions post regularly as Washington employers hire.
Which companies hire senior software development engineers in Washington?
Washington senior software development engineer roles are posted by Esri, Deloitte, and BAE Systems USA and others right now, based on current listings on Migrate Mate as of June 2026.
Are there remote senior software development engineer jobs in Washington?
Yes. About 45% of senior software development engineer openings tied to Washington are remote or hybrid as of June 2026. The rest are on-site roles based in and around Washington.
Which industries hire the most senior software development engineers in Washington?
Most senior software development engineer openings in Washington sit in Technology & Software, Consulting & Professional Services, and Accounting & Auditing, per current listings on Migrate Mate as of June 2026.
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