Senior Software Engineer; BackEnd

We are seeking a Senior Software Engineer who thrives in modern backend environments and enjoys leading meaningful software modernization efforts. This is a highly visible, hands‑on role for an experienced engineer who wants to influence architecture, mentor teammates, and deliver scalable, high‑quality solutions that matter. This project is for a large government agency in the Washington, DC metropolitan area. This position is hybrid and must be available to work onsite as needed.

If you enjoy owning complex systems end to end, collaborating closely with stakeholders, and helping teams adopt best practices, this role offers both technical depth and leadership opportunity.

As a Senior Software Engineer, you’ll have real ownership and influence:

• Play a key role in modernizing and enhancing enterprise systems, from design through delivery
• Participate in and help lead Agile development activities, including:
  • Requirements gathering and solution design
  • Stand‑ups and sprint ceremonies
  • Writing user stories and technical tasks
  • Code development and peer reviews
• Lead development efforts for web applications and services using:
  • .NET (C#)
  • PostgreSQL
  • GraphQL
  • Optional MEAN stack technologies
  • Contribute to and improve CI/CD pipelines and deployment processes
  • Support containerized environments, troubleshoot deployments, and improve system reliability
  • Design and implement unit testing to ensure long‑term code quality
  • Review and support performance and load testing, identifying bottlenecks and optimization opportunities
  • Troubleshoot complex issues and implement scalable, maintainable solutions
  • Serve as a trusted technical partner to a small, collaborative development team
  • Champion engineering best practices and continuous improvement across the software lifecycle
• What You’ll Bring
  • Minimum 5 years of Software Development experience.
• Strong experience building and maintaining applications using .NET (C#)
  • Hands‑on experience designing and supporting Graph
    
    QL APIs
  • Solid experience working with Postgre
    
    SQL and/or Microsoft SQL Server
  • Proven ability to design and maintain data models and database schemas
  • Experience serving as a senior or lead engineer, guiding development efforts and influencing technical direction
  • Familiarity with Agile development practices, including sprint planning and backlog refinement
  • Working knowledge of Dev Ops tools and practices, including Docker and CI/CD pipelines
  • Comfort working independently and collaboratively, with a passion for mentoring junior developers
  • Strong communication skills and experience working with stakeholders to translate requirements into technical solutions
• Bonus Skills (Nice to Have)
  • Experience with legislative systems or legislative data
  • Familiarity with Microsoft Azure cloud services
  • Exposure to MEAN stack technologies (Mongo
    
    DB, Express, Angular, Node.js)
  • Experience with React.js (a plus, not a requirement)
• Why This Role?
  • High‑impact modernization work—not just maintenance
  • Real technical ownership and influence
  • Opportunity to mentor and lead without stepping away from hands‑on engineering
  • Collaborative team environment with modern tools and practices
• Clearance and Citizenship Requirements
  • Ability to attain and retain a Public Trust Clearance
  • U.S. Citizenship is a requirement for this Program

Synectics is an Equal Opportunity Employer