Demo

Backend Software Engineer

Haystack
Washington, DC Full Time
POSTED ON 7/19/2026
AVAILABLE BEFORE 8/17/2026
We're hiring on behalf of a Haystack partner!

The Role

  • Build and maintain core backend services for a high-visibility, data-driven application
  • Develop RESTful APIs and support data-driven functionality
  • Contribute to ongoing system enhancements within a Linux-based environment
  • Support system reliability, performance, and data accuracy for mission stakeholders
  • Implement backend logic for data transformation, processing, and system workflows

What You'll Need

  • Bachelor’s degree in Computer Science, Software Engineering, or related field with 4-8 years experience, or Master’s with 2-6 years experience
  • US Citizenship with an active TS/SCI clearance and ability to pass a Polygraph
  • Professional experience developing object-oriented applications in Java or Python
  • Hands-on experience building and maintaining RESTful APIs
  • Basic to moderate experience with SQL and relational databases
  • Working knowledge of Linux-based environments

What's On Offer

  • High impact work supporting real-time decision-making
  • Collaborate with engineering teams and mission stakeholders across programs
  • Opportunity to build deeper expertise in backend development, API design, and scalable systems
  • Challenging work on complex backend features

Apply via Haystack today!

Salary : $87,100 - $157,450

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