Software Development Engineer in Test (SDET)

Metron•Reston, VA

1d•Onsite

About The Position

Metron is an employee-owned company dedicated to delivering innovative solutions for the most challenging national security problems. For over 40 years, our principled approach to problem-solving has yielded creative solutions at the intersection of advanced mathematics, computer science, physics, and engineering. Our people are leaders in their technical fields and are passionate about solving challenging problems. We look for individuals who share this same passion and can apply their experience in real-world settings. Our Reston team is seeking a mid-level Software Development Engineer in Test (SDET) to help build and mature the testing infrastructure supporting production software for simulation, optimization, and decision support in mission-focused environments. This role is for someone who can develop robust test harnesses, mocking infrastructure, and automated and manual testing strategies. A successful candidate will also help integrate testing into CI/CD pipelines and improve software quality and reliability across Java, Rust, and TypeScript-based applications. The strongest candidates will bring solid software development fundamentals, hands-on experience with software testing and test infrastructure, and the technical judgment to build scalable, maintainable testing practices across a growing production codebase.

Requirements

Bachelor’s degree in computer science, mathematics, physics, applied math, or related field
At least 3 years of industry experience
Experience building test infrastructure including mocking and CI/CD pipelines
Experience in software testing and test harness development
Experience designing automated and manual testing
Software Development experience in Java, Rust or Typescript/React
Ability to work effectively with researchers, engineers, and end users to translate technical concepts into usable software
U.S. CITIZENSHIP REQUIRED; successful candidates will be subject to a security investigation and must meet eligibility requirements for access to classified information

Nice To Haves

Familiarity with full-stack web application development in any frameworks/languages
Active DoD Security Clearance
Experience using ADO, Gitlab or similar CI/CD tools

Responsibilities

Develop robust test harnesses
Develop mocking infrastructure
Develop automated and manual testing strategies
Integrate testing into CI/CD pipelines
Improve software quality and reliability across Java, Rust, and TypeScript-based applications