Senior Software Test Engineer

Job Description

Description:

Make an Impact in Mission-Critical Testing

Are you an experienced test engineer with a passion for precision, security, and innovation? Do you thrive in fast-paced environments where your work directly supports national defense? Join Prime Solutions Group (PSG) and help shape the future of secure systems as a Senior Software Test Engineer.

Who We Are

At PSG, we develop advanced software solutions for the Department of Defense and Intelligence Community. Headquartered in Goodyear, Arizona, and founded in 2007, we specialize in airborne and spaceborne sensor processing, applying cutting-edge Agile and Model-Based Systems Engineering (MBSE) methods to solve complex challenges across the system lifecycle.

Our team of experts in RF engineering, AI/ML, M&S, and digital signal processing work in tight-knit, agile teams where innovation and technical excellence thrive.

What You’ll Do

As a Senior Software Test Engineer, you'll design and execute comprehensive test plans for embedded systems, data processing software, and secure applications. You’ll drive the creation and automation of Behavior-Driven Development (BDD) test frameworks, help identify critical bugs early, and collaborate across the product lifecycle to ensure mission success.

Your Impact Will Include:

Design, build, and maintain automated testing frameworks

Develop and execute test cases using BDD tools like Cucumber and Gherkin

Collaborate with developers and system engineers in Agile teams to test end-to-end functionality

Write step definitions in Python and integrate tests into the codebase

Lead regression testing and ensure high-quality software delivery

Analyze test results and generate detailed reports for stakeholders

Contribute to improving testing methodologies and standardsRequirements:

What You Bring

U.S. Citizenship (Required)

Active Top Secret Clearance with SCI eligibility and CI Polygraph (Required)

Bachelor’s degree (or higher) in Computer Science, Engineering, or related field

9+ years of relevant experience with a bachelor’s OR 7+ years with a master’s degree

Available to work onsite in Goodyear, AZ or Herndon, VA

Preferred Skills or Experience

Technical Skills:

Deep understanding of software testing principles, including regression testing

Proficiency in BDD concepts and tools (Cucumber, Gherkin)

Python programming for test automation; additional languages (Java, C#) are a plus

Strong analytical and documentation skills

Hands-on experience with embedded system testing

Bonus Skills:

MBSE tools (MagicDraw, Cameo, Enterprise Architect)

Experience with Glue Code and automated regression frameworks

Technical writing and defect tracking expertise

Why Join PSG?

Mission-Focused Work: Support national security through innovation

Professional Growth: Work with top-tier engineers and learn continuously

Collaborative Culture: Small teams, big impact—where your voice matters

Competitive Benefits: Company-paid health coverage, flexible schedules, 9/80 workweek, and more

Ready to Test What Matters?

Full-time

Hybrid remote