Junior Software Test Engineer Jobs in Reston, VA

Location: Northern Virginia
Travel: None
Clearance: Active Top Secret clearance required
Citizenship: US Citizenship required

Grimm is an innovative, forward-looking cybersecurity organization focused on solving complex technical challenges across hardware, firmware, and software systems. Our teams specialize in reverse engineering, vulnerability research, and security engineering, supporting mission-critical efforts across national security, defense, and critical infrastructure sectors.

Our work is rooted in real-world operational experience identifying advanced threats, uncovering critical vulnerabilities, and developing meaningful solutions to complex problems. Grimm engineers operate across embedded systems, vehicles, IoT, and enterprise technologies, with a focus on understanding systems deeply and demonstrating real-world impact.

We are a highly technical and hands-on organization. Our engineers and researchers specialize in breaking systems, discovering vulnerabilities, and improving resilienceworking directly with real hardware and software to understand how systems function and how they fail.

Grimm is seeking a Junior Software Test Engineer to support software development and automated testing efforts within our Tailored Software group.

This role is centered on maintaining and executing automated test procedures, supporting operational testing activities, and assisting development teams with software quality assurance and test automation efforts. The ideal candidate will be comfortable working in collaborative engineering environments and interested in supporting the full software testing lifecycle.

We're looking for individuals who are detail-oriented, technically curious, and eager to grow within modern software development and testing environments.

• Maintain and update existing automated test procedures and scripts
• Containerize test code and support testing workflows within Docker environments
• Develop test scripts utilizing automated test frameworks
• Generate automated test reports detailing performance results and operational issues
• Conduct and participate in Test Readiness Reviews (TRRs)
• Participate in Test Review Meetings covering system test execution and results
• Maintain repositories of test data supporting operational testing activities
• Prepare, review, and execute test plans and procedures
• Support testing efforts across the software development lifecycle
• Collaborate with software engineers, developers, and technical teams

• Minimum 2 years of relevant software testing or test automation experience
• Experience maintaining and executing test plans, test cases, and test procedures
• Familiarity with software testing across the full system development lifecycle
• Basic understanding of automated testing frameworks and methodologies
• Familiarity with Docker or containerized environments
• Strong written and verbal communication skills
• Ability to work collaboratively within small development teams
• Must be a US Citizen
• Active Top Secret clearance required

• Experience with test automation frameworks
• Experience automating REST-based backend testing using SOAPUI or equivalent tools
• Experience generating automated testing reports and operational test documentation
• Familiarity with Agile software development environments
• Experience supporting government or defense-related programs
• Interest in DevSecOps, software quality assurance, or automation engineering

Grimm offers a comprehensive benefits package that includes medical, dental, and vision coverage, life and disability insurance, retirement benefits, paid leave, and opportunities for tuition assistance and ongoing professional development.

You'll be working alongside highly specialized engineers and technical teams supporting mission-critical software systems and national security efforts. Our work requires strong technical ownership, attention to detail, and the ability to operate effectively within collaborative engineering environments.

If you enjoy solving technical problems, improving software quality, and developing your skills within modern testing and automation environments, you'll find this opportunity both challenging and rewarding.

• Prolonged periods sitting at a desk and working on a computer

Grimm is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age, disability, genetic information, veteran status, or any other characteristic protected by applicable federal, state, or local laws.