Two Six Technologies
Senior Software Test Engineer
$97K–$140K
Arlington, Virginia +1 · Senior · Full-time · Posted Jun 30, 2026
- Location
- Arlington, Virginia
Arlington, Virginia, United States - Experience
- 5+ years of software testing experience; 3+ years of backend API testing, integration testing, and functional testing experience.
- Education
- Bachelor’s degree in a relevant field, or comparable professional experience.
- Visa sponsorship
- Eligible to obtain and maintain a TS/SCI security clearance.
About the job
Tests software products and integrated systems to verify functionality, data flows, and mission readiness, while helping scale automated testing and develop strategies for validating AI-assisted code.
What you'll do
- Conduct and improve manual functional, end-to-end, regression, and performance testing; identify, document, and troubleshoot defects.
- Evaluate web applications, distributed architectures, and interoperable data streams as an integrated ecosystem.
- Help implement automated testing frameworks and testing strategies for AI-assisted code development.
What they ask for
- 5+ years of software testing experience, with exposure to web testing frameworks such as Selenium, Playwright, Cypress, etc.
- 3+ years of backend API testing, integration testing, and functional testing experience.
- Solid understanding of networking concepts, distributed systems, and cross-network data flows; experience with UNIX / LINUX-based operating systems.
- Bachelor’s degree in a relevant field, or comparable professional experience.
Nice to have
- Military cyber or networking experience, or familiarity with military, cyber, and networking vernacular.
- Familiarity with AI development and testing capabilities; virtualization or cloud technologies such as Docker, vSphere, Ansible, or AWS.
Pay
$96,700 — $140,000 USD (base salary)
Tools
Selenium, Playwright, Cypress, UNIX / LINUX, SQL, Docker, vSphere, Ansible
AI focus
Contribute to testing strategies that verify the quality, robustness, and integrity of AI-assisted code development; familiarity or interest in AI-assisted coding tools and code-integrity verification is requested.
Model-written summary · the original posting is authoritative