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Senior Software Test Engineer

TST Main Office (901 N. Stuart St) - Arlington, VA💼 Full-time💰 $96,700–$96,700🗓 2026-06-30 → 2026-10-02

Core

Develop and execute manual functional and user-acceptance tests for custom web applications, distributed architectures, and interoperable data streams; assist in implementing automated testing frameworks and strategies for AI-assisted code development.

Role type

Senior Software Test Engineer (QA)

Builds

Custom web applications, distributed architectures, interoperable data streams

Domain

Defense technology, cybersecurity, distributed systems

Required skills

Manual functional testing, user-acceptance testing, web automation tools (Selenium, Playwright, Cypress), backend API testing, integration testing, networking concepts, distributed systems, UNIX/Linux, SQL, technical writing, defect tracking, troubleshooting (via careerplan.io/jobs/6103966004-senior-software-test-engineer-at-twosixtechnologies)

Preferred skills

AI-assisted coding verification, military cyber experience, virtualization/cloud (Docker, vSphere, Ansible, AWS), Bash/Python/JavaScript scripting, geospatial libraries (OpenLayers, CesiumJS), Agile methodology

Technologies

Selenium, Playwright, Cypress, Docker, vSphere, Ansible, AWS, OpenLayers, CesiumJS, SQL, UNIX, LINUX

Responsibilities

Develop functional, end-to-end, regression, and performance tests in manual environments; evaluate custom web applications and data streams as a unified ecosystem; assist in rolling out automated testing frameworks; design testing strategies for AI-assisted code; detect, document, and track defects; reproduce and troubleshoot product defects; plan and implement testing processes aligned with operational timelines

Seniority

Senior, hands-on IC