> Markdown version of [/jobs/ext/1427141-software-test-engineer-ts-sci-polygraph](https://www.wearedevelopers.com/jobs/ext/1427141-software-test-engineer-ts-sci-polygraph). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Test Engineer TS/SCI Polygraph - **Company:** Leidos, Inc. - **Location:** Hanover, MD, United States - **Experience:** Experienced - **Salary:** $87,100.0 - $157,450.0 - **Contract:** Permanent contract - **Skills:** Testing (Software), Microsoft Windows, Agile Methodology, Application Testing, Automation of Tests, CentOS, Signals Intelligence, Computer Engineering, Linux, JSON, Junit, SoapUI, Software Engineering, SQL Databases, Strategies of Testing, Extensible Markup Language (XML), Scripting, Information Technology, Restful APIs, Software Version Control - **Published:** July 24, 2026 - **Apply:** https://dejobs.org/x/x/5096B0149C3C4A46BA994171EB9798C9/job/ ## About the Role * TS/SCI Clearance with polygraph on day one (no exceptions) * Bachelor's Degree or higher in computer engineering or in a field related to computer engineering or computer science disciplines is required. 5+ years of software engineering experience is required. 2+ years' work experience in SIGINT, IA, or IT domains is required. 4 years of software engineering experience may be substituted for a bachelor's degree, for a total of 9 years. ## Description * Collaborate with software engineers to design effective test strategies, test cases, and quality assurance approaches * Develop and maintain automated testing frameworks, test harnesses, and both manual and automated test solutions * Execute and manage functional, regression, integration, and acceptance testing across system lifecycles * Identify, document, track, and help resolve defects while analyzing test results for performance, load, and reliability issues * Test applications in Windows and Linux/CentOS environments using tools such as Behave, SoapUI, JUnit, and others * Apply knowledge of REST APIs, JSON/XML, scripting languages, version control systems, SQL, and related technologies in testing processes * Communicate technical findings clearly while working independently and within Agile teams to prioritize tasks and ensure compliance (including Section 508 accessibility) ## Related Videos - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [From boy scouting to redrawing the landscape](https://www.wearedevelopers.com/videos/1140-from-boy-scouting-to-redrawing-the-landscape) - [Introducing JSON Structure](https://www.wearedevelopers.com/videos/100219-introducing-json-structure) ## Related Articles - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Software Engineer Career: Things You Should Know](https://www.wearedevelopers.com/magazine/143-software-engineer-career-things-you-should-know) - [Is Software Engineering Hard?](https://www.wearedevelopers.com/magazine/448-is-software-engineering-hard) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer)