> Markdown version of [/jobs/ext/3988210-systems-integration-test-engineer-stf-e4](https://www.wearedevelopers.com/jobs/ext/3988210-systems-integration-test-engineer-stf-e4). 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). --- # Systems Integration/Test Engineer Stf - E4 - **Company:** Lockheed Martin - **Location:** King of Prussia, PA, United States - **Salary:** $118,000.0 - $219,100.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Continuous Integration, Octopus Deploy, Regression Testing, Requirements Management, Selenium, Subsystems, System Testing, Systems Integration, DevOps Tools - Open-source, Cypress (Programming Language), Gitlab, System-level Testing, Kubernetes, Information Technology, Playwright, Rancher - **Published:** October 28, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9269810/systems-integrationtest-engineer-stf-e4 ## About the Role * Bachelor's and/or Masters degree in Computer Science, Engineering, or a related technical field * Experience with the integration, design, test, or analysis of software products or subsystems * Experience with Command & Control (C2) operations for satellite communications ground systems, such as planning, directing, monitoring, and managing communications services and ground resources. * Familiarity with Digital Engineering tools like DOORs and Cameo for requirements management and systems modeling * Experience with automated end-to-end testing using tools like Playwright or similar testing frameworks (Cypress/Selenium) * Familiarity with continuous integration concepts and DevSecOps tools (e.g. Kubernetes, Rancher, ArgoCD, and GitLab) * US Citizenship required. Final secret clearance required to start the role Desired Skills * Experience writing test plans, test procedures, or technical documents * Experience preparing for and executing spacecraft or system-level tests * Capable of working in a fast-paced environment with evolving requirements and dynamic schedules * Demonstrated behaviors of a systems problem solver; selects and applies appropriate systems thinking skills to solve very sophisticated problems and implement constructive change * Proficient in AI prompting as it applies to this position and practice ## Description * Plan, implement, test, document, and maintain solutions for the integration and testing of internally developed and COTS components, elements, and systems * Establish functional and technical specifications and standards, solve software interface problems, define input/output parameters, and ensure integration of the system * Review, evaluate, and derive requirements for testability * Develop and direct preparation and execution of comprehensive test plans, procedures and schedules * Coordinate system testing activities with programs and other organizations. * Support end-to-end testing activities including regression testing. * Perform analysis of test results and prepare comprehensive system evaluation reports which verify and validate system performance * Write discrepancy reports and perform integration regression testing to verify/validate incorporated fixes to software, components, subsystems and systems Plans, implements, tests, documents, and maintains solutions for the integration and testing of in-house developed and COTS/GOTS components, elements, subsystems and/or systems. Synthesizes customer contractual needs and requirements into system test solutions that acknowledge technical, schedule and cost constraints. Establishes functional and technical specifications and standards, solves hardware/software interface problems, defines input/output parameters, and ensures integration of the entire system or subsystem. Reviews, evaluates and derives requirements for testability, develops and directs preparation and execution of comprehensive test plans, procedures and schedules for complete systems and/or subsystems. Coordinates subsystem and/or system testing activities with programs and other organizations. Performs analysis of test results and prepares comprehensive subsystem and/or system level evaluation reports which verify and validate system performance. Writes discrepancy reports and performs integration regression testing to verify/validate incorporated fixes to software, components, subsystems and systems.