> Markdown version of [/jobs/ext/4674750-systems-integration-test-engineer-stf-level-4](https://www.wearedevelopers.com/jobs/ext/4674750-systems-integration-test-engineer-stf-level-4). 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 - Level 4 - **Company:** Lockheed Martin - **Location:** King of Prussia, PA, United States - **Salary:** $118,000 - $219,100 - **Contract:** Permanent contract - **Skills:** Systems Development Life Cycle, Software Engineering, Software Requirements Analysis, Verification and Validation (Software), Software Testing Automation Framework, Subsystems, System Testing, Systems Integration - **Published:** November 11, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9307493/systems-integrationtest-engineer-stf-level-4 ## About the Role * Familiarity with the software development lifecycle * Experience with the Space domain * Experience developing and communicating test procedures * Must have the ability to obtain and maintain a Top Secret clearance * Demonstrated communications skills (verbal and written) with the ability to prepare and present program status to management and customers * Experience in technical planning, system integration, verification and validation, or formal system development/qualification/certification Desired Skills * Experience with building test architectures * Experience with Automation Framework * Self-driven - ability to work independently and in a team environment * Ability to work and communicate with teams spread across the country * Experience with writing use cases, scenarios, and software requirements for complex systems and defining measurements of success ## Description 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.