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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Systems Integration/Test Engineer Stf - E4 - **Company:** Lockheed Martin - **Location:** Fairfax, VA, United States - **Salary:** $118,000.0 - $219,100.0 - **Contract:** Permanent contract - **Skills:** Systems Engineering, Cyber Security, Network Planning and Design, Verification and Validation (Software), Subsystems, System Testing, Systems Integration, Software Verification, GNSS - **Published:** September 11, 2026 - **Apply:** https://www.jobmonkeyjobs.com/career/28009991/Systems-Integration-Test-Engineer-Stf-E4-Virginia-Fairfax-1301 ## About the Role * Expert Level GNSS/PNT or SBAS Domain experience. * Terrestrial and satellite networking experience * Experience with Safety of Life Processes * Requirements verification and Test planning (V&V), test procedure development and execution in front of customer witnesses. * Travel to Au and NZ sites. 25% * Cyber security knowledge - Design for security, hardening, etc * Able to communicate in written and verbal form in a virtual, global team Strong on Documentation such as subsystem network design documents, test plans, maintenance procedures, etc. ## Description LockheedMartinSpace is seeking a Level4 Systems Integration and Test Engineer to lead the verification and validation of the advanced Global Navigation Satellite System (GNSS) and Satellite Based Augmentation System (SBAS) solutions. The role involves applying rigorous systems engineering and reliable and secured networking techniques, ensuring compliance with industry standard development assurance guidelines, and delivering high reliability navigation capabilities for our commercial customers. * Software Integration and Test Support - Develop and execute system design, cybersecurity requirements, and implementation plans for GNSS/SBAS hardware and software. * Planning, system level integration and test procedure/script development, problem identification/isolation, resolution planning/prioritization/tracking, likely some significant analysis of collected data to support requirements verification, etc. * Cross Disciplinary Coordination - Work closely with software, hardware, RF, electrical, and mission operations teams to resolve integration issues. * Mentorship & Expertise - Provide technical guidance to junior engineers and serve as a subject matter expert on GNSS/SBAS technologies. * Stakeholder Interaction - Communicate status, risks, and technical findings to customers, suppliers, and subcontractors., 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. ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Thinking Differently - How to Make Money from Cyber Attacks & Cheats](https://www.wearedevelopers.com/videos/745-thinking-differently-how-to-make-money-from-cyber-attacks-cheats) - [10M Data Records Lost, Underwater Computing, and Psychedelic Fish - Matthias Geniar](https://www.wearedevelopers.com/videos/1908-10m-data-records-lost-underwater-computing-and-psychedelic-fish-matthias-geniar) - [Cyber Security: Small, and Large!](https://www.wearedevelopers.com/videos/259-cyber-security-small-and-large) - [Remote Driving on Plant Grounds with State-of-the-Art Cloud Technologies](https://www.wearedevelopers.com/videos/251-remote-driving-on-plant-grounds-with-state-of-the-art-cloud-technologies) - [Develop on Windows, Deploy on Red Hat Enterprise Linux](https://www.wearedevelopers.com/videos/1600-develop-on-windows-deploy-on-red-hat-enterprise-linux) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Integration And E2E Testing: Are They Complementary or Interchangeable?](https://www.wearedevelopers.com/magazine/86-integration-and-e2e-testing-are-they-complementary-or-interchangeable) - [What is a Test Plan: Guide to Test Planning](https://www.wearedevelopers.com/magazine/191-what-is-a-test-plan-guide-to-test-planning) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)