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# Systems Integration/Test Engineer - Level 3 Sr

- **Company:** Lockheed Martin
- **Location:** King of Prussia, PA, United States
- **Experience:** Expert
- **Salary:** $95,900 - $178,100
- **Contract:** Permanent contract
- **Skills:** Emulators, Health Information Management, Java GUIs, Regression Testing, Subsystems, System Testing, Systems Integration, Strategies of Testing
- **Published:** November 6, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9294495/systems-integrationtest-engineer-level-3-sr

## About the Role

To be considered, candidates must meet all requirements listed:

 * Experience developing system integration and verification test plans, test cases, procedures, and reports.
 * Hands-on experience supporting qualification or verification testing of complex systems.
 * Experience developing test strategies that support formal product sell-off and acceptance.
 * Familiarity with test instrumentation, including thermocouples, strain gauges, and accelerometers, and with data-acquisition tools such as data and video loggers.
 * Experience using configuration GUIs/HMIs, emulators, operating systems, and interface protocols.
 * Ability to investigate, document, and report system faults, anomalies, and test results.
 * Strong verbal and written communication skills, including the ability to prepare clear reports and present technical findings to technical and non-technical audiences.

Desired Skills

Nice-to-have skills that strengthen candidacy but are not required:

 * Experience supporting programs in the space domain.
 * Experience writing test plans, procedures, and other technical documentation.
 * Experience with automation frameworks.
 * Experience in defense-related test environments.
 * Active Secret or higher security clearance.
 * Ability to adapt to changing requirements and schedules and apply systems thinking to complex technical problems.

## Description

* Develop and maintain test approaches, plans, procedures, and schedules based on customer requirements and technical, cost, and schedule constraints.
 * Define test specifications and standards, assess requirements for testability, and address hardware and software interface issues.
 * Coordinate subsystem and system testing with program teams and other organizations.
 * Prepare for and execute comprehensive integration and verification tests.
 * Analyze test results and prepare evaluation reports to verify and validate system performance.
 * Document discrepancies and conduct regression testing to confirm that software, component, subsystem, and system fixes are effective.

About Lockheed Martin Space

Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future.

At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We're erasing boundaries and forming partnerships across industries and around the world. We're advancing spacecraft and the workforce to fuel the next generation. And we're reimagining how space can connect us, ensuring security and prosperity.