> Markdown version of [/jobs/ext/3735418-systems-engineer-stf-e4](https://www.wearedevelopers.com/jobs/ext/3735418-systems-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 Engineer Stf - E4 - **Company:** Lockheed Martin - **Location:** Fort Worth, TX, United States - **Salary:** $104,900.0 - $194,700.0 - **Contract:** Permanent contract - **Skills:** Testing (Software), Data Analysis, Systems Engineering, C++ (Programming Language), Software Debugging, Linux, Hardware-In-The-Loop Simulation, Python (Programming Language), MATLAB, Regression Testing, Systems Architecture, Systems Integration, Scripting, System-level Testing, SC Clearance, Programming Languages - **Published:** October 14, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9238169/systems-engineer-stf-e4 ## About the Role You are an experienced systems engineer with deep technical expertise in sensor integration and test. You thrive in collaborative environments, bring rigorous analytical and problem-solving skills, and are comfortable leading complex hardware-in-the-loop and virtual test activities. You take ownership of mission-critical sensor capabilities, mentor less-experienced engineers, and your proactive mindset drives continuous process improvement across the F-35 Sensor SI&T team., MUST BE A U.S. CITIZEN - This position is located at a facility that requires special access. The selected candidate must have an active Secret clearance., * Bachelor's degree in an engineering field or STEM discipline. * Strong background in systems engineering, integration, and test, with a proven track record of applying these skills on complex projects. * Demonstrated, hands-on experience in lab integration and test for complex mission system capabilities. * Demonstrated experience with system integration and test of sensor capabilities (Radar, EW, EO/IR, CM and/or Fusion) at the system or system-of-systems level. * Proven experience leading troubleshooting, root cause analysis, and anomaly resolution for sensor or mission systems. * Strong written and verbal communication skills, including communicating technical risk, status, and recommendations to a variety of stakeholders and leadership. Desired Skills * Active program clearances. * Advanced degree in an engineering field or STEM discipline. * Experience with F-35 Mission Systems capabilities within aircraft platforms. * Familiarity with Mission Systems Integration Labs (MSIL). * Familiarity with F-35 mission systems and sensor architectures. * Experience with software test design, software debug, lab integration, and system-level test. * Experience with Linux Operating Systems. * Experience with Open System Architecture and Common Systems. * Hardware-in-the-loop (HITL) simulation and virtual test venue experience. * Systems Engineering development and integration experience. * Experience working with cross-functional engineering teams in an agile environment. * Experience with developing system, software, or hardware requirements for mission systems or sensor capabilities. * Experience with data analysis tools, scripting, or programming languages (e.g., Python, MATLAB, C++). ## Description You will be the Systems Integration & Test Engineer Stf for the F-35 Sensor Systems Integration & Test (SI&T) team, which is responsible for mission system capability integration & maturation, verification testing, and regression testing for all F-35 modernization efforts. What You Will Be Doing As the Systems Integration & Test Engineer Stf, you will be responsible for technical test planning and execution of the F-35 Sensor Suite, including Radar, Electronic Warfare (EW), Countermeasures (CM), Electro-Optical/Infrared (EO/IR) sensors, and Fusion. You will ensure the SI&T process follows prescribed engineering standards and drive continuous improvement of those processes. Your responsibilities will include: * Generating test plans and detailed test procedure documentation. * Coordinating test objectives, scope, and execution across agile capability development teams and stakeholder organizations. * Conducting system-level testing in hardware-in-the-loop (HITL) and virtual test venues. * Providing technical leadership for sensor integration and test activities and serving as a key point of contact for the F-35 Sensor SI&T team. * Performing troubleshooting, root cause analysis, and anomaly resolution for sensor-related issues. * Reviewing and enhancing SI&T engineering processes for continuous improvement. * Supporting occasional second shift and weekend work as required.