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# Sr HWIL Test Engineer

- **Company:** Lockheed Martin
- **Location:** Grand Prairie, TX, United States
- **Experience:** Expert
- **Salary:** $85,300.0 - $158,300.0
- **Contract:** Contract
- **Skills:** Testing (Software), Data Analysis, Systems Engineering, Automation of Tests, C++ (Programming Language), Configuration Management, Ethernet, Firmware, Field-Programmable Gate Array (FPGA), Hardware-In-The-Loop Simulation, Python (Programming Language), LabVIEW, MATLAB, Real-Time Operating Systems, Regression Testing, Real Time Simulation, Serial Communications, Systems Integration, Test Data, Test Execution Engine, Scripting, Test Scripts, Information Technology, Software Version Control, Programming Languages
- **Published:** October 30, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9277818/sr-hwil-test-engineer

## About the Role

* Bachelor's degree in Electrical, Computer, Systems Engineering, Computer Science, or a related STEM field, or equivalent combination of relevant education and experience.

 * 3+ years of related experience in HWIL testing, real-time simulation integration, hardware/software integration, or comparable laboratory test environments.

 * Experience developing test procedures, executing integrated hardware/software tests, analyzing data, and documenting results.

 * Hands-on experience troubleshooting electronic systems, hardware/software interfaces, and laboratory test configurations.

 * Knowledge of real-time test concepts, timing and synchronization, data acquisition, and command/telemetry interfaces.

 * Experience with a scripting or programming language used for test automation or data analysis.

 * Ability to independently resolve complex test problems under general direction and collaborate across engineering disciplines.

 * Interim security clearance is needed to start, therefore you must be a US Citizen.

Desired Skills

 * Experience testing RF sensors or integrating RF stimulus and measurement capabilities into a HWIL environment.

 * Experience with MATLAB/Simulink, Python, C/C++, LabVIEW, or comparable simulation and test tools.

 * Familiarity with real-time operating systems, sensor models, and closed-loop simulation environments.

 * Experience with Ethernet, serial communications, high-speed data acquisition, or FPGA-based test interfaces.

 * Experience with requirements-based verification, regression testing, source control, and test configuration management.

## Description

The Hardware-in-the-Loop (HWIL) Test Engineer will develop and execute tests of integrated RF sensor software, firmware, and hardware in a real-time, closed-loop laboratory environment. Working under general direction, the engineer will independently translate assigned verification objectives into test procedures, configure and integrate test-bed capabilities, analyze results, and resolve complex test and interface issues. This role emphasizes hands-on test execution, troubleshooting, and verification evidence in collaboration with systems, RF, software, firmware, and laboratory engineering teams.

Core Responsibilities

 * Translate assigned system and subsystem requirements into HWIL test cases, procedures, expected results, and verification traceability.

 * Configure test articles, real-time simulations, stimulus interfaces, instrumentation, and data collection for approved test scenarios.

 * Integrate assigned hardware and software interfaces and verify configuration compatibility and test-bed readiness before execution.

 * Execute repeatable closed-loop HWIL tests, monitor system behavior, and record as-run configurations and test conditions.

 * Investigate discrepancies involving timing, synchronization, command and telemetry interfaces, stimulus, and test article responses.

 * Analyze time-correlated test data, compare results with acceptance criteria, and distinguish test-bed issues from potential product defects.

 * Develop and maintain test scripts and data analysis tools that improve repeatability and reduce manual effort.

 * Coordinate defect investigation and retesting with responsible engineering teams and communicate test status, technical risks, and results.

 * Prepare test reports, maintain configuration-controlled procedures and data, and contribute practical improvements to HWIL test methods.