# Hardware in the Loop Test Engineer **Company**: Leidos **Location**: Huntsville, AL **Work arrangement**: onsite **Experience**: senior **Job type**: full-time **Salary**: $69,550.00 - $125,725.00 **Category**: Engineering **Industry**: Defence & Intelligence **Apply**: https://leidos.wd5.myworkdayjobs.com/en-US/External/job/Huntsville-AL/Hardware-in-the-Loop-Test-Engineer_R-00193620?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply **Canonical**: https://yubhub.co/jobs/job_205d5773-f7e ## Description Leidos Defense is seeking a talented Hardware in the Loop Test Engineer to support Hypersonics programs. The selected candidate will support integration, verification, validation, and field-testing activities for advanced air and missile defense systems. ### Primary Responsibilities - Contribute to the electrical engineering development, integration, and execution of Hardware-in-the-Loop (HWIL) test systems supporting avionics, embedded systems, electronic hardware, and associated software. - Develop HWIL electrical architectures that provide representative interfaces between the system under test and the simulated environment. - Design, integrate, and troubleshoot electrical interfaces including analog, digital, discrete, serial, Ethernet, power, and other system-specific interfaces. - Develop and integrate signal conditioning, switching, loads, power supplies, signal generation, data acquisition, instrumentation, and other HWIL interface hardware. - Interpret system requirements, electrical schematics, wiring diagrams, interface control documents, and equipment specifications to develop effective HWIL solutions. - Develop and maintain HWIL interface designs, wiring, cable assemblies, electrical drawings, interface documentation, and configuration information. - Select and configure laboratory and test equipment including oscilloscopes, digital multimeters, power supplies, electronic loads, signal generators, data acquisition systems, and related instrumentation. - Support integration of real-time simulation platforms with electronic hardware and systems under test. - Develop test cases and scenarios that exercise nominal, off-nominal, fault, startup, shutdown, degraded, and boundary operating conditions. - Develop and implement automated test procedures and supporting software using Python, C/C++, C#, LabVIEW, MATLAB/Simulink, or similar tools. - Integrate embedded software, firmware, and electronic hardware into HWIL environments to support system-level verification and validation. - Analyze test data and instrumentation results to identify anomalies, characterize system performance, and support verification activities. - Develop and maintain test requirements, procedures, test reports, electrical documentation, configuration records, and requirements traceability. - Support regression testing and integration of HWIL test activities into software development and CI/CD environments. - Maintain configuration control of HWIL hardware, electrical interfaces, instrumentation, test software, simulation models, and associated test artifacts. - Collaborate with electrical, software, firmware, systems, mechanical, manufacturing, and program engineering organizations to resolve technical issues and improve product performance. - Participate in design reviews, test readiness reviews, technical interchange meetings, customer meetings, and supplier discussions. - Provide technical guidance and mentorship to less-experienced engineers supporting HWIL activities. - Support technical planning, task estimation, scheduling, equipment selection, and execution of HWIL test activities. - Identify opportunities to improve HWIL test efficiency, repeatability, maintainability, safety, and cost effectiveness. ### Basic Qualifications - Bachelor's degree in Electrical Engineering, Computer Engineering, or a related engineering discipline. - 2+ years of experience in electrical engineering, test engineering, HWIL/HIL development, avionics, embedded systems, or a related technical discipline. - Demonstrated experience developing, integrating, or troubleshooting Hardware-in-the-Loop (HWIL), Software-in-the-Loop (SIL), automated test, or comparable verification systems. - Ability to read and interpret electrical schematics, wiring diagrams, interface control documents, electrical specifications, and related engineering documentation. - Experience integrating electronic hardware, instrumentation, data acquisition, signal conditioning, power systems, and automated test equipment. - Experience using laboratory test equipment such as oscilloscopes, digital multimeters, power supplies, signal generators, electronic loads, and data acquisition equipment. - Familiarity with communication protocols such as Ethernet, CAN, SPI, I2C, RS-232/422/485, ARINC-429, MIL-STD-1553, or similar. - Experience troubleshooting complex electrical and hardware/software integration issues. - Experience with verification and validation, automated testing, regression testing, or formal test methodologies. - Strong analytical, troubleshooting, and problem-solving skills. - Strong written and verbal communication skills. - Ability to work effectively across electrical, software, firmware, systems, and other engineering disciplines. - Must be able to work full-time in Huntsville, AL. - Must be a U.S. Citizen and eligible to obtain and maintain a Secret security clearance. ### Preferred Qualifications - Direct experience developing HWIL systems for aerospace, defense, avionics, or other safety-critical embedded systems. - Experience designing custom HWIL interface electronics, signal-conditioning circuits, I/O architectures, switching systems, or load banks. - Experience with NI PXI, cRIO, DAQ, LabVIEW, TestStand, or similar test platforms. - Experience with MATLAB/Simulink and real-time simulation environments. - Experience developing reusable HWIL electrical architectures and test infrastructure. - Experience integrating embedded software and firmware into hardware verification environments. - Experience with systems engineering, requirements traceability, verification planning, and formal test documentation. - Experience supporting DoD programs or working within classified environments. - Existing Secret security clearance. - Experience representing engineering organizations during customer reviews, design reviews, technical interchange meetings, or supplier engagements. ## Skills ### Required - Electrical Engineering - Computer Engineering - HWIL development - avionics - embedded systems - Python - C/C++ - C# - LabVIEW - MATLAB/Simulink - Ethernet - CAN - SPI - I2C - RS-232/422/485 - ARINC-429 - MIL-STD-1553 ### Nice to have - NI PXI - cRIO - DAQ - TestStand - real-time simulation environments - systems engineering - requirements traceability - verification planning - formal test documentation --- Source: [Apply at leidos.wd5.myworkdayjobs.com](https://leidos.wd5.myworkdayjobs.com/en-US/External/job/Huntsville-AL/Hardware-in-the-Loop-Test-Engineer_R-00193620?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)