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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Avionics Test Engineer, Hardware - **Company:** The Apex - **Location:** Los Angeles, CA, United States - **Experience:** Experienced - **Salary:** $110,000.0 - $165,000.0 - **Contract:** Permanent contract - **Skills:** Board Bringup, Systems Engineering, Communications Protocols, Hardware Design, Python (Programming Language), System Testing, Test Execution Engine, Universal Asynchronous Receiver/Transmitter, Scripting, Coax, System-level Testing, GNSS - **Published:** May 14, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=a66a82d8c37eb842 ## About the Role Do you have experience in Universal asynchronous receiver-transmitter (UART) protocol?, * Bachelor's degree in Electrical Engineering, Aerospace Engineering, Physics, or related field * 3+ years of professional experience in aerospace hardware or electronics testing * Hands-on experience with laboratory instrumentation and hardware bring-up * Familiarity with avionics hardware and embedded communication protocols: + UART + SPI + CAN + I2C * Experience troubleshooting integrated electrical systems and test setups * Strong understanding of hardware integration and validation workflows * Excellent problem-solving and communication skills * Must be a U.S. Person (U.S. Citizen or Green Card holder) in accordance with ITAR requirements, * Experience integrating or testing spacecraft, launch vehicles, or flight electronics * Familiarity with RF communications systems and RF lab equipment * Experience with: + Harnessing + Fixturing + Environmental testing + Vibration testing * Familiarity with coaxial cable selection and RF interconnect characterization * Exposure to fast-paced aerospace production or integration environments * Experience designing PCBs or supporting hardware prototyping * Background conducting sensor functional tests, leak checks, or avionics channelization * Basic Python or scripting experience for test support and automation ## Description We're looking for a Hardware Avionics Test Engineer to join our growing Test team. In this role, you'll focus on hardware integration and testing, system-level and component-level test rack planning and buildup, avionics validation, and automated spacecraft test execution. You'll work closely with electrical, mechanical, RF, and systems engineers to build and operate integrated spacecraft test environments, execute qualification campaigns, and troubleshoot flight hardware throughout development and integration. This role is highly hands-on and ideal for engineers who enjoy working directly with hardware, integration setups, and environmental testing., * Develop and execute test procedures for spacecraft avionics subsystems and RF hardware * Build, configure, and maintain: + Flatsats + Communications racks + Component-level and system-level test setups * Support hardware integration activities including: + Harnessing + Fixturing + Rack integration + Mechanical/electrical interface validation * Operate laboratory instrumentation including: + Oscilloscopes + Multimeters + Power supplies + DAQ systems + VNAs + Vector signal analyzers/generators * Execute RF and avionics validation testing for: + Antennas + Radios and transceivers + GNSS systems + LNAs and PAs + RF switches + Couplers and power dividers * Perform: + Near-field antenna testing + Cable loss characterization + S-parameter measurements + Insertion loss analysis * Support environmental and qualification campaigns including: + EMI/EMC + Vibration + Thermal cycling + TVAC * Support RF testing in thermal vacuum environments, including understanding of corona and multipactor considerations * Troubleshoot flight hardware and flatsat hardware failures during integration and test * Execute and document: + Functional checkouts + Acceptance testing + Environmental screening + Integrated system validation * Author and maintain Design Verification Plans (DVPs), procedures, and test documentation * Collaborate with cross-functional teams on design-for-test initiatives and spacecraft integration campaigns ## Related Videos - [More efficient software for more efficient microchips](https://www.wearedevelopers.com/videos/1164-more-efficient-software-for-more-efficient-microchips) - [JavaScript? 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