Avionics Test Engineer, Software

Apex Technology, Inc.•Los Angeles, CA

3d•Hybrid

About The Position

We’re looking for an Avionics Test Engineer, Software to join our growing Test team. In this role, you’ll focus on developing automated test infrastructure, scripting, and validation tooling for spacecraft electronics, embedded systems, and integrated avionics platforms. You’ll work closely with electrical, software, RF, and systems engineers to validate flight hardware, expand regression test coverage, and support spacecraft integration and environmental test campaigns. This role is ideal for engineers who enjoy building scalable test systems, automating hardware validation, and debugging complex integrated systems.

Requirements

Bachelor’s degree in Electrical Engineering, Computer Engineering, Aerospace Engineering, Physics, Computer Science, or related field
3+ years of professional experience in aerospace, embedded systems, or electronics testing
Strong Python scripting and test automation experience
Experience working with laboratory instrumentation and automated test systems
Familiarity with avionics hardware and embedded communication protocols: UART, SPI, CAN, I2C
Experience using Linux development environments and version control tools such as GitHub
Strong debugging, analytical, and communication skills
Must be a U.S. Person (U.S. Citizen or Green Card holder) in accordance with ITAR requirements

Nice To Haves

Experience automating RF or communications system testing
Familiarity with SDRs, USRP systems, and software-defined ground systems
Experience with spacecraft, launch vehicle, or flight electronics integration
Familiarity with digital modulation techniques and RF system analysis
Exposure to environmental test campaigns and spacecraft qualification testing
Experience developing scalable automated validation infrastructure
Familiarity with link budgets, S-parameters, and insertion loss analysis

Responsibilities

Develop and execute automated test procedures for avionics subsystems and embedded hardware
Create Python-based tooling for: Automated test execution, Regression testing, Telemetry monitoring, Data parsing and analysis, Hardware control and instrumentation interfaces
Expand automated regression test coverage for new flight software releases
Develop and maintain flatsat and communications rack automation infrastructure
Interface with RF and avionics hardware including: Oscilloscopes, Power supplies, DAQ systems, VNAs, Vector signal analyzers/generators, SDR and USRP-based systems
Support validation of: Radios and transceivers, GNSS systems, RF switches, DVB-S2 and OFDM communication systems
Analyze system performance metrics including: SNR, BER, EVM, PLL behavior, Link margin and insertion loss
Support environmental and qualification test campaigns including: EMI/EMC, Vibration, Thermal cycling, TVAC
Troubleshoot integrated hardware/software issues on flight and flatsat hardware
Collaborate with cross-functional teams on design-for-test and system integration initiatives
Author and maintain Design Verification Plans (DVPs), automated test procedures, and test reports
Work within Linux-based development and test environments using Git-based workflows