RF Test Engineer

Apex Technology, Inc.•Los Angeles, CA

2d•$128,000 - $177,000•Hybrid

About The Position

Apex Space is seeking an RF Test Engineer to own system-level verification and performance testing of spacecraft communications hardware, with a primary focus on S-band TT&C and X-band payload systems. This role sits at the intersection of RF design, spacecraft integration, and hardware test, supporting development from early bring-up through spacecraft-level validation and environmental test campaigns. You’ll work closely with RF, avionics, software, AIT, and systems engineering teams to develop scalable RF test infrastructure, execute integrated verification campaigns, debug complex hardware issues, and help ensure our communications systems perform reliably in flight-like environments. This is a highly hands-on role focused on building, operating, and improving RF test systems for rapidly scaling spacecraft programs.

Requirements

B.S. in Electrical Engineering, Physics, or related technical discipline. M.S. preferred.
5+ years of hands-on RF test engineering experience, including experience with aerospace, satellite, or communications hardware.
Strong understanding of RF fundamentals, transmitter/receiver architectures, modulation schemes, and link-level testing.
Hands-on experience with RF measurement equipment including vector signal analyzers, spectrum analyzers, signal generators, noise figure analyzers, and related RF lab equipment.
Experience developing automated test software, scripting, or RF test infrastructure (Python preferred).
Experience supporting hardware bring-up, integration, debug, and environmental testing activities.
Ability to troubleshoot RF hardware and system-level issues down to the board, subsystem, or interface level.
Strong understanding of RF verification methodologies, test execution, and production test practices.
Experience writing clear test procedures, verification plans, and technical reports.
Ability to operate effectively in fast-paced hardware development environments with high ownership and autonomy.
Strong communication and cross-functional collaboration skills.

Nice To Haves

Experience with spacecraft communications systems, TT&C architectures, or payload RF systems.
Familiarity with GEVS, MIL-STD, ECSS, CCSDS, or EMI/EMC testing standards.
Experience supporting spacecraft-level integration and environmental qualification campaigns.
Experience with channel emulators, anechoic chamber testing, or over-the-air RF validation.
Familiarity with production test scaling, automated validation systems, or high-rate hardware manufacturing environments.

Responsibilities

Develop and execute system-level RF test strategies for spacecraft communications hardware and payloads.
Design RF test architectures and signal chain configurations for transmitter and receiver characterization, including loopback, end-to-end, and over-the-air test setups.
Lead RF performance verification activities across development, qualification, and production hardware.
Support spacecraft integration and environmental test campaigns including thermal vacuum, thermal cycling, vibration, EMI/EMC, and full vehicle integration testing.
Partner closely with RF design engineers, avionics teams, and systems engineers to debug anomalies, root cause failures, and drive hardware improvements.
Develop automated test scripts, infrastructure, and data collection tools to improve test efficiency and repeatability.
Coordinate RF test execution alongside AIT, environmental, and production teams to support aggressive spacecraft build schedules.
Define and maintain RF test procedures, verification plans, calibration methods, and test documentation.
Support design reviews, test readiness reviews, qualification campaigns, and customer-facing verification activities.
Specify, integrate, and maintain RF test equipment and lab infrastructure including analyzers, signal generators, channel emulators, antennas, and chamber assets.
Contribute to the development of scalable RF verification frameworks and long-term test infrastructure as Apex production volume grows.

Benefits

Receive equity in Apex
100% company-paid medical, dental, and vision for you and your dependents
$100k life insurance at no cost
15 days vacation, growing to 20+ days annually
10 paid holidays
Competitive 401(k) plan with generous matching
8 weeks paid parental leave
Childcare reimbursement up to $350/day for work-related travel
Daily catered lunch
Unlimited snacks
Monthly office socials, pickleball tournaments, run club, and gatherings
Your dream desk setup and all the tools you need to be your most productive self