Avionics Test Engineer - Spacecraft Hardware & Testbeds

Apex Space, Inc.; Los Angeles, Northern (CA, KY); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Shared equity

Healthcare coverage

PTO and holidays

401(k) plan

Parental leave

Catered lunch and snacks

Office in Playa Vista

Stock options

Impactful work in aerospace

Job summary

Apex Technology, Inc. in Playa Vista, CA is seeking an Avionics Test Engineer, Hardware to lead hands-on test hardware development for spaceflight systems.

You will collaborate across electrical, mechanical, RF, software, and systems teams to define test strategies, troubleshoot flight hardware, and ensure rigorous validation from development through production. You will own test infrastructure, develop fixtures, and support qualification and spacecraft-level testing, driving issues to

Qualifications

• Bachelor’s degree in Electrical Engineering, Aerospace Engineering, Physics, or a related technical field.
• 5+ years of professional experience in aerospace hardware, avionics, electronics, or integrated hardware testing.
• Hands-on experience with laboratory instrumentation and hardware bring-up.
• Experience troubleshooting integrated electrical systems and complex test setups.
• Strong understanding of hardware integration, verification, and validation workflows.
• Ability to read and interpret electrical schematics, wiring diagrams, interface control documents, and technical requirements.
• Strong problem-solving skills and the ability to independently drive technical issues to resolution.
• Excellent written and verbal communication skills.
• Must be a U.S. Person (U.S. Citizen or Green Card holder) in accordance with ITAR requirements.

Responsibilities

• Own the design, build, integration, and maintenance of bus-level and component-level avionics test racks.
• Develop and maintain FlatSats and avionics testbeds.
• Lead hardware integration activities including harnessing, fixturing, rack integration, and mechanical/electrical interface validation.
• Define test architecture and strategies in collaboration with electrical, mechanical, RF, software, and systems engineering teams.
• Troubleshoot flight hardware and test setup failures using laboratory instrumentation including oscilloscopes, multimeters, power supplies, DAQ systems, VNAs, and vector signal analyzers/generators.
• Perform hardware bring-up, interface validation, signal integrity troubleshooting, and end-to-end system checkout.
• Develop test fixtures, breakout boxes, interface electronics, and other custom test hardware as needed.
• Support component qualification, acceptance, regression, and spacecraft-level testing.
• Investigate test failures and hardware anomalies, determine root cause, and work with responsible engineering teams to drive issues to resolution.
• Improve test infrastructure and processes to increase coverage, reliability, repeatability, and throughput.

Education

Bachelor’s degree in Electrical Engineering, Aerospace Engineering, Physics, or a related technical field

Tools

CAN

RS-422/485

UART

SPI

I2C

Ethernet

Job description

Apex Technology, Inc. in Playa Vista, CA is seeking an Avionics Test Engineer, Hardware to lead hands-on test hardware development for spaceflight systems.

You will collaborate across electrical, mechanical, RF, software, and systems teams to define test strategies, troubleshoot flight hardware, and ensure rigorous validation from development through production. You will own test infrastructure, develop fixtures, and support qualification and spacecraft-level testing, driving issues to