Avionics Test Engineer, Hardware

Los Angelesfull-timemid

OtherAvionics Test Engineer

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Quick Summary

Overview

Spacecraft represent the most pressing unmet need across the entire aerospace industry. As more launch vehicles come online and the cost to orbit decreases, more companies launching payloads to space continue to emerge.

Key Responsibilities

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:…

Requirements Summary

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…

Technical Tools

python

For the first time in history, this influx of payload companies combined with reduced launch costs has resulted in a massive increase in need for commercial spacecraft platforms, known as satellite buses. These buses hold the payloads of our customers and are flown on launch vehicles.

Apex manufactures these satellite buses at scale using a combination of software, vertical integration, and hardware that is designed for manufacturing. Our spacecraft enable the future of society: ranging from earth observation to communications and more.

We’d love for you to join us on our mission of providing humankind access to the galaxy beyond our planet.

About the Role

~1 min read

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.

Responsibilities

~1 min read

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Develop and execute test procedures for spacecraft avionics subsystems and RF hardware
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Build, configure, and maintain:
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  Flatsats
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  Communications racks
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  Component-level and system-level test setups
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Support hardware integration activities including:
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  Harnessing
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  Fixturing
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  Rack integration
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  Mechanical/electrical interface validation
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Operate laboratory instrumentation including:
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  Oscilloscopes
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  Multimeters
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  Power supplies
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  DAQ systems
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  VNAs
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  Vector signal analyzers/generators
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Execute RF and avionics validation testing for:
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  Antennas
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  Radios and transceivers
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  GNSS systems
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  LNAs and PAs
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  RF switches
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  Couplers and power dividers
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Perform:
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  Near-field antenna testing
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  Cable loss characterization
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  S-parameter measurements
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  Insertion loss analysis
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Support environmental and qualification campaigns including:
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  EMI/EMC
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  Vibration
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  Thermal cycling
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  TVAC
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Support RF testing in thermal vacuum environments, including understanding of corona and multipactor considerations
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Troubleshoot flight hardware and flatsat hardware failures during integration and test
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Execute and document:
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  Functional checkouts
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  Acceptance testing
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  Environmental screening
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  Integrated system validation
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Author and maintain Design Verification Plans (DVPs), procedures, and test documentation
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Collaborate with cross-functional teams on design-for-test initiatives and spacecraft integration campaigns

Requirements

~1 min read

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

Requirements

~1 min read

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

What We Offer

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Apex believes in creating a work environment that you look forward to embracing every day. Our employees love working at Apex, and we want you to love it too. We're a fast-growing startup backed by $200M in Series D funding, and we invest heavily in our people from day one.

What We Offer

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✓Shared upside: Receive equity in Apex, letting you benefit from the work you create

✓Best-in-class healthcare: 100% company-paid medical, dental, and vision for you and your dependents, plus $100k life insurance at no cost

✓Comprehensive PTO package to reset and recharge - starting at 15 days vacation, growing to 20+ days annually, plus 10 paid holidays

✓Competitive 401(k) plan with generous matching - 100% match on first 3%, 50% on next 2%

✓8 weeks paid parental leave plus childcare reimbursement up to $350/day for work-related travel

✓Daily catered lunch and unlimited snacks to keep you fueled throughout the day

✓Vibrant community: Monthly office socials, pickleball tournaments, run club, and gatherings for you and your family

✓Your dream desk setup and all the tools you need to be your most productive self

✓World-class Playa Vista office with the benefit of in-person collaboration with amazing coworkers and flexibility to integrate work and life

✓Real impact opportunity: Work alongside experts from aerospace, new space, and other cutting-edge industries to make a lasting difference

Apex Technology, Inc. is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. Candidates and employees are always evaluated based on merit, qualifications, and performance. We will never discriminate on the basis of race, color, gender, national origin, ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.