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Electrical Test Engineer

Array Labs

Software Engineering, Other Engineering, Quality Assurance

Palo Alto, CA, USA

USD 150k-300k / year + Equity

Posted on Dec 12, 2025

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At Array Labs, we are building the world’s most advanced radar imaging satellites to produce an accurate, continuously updated 3D map of the Earth — providing governments and commercial organizations with critical insights into the physical world.

We design and build our entire radar system in-house, from antenna panels and RF front-ends to digital electronics, calibration systems, and data processing. This vertical integration gives us control over the electrical, thermal, and mechanical constraints that set the limits on radar performance and system reliability.

As an Electrical Test Engineer, you will develop the hardware, procedures, and automated test infrastructure used to validate Array’s radar payloads and satellite electronics. Your work will include designing test fixtures and harnesses, creating FPGA- and software-driven test interfaces, developing board- and system-level test plans, and executing environmental and functional testing across a range of operating conditions. You will collaborate closely with electrical, RF, antenna, mechanical, and manufacturing engineers to diagnose issues, validate performance, and ensure flight readiness. The test systems you build will directly affect hardware reliability, calibration stability, and overall system performance on orbit.

As part of our quickly growing engineering team, you will play a critical role in building the world’s most advanced radar satellite constellation—one that will significantly improve humanity’s ability to rapidly and comprehensively understand our changing planet.

Responsibilities:

Develop test solutions for in-house developed avionics hardware products which will fly to space
Write automation software to interact with units under test, test equipment, instrumentation, and production documentation systems
Bring up and debug new subsystems and testbeds with responsible engineers
Analyze test data and provide recommendations for improvements
Participate in design reviews and provide input on testability
Maintain test equipment and facilities
Improving our testing capabilities by finding ways to catch bugs before they manifest in production and prevent them from happening again

Basic Qualifications:

Proficient working in the lab with oscilloscopes, DMMs, power supplies, and logic analyzers
Proficiency with programming and automation/scripting languages or ability to quickly learn them (i.e. Python, C++, SQL, MATLAB) and navigating Linux terminals and file systems
Familiarity with design tools for schematic capture
Strong technical documentation skills, including report writing and test result documentation and storage
Familiarity with software defined radios
Familiarity working with and debugging complex systems (transceivers, SerDes, FPGAs, power management, etc…)

Preferred Skills and Experience:

Experience analyzing circuits and developing functional test plans
Board rework experience, specifically surface-mount soldering & hot-air rework
Experience operating in a contamination- and ESD-sensitive environments
Embedded software expertise, bare-metal (no-OS), RTOS-based, and Hardware Abstraction Layer (HAL) libraries for ARM-based microcontrollers or SoCs
Experience with system verification and validation, experience in root-cause test failures to ensure issues are understood and develop and implement mitigations as part of a process of continuous improvement
Bring-up and test of RF, power, and electronics subassemblies
Basic knowledge of RF system architecture and impairments or hands-on experience working with RF circuits and RF test equipment
Experience in space systems and environmental testing such as vibration, shock, thermal, burn-in, and TVAC
Understanding of sources of measurement error and how to implement appropriate mitigation strategies

ITAR Requirements:

To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.

Equal Opportunity Employer

Array Labs is an Equal Opportunity Employer. Employment decisions are made on the basis of merit, competence, and job qualifications and will not be influenced in any manner by gender, color, race, ethnicity, national origin, sexual orientation, religion, age, gender identity, veteran status, disability status, marital status, mental or physical disability or any other legally protected status.

Interview Process

We will conduct interviews via Zoom; the typical process takes around 2-4 weeks to complete from start to finish.

Hiring and Compensation Strategy

Our hiring and compensation strategy is simple:

1) find uncommonly good people

2) pay them uncommonly well

You can anticipate competitive pay, with high flexibility between salary and equity-based compensation.

Why you should join Array Labs

Array Labs is launching a constellation of satellites to create the first high-resolution, real-time, three-dimensional model of Earth. Our next-generation satellite technology will offer image quality 60x greater than traditional techniques, profoundly expanding humanity’s ability to understand and respond to events on a global scale.

In forging an affordable, accessible, accurate representation of Earth, our work has the potential to transform the face of dozens of fields, including autonomy, telecommunications, disaster relief, gaming, climate science, defense and construction.

150000 - 300000 USD a year