We are looking for a Software Test Engineer to own the validation of our complex radar payload. In this role, you will bridge the gap between hardware and software, writing the code that proves our system works. You will develop specialized firmware to exercise our FPGAs, RF front-ends, and antenna arrays, while simultaneously building high-level Python automation to orchestrate test campaigns. You will work in a hands-on lab environment, pushing our hardware to its limits to ensure it survives and performs in the extreme conditions of space.
Responsibilities
Design and implement automated test frameworks in Python to characterize the performance of radar, RF, and antenna subsystems.
Write firmware in C/C++ to stimulate hardware interfaces, inject test patterns into FPGAs, and control RF transceivers during validation.
Develop Hardware-in-the-Loop (HIL) test setups that integrate flight software, ground station commands, and simulated environmental data.
Automate the control of laboratory test equipment (Signal Generators, Spectrum Analyzers, Network Analyzers, Oscilloscopes) to capture and analyze system performance data.
Collaborate with FPGA and RF engineers to define test requirements and debug complex hardware-software integration issues.
Analyze test data to identify trends, performance regressions, and potential hardware failures before they reach orbit.
Maintain and upgrade continuous integration (CI) pipelines that run automated tests on physical hardware targets.
Basic Qualifications
Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, or a related field.
5+ years of experience in test engineering, embedded software development, or hardware validation.
Strong proficiency in C/C++ for embedded targets (writing test firmware, drivers, or diagnostic tools).
Expertise in Python for test automation, data analysis, and instrument control (e.g., PyVISA, NumPy, Pandas).
Familiarity with standard communication protocols such as SPI, I2C, UART, Ethernet, and PCIe.
Hands-on experience with lab equipment (Oscilloscopes, VNAs, Spectrum Analyzers) and debugging hardware down to the component level.
Excellent problem-solving skills and the ability to work independently in a fast-paced, startup environment.
Preferred Skills & Experience
Master’s degree in an engineering discipline.
Experience with radar systems, phased array antennas, or satellite communications.
Experience with Xilinx Zynq/MPSoC platforms and Petalinux/Yocto build systems.
Familiarity with continuous integration tools (Jenkins, GitLab CI) applied to hardware testing.
Background in developing automated drivers for test equipment (Keysight, Rohde & Schwarz, Anritsu).
Compensation & Benefits
Our hiring and compensation strategy is simple: We offer competitive salaries and meaningful equity. We want everyone here to have real ownership in what we're building.
- Medical, dental, and vision insurance (including a fully employer-paid medical plan)
- Paid parental leave (12 weeks / 6 weeks)
- 19 paid vacation days, 10 sick days, 11 company holidays
- 401(k) with employer match (100% match up to 3%, 50% match up to 5%)
- Commuter expenses (parking & transit)
- Daily lunch stipend; Audible subscription; Claude Pro access; relocation support
- Hybrid work options & flexibility
We reserve the right to modify base pay and other compensation components. More details about our benefits are available to candidates during the hiring process.
Interview Process
We will conduct interviews via Google Meet, with the potential for an onsite visit to our office in Redwood City, CA. The typical interview process takes around 3 to 5 weeks.
Why Join Array
At Array Labs, deep technical expertise meets relentless impact. We prioritize curiosity over hierarchy and bold ideas over incremental gains. Our world-class team across hardware engineering, software, and aerospace works collaboratively to push boundaries.
Join industry-leading experts to build the future of radar and deliver unprecedented insights into the physical world.
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 without regard to gender, color, race, ethnicity, national origin, sexual orientation, religion, age, gender identity, veteran status, disability status, marital status, or any other legally protected status.
If you require a reasonable accommodation during the application or interview process, please contact us at [email protected].
Skills Required
- Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or related field.
- 5+ years of experience in test engineering, embedded software development, or hardware validation.
- Proficiency in C/C++ for embedded targets (firmware, drivers, diagnostics).
- Expertise in Python for test automation, data analysis, and instrument control (e.g., PyVISA, NumPy, Pandas).
- Familiarity with communication protocols: SPI, I2C, UART, Ethernet, PCIe.
- Hands-on experience with lab equipment (oscilloscopes, VNAs, spectrum analyzers, signal generators) and component-level hardware debugging.
- Ability to work independently in a fast-paced startup; strong problem-solving skills.
- ITAR eligibility: must be U.S. citizen, lawful permanent resident, protected individual, or eligible for required Department of State authorizations.
- Master's degree in an engineering discipline.
- Experience with radar systems, phased array antennas, or satellite communications.
- Experience with Xilinx Zynq/MPSoC platforms and PetaLinux/Yocto build systems.
- Familiarity with CI tools (Jenkins, GitLab CI) applied to hardware testing.
- Background developing automated drivers for test equipment (Keysight, Rohde & Schwarz, Anritsu).
What We Do
High quality 3D imagery is the key to understanding the world around us and is critically important to a host of traditional and emerging industries. However, current methods of supplying this data are slow, expensive, or low-quality. Array Labs is developing next-generation earth observation satellites which will deliver a complete perspective of the earth in near-real time.
