Hardware Test Engineer

Who you are

• 5+ years of hands-on experience with complex electromechanical systems, including 2+ years in test, testbed, or test-infrastructure development
• Background in electrical engineering, embedded software, mechanical engineering, or industrial controls
• Experience designing hardware — electrical, mechanical, or integrated systems — that others build and use
• Ability to read and work from electrical schematics, block diagrams, and production drawings
• Strong hands-on debugging skills across hardware and software interfaces, with standard test equipment (multimeters, oscilloscopes)
• Scripting or programming ability (Python, Bash, or similar)
• Understanding of electronics fundamentals and common communication interfaces (e.g., UART, SPI, I2C, CAN, Ethernet)
• Excellent communication and teamwork skills, comfortable in a fast-paced environment
• B.S. in an engineering discipline or equivalent hands-on experience
• Comfort in a Linux development environment
• Experience with HITL testbeds, lab automation, or large-scale test infrastructure
• Electrical CAD experience (Altium preferred) or harness design tools
• Mechanical CAD experience (SolidWorks preferred) for rack and fixture design
• Experience with industrial automation or rack-based electronics, networking, and power distribution
• Aerospace or other high-reliability industry experience
• We encourage you to apply, even if you don't check all the boxes, and we look forward to reviewing your application!
• Applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (green card holder), (iii) refugee under 8 U.S.C. § 1157
• Or (iv) asylee under 8 U.S.C. § 1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency

What the job involves

• Muon seeks a Hardware Test Engineer to join our Testbeds & EGSE team — the group that builds the Hardware-In-The-Loop (HITL) testbeds behind every Muon mission and the electrical ground support equipment (EGSE) used to interface with our satellites during assembly, integration, and test
• In this role you'll lead the design of our future testbed infrastructure and next generation of EGSE, while staying hands-on in the build and bring-up of the testbeds our missions depend on today
• This team sits at the crossroads of disciplines, and so can you: engineers with electrical, embedded software, mechanical, or industrial controls backgrounds all thrive here
• You'll work directly with the electrical missions team to define each testbed's parallel of the mission's flight hardware, and see your designs go from concept to daily use across the company
• Lead the design of future HITL testbed infrastructure: architecture, form factor, non-satellite hardware, and external interfaces
• Lead the design of next-generation EGSE used to power, command, and monitor satellites during integration and test
• Work with the electrical missions team to define each testbed's parallel of the mission's flight hardware, translating block diagrams, schematics, and drawings into testbed designs
• Build, integrate, and bring up testbed hardware alongside the team, and support the fleet in daily operation
• Generate and maintain testbed architecture diagrams, interface definitions, and design documentation
• Debug hardware and interface issues across testbeds to root cause, working with electrical, software, and systems engineers
• Coordinate with supply chain, production, and facilities teams on testbed inventory, module builds, and support resources (power, network)
• Guide junior engineers and technicians on the team, and drive testbed designs that scale with an increasingly capable satellite fleet

Benefits

• 100% health, dental, and vision coverage for employees; 50% coverage for dependents (Concierge Medical offered through One Medical where available)
• Parental leave for primary and secondary caregivers
• Generous time off policy
• 401(k) plan through Betterment and equity management through Carta
• Fully stocked kitchen at our HQ and we cater lunch 3 days per week
• Dog-friendly office