Test Equipment Development Engineer (HIL and Test Equipment)

Location: El Segundo, California, United States; onsite bench and factory-floor integration is required. U.S. Citizenship is required, with the ability to obtain and maintain DoD clearance.

Base salary: $110,000–$160,000 per year; additional compensation may include equity, benefits, and potential bonuses.

Company

hirify.global develops defense products powered by Coherent Distributed Networks for warfighters, commercial air operators, and border protection teams.

What you will do

• Own the full lifecycle of interceptor test systems, from requirements analysis and qualification strategy through physical design, hardware build, and LRIP deployment.
• Derive test equipment requirements, establish traceability and coverage, define qualification and production acceptance strategies, and develop product-to-test interface control documents.
• Design mechanical fixtures, electrical interface panels, breakout harnesses, load simulators, signal-conditioning hardware, racks, enclosures, and complete technical data packages.
• Integrate instrumentation, assemble and wire racks and panels, fabricate harnesses, bring up hardware, and debug electrical, mechanical, and software integration issues.
• Develop automated test software and production stations optimized for throughput, repeatability, operator simplicity, error-proofing, and MES-based data traceability.
• Design environmental-test fixtures and instrumentation, support qualification campaigns, analyze anomalies, manage configuration control, and scale, maintain, and improve deployed test systems.

Requirements

• Bachelor’s degree in Electrical Engineering, Mechanical Engineering, Aerospace Engineering, or a related discipline.
• 5+ years of experience designing and building custom test equipment for aerospace, defense, automotive, or high-reliability electromechanical systems.
• Experience translating product requirements into test system architecture.
• Hands-on experience with electrical schematic design, wiring and panel integration, mechanical fixture design, data acquisition systems, and instrumentation integration.
• Experience debugging integrated electromechanical systems.
• Familiarity with root-cause methodologies and failure analysis.
• U.S. Citizenship and the ability to obtain and maintain DoD clearance.

Nice to have

• Experience with missile, UAV, or guided munition systems.
• Experience designing HIL systems for avionics or control systems.
• Experience deploying test stations into LRIP or production environments.
• Familiarity with NI hardware platforms, RF testing, actuator or servo testing, and PCBA-level testing.
• Experience integrating test systems with MES or PLM infrastructure.
• Experience in energetics or explosive-safe environments.

Culture & Benefits

• Medical, dental, and vision benefits are fully paid by the company.
• 401(k) with a 50% company match up to 6% of pay, plus FSA, HSA, and life insurance.
• Free daily lunch, no-meeting Fridays, unlimited PTO, and a casual dress code.
• Competitive base salary, pre-IPO stock option grants, relocation assistance, and potential annual bonuses.
• Work is performed at the bench and on the factory floor during integration and deployment.