Thermal Hardware and Test Engineer II (Aerospace)

Location: On-site in El Segundo, California, United States. Candidates must be U.S. persons authorized to work in the United States and permitted to access export-controlled technology.

Salary: $119,543–$152,749 per year, plus potential stock options and/or long-term cash awards.

Company

hirify.global develops commercial space infrastructure, including in-orbit pharmaceutical processing payloads, reentry capsules, heat shields, and satellite buses.

What you will do

• Drive end-to-end development of thermal hardware and test infrastructure from concept and design through fabrication, integration, validation, and maintenance.
• Develop active and passive thermal control systems for payloads and spacecraft, including heat pipes, pumped fluid loops, and thermal switches.
• Design and assemble fluid, thermal, mechanical, and electrical test rigs, fixtures, and supporting infrastructure.
• Implement instrumentation and data acquisition solutions using sensors, transducers, actuators, PLCs, and embedded controllers.
• Plan and execute component-level thermal vacuum acceptance and qualification testing, including data processing and reporting.
• Diagnose anomalies, resolve hardware issues, and improve equipment reliability to more than 99% uptime.

Requirements

• B.S. in Mechanical Engineering or a related discipline, or equivalent professional experience.
• 3+ years of experience applying engineering principles to thermal design, testing, and fabrication in a manufacturing environment.
• Proficiency in detailed thermal analysis with Thermal Desktop and SINDA/FLUINT, plus experience anchoring thermal models to test or flight data.
• Experience planning and executing Thermal Vacuum Chamber testing and familiarity with thermal margins and SMC-S-016 qualification requirements.
• Experience with MATLAB or an equivalent tool for data processing and task automation.
• U.S. person status and authorization to work in the United States are required due to ITAR and export-control requirements.

Nice to have

• Hands-on fabrication skills in basic machining, welding, or rapid prototyping.
• Experience with ANSYS or additional thermal analysis tools.
• Formal project management experience in a fast-paced environment.

Culture & Benefits

• Full-time employees receive flexible paid time off and 12 paid holidays.
• Company-paid medical, dental, and vision insurance, with FSA and employer-matched HSA options.
• Parental leave, family-building support, wellness reimbursement, and sponsored One Medical memberships.
• 401(k) plan with a 6% employer match, incentive equity, and cell phone reimbursement.
• Relocation support may be available for new hires.
• Daily lunch, twice-weekly dinner, team events, and complimentary EV charging.