Senior Thermal Analysis Engineer (Spacecraft)

Location: On-site in El Segundo, California, United States

Salary: $140,333–$179,314 per year, plus potential stock options and/or long-term cash awards.

Company

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

What you will do

• Develop and maintain integrated thermal analysis models for spacecraft.
• Create tools and systems for thermal model and flight data processing.
• Ensure spacecraft remain within operating and survival limits through passive and active thermal control.
• Collaborate with hardware, production, software, mission operations, and other spacecraft disciplines to improve vehicle systems.
• Plan and execute Thermal Vacuum testing, anchor models to test and flight data, and support vehicle-level testing.
• Work independently, mentor junior engineers, and provide technical peer review.

Requirements

• Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, or a related discipline, or equivalent professional experience.
• At least 3 years of experience developing passive and active thermal control systems.
• Proficiency in Thermal Desktop and SINDA/FLUINT for detailed thermal analysis.
• Experience anchoring thermal models to test or flight data and planning and executing Thermal Vacuum Chamber testing.
• Experience with MATLAB or an equivalent tool for data processing and task automation.
• Familiarity with thermal margins, SMC-S-016 qualification requirements, and interdisciplinary technical communication.

Nice to have

• Master’s degree in a related engineering discipline.
• Experience across the full spacecraft lifecycle, from concept and design through production, integration, testing, and mission operations.
• Experience with thermal design and analysis of reentry systems.
• Experience owning projects and delivering results in a fast-paced environment.

Culture & Benefits

• Regular full-time employment with 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, immediately vested.
• Relocation support may be available for new hires.
• Daily lunch, twice-weekly dinner, team events, and complimentary EV charging.

Hiring process

• Employment eligibility and export-control requirements apply.
• Applicants must be authorized to work in the United States and qualify as a U.S. person for access to export-controlled technology.