Thermofluids Engineer II (Aerospace)

Location: On-site in El Segundo, California, United States. The position requires U.S. work authorization and U.S. person status under ITAR requirements.

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 systems, reentry capsules, heat shields, and satellite buses.

What you will do

• Develop active thermal control systems for spacecraft vehicles and payloads.
• Build 0D and 1D fluid network models and interface them with vehicle thermal models.
• Define fluid-system hardware and operational requirements using analysis and testing.
• Support manufacturing and integration of thermal and fluid hardware onto vehicles.
• Collaborate with payload, mechanical, software, and propulsion disciplines to develop vehicle thermal and fluid systems.
• Characterize propulsion thermofluid performance and develop data-processing infrastructure for ground and flight systems.

Requirements

• Bachelor’s degree in Mechanical Engineering or a related discipline, or equivalent professional experience.
• At least 1 year of experience in thermofluids and/or propulsion systems in a manufacturing environment.
• Strong knowledge of heat transfer and incompressible fluid mechanics from first principles.
• Experience with 0D and 1D thermal or fluid networks and modeling tools such as SINDA/FLUINT, ANSYS, or GFSSP.
• Knowledge of thermomechanical hardware including heat exchangers, cold plates, vacuum chambers, pumps, valves, RTDs, and transducers, plus hands-on thermal and TVAC testing.
• Experience with MATLAB or an equivalent tool for data processing and task automation, along with strong written and verbal technical communication skills.

Nice to have

• Three or more years of thermofluids and/or propulsion experience in a manufacturing environment.
• Master’s degree in an engineering discipline.
• Experience with Thermal Desktop, SINDA/FLUINT, propulsion systems, or thruster characterization.
• Ownership of projects and delivery of results in a fast-paced environment.

Culture & Benefits

• Full-time employees receive flexible PTO and 12 paid holidays.
• Company-paid medical, dental, and vision insurance with FSA and employer-matched HSA options.
• Parental leave, family-building and related support programs, and sponsored One Medical memberships.
• 401(k) plan with a 6% immediately vested employer match, incentive equity, and phone reimbursement.
• Relocation support may be available for new hires, alongside meals, team events, and complimentary EV charging.