Propulsion Test Operations Engineer (Aerospace)

Location: Onsite in Mojave, California, United States

Salary: $110,000–$140,000 per year, plus potential stock options and Mojave differential pay

Company

hirify.global Space develops in-space transportation vehicles and propulsion systems for orbital transport and missions beyond Low Earth Orbit.

What you will do

• Operate propulsion test facilities and serve as a console operator during test campaigns.
• Plan and execute development, qualification, and acceptance tests for liquid rocket propulsion systems.
• Develop test procedures, operational timelines, configuration documentation, automation sequences, and test workflows.
• Configure and verify propulsion hardware, test stands, fluid systems, instrumentation, and data acquisition systems.
• Analyze test performance data and collaborate with design engineers to apply lessons learned to engine, facility, and ground support equipment designs.
• Participate in readiness reviews, hazard assessments, and post-test technical reviews while maintaining strong safety and operational discipline.

Requirements

• Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, or a related engineering discipline.
• At least 1 year of experience designing, operating, maintaining, or commissioning complex mechanical or fluid systems.
• Fundamental understanding of mechanical systems, fluid systems, thermodynamics, or propulsion engineering.
• Ability to interpret engineering drawings, P&IDs, and electrical schematics.
• Strong troubleshooting skills across multidisciplinary mechanical, electrical, software, and fluid systems.
• Must be a U.S. Person or eligible to obtain an export license under applicable U.S. export regulations.

Nice to have

• 3+ years of engineering experience.
• Strong fundamentals in thermal fluid systems.
• Experience with methane, liquid oxygen, liquid methane, or other cryogenic fluid systems.
• Knowledge of pressure transducers, thermocouples, flow meters, load cells, valves, and data acquisition systems.
• Experience performing effectively during high-intensity test operations.

Culture & Benefits

• Full-time employment with medical, vision, and dental coverage.
• Access to a 401(k) retirement plan.
• Potential eligibility for long-term incentives in the form of stock options.
• Focus on personnel safety, operational discipline, reliability, and continuous improvement.

Hiring process

• Application review followed by an introductory phone interview.
• Technical phone interview(s).
• Onsite interview followed by an offer.