Propulsion Test Engineer II (Aerospace)

Location: On-site at Stennis Space Center, Mississippi, United States. The role may require travel to production and launch locations, up to 10%.

Salary: $104,000–$156,000 USD per year.

Company

hirify.global develops Terran R, a heavy-lift orbital launch vehicle designed to deliver customer payloads to orbit.

What you will do

• Design, build, activate, maintain, and upgrade test stands for high-energy components, rocket engines, and launch vehicle stages.
• Design gas, liquid, and cryogenic fluid systems, including P&IDs, analysis, component selection, and fabrication instructions.
• Conduct test operations using GUIs, automation, cameras, and telemetry during flight acceptance, qualification, and development campaigns.
• Prepare, integrate, inspect, repair, and process test articles before and after testing.
• Manage non-conformances, corrective work instructions, requirements, and standardization across test sites.
• Partner with engineers, technicians, welders, and quality inspectors to solve technical problems and improve test processes.

Requirements

• Bachelor’s degree in mechanical engineering, aerospace engineering, or a related field.
• Ability to safely operate common power tools and a valid driver’s license for test-site vehicles.
• Ability to deliver on tight schedules using unconventional and creative solutions.
• Successful candidates must clear a US government-administered background check for on-site work at the government partner location.
• Operations and integration assignments typically require a scheduled morning or evening shift.

Nice to have

• 3D modeling and drafting experience, including GD&T.
• Engineering fundamentals in thermal-fluid systems and structures.
• Hands-on fabrication experience with complex assemblies.
• Experience with high-pressure gas, cryogenic fluids, flammables, hydraulics, and large-scale fluid P&IDs.
• Technical writing or documentation experience.

Culture & Benefits

• Work across propulsion, manufacturing, software, avionics, and corporate teams.
• Competitive salary and equity.
• Generous paid time off and sick leave.
• Parental leave and an annual learning and development stipend.
• Hands-on work contributing directly to Terran R flight readiness.