Senior Propulsion Engineer (Aerospace)

Location: Hybrid, with at least 4 days per week onsite at the GravityWorks factory in Centennial, Colorado; travel up to 20% to the Long Beach factory and vendor sites. U.S. citizenship, lawful permanent residency, protected individual status, or eligibility for required U.S. export authorizations is required.

Base salary: $130,000–$210,000 per year, plus equity and benefits.

Company

hirify.global develops autonomous spacecraft, advanced payloads, mission software, and space-based interceptors for space superiority and missile defense.

What you will do

• Design, analyze, optimize, build, and test propulsion systems and components for advanced satellites and flight vehicles.
• Develop propulsion systems and spacecraft subsystems from concept through flight.
• Review system models, drawings, and piece-part designs.
• Collaborate with structural, mechanical, thermal, and avionics engineers to validate designs against mission requirements.
• Conduct propulsion test campaigns, including hot-fire testing, pressure testing, vehicle-level checkouts, and propellant loading.
• Present technical content to internal and external customers and mentor other engineers.

Requirements

• Bachelor’s degree in Mechanical or Aerospace Engineering.
• 6+ years of professional experience with launch or space vehicles.
• Experience with stage systems, rocket engines, flight valves, or detailed fluid-system architecture and analysis.
• Experience with pressurization-system sizing, water-hammer analysis, pressure budgets, FMECAs, and FDIR architecture.
• Ability to lead multidisciplinary engineering work in a fast-paced environment, with strong written and verbal communication skills.
• Ability to maintain or obtain TS//SCI clearance and meet U.S. space-technology export-control requirements.

Nice to have

• Master’s degree in Mechanical Engineering.
• 5+ years of experience developing and producing space systems.
• 2+ years of project leadership experience.
• Valve or propellant tank design, analysis, and manufacturing experience.
• Experience with mechanical design for propulsion systems, mechanisms, or optical payloads, and familiarity with the full vehicle lifecycle.

Culture & Benefits

• Hybrid work environment with regular onsite work at the Centennial factory.
• Health, dental, vision, HRA/HSA options, PTO, and paid holidays.
• 401(k), parental leave, and equity.
• Work on autonomous spacecraft, space-based interceptors, and missile defense technology.