Propulsion Engineer II - Hardware and Bus Systems (Aerospace)

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

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

• Own and maintain propulsion subsystem technical baselines, P&IDs, system architecture, and related documentation.
• Design, analyze, build, and test spacecraft propulsion flight hardware, fluid-system components, and satellite bus propulsion systems.
• Support propulsion system upgrades for operational vehicles and define requirements, architectures, roadmaps, and milestones for future vehicles.
• Generate propulsion performance analyses, propellant budgets, pressure ladders, component sizing, and structural and thermal limit assessments for cross-disciplinary teams.
• Develop Python scripts and spreadsheet tools for recurring analysis and test-data review workflows.
• Support mechanical design, FEA, subsystem testing, in-flight operations, nonconformance disposition, and anomaly investigations.

Requirements

• Bachelor’s degree in Aerospace Engineering, Mechanical Engineering, or a related discipline, or equivalent professional experience.
• 3+ years of hands-on propulsion or fluid-systems design, build, and/or test experience for spacecraft or launch vehicles.
• Working knowledge of pressurized components, tubing, fittings, seals, valves, instrumentation, and P&IDs.
• Proficiency with CAD tools such as CATIA, SolidWorks, or NX, and PLM software.
• Experience authoring or executing ground-test or flight operational procedures and driving technical tasks to resolution.
• Must work on-site in El Segundo, California, and must be authorized to work in the United States as a U.S. person for access to export-controlled technology.

Nice to have

• Experience with satellite bus propulsion architectures, including monopropellant, bipropellant, or cold-gas systems.
• Python or spreadsheet automation for propulsion analysis and data review.
• Structural analysis using ANSYS, NASTRAN, or equivalent FEA tools.
• Experience with GD&T, spacecraft-grade propellants, 1D fluid modeling, test campaigns, launch sites, or in-flight operations.
• Strong technical communication skills for work instructions, engineering specifications, and engineering memos.

Culture & Benefits

• Regular full-time employment with flexible PTO 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, incentive equity, and cell phone reimbursement.
• Relocation support may be available for new hires, along with an on-site kitchen, team events, and complimentary EV charging.