Apex - Spacecraft Manufacturing · 5 hours ago
Senior Propulsion Engineer
Apex is a fast-growing startup in spacecraft manufacturing that focuses on providing access to space. They are seeking a seasoned Electric Propulsion Engineer to drive the development of propulsion systems for their spacecraft bus, utilizing clean-sheet design and ensuring optimal performance through integration and testing.
AerospaceCommercialManufacturing
Responsibilities
Design electric propulsion system architecture, develop product specifications, and maintain Technical Performance Metrics (TPMs) including power and mass budgets
Define placement and integration of an electric propulsion system architecture
Documenting and maintaining detailed work instructions, process flow diagrams, assembly, integration, and test (AI&T) procedures for manufacturing operations
Establish engine degradation model, perform filtration analysis, and demonstrate compliance to dedicated propulsion budgets (leak, power, thermal, etc.)
Design high pressure fluidic systems, fluid system instrumentation, and control components (i.e. tanks, regulators, pressure transducers, thermocouples, solenoid valves, etc.)
Develop qualification and acceptance test plans and support said tests per approved procedures. Testing includes environmental testing such as vibration, shock, and TVAC
Collaborate with cross-functional teams to integrate propulsion systems with other subsystems (e.g., electrical, thermal, structure)
Troubleshoot anomalies that arise during manufacturing, lead investigation efforts, and ensure design for manufacturability (DFM) approaches are followed during all stages of development
Directly interface with customer/supplier relationships, conduct analyses, and provide support (either virtual or onsite) as necessary
Decompose SSCMAN 91-710 document into Requirements Verification Matrix (RVM), tailor requirements as necessary, and conduct Process Hazard Analyses (PHAs) for internal personnel and facility safety
Conduct trade studies for electric propulsion components and suppliers, work with supply chain on quotation process, and manage vendors in the supply chain
Contribute to proposals and business development efforts as needed
Qualification
Required
U.S. Person status is required as this position needs to access export controlled data
Bachelor's degree in mechanical, electric propulsion, or other aerospace-related engineering discipline
6+ years of propulsion design and test experience
Experience with handling and testing pressurized systems
Strong knowledge of propulsion, spacecraft systems, and range safety (SSCMAN 91-710) requirements
Ability to decompose supplier ICDs and communicate requirements to responsible engineering disciplines
Demonstrated history of designing fluidic systems, fluid system instrumentation, and control components (i.e. tanks, regulators, pressure transducers, thermocouples, solenoid valves, etc.)
Experience with CAD software (NX, SolidWorks)
Working knowledge for manufacturing in a clean environment and following AS9100 protocols
Preferred
Master's or Ph.D in mechanical, electric propulsion, or other aerospace-related engineering discipline
Experience operating leak, burst, proof test facilities
Experience leading an electric propulsion hot-fire test campaign including (high-voltage power and fluid delivery systems for ground test, data acquisition systems, thrust stands, and plasma diagnostics, are a plus)
Experience with electric propulsion operations in space
Benefits
Shared upside: Receive equity in Apex, letting you benefit from the work you create
Best-in-class healthcare: 100% company-paid medical, dental, and vision for you and your dependents, plus $100k life insurance at no cost
Comprehensive PTO package to reset and recharge - starting at 15 days vacation, growing to 20+ days annually, plus 10 paid holidays
Competitive 401(k) plan with generous matching - 100% match on first 3%, 50% on next 2%
8 weeks paid parental leave plus childcare reimbursement up to $350/day for work-related travel
Daily catered lunch and unlimited snacks to keep you fueled throughout the day
Vibrant community: Monthly office BBQs, pickleball tournaments, run club, and social gatherings for you and your family
Your dream desk setup and all the tools you need to be your most productive self
World-class Playa Vista office with EV chargers, with the benefit of in-person collaboration with amazing coworkers and flexibility to integrate work and life
Real impact opportunity: Work alongside experts from aerospace, new space, and other cutting-edge industries to make a lasting difference
Company
Apex - Spacecraft Manufacturing
Apex was founded to solve one of the space industry’s biggest challenges: the satellite production bottleneck.
Funding
Current Stage
Late StageTotal Funding
$522MKey Investors
Interlagos CapitalAndreessen Horowitz
2025-09-12Series D· $200M
2025-04-29Series C· $200M
2024-06-11Series B· $95M
Recent News
Business Insider
2025-12-25
Business - Dhaka Tribune
2025-12-15
Company data provided by crunchbase