We are seeking a Senior Mechanical Engineer to join the Valves & Fluid Systems team of a next-generation space launch provider. In this role, you'll lead the design, development, and qualification of fluid system components that are critical to launch success. This includes high-pressure valves, actuators, cryogenic plumbing, and quick-disconnects-owning designs from concept through flight.
This is a high-accountability, hands-on engineering position where you'll collaborate with technicians, test engineers, and manufacturing teams to ensure hardware is designed, tested, and delivered on time. You'll also play a key role in mentoring junior engineers, shaping team standards, and driving continuous improvement.
Key Responsibilities
Own the mechanical design for valves, actuators, and other fluid system hardware
Perform structural, thermal, and tolerance analyses to validate designs
Lead hardware development from prototyping to environmental and hot-fire testing
Drive root cause investigations and corrective actions for test or production issues
Collaborate cross-functionally with propulsion, test, and structures teams for seamless integration
Deliver complete engineering documentation to support manufacturing and test operations
Provide mentorship and guidance to junior engineers while contributing to design best practices
Compensation
Base salary range: $130,000 - $160,000 per year (Bay Area market range; excludes bonus and benefits)
Minimum Qualifications
Bachelor's degree in Mechanical, Aerospace, or related engineering field
4+ years of experience in mechanical engineering across aerospace, defense, or other high-reliability industries
Proven track record owning hardware from concept through testing and production
Proficiency in CAD (NX, SolidWorks, etc.) with strong GD&T fundamentals
Strong background in FEA, structural, and thermal simulations
Deep understanding of manufacturing processes (machining, welding, brazing, heat treating)
Hands-on builder comfortable with assembly, debugging, and technician collaboration
Team-first mindset with the ability to self-direct, take feedback, and adapt as needed
Preferred Skills / Multipliers
Experience designing and qualifying high-pressure (6000+ psi) or cryogenic systems (LOX, RP-1, etc.)
Background in complex mechanical mechanisms (actuators, safe & arm devices, arm/fire devices)
Experience managing Tech Data Packages, compliance plans, and program reviews (PDR/CDR/TRR)
Familiarity with ASME, NASA, or MIL standards
Startup/early-stage company experience in fast-paced environments
Track record of leading failure investigations and implementing corrective actions
Demonstrated mentorship of engineers and leadership of cross-disciplinary efforts
Other Requirements
Must be a U.S. Person under ITAR/EAR (citizen, permanent resident, refugee, or asylee) or eligible for licensing
Subject to background checks and, if applicable, government contract clearance
San Francisco applicants will be considered consistent with the Fair Chance Ordinance