25 open listings
Roles posted by organizations here, alongside roles we found on employers’ own careers sites. Crawled roles say so on the card and send you to the employer to apply. Only show organizations on Career App
Apply for Propulsion Design Engineer at Lynk Global on their site
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Propulsion Design Engineer
Lynk Global
Chantilly, VA
This role supports the design and optimization of Hall Effect Thrusters and other propulsion components for Lynk's satellite constellation. It suits engineers with electric propulsion experience who can perform detailed simulations and CAD work to advance satellite propulsion systems.
Listed on Lynk Global’s careers site · Apply there ↗
Principal Scientist, Upstream Process Development
Merck
Full-time · Rahway, NJ · $173,200 – $272,600
A leadership role in biopharmaceutical process development where you'll direct the creation of cell culture manufacturing processes from early development through commercial launch. This suits experienced bioprocess scientists ready to mentor teams and drive innovation across a pipeline of diverse therapeutic programs.
Listed on Merck’s careers site · Apply there ↗
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Senior Turbomachinery Engineer
Impulse Space
Redondo Beach
You will develop high-performance turbomachinery systems through design, analysis, build, and test cycles in a collaborative aerospace engineering environment. This role suits experienced engineers who want hands-on technical leadership in propulsion systems at an agile company.
Listed on Impulse Space’s careers site · Apply there ↗
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Life Support Systems (LSS) Thermal Engineer
Axiom Space
Full-time · Houston, TX
This role develops and delivers thermal control systems for commercial space stations, managing the complete lifecycle from design through on-orbit operation. It suits experienced thermal engineers with deep knowledge of heat transfer, fluid mechanics, and spacecraft environments who want to own critical hardware for a crewed orbital facility.
Computational Fluid Dynamics (CFD)ThermodynamicsFluid MechanicsCreoFinite Element Analysis (FEA)ANSYS Fluent
Listed on Axiom Space’s careers site · Apply there ↗
Apply for Senior Valves & Actuators Engineer at Stoke Space on their site
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Senior Valves & Actuators Engineer
Stoke Space
Full-time · Kent, WA · $151,305 – $327,810
Design, develop, and qualify valve and actuator components for a commercial space launch vehicle, owning the complete lifecycle from requirements through testing and production. This role suits experienced aerospace or industrial valve engineers who thrive in fast-paced environments and want hands-on involvement from concept through manufacturing.
Computational Fluid Dynamics (CFD)Finite Element Analysis (FEA)Microsoft ExcelSiemens NXGeometric Dimensioning and Tolerancing (GD&T)MATLAB
Listed on Stoke Space’s careers site · Apply there ↗
RS
Manager, Propulsion Analysis
Relativity Space
Long Beach, CA · $160,000 – $240,000
You'll lead a team of propulsion analysts responsible for thermal, structural, and durability analysis of rocket engines at a company building orbital launch vehicles. This role suits experienced engineers who thrive managing technical teams through complex design-and-manufacturing challenges while maintaining engineering rigor at scale.
Computational Fluid Dynamics (CFD)Structural AnalysisFinite Element Analysis (FEA)Computer-Aided Design
Listed on Relativity Space’s careers site · Apply there ↗
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Senior Valve Design Engineer I
CesiumAstro
Full-time · El Segundo, CA · $118,000 – $142,000
A hands-on design role focused on pneumo-hydraulic valve systems for aerospace applications, reporting to leadership and mentoring other engineers. Suited for someone with CAD and simulation expertise who wants to drive technical direction in a startup environment.
Listed on CesiumAstro’s careers site · Apply there ↗
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Staff Engineer, Thermal - Air Vehicle (R4856)
Shield AI
Full-time · Seattle, WA · $170,000 – $230,000
A thermal engineering leadership role designing and solving complex heat management challenges on advanced aircraft development. Best for someone who can tackle sophisticated engineering problems independently while guiding other engineers and translating technical work across disciplines.
Listed on Shield AI’s careers site · Apply there ↗
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Mechanical Engineer III - Design
Voyager
Reno, NV · $108,800 – $155,300
This role involves designing and analyzing mechanical systems for advanced aerospace and defense applications, including rocket motors, actuators, and propulsion components. It suits engineers with 4-7 years of experience who are comfortable with complex structural analysis, CAD modeling, and cross-functional collaboration in a security-cleared environment.
Computational Fluid Dynamics (CFD)3D ModelingFinite Element Analysis (FEA)WeldingGeometric Dimensioning and Tolerancing (GD&T)
Listed on Voyager’s careers site · Apply there ↗
Principal Scientist, Upstream Development
Merck
Full-time · Rahway, NJ · $173,200 – $272,600
A senior scientist position developing cell culture manufacturing processes for biologics in clinical and commercial stages. This role suits experienced bioprocess engineers or biochemists who can lead technical strategy, mentor teams, and drive innovation in upstream development while managing complex cross-functional projects.
Listed on Merck’s careers site · Apply there ↗
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Thermal Fluids Section Manager
Axiom Space
Houston, TX
This role leads a thermal analysis and computational fluid dynamics team at a commercial spaceflight company, managing personnel development, technical standards, and analysis delivery across multiple space programs. It suits an experienced thermal or mechanical engineer with team leadership experience who wants to grow technical capabilities in a fast-moving aerospace environment.
Listed on Axiom Space’s careers site · Apply there ↗
RS
Senior Hardware Development Engineer
Relativity Space
Long Beach, CA · $132,000 – $198,000
This role develops manufacturing processes and hardware designs for advanced rocket engines, requiring deep technical knowledge of aerospace engineering and hands-on involvement from design through production. It suits experienced engineers who want to own the complete lifecycle of high-performance propulsion systems in a fast-growing company.
Listed on Relativity Space’s careers site · Apply there ↗
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Mechanical Engineer III - Test
Voyager
Reno, NV · $108,800 – $155,300
A Mechanical Engineer III focused on testing and validation of complex aerospace and defense systems, including rocket motors and thermal components. This role suits experienced engineers with strong analytical skills who can independently manage test planning, data analysis, and technical design across mechanical and systems engineering disciplines.
Computational Fluid Dynamics (CFD)ANSYSCATIASolidWorksSiemens NXGeometric Dimensioning and Tolerancing (GD&T)
Listed on Voyager’s careers site · Apply there ↗
Associate Principal Scientist, Upstream Development
Merck
Full-time · Rahway, NJ · $142,400 – $224,100
This role leads the development of mammalian cell culture manufacturing processes for biopharmaceutical drug candidates, from early clinical through commercial launch. It suits scientists with substantial hands-on upstream bioprocessing experience who can direct complex process optimization projects, mentor junior researchers, and collaborate across functions while maintaining strong external scientific visibility.
Listed on Merck’s careers site · Apply there ↗
RS
Hardware Development Engineer II
Relativity Space
Long Beach, CA · $104,000 – $156,000
A hardware development engineer focused on transforming propulsion engine designs into manufacturable, flight-ready systems for the Terran R rocket. This role suits engineers with aerospace manufacturing expertise who want hands-on involvement in engine development, from design review through production qualification and test execution.
Listed on Relativity Space’s careers site · Apply there ↗
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Mechanical Engineer V - Test
Voyager
Full-time · Reno, NV · $149,815 – $207,385
This senior mechanical engineering role focuses on designing and executing complex test programs for rocket motors and advanced propulsion systems in defense and space applications. It suits experienced engineers who can lead large-scale testing efforts, manage technical teams, and navigate the intersection of mechanical design, systems engineering, and mission-critical verification.
Computational Fluid Dynamics (CFD)Structural AnalysisTechnical WritingGeometric Dimensioning and Tolerancing (GD&T)
Listed on Voyager’s careers site · Apply there ↗
RS
Principal Turbomachinery Test Responsible Engineer
Relativity Space
Long Beach, CA · $185,000 – $277,000
Relativity Space is seeking an experienced turbomachinery engineer to design and develop fuel and oxidizer turbopumps for their Aeon-R rocket engine. This role suits someone with deep aerospace turbomachinery expertise who thrives in fast-paced, collaborative environments and wants to own projects from design through to launch.
Listed on Relativity Space’s careers site · Apply there ↗
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Accelerated Physics Simulation Engineer – Agentic Computational Engineering (ACE)
Voyager
Full-time · Washington, DC · $165,000 – $250,000
This role develops fast physics simulation engines and AI-accelerated surrogates that let autonomous agents optimize hardware designs across millions of iterations. It suits computational scientists or engineers who thrive at the intersection of numerical methods, GPU computing, and machine learning, and who want to compress years-long engineering cycles into days.
Listed on Voyager’s careers site · Apply there ↗
RS
Turbomachinery Test Responsible Engineer II
Relativity Space
Long Beach, CA · $104,000 – $156,000
You'll develop turbopump assemblies for Relativity's Aeon-R rocket engines, working across design, analysis, and testing to mature this critical component from concept through launch. This role suits experienced aerospace engineers comfortable with ambiguity who want hands-on ownership of turbomachinery systems in a fast-moving startup environment.
Listed on Relativity Space’s careers site · Apply there ↗
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Mechanical Engineer VI - Test
Voyager
Reno, NV · $165,000 – $190,000
A highly experienced mechanical engineer focused on test program design, data analysis, and systems engineering for advanced propulsion and defense applications. This role suits someone with 15+ years in mechanical engineering who can lead complex testing initiatives and guide teams through intricate technical challenges in rocket motor and avionics systems.
Computational Fluid Dynamics (CFD)Statistical AnalysisStructural AnalysisSystems EngineeringRisk ManagementSignal Processing
Listed on Voyager’s careers site · Apply there ↗
RS
Senior Turbomachinery Test Responsible Engineer
Relativity Space
Long Beach, CA · $132,000 – $198,000
This role involves developing turbopump assemblies for rocket engines at a commercial spaceflight company, requiring deep expertise in turbomachinery design, analysis, and testing. It suits engineers with aerospace background and 5+ years of experience who thrive in fast-paced development environments and can drive complex technical projects across design, analysis, and manufacturing interfaces.
Listed on Relativity Space’s careers site · Apply there ↗
RS
Manager, Turbomachinery Engineering
Relativity Space
Long Beach, CA · $160,000 – $246,000
Lead the turbomachinery engineering team at a rocket startup, managing the design, analysis, and development of engines for the Terran R launch vehicle. This role suits an experienced engineering manager with deep turbomachinery expertise who thrives in fast-paced environments and is passionate about developing both technical capabilities and people.
Listed on Relativity Space’s careers site · Apply there ↗
RS
Senior Responsible Engineer, Valves
Relativity Space
Long Beach, CA · $132,000 – $198,000
Design and qualify flow control devices including cryogenic and pneumatic valves for a rocket engine and launch vehicle, combining detailed analysis with hands-on testing and iteration in a manufacturing environment. This role suits experienced engineers who can own problems from initial architecture through flight qualification and want to work directly on hardware that reaches orbit.
Listed on Relativity Space’s careers site · Apply there ↗
RS
Aerothermal Engineer II
Relativity Space
Long Beach, CA · $103,000 – $155,000
This role develops computational fluid dynamics analyses and designs aerothermal systems for a reusable rocket vehicle, guiding hardware engineers through the thermal challenges of launch and atmospheric entry. It suits engineers with compressible flow and CFD expertise who want to shape critical vehicle systems at a company building rockets from the ground up.
Listed on Relativity Space’s careers site · Apply there ↗
RS
Sr Aerodynamics Engineer
Relativity Space
Long Beach, CA · $132,000 – $198,000
This senior role leads aerodynamics analysis and design for a reusable rocket vehicle, using computational fluid dynamics to solve stability, control, and thermal challenges across launch and reentry phases. It suits experienced CFD engineers who want to own critical vehicle systems and mentor hardware teams in a fast-moving startup environment.
Listed on Relativity Space’s careers site · Apply there ↗