158 propulsion development engineer jobs at 50 companies in United States
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Senior Propulsion Development Engineer (Thrusters)
Redondo Beach, California, United States
$135k-$155k/yrOnsiteFull Time
Impulse Space: Develops in-space transportation infrastructure and orbital transfer vehicles.
5+ YOESenior propulsion engineer with 5+ years in aerospace propulsion; bipropellant thruster experience; hands-on fluid/thermodynamics/structure; system trades and cross-functional leadership.
True Anomaly: Delivering decisive capabilities for space superiority and security.
8+ YOEBachelors in engineering, 8+ years in propulsion or fluid systems test engineering, experience defining test-stand requirements, conducting trade studies, facility design support, and strong written/verbal communication.
Inversion Space: Privately held aerospace building autonomous reentry vehicles for defense, logistics, and rapid cargo delivery from orbit.
5+ YOEBachelor's degree in aerospace or mechanical engineering or equivalent experience, 5+ years designing, building, and testing high-pressure fluid or rocket propulsion systems, CAD expertise, and clearance eligibility.
Wardstone: Private U.S. defense-tech startup building modular interceptors for air-breathing and ballistic missile defense.
Bachelor's degree in engineering, propulsion or high-pressure systems experience, solid rocket motor development through static fire, hands-on propulsion testing, and aerospace hardware design experience. US person or lawful permanent resident required.
Astra Space Operations: Private U.S. aerospace operator providing dedicated small-launch services and on-orbit mobility for small satellites.
10+ YOE10+ years propulsion experience, bachelor’s in aerospace/mechanical engineering, expertise in liquid rocket engines, requirements/interface management, test and qualification, and technical leadership.
Agile Space Industries: Private manufacturer of chemical rocket propulsion systems, testing them for commercial, civil, and national-security spacecraft missions.
12+ YOEM.S. or equivalent experience; 12+ years developing propulsion systems with expertise in fluid dynamics, heat transfer, combustion, hypergolic propulsion, performance modeling, testing, and mentorship.
Voyager TechnologiesNYSE: VOYG: Develops defense and space technology systems.
6+ YOEBachelor's degree in mechanical or aerospace engineering and 6+ years developing rocket propulsion systems, including cryogenic propellants and high-pressure fluid or pneumatic systems.
Collins Aerospace: Aerospace and defense systems manufacturer and service provider for airlines, aircraft operators and governments.
8+ YOEBachelor’s degree in STEM with 8 years of relevant experience or advanced degree with 5 years; 8 years in propulsion technology, solid propulsion development, and ability to obtain a U.S. security clearance.
Computational Fluid Dynamics (CFD), NPSS, Earned Value Management System
Estes Industries: Private U.S. manufacturer of model rocket motors, kits, and propulsion systems for hobbyists, educators, and defense customers.
7+ YOEBachelor's degree in mechanical, aerospace, or related engineering; 7+ years relevant experience or 5+ with a master's; solid rocket propulsion development, hardware testing, analysis, technical leadership, and explosives compliance required.
Quantum Space: Private U.S. space-defense building maneuverable spacecraft for national-security, civil, and commercial operators.
3+ YOEBachelor's/Master's/PhD in aerospace, mechanical, or related engineering; 3+ years developing propulsion systems/tanks/pumps; experience with design, analysis, fabrication, testing, integration; ability to drive technical work independently.
Rocket LabNASDAQ: RKLB: End-to-end space delivering launch services and spacecraft.
12+ YOE12+ years in propulsion system development, an engineering bachelor's degree, propulsion modeling and analysis expertise, electric propulsion experience, U.S. citizenship, and ability to obtain a security clearance.
Senior Propulsion Development Engineer, Ground Fluids
El Segundo or Washington or Huntsville
$140k-$232k/yrOnsiteFull Time
Varda Space Industries: Varda is a microgravity-enabled life sciences that processes materials in orbit and returns them to Earth.
3+ YOEB.S. in aerospace/mechanical engineering or equivalent, 3+ years propulsion fluid systems experience, proficiency with Piping and Instrumentation Diagrams, CAD and PLM, hands‑on fluid hardware and test/operations experience, and ability to author procedures.
Piping and Instrumentation Diagrams (P&IDs), CAD, PLM
Delta Air LinesNYSE: DAL: Connecting the world through exceptional service and innovation.
Support propulsion engineering for engine safety, reliability and lifecycle performance; develop workscope from OEM instructions; collect damage data; support failure investigations and shop visit reporting.
Rocket LabNASDAQ: RKLB: End-to-end space delivering launch services and spacecraft.
12+ YOE12+ years in propulsion system development, an engineering bachelor's degree, electric propulsion experience, systems modeling, testing, systems engineering, U.S. citizenship, and ability to obtain a security clearance.
Relativity Space: Aerospace developing 3D-printed rockets and launch services.
2+ YOEBachelor's in science or engineering,2+ years developing propulsion or combustion components,knowledge of thermodynamics/thermal/structural/fluids.
GITAI: U.S.-headquartered space robotics building robots for on-orbit servicing and lunar infrastructure construction.
5+ YOEBachelor's degree or higher in a relevant technical field, 5+ years of solid rocket propulsion or related hardware experience, end-to-end motor development expertise, and U.S. citizenship.
StellantisNYSE: STLA: Global automotive manufacturer and provider of innovative mobility solutions.
5+ YOEBachelor's degree in mechanical or related engineering and 5+ years in propulsion, powertrain, engine systems, or high-performance vehicle development. Requires 3D CAD, engine systems, manufacturing, GD&T, and communication skills.
StellantisNYSE: STLA: Global automotive manufacturer and provider of innovative mobility solutions.
5+ YOEBachelor's degree in mechanical or related engineering, 5+ years in propulsion or high-performance vehicle development, 3D CAD proficiency, engine systems knowledge, GD&T, and strong communication skills.