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15 propulsion engineer jobs at 8 companies in Vallejo, CA

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Propulsion Engineer - Test
San Francisco, California, United States
$125k-$170k/yr OnsiteFull Time
Astranis
Astranis: Builds and operates small geostationary communications satellites.
3+ YOEB.S. in a technical discipline, 3+ years propulsion system testing experience, hands-on design/build/test hardware ability, familiarity with Range Safety standards, and onsite presence 5 days/week.
Python, Numpy, Scipy, C++, Git
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Propulsion Engineer
San Francisco or Washington or Maine
OnsiteFull Time
Poseidon Aerospace
Poseidon Aerospace: A building and operating autonomous cargo aircraft to reduce air freight cost and reach remote locations.
Hands-on engine assembly, calibration, tuning, and test-stand validation of EFI piston engines; experience with ECUs, DAQ, propeller governors, fault diagnosis, and procedure development.
ECU, DAQ, EFI
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2mo
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Senior Propulsion Engineer, Combustion
San Francisco, California, United States
$150k-$225k/yr OnsiteFull Time
Astro Mechanica
Astro Mechanica: Building turboelectric jet engines for supersonic aircraft.
5+ YOE5+ years designing combustion devices for propulsion; CAD NX; thermodynamics; data acquisition; prototype assembly and testing.
Siemens NX, CAD / CAD modeling, GD&T
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Entry-Level Propulsion Design Engineer
San Francisco, California, United States
$115k-$145k/yr OnsiteFull Time
Astro Mechanica
Astro Mechanica: Building turboelectric jet engines for supersonic aircraft.
Entry-level propulsion engineer with hands-on fluidic/mechanical experience, proficiency in Siemens NX, exposure to manufacturing, GD&T, heat transfer, turbomachinery, data acquisition, and instrumentation.
Siemens NX
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Lead Propulsion Systems Development Engineer
Alameda, California, United States
$200k-$240k/yr OnsiteFull Time
Astra
Astra: Manufacturer of orbital launch vehicles and satellite propulsion systems.
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.
Python, MATLAB, Simulink, NPSS
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Propulsion Manufacturing Intern (Fall 2026)
San Francisco, California, United States
$29/hr OnsiteInternship, Full Time
Astranis
Astranis: Builds and operates small geostationary communications satellites.
0+ YOEPursuing BS in Mechanical, Aerospace, Industrial, or Manufacturing Engineering; CAD proficiency; hands-on design interest; strong manufacturing interest; team collaboration; apply even if not all criteria met.
CAD (Solidworks, Creo, NX)
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Senior Propulsion Test Engineer
San Francisco, California, United States
$150k-$225k/yr OnsiteFull Time
Astro Mechanica
Astro Mechanica: Building turboelectric jet engines for supersonic aircraft.
5+ YOE5+ years in fluidic/mechanical testing; safety in hazardous environments; data acquisition; PLC and software (Python, MATLAB, LabVIEW).
PLC, Python, MATLAB, LabVIEW, Data acquisition
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Test Engineer
Byron, California, United States
$118k-$190k/yr OnsiteFull Time
Elroy Air
Elroy Air: Builds autonomous vertical takeoff and landing aircraft for cargo logistics.
2+ YOEBachelor's in engineering, 2+ years test experience in hardware verification or lab testing, hands-on with propulsion/battery/EV systems, DAQ (National Instruments, Dewesoft), proficiency with Python, MATLAB, or LabVIEW, and strong troubleshooting and reporting skills.
National Instruments, Dewesoft, Python, MATLAB, LabVIEW, CAD, DAQ, HIL
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Sr Development Test Engineer
Alameda, California, United States
$140k-$180k/yr OnsiteFull Time
Astra
Astra: Manufacturer of orbital launch vehicles and satellite propulsion systems.
5+ YOE5+ years hands-on test engineering in propulsion or aerospace; owns test stands from concept to operation; experience with high-pressure fluid systems, cryogenics, and DAQ; read drawings; perform hazardous operations.
DAQ hardware, NI, Beckhoff, sensors, valves, transducers
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Sr. Systems Engineer - GNC
Palo Alto, California, United States
$117k-$195k/yr OnsiteFull Time
Lanteris Space Systems
Lanteris Space Systems: Manufactures high-performance satellites and spacecraft for orbital missions.
5+ YOEUS citizen or permanent resident; Bachelor's in engineering/math/physics/STEM (or equivalent experience); 5+ years systems engineering or real-time control experience; GNC/astrodynamics/propulsion knowledge; requirements management and verification experience; coding in C, C++, Python or MATLAB preferred.
DOORS, JAMA, C, C++, Python, MATLAB
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Senior Systems Modeling Engineer
South San Francisco, California, United States
OnsiteFull Time
Zipline
Zipline: Operates an autonomous drone delivery system for medical supplies.
8+ YOE8+ years modeling electric propulsion or complex electro-mechanical systems, experimental test design, quantitative trade studies, numerical methods, controls, and proficiency in MATLAB/Python/Julia/Rust.
MATLAB, Python, Julia, Rust, ANSYS Motor-CAD, ANSYS Maxwell, JMAG, COMSOL, ANSYS Icepak
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Senior Mechanical Design Engineer
San Francisco, California, United States
$150k-$225k/yr OnsiteFull Time
Astro Mechanica
Astro Mechanica: Building turboelectric jet engines for supersonic aircraft.
7+ YOE7+ years experience with fluidic/mechanical/propulsion systems, proficiency in Siemens NX, strong manufacturing and GD&T knowledge, test and data analysis experience, instrumentation and power electronics familiarity.
Siemens NX
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Senior Motor Test Engineer - Powertrain
South San Francisco, California, United States
OnsiteFull Time
Zipline
Zipline: Operates an autonomous drone delivery system for medical supplies.
Experience characterizing electric motors, actuators, and propulsion systems; test fixture and dynamometer experience; instrumentation and data-acquisition skills; Python proficiency; ability to lead performance and reliability test campaigns.
Python
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Marine Engineer - Alcatraz Cruises
San Francisco, California, United States
$55/hr OnsiteFull Time
Hornblower Group
Hornblower Group: Global provider of water-based experiences and ferry transportation services.
2+ YOEMinimum 2 years industry experience; HAZWOPER (40 hours), forklift, CPR and first aid; electrical, welding, fabrication, diesel engine, pump, and hybrid propulsion system expertise required.
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Upper Stage Engine Technical Lead
Alameda, California, United States
$200k-$240k/yr OnsiteFull Time
Astra
Astra: Manufacturer of orbital launch vehicles and satellite propulsion systems.
10+ YOERequires 10+ years developing liquid rocket propulsion or integrated aerospace hardware, degree in engineering, technical leadership, deep propulsion expertise, and excellent communication.
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