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19 propulsion engineer jobs at 6 companies in Fort Collins, CO

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Propulsion Engineer, Fluid & Mechanical Systems
Berthoud, Colorado, United States
$76k-$95k/yr OnsiteFull Time
Ursa Major
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
1+ YOEBachelor's degree in engineering; hands-on mechanical design experience; fluid mechanics expertise; CAD proficiency; standards knowledge; leadership ability. Preferred: propulsion, high-pressure fluids, Ansys, Creo or NX, Windchill, and analysis experience.
Computer Aided Design (CAD), Ansys FEA, PTC Creo, Siemens NX, Windchill PLM, SMC-S-016, ASME Y14.5, ISO 9001, AS9100
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1mo
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Propulsion Systems Engineer II
Berthoud, Colorado, United States
$92k-$115k/yr OnsiteFull Time
Ursa Major
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
3+ YOEBachelor's in aerospace/mechanical or related, 3+ years propulsion systems experience, CAD proficiency, GD&T (ASME Y14.5), hands-on fluid/mechanical/electrical systems experience, and ability to obtain a U.S. security clearance.
Siemens NX, Windchill PLM, Ansys, CNC
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Propulsion Engineer, Combusion Devices
Berthoud, Colorado, United States
$80k-$100k/yr OnsiteFull Time
Ursa Major
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
Bachelor’s degree in mechanical or aerospace engineering; rocket engine component experience; CAD proficiency; fluid, mechanical, and electrical systems knowledge; and hardware lifecycle ownership skills.
Computer-Aided Design and Drafting (CAD), Computational Fluid Dynamics (CFD), Ansys, Siemens NX, Windchill PLM, ASME Y14.5
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2mo
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Propulsion Engineer II
Berthoud, Colorado, United States
$92k-$115k/yr OnsiteFull Time
Ursa Major
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
2+ YOEBachelor’s degree in engineering; 2+ years hardware design/ownership; CAD and GD&T; pressure vessels, fluids, mechanical and electrical systems; strong ownership and collaboration.
Siemens NX, Windchill PLM, Ansys FEA, CAD, GD&T ASME Y14.5
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Engineer Senior – Space Vehicle Propulsion
Boulder, Colorado, United States
$97k-$165k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
4+ YOEBS in engineering (or related) with 4+ years related experience; hands-on assembly/integration/test of pressurized in-space propulsion systems; able and eligible to obtain Top Secret/SCI polygraph; U.S. person/citizen required.
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Senior Propulsion Engineer, Combustion Devices
Berthoud, Colorado, United States
$121k-$152k/yr OnsiteFull Time
Ursa Major
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
5+ YOEBachelor's degree in engineering, 5+ years of mechanical design experience, liquid rocket engine design or analysis, CAD proficiency, ASME Y14.5 GD&T, and fluid, mechanical, and electrical systems experience.
Computer Aided Design and Drafting, Ansys FEA, PTC Creo, Siemens NX, Windchill PLM, CNC
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Senior Propulsion Engineer, Fluid & Mechanical Systems
Berthoud, Colorado, United States
$121k-$152k/yr OnsiteFull Time
Ursa Major
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
4+ YOEBachelor’s degree in engineering and 4+ years of mechanical design experience required. Requires actuator design, high-pressure fluid testing, CAD, GD&T, and project leadership experience; security clearance eligibility required.
Computer Aided Design and Drafting, CNC, Ansys FEA, PTC Creo, Siemens NX, Windchill PLM
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6d
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2026 Intern Conversion - Propulsion Engineer I
Seattle or Van Horn or Denver or Huntsville or Florida or Arlington or Los Angeles or Longmont or Reston
$75k-$114k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
Completed a 2026 Blue Origin internship; enrolled in or recently graduated from college; bachelor's degree in mechanical, aerospace, or astronautical engineering; U.S. work authorization; strong communication and independent teamwork skills.
Defense Biometric Identification System (DBIDS)
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Engineer I – Space Vehicle Propulsion
Boulder, Colorado, United States
$65k-$110k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA.: Produces advanced defense, aerospace, and information security systems.
BS in Engineering or related, ability to perform propulsion analysis and test support, multidisciplinary teamwork, eligible for Top Secret/SCI with polygraph, <10% travel.
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Sr Mechanical Engineer - Propulsion
Centennial or Louisville
$137k-$189k/yr OnsiteFull Time
Sierra Space
Sierra Space: Develops spacecraft and infrastructure for orbital and space transportation
8+ YOEBachelor's in related field (or equivalent experience), typically 8+ years engineering experience, expertise in mechanical systems, ability to solve complex problems, work with limited oversight, and mentor junior engineers.
NX, SolidWorks, ANSYS, GD&T
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Chief Engineer, Hypersonic Missile and Interceptor
Berthoud, Colorado, United States
$175k-$230k/yr OnsiteFull Time
Ursa Major
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
12+ YOEBachelor's degree in aerospace, mechanical, or related engineering; 12+ years of aerospace vehicle development; chief engineer, systems engineering, or vehicle architecture experience; propulsion integration and flight readiness expertise.
MBSE, ISO 9001, AS9100, SMC-S-016
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Development Engineer II
Berthoud, Colorado, United States
$90k-$115k/yr OnsiteFull Time
Ursa Major
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
2+ YOEBachelor's in engineering, 2+ years rocket propulsion experience, knowledge of solid rocket motor fundamentals, programming competency, CAD experience (Siemens NX preferred), and eligibility for U.S. Secret security clearance.
Siemens NX, Python, MATLAB, FORTRAN, CEA, CLWire, ProPEP, ANSYS
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Staff Ground Support Engineer
Berthoud or Galeton
$129k-$161k/yr OnsiteFull Time
Ursa Major
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
8+ YOEBachelor's in engineering,8+ years in propulsion/testing or high-consequence hardware,PLCs/DAQ/CAD experience,ability to obtain explosive permits and Secret clearance,leadership in test infrastructure design.
PLC, National Instruments, NX, CATIA, SolidWorks, Inventor
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2mo
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Satellite Operations Engineer
Louisville, Colorado, United States
$85k-$165k/yr HybridFull Time
IonQ
IonQNYSE: IONQ: Develops and sells trapped-ion quantum computers and cloud services.
2+ YOEBachelor’s or Master’s in aerospace engineering, mathematics, computer science, physics, or related field; 2+ years experience; Python proficiency; knowledge in at least one of: astrodynamics, GNC, EE, communications, thermal, embedded software, propulsion; Git experience.
Python, Git
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Senior Responsible Engineer (RE), Solid Missile Systems
Berthoud, Colorado, United States
$118k-$147k/yr OnsiteFull Time
Ursa Major
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
7+ YOEBachelor's in engineering, 7+ years propulsion/aerospace product development including solid rocket motor (SRM) experience, demonstrated technical leadership, SRM subsystem knowledge, systems thinking, and eligibility for U.S. security clearance.
FEA
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Senior Thermal Fluids Engineer
Broomfield, Colorado, United States
OnsiteFull Time
Karman+
Karman+: Developing autonomous spacecraft for asteroid mining and resource utilization.
Deep aerospace experience in thruster design, propellant systems, heat transfer, and space-rated thermal management; proficiency with FEA, CFD, propulsion modeling, and CAD; strong communication and multidisciplinary collaboration skills.
FEA, CFD, CAD
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Staff Test Infrastructure & Controls Engineer, Solid Missile Systems
Berthoud or Galeton
$129k-$161k/yr FieldFull Time
Ursa Major
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
8+ YOEBachelor's in engineering, 8+ years in propulsion/test infrastructure or high-consequence hardware, experience with test stands/GSE, PLC and National Instruments DAQ, 3D CAD (NX/CATIA/SolidWorks/Inventor), and ability to obtain ATF explosive permits and Secret clearance.
PLC, National Instruments, DAQ, NX, CATIA, SolidWorks, Inventor
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3mo
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Vice President, Engineering
Berthoud, Colorado, United States
$240k-$300k/yr OnsiteFull Time
Ursa Major
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
15+ YOE15+ MgmtLead a rapidly growing engineering organization; design, develop, fly, and mass produce propulsion products; set strategic roadmap and drive multi-domain teams.
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AIRCRAFT ENGINE MECHANIC
Cheyenne, Wyoming, United States
$31-$40/hr OnsiteFull Time
Air National Guard
Air National Guard: Federal and state military reserve force providing air defense.
Must be willing/eligible to join the Wyoming Air National Guard; experience/training performing assembly, disassembly, maintenance, troubleshooting, and repair of aircraft engines and propulsion components; able to lift 60 lbs; valid state driver's license; must meet military and ASVAB requirements.
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