Ursa Major
Senior Propulsion Engineer, Fluid & Mechanical Systems
Berthoud, Colorado
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hirly's read of this role
- Seniority
- Senior
- Stated salary
- $121,000 – $152,000 per year
- Country
- US
- Work mode
- On-site / unstated
- First seen by hirly
- 2 Sept 2026
Derived automatically from the posting. Upload your resume above to see how the role scores against it.
the posting
The future of aerospace and defense starts here.
Ursa Major was founded to revolutionize how America and its allies access and apply high-performance propulsion, from hypersonics to solid rocket motors, satellite maneuvering and launch. We design and deliver propulsion and defense systems that solve the most urgent and critical national security demands.
Ursa Major’s teams move fast and do a lot with little. We are looking for a skilled, fast learning individual who will serve as a central member of the team and take immediate ownership of fluid and mechanical system design efforts as a responsible engineer. This role will be part of the technical organization, responsible for clean sheet design, development, and validation of a variety of propulsion hardware, as well as technical guidance and mentoring of a team responsible for similar hardware. Candidates will be expected to have ownership from the initial concept phase to a production-ready design.
Responsibilities:
Clean sheet design of fluid & mechanical engine components including gimbals, actuators, valves, and fluid systems
Design modifications of existing components and prototypes to increase performance, improve manufacturability or resolve limitations
Work with other engineers at Ursa Major on topics including design of components, system sizing, component testing, and system-level architecture and development
Derive requirements from top level engine and test objectives
Write, review, and update work instructions for the assembly of engine components as well as establish appropriate acceptance and qualification tests
Assemble and test first article prototypes
Work closely with interfacing teams to ensure successful integration of component designs into the engine system
Support validation and recursive design during engine development
Required Qualifications
Bachelor’s degree in engineering
4+ years of relevant mechanical design experience
Electromechanical and pneumatic actuator design experience
Experience testing high-pressure fluid systems
Demonstrated proficiency with computer aided design and drafting
Experience with geometric dimensioning and tolerancing per ASME Y14.5
Strong understanding of industry standards and requirements
Desire to take ownership and help wherever needed on the team
Able to delegate tasks and lead large project scope
Ability to work in a fast-paced environment and stay flexible based on customer demands and company priorities along with daily firefighting
Desired Experience
Master's or PhD in engineering
Demonstrated proficiency with fundamental manual or CNC machining equipment and processes (milling, turning)
Demonstrated proficiency with basic principles of design for additive manufacturing
Liquid propellant rocket engine design, test, or analysis
Experience operating in ISO 9001 or AS9100 certified organizations.
Experience with SMC-S-016 Test Requirements
Experience with structural, fluids, and thermal analysis using Ansys FEA software
2+ years of PTC Creo or Siemens NX CAD programs and Windchill PLM software
Direct experience with flight qualification and flight support
Colorado law requires us to tell you the base compensation range of this role, which is $121,000 - $152,000, determined by your education, experience, knowledge, skills, and abilities. What we can’t quantify for you are the exciting challenges, supportive team, and amazing culture we enjoy.
Classification: Full-time Exempt
Benefits Include: (Please note, Interns are not eligible for benefits)
Unlimited PTO - Vacation, Sick, Personal, and Bereavement
Paid Parental and Adoptive Leave
Medical, Dental and Vision Insurance
Tax Advantage Accounts (HSA/FSA)
Employer Paid Short and Long Term Disability, Basic Life, AD&D
Additional Benefit Options Including Voluntary Life and Emergency Medical Transport
EAP Program
Retirement Savings Plan - 401k with Company Match
- How To Apply:
- Interested candidates are encouraged to apply by filling out the application below and clicking "Submit Application". This position will be posted for a minimum of 3 days and will remain open until filled or adjusted based on the volume of applicants.
NOTE: Research suggests that women and BIPOC individuals may self-select out of opportunities if they don't meet 100% of the job requirements. We encourage anyone who believes they have the skills and the drive necessary to succeed here to apply for this role.
Must be a U.S. Person (this includes U.S. Citizens and Permanent Residents).
Eligibility to obtain and maintain a U.S. Security Clearance.
We’re an equal-opportunity employer. You will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran, or disability status.
No outside recruiters, please.
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