Senior Propulsion Engineer – Fluid and Mechanical Systems

Berthoud, Colorado
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Ursa Major was founded to address a critical shortfall in the U.S. industrial base and bring a new model to aerospace and defense systems: we design and manufacture the world’s leading propulsion systems for space, hypersonic applications, and missile systems. 

Our products and technologies require an extraordinary team – a team that will mold tomorrow’s technologies while deploying today’s best. We are an intrinsically motivated team that has a passion for solving problems and empowering each other every day to develop our skills, knowing that there is always room for growth.

Ursa Major’s teams moves fast and do a lot with little. We are looking for a skilled, fast learning individual who will lead our fluid and mechanical system design efforts. This role will be part of the technical organization, responsible for clean sheet designs 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 and may need to support multiple engine programs simultaneously.


  • 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
  • Mentor other engineers at Ursa Major on topics including design of components, system sizing, component testing, and system-level architecture and development for multiple engine programs.
  • 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

Required Qualifications

  • Bachelor’s degree in engineering
  • 5+ years of relevant mechanical design experience
  • Demonstrated proficiency with computer aided design and drafting 
  • Experience with geometric dimensioning and tolerancing per ASME Y14.5
  • Working knowledge of and hands-on experience with fluid, mechanical, and electrical systems
  • 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

  • Demonstrated proficiency with fundamental manual or CNC machining equipment and processes (milling, turning)
  • Prior track record leading technical teams
  • Demonstrated proficiency with basic principles of design for additive manufacturing
  • Liquid propellant rocket engine design, test, or analysis
  • Familiarity with oxygen-rich staged combustion engine cycle
  • 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
  • 3+ years of PTC Creo or Siemens NX CAD programs and Windchill PLM software

Colorado law requires us to tell you the base compensation range of this role, which is $95,000 - $155,000, 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. Click here for more information about our awesome benefits.

Classification: Full-time Exempt.

Benefits Include:


  • 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 - Traditional 401(k) and a Roth 401(k)
  • Company stock options 

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.
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.