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 is currently seeking talented individuals for our Summer 2027 In-Space Propulsion Engineering Internship. As an intern on a small, fast-moving team, you will be challenged with supporting the dynamic environment of spacecraft propulsion design, development, manufacturing, test, and production. You will receive hands-on experience while helping solve difficult engineering problems. We thrive on giving ownership and authority, so you can expect to make decisions and make a difference!
This internship will be on the In-Space Propulsion team.
This position will be full-time.
Responsibilities:
- Design, analysis, manufacturing, and test of spacecraft propulsion components including thrusters, tanks, valves, and fluid systems
- Rapid-prototyping solutions to complex problems to achieve project goals within the internship
- Collaboration across multiple disciplines within the company to drive success
Required Qualifications:
- Background in mechanical, aerospace, or manufacturing engineering
- Must be an academic Junior or above by May 2027 (experience with Fluids, Mechanics of Materials, rocket propulsion, and other advanced classes)
- Excellent with first principle analysis with mechanical, thermal, and/or fluid-based scenarios
- Hands-on build and/or test experience (design > build > test lifecycle of a project)
- Demonstrated teamwork and ability to communicate effectively in a group setting
- Drive to continuously improve technical and team skills
- Experience with CAD software is preferred
- A passion for space and spacecraft propulsion
Colorado law requires us to tell you the base compensation range of this role, which is $30.00/hour, 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 Non-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.
Skills Required
- Background in mechanical, aerospace, or manufacturing engineering
- Must be an academic junior or above by May 2027
- Experience with fluids, mechanics of materials, rocket propulsion, or other advanced engineering classes
- Excellent first-principles analysis skills for mechanical, thermal, and/or fluid-based scenarios
- Hands-on build and/or test experience through a design-build-test project lifecycle
- Demonstrated teamwork and effective group communication skills
- Drive to continuously improve technical and team skills
- Experience with CAD software
- Passion for space and spacecraft propulsion
- Must be a U.S. Person, including a U.S. Citizen or Permanent Resident
- Eligibility to obtain and maintain a U.S. security clearance
What the Team is Saying
Ursa Major Compensation & Benefits Highlights
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Leave & Time Off Breadth — Time off is broad, combining unlimited PTO with two company‑wide shutdown weeks in July and at year‑end that help ensure employees disconnect.
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Healthcare Strength — Core coverage appears comprehensive, with medical, dental, and vision plus HSA/FSA, employer‑paid disability, life, AD&D, and EAP; some listings also cite optional add‑ons such as pet insurance.
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Parental & Family Support — Paid parental and adoptive leave is highlighted across official and third‑party materials as a notable strength.
Ursa Major Insights
What We Do
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.
Why Work With Us
We believe that each unique team member fuels the creativity necessary to build the world’s best propulsion systems. This is realized as a deeply held commitment to celebrating individuality, hiring talent across all backgrounds and experiences, building a culture of inclusion, and constantly challenging ourselves to improve.
Gallery
Ursa Major Offices
OnSite Workspace
Most employees work on-site with some positions allowing hybrid and/or remote work.
