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.

As a Design Engineering intern on a small, fast-moving team, you will support mechanical design, development, manufacturing, test, and production of rocket motor cases and nozzles. You will develop a rich understanding of rocket motor hardware and operation, while gaining hands-on experience solving difficult engineering problems. You will be given ownership and authority, so you can expect to make decisions and make a difference. The most successful candidates will demonstrate a strong work ethic, self-starting attitude, and thrive in a collaborative team environment. This full-time internship will be based out of our Berthod, CO location.

Responsibilities

3D modeling & design of inert motor components, tooling, and development hardware

2D drafting and geometric tolerancing per ASME Y14.5

Documenting designs and conducting design reviews

Performing hand calcs and structural analysis via FEA

Assembly of inert rocket motor components

Static fire test support

Requirements

Background in mechanical, electrical, aerospace, or manufacturing engineering

Must be an academic senior or above by May 2027 (experience with fluids, mechanics of materials, and other advanced classes)

Excellent with first principal analysis with mechanical 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

Program Details:

Location: On-site at our Berthoud, CO facility

Duration: Approximately 10–12 weeks

Schedule: Full-time, Monday–Friday

This is a paid internship

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.

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.

2027 Summer Design Engineering Intern

Ready to apply?