The Role Support mechanical design, drafting, geometric tolerancing, analysis, assembly, testing, and production of rocket motor cases, nozzles, tooling, and development hardware. Responsibilities include 3D modeling, design documentation, design reviews, hand calculations, FEA, inert component assembly, and static fire test support. This full-time, on-site internship provides hands-on experience across the design-build-test lifecycle in aerospace propulsion. Summary Generated by Built In 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 solv ing difficult engineering problem s . You will be given ownership and authority, so you can expect to make decisions and make a difference. Th e 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. Read Full Description Skills Required Background in mechanical, electrical, aerospace, or manufacturing engineering Must be an academic senior or above by May 2027 Coursework or knowledge in fluids, mechanics of materials, and other advanced engineering subjects Strong first-principles analysis ability for mechanical or fluid-based scenarios Hands-on build and/or test experience across a design-build-test project lifecycle Teamwork and effective communication skills in group settings Drive to continuously improve technical and team skills Experience with CAD software Must be a U.S. Person, including U.S. Citizens and Permanent Residents Eligibility to obtain and maintain a U.S. security clearance What the Team is Saying Chaka Master Propulsion Technician "I usually compare working here to having a group of friends and we're all helping to restore a classic car in one of our buddies' garages.......except it's a freakin' rocket engine!" Chaka Master Propulsion Technician "I usually compare working here to having a group of friends and we're all helping to restore a classic car in one of our buddies' garages.......except it's a freakin' rocket engine!" Connor Manufacturing Quality Engineer I spend every day working on one of the most important problems that we face as a society: creating reliable and affordable methods of getting to space. I am also surrounded by the most amazing, passionate, and interesting people that I've ever met. Maggie Systems Engineer Career growth on my team is multi-faceted. The leadership and your team members at Ursa Major help you to grow your technical skills and ensure that you are constantly growing your soft skills. Ursa Major cares about what interests you and what future opportunities you are working towards and helps you get there! I look forward to going to work every day at Ursa Major to solve problems with my team members, grow as an individual and employee, and have fun building rocket engines! Ursa Major Compensation & Benefits Highlights 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. 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. Parental & Family Support — Paid parental and adoptive leave is highlighted across official and third‑party materials as a notable strength. Learn more about Ursa Major's Compensation & Benefits → Ursa Major Insights What's It Like to Work at Ursa Major? Ursa Major Culture & Values Ursa Major Career Growth & Development What's the Work-Life Balance Like at Ursa Major? Ursa Major Leadership & Management Ursa Major Company Growth, Stability & Outlook View all jobs at Ursa Major View Ursa Major Profile Report Job