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Loft Federal is committed to delivering the U.S. national security space community a fast, affordable, and streamlined pathway to orbit. As a wholly owned U.S. subsidiary of Loft Orbital Solutions, Inc., we specialize in providing mission-ready space infrastructure with unmatched efficiency. About Loft Federal

Loft Federal is committed to delivering the U.S. national security space community a fast, affordable, and streamlined pathway to orbit. As a wholly owned U.S. subsidiary of Loft Orbital Solutions, Inc., we specialize in providing mission-ready space infrastructure with unmatched efficiency.

At Loft, we empower our team with autonomy, ownership, and bold problem-solving opportunities while fostering a tight-knit, supportive environment. We believe that diversity, inclusivity, and community are the foundation of an open and innovative culture. We value kind, collaborative, and mission-driven teammates who excel in problem-solving and communication—because great solutions come from great teams.

Are you ready to embark on this exciting journey with us?

As a Principal Mechanical Engineer at Loft Federal, you will own our hardware development from conceptual design through production ensuring strict adherence with design criteria. You will lead our mechanical team in design iterations, structural and thermal analyses, manufacturing and support our integration and testing efforts to ensure the resilience of our space hardware. Additionally, your technical leadership will help the team manage technical deliverables, schedules, and operations. You will provide mentorship to our more junior mechanical engineers, and foster collaboration with the rest of our engineering team for seamless mission execution.

Mission Objectives

Rapidly iterate on designs and analysis to inform high level systems trades and steer overall product direction. Oversee detailed structural and thermal analysis to engineer robust space hardware. Provide comprehensive support for environmental and performance testing on hardware, validating analyses, and ensuring compliance with design criteria. Ownership of technical deliverables as well as schedules, supply chain, and operations. Act as the primary mechanical point of contact for suppliers, customers, and subcontractors, ensuring seamless communication and collaboration. Collaborate closely with cross-functional teams to ensure alignment and synergy across all aspects of the project.

Mission Mandates

Active DoD Secret clearance is required. The ability to obtain and maintain a Top Secret / Sensitive Compartmented Information (TS/SCI) clearance is required. Preference will be given to candidates with a DoD or Intelligence Community Top Secret background investigation with at least 3 years of eligibility remaining or CE status; and SCI eligibility with current experience in SCI programs, other control systems, and/or Special Access Programs.

Mission Credentials

A Bachelor's degree in Mechanical Engineering or a directly related field. Over 12 years of extensive experience in mechanical design, manufacturing, and testing with end-to-end satellite program experience. Background in small satellite assembly, integration, and test campaigns with an emphasis on manufacturing and Assembly Integration and Test (AI&T). Proficiency with CAD software, with SolidWorks preferred. Leadership experience within engineering teams. Strong mechanical aptitude to address a variety of technical challenges complex in nature. Proven track record of successful hardware ownership on a spacecraft, subsystem, or payloads. Experience in structural and thermal design and analysis, encompassing both manual calculations and Finite Element Models (FEM). Excellent communication skills, with the ability to articulate effectively in customer meetings. Experience in force-limited vibration testing or developing analytical notched profiles. Proficiency in selecting materials, manufacturing methods, and surface treatments for mechanical components. Experience in designing avionics enclosures for PCBAs. Experience in harness routing.

Per Colorado law, we are required to disclose the base compensation range for this role. This range is intentionally wide as we assess individuals based on their unique abilities and experience to find the best fit for our needs. Ultimately, your compensation will be determined by your education, experience, knowledge, skills, and abilities. In addition to a competitive salary and benefits package, you will find a truly remarkable culture guided by transparency and collaboration and work that is challenging and meaningful. We can't wait to meet you and see what you may add to our team!

Salary Range: $160,000 USD - $208,000 USD

Equal Employment Opportunity & Affirmative Action

Loft Federal is an Equal Employment Opportunity and Affirmative Action Employer. We consider all qualified applicants for employment without regard to race, color, age, religion, sex, gender identity or expression, sexual orientation, marital status, national origin, ancestry, veteran status, genetic information, disability, pregnancy, or any other legally protected status.

Accessibility & Accommodations

If you require a reasonable accommodation due to a disability when applying for an open position, please contact us at recruiting@loftfederal.com for assistance.

We Hire for Talent, Not Just Resumes

Research shows that while men apply for jobs when they meet about 60% of the qualifications, women and other underrepresented groups tend to apply only when they meet 100% of the listed criteria. At Loft Federal, we value diverse perspectives, respectful debate, and people who challenge assumptions. If you’re excited about a role but don’t meet every requirement, we strongly encourage you to apply.

Third-Party Recruiters & Agencies

No outside recruiters, please. Loft Federal does not accept unsolicited resumes from headhunters, staffing agencies, or third-party recruiters. We will not pay fees for candidates submitted without a signed agreement in place. Seniority level Seniority level Not Applicable Employment type Employment type Full-time Job function Industries Technical and Vocational Training and Education Referrals increase your chances of interviewing at Loft Federal by 2x Get notified about new Principal Mechanical Engineer jobs in Golden, CO . Engineering Manager II - Mechanical Engineering Lone Tree, CO $165,010 - $226,889 2 months ago Engineering Manager II - Mechanical Engineering Lone Tree, CO $165,010 - $226,889 2 months ago Mechanical Engineer Sr. - Nose Fairing/Composite IPT Lead Denver, CO $110,000 - $129,000 2 weeks ago Manager. Test Facility Equipment and Tooling Design Lead Mechanical Engineer - Energy & Power Denver, CO $129,400.00 - $164,175.00 6 days ago Denver, CO $120,000.00 - $160,000.00 2 weeks ago Sr. Manufacturing Engineering Manager - Mechanical Sub-Assemblies Senior Mechanical Engineer : Energy & Power (Denver)23363 Denver, CO $116,400.00 - $170,000.00 6 days ago Mid-Level HVAC Mechanical Design Engineer – Multiple Sectors Denver, CO $130,000.00 - $160,000.00 2 weeks ago Senior Engineer - Mechanical | Electrical (Justice + Civic) Thornton, CO $55,000.00 - $65,000.00 1 week ago Boulder, CO $55,000.00 - $65,000.00 1 week ago Denver, CO $110,000.00 - $150,000.00 6 days ago Sr Systems Engineering Manager, Fluids - New Glenn Upper Stage Commercial HVAC Mechanical Project Manager Centennial, CO $112,828.00 - $157,959.00 1 month ago Commercial HVAC Mechanical Project Manager Centennial, CO $112,828.00 - $157,959.00 1 month ago Optical Structures, Thermal, and Mechanisms Manager - Top Secret Mechanical Project Manager - Westminster, CO Senior Mechanical Design Engineer - Vehicle Interiors Broomfield, CO $100,000 - $120,000 1 month ago Louisville, CO $90,000 - $110,000 1 month ago We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.

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