Senior Mechanical Systems Engineer

Loft Federal; Boulder (CO); On-site; USD 131,750 - 178,250; Full time

Job summary

Loft Federal is seeking an experienced Mechanical System Engineer in Boulder, Colorado. You will lead design and oversight in satellite missions, engaging with internal teams to optimize technical specifications and perform structural analysis.

The ideal candidate has over 5 years of experience in mechanical engineering within aerospace, holds a Top Secret clearance, and is a U.S. Citizen. This role offers a competitive salary range of $131,750 - $178,250 USD.

Qualifications

• Active Top Secret clearance required.
• Must be a U.S. Citizen.
• Experience delivering spacecraft to orbit.

Responsibilities

• Lead mechanical system design and procurements.
• Maintain CAD models and collaborate with teams.
• Perform system optimization trades.
• Oversee structural and thermal analysis.
• Manage system specifications and verification techniques.

Skills

Mechanical engineering expertise

CAD proficiency

System-level knowledge

Vibration testing experience

Education

5+ years of experience as a Mechanical Engineer

Tools

Solidworks

Job description

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.

Job Overview

As a Mechanical System Engineer, you will work with business development and program management teams to shape multiple satellite missions simultaneously, each boasting a unique multi‑payload configuration. Your role will traverse boundaries across program management, systems engineering, discipline engineering, and AI&T to contribute to our satellite missions and drive impactful solutions in the evolving space industry.

Responsibilities

• Technical lead for mechanical system design and subsystem procurements
• Create and maintain CAD models while collaborating with internal teams and customers to conduct mechanical layout
• Perform system optimization trades by analyzing system performance and maintaining technical budgets
• Oversee spacecraft‑level structural and thermal analysis
• Engage closely with internal teams and customers to craft and manage system specifications and verification techniques, ensuring alignment with ambiguous customer requirements
• Provide support to program management and product management, serving as a liaison with customers to ensure smooth program execution
• Conduct inspections and reviews of engineering documents and hardware
• Extend expertise to support test planning and actively participate in the integration and test campaigns at our spacecraft manufacturer’s site, ensuring adherence to rigorous quality standards

Mission Mandates

• Active Top Secret clearance is required and the ability to obtain 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 and/or Special Access Programs
• Must be a U.S. Citizen

Mission Credentials

• Enjoy being the face of the technical requirements and working with a team to deliver quality hardware
• Pioneer innovation in aerospace bringing commercial space solutions to U.S. government customers
• Have comprehensive system‑level knowledge and experience in mechanical subsystems
• Thrive in a dynamic and fast‑paced development environment, adapting and excelling under pressure
• Prior experience delivering a spacecraft to orbit and/or space‑qualified hardware to a customer
• Have 5+ years of experience as a Mechanical Engineer with detailed knowledge of spacecraft structures
• Detailed understanding of GD&T and tolerance analysis
• Proficiency with Solidworks or similar CAD software
• Pragmatic vibration testing experience (pre‑test inputs, test oversight, data reduction, report generation)

Compensation

Salary Range: $131,750 USD - $178,250 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 [e-mail] for assistance.