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Principal Mechanical Engineer (Thermal Control Systems) Verified today

Sierra Space · Louisville, CO · Mechanical · first seen 2026-07-16

About the Role

You will lead design and analysis efforts for thermal control systems across multiple space vehicle programs, serving as the Responsible Engineer. Your responsibilities include:

  • Managing all aspects of system and component design, analysis, development and integration
  • Conducting trade studies, layout definition, and architecture development
  • Leading system testing, verification and production troubleshooting
  • Analyzing and interpreting test and simulation data to inform design decisions
  • Preparing detailed technical documentation and reports
  • Serving as the prime technical thermal control systems contact on contracts and projects
  • Contributing to development of new principles and concepts
  • Mentoring junior engineers on technical and professional development
  • Collaborating with cross-functional teams to develop and refine system designs

Minimum Qualifications

  • Bachelor's degree in a related field (or equivalent work experience, or master's degree plus 10 years experience)
  • 12+ years of related experience
  • Demonstrated expertise in Thermal Control Systems technical standards, principles, theories, concepts and techniques
  • Ability to provide solutions to unusually complex technical problems requiring ingenuity and creativity
  • Ability to work under consultative direction towards predetermined long-range goals and objectives
  • Ability to obtain and maintain a U.S. Security Clearance

Preferred Qualifications

  • Advanced degree in Mechanical Engineering, Aerospace Engineering or related field
  • Extensive experience with design, analysis, integration and test methods for space vehicle thermal control systems at subsystem and component level (radiators, heaters, MLI)
  • Proficiency with advanced engineering software tools such as NX and Thermal Desktop
  • Experience with advanced data analysis tools and techniques
  • Strong problem-solving skills and proven track record of innovative mechanical engineering solutions
  • Superior communication and presentation skills for diverse audiences
  • Ability to work independently and within teams, demonstrating strong leadership and collaboration
  • Demonstrated ability to manage multiple high-stakes projects and meet challenging deadlines
  • Advanced knowledge of manufacturing processes, material sciences and their impact on thermal control systems
  • Advanced experience with end-item or vehicle-level testing and validation
  • Experience supporting pursuits and proposals, including technical proposals and BOEs

Compensation

Pay Range: $167,096 - $229,757

Base compensation determined on a case-by-case basis based on job-related knowledge and skills, education, experience, internal equity and market competitiveness.

Security Clearance

This position requires the ability to obtain and maintain a U.S. Security Clearance. U.S. Citizenship is required as this position needs an active U.S. Security Clearance for employment.

Benefits

Sierra Space offers medical, dental and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, and additional benefits.