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Salary
$83k – $114k per year
Location
In office (Louisville, Centennial)
Seniority
Junior
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 13, 2026. First seen by Alion on Oct 7, 2026. Sierra Space scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Sierra Space is a space technology company that develops the Dream Chaser spaceplane and inflatable orbital habitats. Its vehicles are designed to deliver cargo to orbit and land on conventional runways, and the company also builds environmental control systems and space robotics. The company is headquartered in Louisville, Colorado, United States.

Sierra Space Careers:

At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth.

Sierra Space team members share a spirit of innovation and collaboration and a belief that we can deliver on the boldest missions in space today. Together with our customers, we aim to safeguard our nation, sustain human presence in space, and secure the freedom of operations in low Earth orbit and beyond.

Our success is measured by the trust of those who rely on what we build and deliver, and our technologies keep the United States and its allies mission-ready throughout space.

We are mission-driven, and together, we are an extraordinary team.

About the Role

As a Thermal Analysis Engineer I at Sierra Space, you will initiate your career in thermal analysis within the aerospace industry. This entry-level position offers the opportunity to build foundational knowledge and skills, supporting the development and analysis of thermal systems under the guidance of senior engineers. You will work collaboratively within a team environment, applying basic aerospace principles and standards to contribute to routine technical problems.

In this role, you will assist in the analysis and development of thermal systems used in aerospace applications, leveraging your basic understanding of thermal analysis to support engineering projects. You will apply limited use and application of aerospace principles, standards, theories, first-order analysis, and concepts to contribute to technical initiatives. Under the supervision of senior engineers, you will help develop solutions to routine technical problems of limited scope and complexity. Additionally, you will prepare and document technical data, reports, and presentations to support project initiatives and team decision-making. You will communicate technical concepts and information clearly, both verbally and in writing, to team members and senior engineers, ensuring alignment and collaboration. Following instructions from senior engineers, you will work collaboratively within cross-functional teams to achieve project goals. Furthermore, you will participate in team meetings, technical reviews, and brainstorming sessions, providing input and gaining valuable insights from more experienced engineers.

About You

Our mission is driven by an unyielding commitment to advancing space-based technology in service of our customers and safeguarding national security. We seek individuals who are passionate about innovating beyond boundaries and relentlessly pursuing solutions that protect, preserve and empower - to join us in this critical mission.

We’re looking for team members who align with our values, mission and goals - while also meeting the minimum qualifications below. The preferred qualifications are a bonus, not a requirement.

Minimum Qualifications:

  • Requires Bachelor's degree in a related field (or equivalent work experience in lieu of degree).
  • Typically Entry-level with 0 - 2 years of experience.
  • Basic understanding of thermal analysis.
  • Limited use and application of aerospace principles, standards, theories, first-order analysis, and concepts.
  • Ability to work in a team and follow instructions from senior engineers.
  • Clear verbal and written communication of technical concepts and information.

Preferred Qualifications:

  • Experience with basic engineering software tools and applications related to thermal analysis such as Thermal Desktop, SINDA/FLUINT, ANSYS, or COMSOL for thermal analysis and simulation.
  • Proficiency in programming and scripting languages (e.g., Python, MATLAB) with application for thermal analysis tasks and post-processing results.
  • Strong organizational skills with the ability to handle multiple tasks and priorities effectively.
  • Demonstrated eagerness to learn and apply new concepts and methodologies.
  • Commitment to continuous learning and professional development in aerospace engineering.
  • Good teamwork and collaboration skills to work effectively within cross-functional teams.
  • Strong communication skills to clearly and effectively convey basic technical information to diverse audiences.
  • Basic problem-solving skills and the ability to contribute to routine technical solutions.

Compensation:

Pay Range:

$82,646.00 - $113,638.25

Your actual base compensation will be determined on a case-by-case basis and may vary based on job-related knowledge and skills, education, experience, internal equity and market competitiveness.

Elevate Your Career

At Sierra Space, we are committed to your personal and professional development. We empower you to make profound and meaningful contributions and foster a vibrant culture of collaboration, where teamwork ignites breakthrough innovations.

We also offer a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, and more.

Sierra Space is an industry-leading space and defense technology company providing satellites, spacecraft, and enabling mission systems and components. We deliver mission-proven technologies to our customers that safeguard our nation, protect space-based assets and enable space exploration.

Application Deadline: This role will remain posted until a qualified pool of candidates is identified.

Please note: Sierra Space does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to Sierra Space team members not through our approved vendor list or Talent Acquisition will be considered property of Sierra Space, and we will not be obligated to pay any referral fees.

Sierra Space Corporation is an equal opportunity employer and is committed to working with and providing reasonable accommodations to applicants with disabilities. If you need special assistance or a reasonable accommodation related to applying for employment with Sierra Space or at any stage of the recruitment process, please contact us.

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