Mechanical Engineer II (Thermal Analysis)

sierraspace; Louisville (CO); On-site; USD 94,000 - 130,000; Full time

Job summary

Sierra Space is seeking a Thermal Analysis Engineer II to advance complex aerospace projects, applying thermal analysis principles and vehicle-level concepts under supervision. You will contribute to the design and development of thermal systems within a collaborative team environment.

You will document data, reports, and presentations to support engineering decisions, participate in reviews, and communicate technical information clearly to engineers and stakeholders.

Qualifications

• Requires Bachelor degree in Engineering (Aerospace or Mechanical) or related field.
• Typically 2+ years of related experience.
• Strong understanding of thermal analysis.
• Basic vehicle-level analysis and system design.
• Basic use and application of aerospace principles and first-order analysis.

Responsibilities

• Conduct detailed thermal analysis for aerospace projects.
• Support development of thermal systems and vehicle-level designs.
• Prepare technical data, reports, and presentations for engineering decisions.
• Collaborate with cross-functional teams to integrate thermal solutions.

Skills

Thermal analysis

Vehicle analysis

Aerospace standards

Team collaboration

Education

Bachelor's degree in Engineering (Aerospace or Mechanical)

Tools

Thermal Desktop

SINDA/FLUINT

ANSYS

COMSOL

Job description

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 II at Sierra Space, you will advance your career by applying your knowledge and skills in thermal analysis to more complex aerospace projects. With a strong understanding of thermal analysis principles and basic vehicle‑level analysis, you will support the design and development of thermal systems within a collaborative team environment. You will work under general supervision, contributing to technical projects and ensuring the application of aerospace principles and standards.

In this role, you will conduct detailed thermal analysis and support the development of thermal systems for aerospace applications, leveraging your strong understanding of thermal analysis. You will apply basic use and application of aerospace principles, standards, theories, first‑order analysis, and concepts to contribute to engineering projects. Conducting vehicle‑level analysis and system design, you will ensure the integration of thermal systems within broader aerospace projects. Additionally, you will develop, prepare, and document technical data, reports, and presentations to support engineering initiatives and facilitate project decision‑making processes. Working under general supervision, you will follow established procedures and guidelines while contributing to technical problem‑solving and ensuring project success. Collaborating with cross‑functional teams, you will integrate thermal analysis solutions into broader engineering designs and projects. You will actively participate in technical reviews, project meetings, and brainstorming sessions, providing technical insights and feedback to drive innovation and progress. Furthermore, you will communicate technical concepts and information clearly, both verbally and in writing, to team members, senior engineers, and other stakeholders, ensuring alignment and effective collaboration.

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 degree in Engineering (Aerospace or Mechanical) or in a related technical field (or equivalent work experience in lieu of degree).
• Typically 2+ years of related experience.
• Strong understanding of thermal analysis.
• Basic understanding of vehicle‑level analysis and system design.
• Basic use and application of aerospace principles, standards, theories, first‑order analysis, and concepts.

Preferred Qualifications:

• Proficiency with 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) for automating thermal analysis tasks and post‑processing results.
• Strong organizational skills with the ability to manage multiple tasks and priorities effectively.
• Demonstrated eagerness to learn and apply new concepts and methodologies in thermal analysis.
• Commitment to continuous learning and professional development in aerospace engineering.
• Effective teamwork and collaboration skills to work seamlessly within cross‑functional teams.
• Strong communication skills to clearly and effectively convey technical information to diverse audiences.
• Basic problem‑solving skills and the ability to contribute to technical solutions within thermal analysis projects.

Compensation :

Pay Range:

$94,203.00 - $129,549.75

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.