Skip to main content
Posted August 18, 2026

Senior Mechanical Engineer III-IV (Thermal)

KELVIN THERMAL TECHNOLOGIES INC
Longmont, CO, US Full Time
110000USD - 160000USD per year

Job Description

Job Description

Kelvin Thermal is the world leader in advanced vapor chambers for cooling. We are a small company founded from a University of Colorado research lab and we develop ultrathin, flexible, and high heat flux designs. We are looking for a mechanical engineer to support continued advancement of our Thermal Ground Plane products. The Longmont location handles front-end R&D and then works with contract manufacturers and our partner teams for mass production. The job requires a split between office and lab work.

Key Responsibilities

· Lead prototyping efforts on new products including thermal/fluid design, tooling design, fabrication, and testing.

· Serve as the technical lead on customer-funded development programs, meeting technical milestones and project deliverables.

· Mentor junior engineers and provide technical guidance during design reviews.

· Influence technology roadmaps and future product strategy

Required Experience

· Bachelors degree or higher in Mechanical Engineering or related field

· Minimum 3 years relevant Mechanical or Thermal Engineering experience

· Strong mechanical design experience using CAD software (SolidWorks preferred).

· Good intuitive understanding of heat transfer

· Project-management skills

· Strong analytical, troubleshooting, and problem-solving skills.

· Hands-on experience building and testing prototypes.

· Understanding of Design for Manufacturing, Design for Assembly, and GD&T

Preferred Experience

  • Knowledge of product commercialization and technology transfer.

· Experience with thermal management technologies, electronics cooling, heat pipes, vapor chambers, TIMs, or advanced materials.

· Experience with FEA software for thermal/fluid modeling

\nCompany Description

Kelvin Thermal is a leading company in R&D in low power vapor chambers used in smartphones and high power ones used in AI data centers.

Company Description

Kelvin Thermal is a leading company in R&D in low power vapor chambers used in smartphones and high power ones used in AI data centers.

Sign up for Job Alerts