Principal Mechanical Engineer, Vacuum Systems & R&D

Cfsenergy; Milpitas (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

Commonwealth Fusion Systems is seeking a Principal Mechanical Engineer to join the R&D and equipment design team, focusing on end-to-end design of advanced thermal vacuum equipment and related machinery. You will lead mechanical integration, validate performance, and guide cross-functional collaboration in a fast-paced environment.

This on-site role requires technical leadership, deep expertise in vacuum and thermal mechanics, and the ability to mentor peers while delivering robust hardware for

Qualifications

• Designing and implementing high-performance hardware in vacuum environments.
• Mentoring team members in a fast-paced R&D setting.

Responsibilities

• Own end-to-end design, integration, and implementation of advanced thermal vacuum equipment and R&D machinery.
• Drive innovative architecture while maintaining procedural discipline for high-performance hardware.

Skills

Thermal-Mechanical Design

Mentoring

Vacuum Systems

Tools

Finite Element Analysis

3D CAD

Job description

Commonwealth Fusion Systems is seeking a Principal Mechanical Engineer to join the R&D and equipment design team, focusing on end-to-end design of advanced thermal vacuum equipment and related machinery. You will lead mechanical integration, validate performance, and guide cross-functional collaboration in a fast-paced environment.

This on-site role requires technical leadership, deep expertise in vacuum and thermal mechanics, and the ability to mentor peers while delivering robust hardware for