Lead Mechanical Designer: Cryo Vacuum Systems

Quantinuum; Broomfield (CO); On-site; USD 140,000 - 190,000; Full time

Job summary

Quantinuum in Broomfield, CO is seeking a Lead Mechanical Design Engineer to drive cryo-vacuum hardware development for next-gen trapped-ion quantum computing systems. You will work with scientists and system architects to turn complex cryogenic, vacuum, and optical requirements into robust mechanical designs and test plans.

The role emphasizes hands-on prototyping, design-for-assembly, and clear documentation of risks, trade-offs, and recommendations.

Qualifications

• Bachelor's degree minimum in a relevant engineering field.
• 7+ years of hands-on mechanical design with complex hardware.
• US person due to contractual and security requirements.
• Experience with cryogenic and vacuum systems is preferred.

Responsibilities

• Design mechanical hardware for cryogenic and UHV trapped-ion quantum systems.
• Develop ion-trap packages, cryogenic assemblies, vacuum-compatible structures, and precision mounting hardware.
• Analyze thermal loads, contractions, and structural stability to ensure reliability.
• Create CAD models, drawings, and interface definitions for cross-functional teams.
• Collaborate with vacuum, cryogenic, optical, electrical, and trap fabrication teams.

Skills

Mechanical design

Cryogenic hardware

Thermal management

FEA/analysis

GD&T

Prototype testing

Documentation

Education

Bachelor's degree minimum

Advanced degree preferred

Tools

3D CAD

Drawing release practices

Job description

Quantinuum in Broomfield, CO is seeking a Lead Mechanical Design Engineer to drive cryo-vacuum hardware development for next-gen trapped-ion quantum computing systems. You will work with scientists and system architects to turn complex cryogenic, vacuum, and optical requirements into robust mechanical designs and test plans.

The role emphasizes hands-on prototyping, design-for-assembly, and clear documentation of risks, trade-offs, and recommendations.