Advanced Mechanical Design Engineer - Cryo, Optical, Vacuum Systems - 1088

The role

You will design mechanical hardware for trapped-ion quantum computing systems, including cryogenic, ultra-high vacuum and optical subsystems. You will work with scientists and engineers to turn technical risks into prototypes, test plans and clear recommendations.

What you will do

• Design mechanical hardware for trapped-ion quantum computing systems, including cryogenic, UHV/XHV and optical subsystems
• Support design of ion-trap packages, cryogenic assemblies, vacuum-compatible structures and optical subassemblies
• Manage heat loads, thermal contraction, mechanical stability, vibration and assembly tolerances
• Design prototype hardware and test fixtures that lab engineers can build and operate
• Design fiber and free-space optical systems with high tolerances and stability
• Design fiber optic interconnect assemblies, connectors and routing structures
• Support test planning for new materials, adhesives, coatings and vacuum-compatible components
• Work with lab engineers to evaluate outgassing, thermal performance, stability and failure modes
• Perform mechanical, thermal and tolerance analyses to guide design decisions
• Generate CAD models, drawings, assemblies and design documentation

Required qualifications

• Bachelor's degree minimum
• Minimum of 5+ years of hands-on mechanical design experience with complex hardware systems (Masters and PhD inclusive)
• U.S. Person: U.S. citizen, permanent resident or green card holder, or workers granted asylum or refugee status
• Not a People's Republic of China national or Russian national unless also a U.S. citizen

Nice to have

• Advanced degree in mechanical engineering, aerospace engineering, applied physics, materials science or a related field
• Strong written and verbal communication skills
• Experience with cryogenic systems, UHV vacuum systems, lasers and precision optics, or trapped-ion systems
• Experience with precision tolerancing, thermal management and structural stability
• Proficiency with 3D CAD tools and drawing release practices
• Experience with material selection for vacuum, cryogenic and low-magnetic environments
• Experience with thermal modeling, FEA, tolerance analysis, modal or structural analysis
• Experience designing test fixtures or validation experiments
• Experience with GD&T, vendor management, machined parts and design-for-assembly
• Experience with vacuum cleanliness, bake-compatible design, leak checking or outgassing tests

Benefits

• Competitive compensation
• Flexible work arrangements
• Employer-subsidized medical, dental and vision insurance
• 401(k) with company match and student loan repayment benefit
• Equity opportunities
• Generous paid time off, sick leave and 12 paid holidays annually
• Paid parental leave
• Employee discount programs

Before you apply

• Pre-employment drug test required for safety-sensitive positions
• Must be a U.S. Person due to contractual requirements
• Export control rules may require U.S. government authorization for candidates who are not U.S. persons

About the company

Quantinuum is a quantum computing company with more than 800 employees, headquartered in Broomfield, Colorado, with offices in the United States, United Kingdom, Germany, Japan and Singapore. It delivers a full-stack platform for quantum computing in real-world use.