We are seeking a Lead Physicist in our Broomfield, CO, location.

All applicants for placement in safety-sensitive positions will be required to submit to a pre-employment drug test.

• Build, validate, and deploy ultra-high vacuum (UHV) systems supporting both R&D and commercial quantum computing platforms
• Perform hands-on cleanroom assembly, integration, and validation of complex vacuum and cryogenic systems
• Own day-to-day operation and efficiency of the cleanroom production line, ensuring quality, safety, and throughput targets are met
• Identify and resolve manufacturing and quality issues using root cause corrective action (RCCA), data analysis, and continuous improvement methodologies
• Work closely with design teams to drive manufacturability, scalability, and reliability into system design for both current and future generation systems
• Develop, maintain, and improve work instructions, production documentation, inspection plans, and operator training materials
• Design and optimize manufacturing processes, production floor layouts and work cells to improve reliability, efficiency and scalability
• Typical time allocation: ~60% hands-on production and cleanroom work, ~20% continuous improvement and quality initiatives, ~20% design & development initiatives
• Travel required up to 10%

• Master’s or Ph.D. in Physics, Engineering or related field
• Strong domain knowledge of ultra-high vacuum (UHV), extreme-high vacuum (XHV), and cryogenic systems
• Experience with assembly and leak checking of ultra-high vacuum (UHV) systems
• Experience building and integrating highly complex equipment in a cleanroom environment
• Experience working in low-volume manufacturing environments
• Experience applying root cause analysis tools such as RCCA, fishbone diagrams, or similar structured problem-solving methods
• Experience developing work instructions, technical documentation, and operator training materials
• Proficiency with 3D CAD software such as Onshape
• Mechanical tooling or component design and design for manufacturability
• Strong organizational skills, technical ownership mindset, and ability to operate effectively in fast-paced environments

Compensation & Benefits:

Incentive Eligible – Range posted is inclusive of bonus target

The pay range for this role is $164,000– $205,000 annually. Actual compensation within this range may vary based on the candidate’s skills, educational background, professional experience, and unique qualifications for the role.

Quantinuum is the world leader in quantum computing. The company’s quantum systems deliver the highest performance across all industry benchmarks. Quantinuum’s over 650 employees, including 400+ scientists and engineers, across the US, UK, Germany, and Japan, are driving the quantum computing revolution.

By uniting best-in-class software with high-fidelity hardware, our integrated full-stack approach is accelerating the path to practical quantum computing and scaling its impact across multiple industries.

By joining Quantinuum, you’ll be at the forefront of this transformative revolution, shaping the future of quantum computing, pushing the limits of technology, and making the impossible possible.

A competitive salary and innovative, game-changing work

Flexible work schedule

Employer subsidized health, dental, and vision insurance

401(k) match for student loan repayment benefit

Equity, 401k retirement savings plan + 12 Paid holidays and generous vacation + sick time

Paid parental leave

Employee discounts

Quantinuum is an equal opportunity employer. You will be considered without regard to age, race, creed, color, national origin, ancestry, marital status, affectional or sexual orientation, gender identity or expression, disability, nationality, sex, or veteran status. Know Your Rights: Workplace discrimination is illegal

Applications will be accepted on an ongoing basis, there is no application deadline for this position.