We are seeking a Principal Physicist in our Brooklyn Park, MN location, to integrate and validate Helios systems. Helios is our current-generation quantum computer with 98 physical qubits and >99.9% two-qubit fidelities that is available through the cloud. Our first on-premises unit will be installed in Singapore with other locations to follow. The ideal candidate will have deep experience building, validating, and optimizing the performance of a complex scientific apparatus or commercial product based on atomic or similar quantum building blocks. Day-to-day work will involve complex problem solving; hands-on work with optical, mechanical, and electronic systems; coding; and the satisfaction of delivering a product to a customer. We are looking for a candidate with world-class expertise and drive to make sure Helios units are completed on time and to our high-quality standards.

• A deep knowledge of trapped-ion-based technology, high-performance quantum computing, and technical hardware integration and validation
• A proven track record of atomic physics research and development as evidenced by scholarly publications, successful program execution, and/or launched products
• Experience as a technical team leader driving work execution on complex technical projects requiring communication and coordination with cross-functional teams involving hardware engineers, software engineers, theorists, and technicians
• Experience with lasers, laser cooling, atom trapping, cryogenics, ultra-high vacuum systems, analog and digital electronics, laboratory hardware control, Python, physical modelling, and data analysis
• A strong drive to exceed performance and schedule expectations
• Commitment to documenting work via shared note taking as well as the creation and maintenance of standard work documentation, test plans, troubleshooting guides, and configuration documentation
• Strong communication and collaboration skills

Incentive Eligible – Range posted is inclusive of bonus target when applicable

The pay range for this role is $192,000 – $264,000 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