Lead Experimental Physicist

We are seeking a highly qualified Lead Experimental Physicist to join our team in Broomfield, CO
, contributing their expertise to cutting‑edge R&D efforts in the field of quantum computing. The ideal candidate will have experience leading teams of scientists and engineers in the development and operation of devices designed to manipulate qubits, quantum spin systems, or cold, trapped neutral atom or ion systems.

• Conduct experimental work in a research lab environment, collecting data on the performance of various methods and hardware prototypes.
• Review scientific results, identify areas for improvement, and implement enhanced processes and directions for further investigation.
• Perform design trade studies and analyses.
• Present scientific results internally, at conferences, and in publications.
• Develop project plans, schedules, and budgets aligned with broader company strategy.

• PhD must be completed prior to start date.
• Minimum of 8 years of experience (including Ph.D.) in one or more of the following areas: quantum computing, quantum information, atomic physics, laser and optics design, experimental control system development, or electronics design.
• Experience leading cross‑functional technical teams to deliver complex, high‑impact projects.
• Due to contractual requirements, must be a U.S. Person (U.S. citizen, permanent resident or green card holder, workers granted asylum or refugee status).
• Due to national security requirements imposed by the U.S. Government, candidates for this position must not be a People’s Republic of China national or Russian national unless the candidate is also a U.S. citizen.

• 10+ years of experience in scientific research and development, engineering, or leadership roles.
• Strong organizational and leadership skills.
• Experience with laser cooling and trapping of ions or neutral atoms.
• Experience performing simulation and modeling to inform design and experiments.
• Experience with laser systems, especially frequency‑stabilized diode lasers, optical cavities, and phase or intensity feedback loops.
• Experience with cryogenic systems.
• Experience with ultra‑high vacuum systems.
• Experience with electro‑optic devices, including photodetectors and light modulators.
• Experience designing and testing micro‑optical systems.
• Excellent written and oral communication skills, with published results in their field of research.

$160,000 - $200,000 a year

Incentive Eligible – Range posted is inclusive of bonus target when applicable. The pay range for this role is $160,000 – $200,000 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’s largest integrated quantum company, driving breakthroughs in materials discovery, cybersecurity, and next‑generation quantum AI. With a team of more than 600 employees, including more than 420 of them being scientists and engineers, we are leading the worldwide 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.

As we celebrate the International Year of Quantum, there has never been a more exciting time to be part of this rapidly evolving field. 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.

• 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.