Principal Numerical Physicist - 773

We are seeking a Principal Numerical Physicist in our Broomfield, CO location to apply their skills to the development of our next generation large-scale quantum computers. The Ideal candidate will have a deep expertise with E&M modeling techniques. The candidate should also have a solid understanding of cryogenic systems, magnetics, CAD, thermal modeling, test design, and prototyping. This diverse set of topics will be used to create state-of-the-art models and designs for a commercial quantum computer that advances key performance metrics in qubit count, run-time, and circuit fidelity. This role will shape core architectural decisions for next-generation quantum computing systems, influencing performance, scalability, and manufacturability. You will operate across physics, hardware, and system architecture boundaries, using simulation and analysis to drive high-impact technical decisions in an evolving and ambiguous design space.

Key Responsibilities:

• Work within the architecture team to develop producible, scalable next-gen quantum computers by providing simulations to support design of cryogenic UHV sub systems
• Develop and apply Multiphysics models for cryogenic behavior, and magnetic field systems
• Numerical tool development to assess electrical performance nano-fabricated RF ion traps
• Use simulation and analysis to drive architecture trade-offs and system-level design decisions
• Lead development of scalable simulation frameworks optimized for high-performance computing environments
• Model and analyze magnetic environments within complex vacuum systems to inform field delivery design
• Define system-level and subsystem requirements across hardware and physics domains
• Work with subsystem teams to identify potential technology insertions into system architecture
• Partner with experimental teams to design validation tests and improve model fidelity
• Generate and present design trade studies to cross disciplinary teams
• Communicate findings and design proposals to larger technical, management, and executive teams
• Mentor engineers and scientists in modeling and simulation best practices
• Operate effectively in ambiguous, early-stage design environments
  
  

YOU MUST HAVE:

• PhD Degree minimum
• 12 years of experience involving one or more of the following areas: quantum information, ion trapping, cryogenic UHV systems, atomic physics, FEA, optics, vacuum systems, or laboratory work in the physical sciences
• Due to Contractual requirements, must be a U.S. Person defined as, 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.
  
  

WE VALUE:

• 15 years of experience in scientific research and development, engineering, or leadership roles
• Experience leading a team in designing or operating cryogenic and/or XHV systems
• Hands-on experience with modeling, simulation, and/or laboratory systems
• Strong experience with COMSOL, ANSYS, or similar FEA tools
• Experience magnetic field design, shielding, and thermal modeling
• CFD experience for high-heat-load cryogenic systems
• Strong organizational and leadership skills, and experience in working with customers and partners
• Excellent written and oral communication skills, with published results within their field of research
• Experience contributing to hiring and building high-performing teams
  
  

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.

What’s in it for you?

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

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Compensation & Benefits:

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

The pay range for this role is $192,000 - $240,000 annually. Actual compensation within this range may vary based on the candidate’s skills, educational background, professional experience, and unique qualifications for the role.