Quantum Physicist (Quantum Computing)

Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. As a deep-tech startup we embrace a results-driven fast-paced and customer-focused approach to innovation. We are seeking self-motivated energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward. We encourage applications from experimental physicists with expertise in Atomic Molecular and Optical (AMO) physics particularly those with experience in the coherent control of quantum systems such as ultracold atoms trapped ions and diamond NV centers.

Role and Responsibilities

• Design build calibrate operate and improve neutral-atom quantum computing systems and subsystems.

• Execute R&D projects involving quantum processor hardware quantum-gate protocols laser and optical systems calibration control or system integration.

• Translate defined technical goals into experimental plans subsystem requirements and measurable performance targets.

• Design and analyze experiments and physics-based models to understand system behavior and guide technical decisions.

• Independently execute well-defined technical work from planning through implementation and validation.

• Develop Python-based tools for experiment control data analysis calibration automation and hardware integration.

• Own assigned subsystems through testing troubleshooting maintenance documentation and routine operation.

• Collaborate with physics software electrical mechanical and systems-engineering teams.

• Provide technical guidance to junior team members and supervise interns as appropriate.

• PhD in atomic optical AMO quantum physics or a related field or at least four years of comparable research or professional experience.

• Hands-on experience conducting experiments involving atomic optical quantum or precision-measurement systems.

• Experience applying quantitative atomic or optical physics models to experimental design or to the specification of laser optical RF or control systems.

• Hands-on experience with lasers and optical systems together with related technologies such as acousto-optic or electro-optic modulators RF instrumentation imaging systems or ultra-high-vacuum equipment.

• Experience using Python for experiment control data analysis automation or hardware integration.

• Evidence of designing and analyzing physics experiments or developing an experimental subsystem.

It is a plus if you have:

• Experience with neutral atoms trapped ions Rydberg physics optical tweezers quantum-gate protocols or another coherent-control platform.

• Experience with high-power or short-wavelength lasers and optical power-delivery systems.

• Experience characterizing or mitigating laser-frequency phase pointing or intensity noise.

• Experience with analog electronics RF systems or feedback control.

• Experience with high-numerical-aperture imaging beam shaping or optical projection.

• Experience integrating optical electronic vacuum control and software subsystems.

• Familiarity with Linux Git command-line tools and collaborative software-development practices.

If you are overqualified for this role consider applying to our senior-level role

Note

This position may require access to information protected under U.S. export control laws and regulations for quantum computing technology. Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license.

WORKING CONDITIONS and PHYSICAL REQUIREMENTS

Work will normally be performed in an office and laboratory environment and around technical equipment including computers and lasers. We ask that candidates be able to efficiently use automated office equipment such as laptops copiers and printers; able to effectively engage in communications (via phone computer or in-person). Any required Personal Protective Equipment will be provided and must be properly used in accordance with company requirements.

TRAVEL

Up to 10% travel may be required.

NOTE: Infleqtion does not accept unsolicited resumes from agencies. Infleqtion is not responsible for any fees related to unsolicited resumes.

• Salary Range: per year 135000 - 170000
• 100% company-paid medical dental vision short/long-term disability
• Employer-funded Health Savings Account
• Unlimited PTO
• 401(k) match
• Company-paid Life and AD&D Insurance
• Flexible Savings Account
• Paid FMLA Maternity/Paternity Leave
• Employee Assistance Program
• Student Loan Repayment
• Equity Program

Notice to Recruitment Agencies:

Infleqtion does not accept unsolicited resumes from agencies. Infleqtion is not responsible for any fees related to unsolicited resumes.

Required Experience:

IC