Quantum Physicist (Quantum Computing)
About The Position
Infleqtion is seeking a self-motivated, technically skilled physicist to advance its quantum computing mission and help commercialize atom-based quantum technologies. The role focuses on designing, building, calibrating, operating, and improving neutral-atom quantum computing systems and subsystems. It includes research and development involving quantum processor hardware, quantum-gate protocols, laser and optical systems, calibration, control, and system integration. Candidates with experimental AMO physics expertise and coherent control of quantum systems are encouraged to apply. The physicist translates technical goals into experimental plans, subsystem requirements, and measurable performance targets; designs and analyzes experiments and physics-based models; and independently carries defined technical work from planning through implementation and validation. The role also develops Python tools for experiment control, data analysis, calibration, automation, and hardware integration, and owns assigned subsystems through testing, troubleshooting, maintenance, documentation, and routine operation. The physicist collaborates across physics, software, electrical, mechanical, and systems-engineering teams, and may provide technical guidance to junior team members and supervise interns. Work is normally performed in an office and laboratory environment around technical equipment, including computers and lasers. Travel of up to 10% may be required. The position may require access to information protected under U.S. export control laws; an employment offer may be conditioned on authorization to receive controlled software or technology without sponsorship for an export license.
Requirements
- 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.
Nice To Haves
- 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.
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 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.
Benefits
- 100% company-paid medical, dental, and vision insurance.
- Short- and long-term disability insurance.
- Employer-funded Health Savings Account.
- Unlimited PTO.
- 401(k) match.
- Company-paid life and AD&D insurance.
- Flexible Spending Account.
- Paid FMLA and maternity/paternity leave.
- Employee Assistance Program.
- Student loan repayment.
- Equity program.
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
Education Level
Ph.D. or professional degree
