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Associate Quantum Physicist (Quantum Computing)

InfleqtionLouisvillePosted 22 Oct 2026

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About this role

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 Assemble, align, calibrate, operate, and maintain neutral-atom quantum computing systems and subsystems. Execute defined R&D tasks involving quantum processor hardware, quantum-gate protocols, laser and optical systems, calibration, control, or system integration.

Translate experimental objectives into test procedures, measurement sequences, and data-analysis workflows with guidance from senior team members. Conduct experiments, analyze data, compare results with physics-based models, and communicate conclusions to the broader team. Develop and maintain Python-based tools for experiment control, data analysis, calibration, automation, and hardware integration. Test and troubleshoot assigned equipment and subsystems using established diagnostic methods.

Document experimental procedures, system configurations, analysis methods, and results. Support the commissioning, routine operation, maintenance, and continuous improvement of experimental systems. Collaborate with physics, software, electrical, mechanical, and systems-engineering teams. Requirements Master’s degree in atomic, optical, AMO, quantum physics, or a related field, or a bachelor’s degree plus at least two years of comparable research or professional experience.

Hands-on experience conducting experiments involving atomic, optical, quantum, or precision-measurement systems. Research or professional experience applying quantitative atomic or optical physics to experimental design, data analysis, or interpretation. 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.

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Experience using Python for experiment control, data analysis, automation, or hardware integration. Experience conducting and analyzing physics experiments or developing and testing 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 assembling, aligning, or maintaining laser and optical systems.

Experience with high-power or short-wavelength lasers and optical power-delivery systems. Experience measuring laser-frequency, phase, pointing, or intensity noise. Experience with analog electronics, RF systems, feedback control, or laboratory instrumentation. Experience with high-numerical-aperture imaging, beam shaping, or optical projection. Experience with ultra-high-vacuum systems or integrating optical, electronic, vacuum, control, and software subsystems.

Experience developing automated calibration, data-analysis, or experimental test tools. Familiarity with Linux, Git, command-line tools, and collaborative software-development practices. 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. Benefits Salary Range: per year 100,000 - 135,000 100% 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.

Source listing: workable_coldquanta

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