Senior Quantum Physicist - Hardware and Control Lead

Infleqtion, Inc.; Madison (WI); On-site; USD 150,000 - 185,000; Full time

Benefits offered by this job

Salary range 150k–185k

Medical & dental benefits

Unlimited PTO

401(k) match

Equity program

Job summary

Infleqtion, Inc. in Madison, WI, seeks a highly skilled experimental physicist to advance neutral-atom quantum computing systems and subsystems. You will lead design, build, and optimization efforts for quantum hardware and control systems, working across physics, software, electrical, mechanical, and systems teams.

The role requires a PhD in a relevant field and hands-on experience with AMO/quantum experiments, lasers, and data-driven optimization, plus mentoring responsibilities.

Qualifications

• PhD or equivalent professional experience in atomic/optical/AMO/quantum physics or related field.
• Hands-on experience designing, building, and operating complex AMO/quantum-control experiments.
• Experience applying quantitative models to experimental design or laser/control systems.
• Familiarity with Linux, Git, and lab software-tools.

Responsibilities

• Design, integrate, calibrate, operate, and improve neutral-atom quantum computing systems and subsystems.
• Lead R&D projects involving quantum processor hardware, quantum-gate protocols, laser and optical systems, calibration, control, or system integration.
• Translate program goals into technical requirements, experimental plans, and measurable performance targets.
• Design and analyze experiments and physics-based models to identify performance limitations and guide technical decisions.
• Mentor junior team members and contribute to technical reviews and best practices.
• Develop Python-based tools for experiment control, data analysis, calibration, automation, and hardware integration.

Skills

Python programming

Experiment design

Data analysis

Technical leadership

Linux experience

Education

PhD in atomic/optical/AMO/quantum physics or related field

Tools

Python

Git

Lab automation software

Job description

Infleqtion, Inc. in Madison, WI, seeks a highly skilled experimental physicist to advance neutral-atom quantum computing systems and subsystems. You will lead design, build, and optimization efforts for quantum hardware and control systems, working across physics, software, electrical, mechanical, and systems teams.

The role requires a PhD in a relevant field and hands-on experience with AMO/quantum experiments, lasers, and data-driven optimization, plus mentoring responsibilities.