AMO Physicist - Quantum RF

Infleqtion is a global quantum technology company solving the world’s most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading edge commercial products, Infleqtion enables “quantum everywhere” through our ecosystem of devices and platforms.

Infleqtion has offices in the USA, United Kingdom, and Australia.
This is a full-time position based at our Kidlington, Oxford office. Work from home permitted up to 2 days per week based on business needs and manager approval.

As part of our strategy for growth in the UK, we are expanding our physics team and recruiting an experimental AMO Physicist to join our quantum RF team. In this role, you will actively contribute to ongoing research & development projects and assist in the exploration of new concepts and approaches for future quantum RF sensor systems. Working closely with a team of physicists and engineers, you will play a vital role in the collaborative efforts of the team.

• Translate product requirements into atomic system designs.
• Formulate and lead high-value research projects
• Execute modelling, simulation, and analytical calculations to design systems required to meet product performance.
• Design and execute testing and verification plans.
• Integrate complex opto-mechanical systems, electronics, and software into quantum devices.
• Perform technical tasks needed for the success of the project from equipment setup to system demonstration.
• Identify materials and components to meet project requirements.
• Document project progress and identify, track and resolve any project issues.

• Work collaboratively with team members against tight deadlines.
• Ability to work with multi-disciplinary teams to develop commercial and non-commercial products and/or draft new quantum-led projects.
• Comfortable working in a fast-paced, evolving environment where priorities may shift based on project needs and technological advancements.
• Open to learning new techniques, integrating feedback, and collaborating with multidisciplinary teams to navigate ambiguity effectively.
• Ability to assess complex situations, adapt quickly, and make informed decisions under uncertainty.

• Contribute to external reports and publications, author/co-author papers, proposals, presentations and reports, give invited talks, attend project workshops and conferences.
• Explain and present complex quantum systems to internal and external stakeholders with a wide range of technical and non-technical backgrounds.

• PhD in experimental atomic, molecular, and optical (AMO) physics
• Rydberg physics and their interactions, particularly when applied to Rydberg-atom electrometry
• Working knowledge of control systems and signal processing
• Proficiency in a programming language (e.g. Python, Rust, C++)
• Proficient in MS Office
• Ability to problem-solve and debug complex systems comprised of optics, analogue and digital electronics, software and quantum devices
• Entrepreneurial drive, intellectual agility and personal eagerness to develop with the needs of the business
• Good verbal and written communication skills, able to effectively share information with technical and non-technical staff, both in writing and orally
• Good collaboration skills, able to work in a team environment where engagement and participation are an expected part of successful job performance.

• Substantial experience post-PhD manipulating atoms, ions, or molecules with light
• Proven track record of integrating complex hardware and software into systems
• Familiarity with…