ABOUT US 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. Our mission is to commercialise atom-based quantum products that provide orders of magnitude improvements in performance and computing applications.  LOCATION    Infleqtion has offices in the USA, United Kingdom, and Australia. This is a full-time position split between our Kidlington, Oxford office and the National Quantum Computing Centre, Harwell. Our flexible working policy enables all full-time employees to work up to 2 days a week from home as work permits.  POSITION SUMMARY  As part of our strategy for growth in the UK, we are expanding our Physics Department and recruiting an experimental Senior AMO Physicist to join our neutral atom quantum computing team. In this role, you will actively contribute to ongoing research projects and assist in the exploration of new concepts and approaches for future quantum computing systems. Working closely with a team of physicists and engineers, you will play a vital role in the collaborative efforts of the team.  JOB RESPONSIBILITIES   Project Support   Translate product requirements into atomic system designs.   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.  Team Collaboration   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  Stakeholder Engagement   Contribute to external reports and publications, author/co-author papers, proposals, presentations and reports, give invited talks, attend project workshops and conferences.  Requirements What you will bring to the team:     Technical Knowledge   PhD in experimental atomic, molecular, and optical (AMO) physics  Atom trapping using tightly focused laser beams  Rydberg physics and their interactions   Experience working with laser systems; optical design, alignment, and control  Working knowledge of control systems and signal processing  Proficiency in a programming language (e.g. Python)  Entrepreneurial drive, intellectual agility and personal eagerness to develop with the needs of the business.  Proficient in MS Office  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.   Experience   Demonstrable laboratory experience manipulating atoms, ions, or molecules with light   Proven track record of integrating complex hardware and software into systems  Understanding of ultra-high vacuum  Familiarity with mechanical, optical, and electronic design packages (e.g. Solidworks, Zemax, Altium)   Prior experience in project management is a plus.   Understanding of Health, Safety, and Environment (HSE) practices and modeling workplace safety culture.    WORKING CONDITIONS & PHYSICAL REQUIREMENTS   Work will normally be performed in an office and laboratory environment and around technical equipment including computers and lasers.  Able to sit, stand, bend, lift and carry up to 15 kg without assistance.  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.  Benefits STARTING COMPENSATION    In addition to your base compensation, we offer a generous Total Rewards program which includes:    Competitive salary   Unlimited PTO   Generous company 10% pension contribution regardless of employee contribution   Cycle to work scheme  Tax efficient technology schemes   Incentive Stock Option Plan   BUPA Private Healthcare Insurance once probationary period is successfully completed    CONTACT INFORMATION  If you’re excited about this role but don’t meet every requirement, we’d still love to hear from you! Apply, and we’ll be in touch. If you need assistance or accommodation, please feel free to contact us at hr@coldquanta.com.