Senior AMO Physicist

Join QFX and help build the future of quantum hardware.

QFX is a UK-based deep‑technology company focused on developing advanced quantum hardware components for next‑generation computing, communication, sensing, and timing systems. The company specialises in precision atomic and photonic technologies, operating at the intersection of fundamental physics and engineering to deliver scalable infrastructure for the quantum technology ecosystem. QFX is headquartered in Oxfordshire and operates laboratory and manufacturing facilities at Begbroke Science Park.

QFX is seeking an Atomic, Molecular and Optical (AMO) Physicist to support the continued advancement of its core technology platforms. The role will contribute directly to the design, development, and validation of precision atomic systems, including atomic beam sources, laser‑based subsystems, and vacuum‑integrated quantum devices. The successful candidate will work within a multidisciplinary team and play a key role in translating cutting‑edge scientific concepts into robust, scalable, and commercially deployable hardware solutions.

• Apply theoretical and experimental AMO physics expertise to advance quantum device development
• Develop Python and Julia scripts for analysing raw experimental data and extracting actionable insights
• Integrate opto‑mechanical systems, electronics, and software into cohesive platforms
• Support equipment set‑up, system demonstrations, and technical troubleshooting
• Identify suitable materials and components to meet project specifications
• Maintain detailed documentation of project progress and proactively resolve issues

• Collaborate across multidisciplinary teams including physics, vacuum, electronics, and manufacturing
• Participate in design reviews, system architecture discussions, and technical decision‑making
• Mentor engineers and technicians working on optical systems

• Deliver core optical technologies enabling next‑generation quantum hardware
• Define architecture and standards for scalable optical subsystems
• Drive improvements in stability, performance, and manufacturability

• PhD in experimental atomic, molecular, and optical (AMO) physics
• Hands‑on experience with laser systems, including optical design and alignment
• Familiarity with control systems and signal processing
• Proficiency in Python or similar programming languages
• Strong written and verbal communication skills
• Collaborative mindset and ability to work effectively in team settings
• Passion for working in a dynamic, entrepreneurial environment
• Ability to adapt to the needs of a rapidly growing business and enthusiasm for training and development opportunities

• Experience integrating complex hardware/software systems
• Proficiency with ARTIQ experimental control software and/or experience in embedded system applications
• Knowledge of ultra‑high vacuum (UHV) systems and associated hardware
• Familiarity with 3D CAD tools such as Solid Works, electronic design software such as Altium, and optical or physics modelling software such as Zemax or COMSOL
• Hands‑on experience in electronic circuit design and debugging
• Project management experience
• Understanding of health and safety practices and commitment to safety culture

The role is primarily based in our office and laboratory facilities, involving regular interaction with technical equipment such as computers and laser systems. The position may require periods of sitting, standing, bending, and manual handling of equipment up to 16 kg. You’ll be expected to use standard office and laboratory tools efficiently, and any necessary personal protective equipment will be provided and must be used in accordance with our health and safety policies.

QFX is committed to making reasonable adjustments for candidates and employees in line with the Equality Act 2010.

Occasional travel (up to 10% of annual working days) may be required for conferences, collaborations, and site visits.

• Early‑stage startup with big ambitions
• Dynamic and fast‑moving working environment
• Work alongside world‑leading quantum scientists and engineers
• Flexible working and a culture of trust

• Competitive salary
• Generous and flexible annual leave
• Cycle‑to‑work scheme
• Tax‑efficient personal tech purchasing scheme

QFX is committed to fostering a diverse and inclusive workplace. We welcome applications from individuals of all backgrounds and experiences. If you’re excited about this role but don’t meet every requirement, we still encourage you to apply – your potential matters to us.