Opto Mechanical Engineer

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.

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. Work from home permitted up to 2 days per week based on business needs and manager approval.

This role will support the quantum computing team's optomechanical engineering group and collaborate with a cross‑functional team of scientists and engineers whose mission is to build the world’s most useful quantum computing systems. As an opto‑mechanical engineer, you will be exposed to a wide range of optical design challenges, working alongside some of the brightest minds in the industry to translate experimental concepts into engineered solutions.

As a team, we encourage a proactive hands‑on approach, giving our engineers the opportunity to research, design, build and test opto‑mechanical systems in a diverse and collaborative environment.

• Collaborate with physicists and optical, electrical, mechanical, and software engineers to gather optomechanical system requirements.
• From source to atom: support the full beam delivery design, assembly and test cycle for optomechanical systems from the component level up through large sub‑systems containing hundreds of precisely aligned optical elements.
• Use optical and mechanical simulation tools (Solid Works Simulation, ANSYS Zeemax) to guide design decisions, communicating findings to project leaders both verbally and through design documentation.
• Create CAD models (Solid Works), drawings, and documentation packages in accordance with company design guidelines and industry best practice.
• Develop manufacturing processes to ensure accurate and repeatable assembly and alignment of the modules you create.
• Characterise optomechanical components and systems for performance, reliability, and stability by formulating and executing structured test plans.

• A Bachelor’s degree in Mechanical Engineering, Optical Engineering, Mechatronics, Physics or similar field(s), or equivalent vocational qualification(s) and at least two years of relevant experience.
• Expertise in free space and/or fibre optical system design.
• Hands on experience with precision alignment of optical and laser systems.
• Experience with 3D CAD software (Solid Works preferred).
• In depth understanding of GD&T and technical drawing practices (ASME or ISO).
• Fundamental understanding of laser beams and reflective and refractive optics design.
• Demonstrated understanding of laser safety principles and regulatory requirements, including hazard identification/classification, risk assessment, and the implementation of appropriate engineering, administrative, and procedural controls in the design and operation of laser systems.
• Experience with optomechanical fixturing in a controlled environment, with focus on ease of alignment and maintenance, and stability and reliability.
• Experience using optical test equipment including power meters, optical spectrum analysers, wavemeters, Fabry‑Perot interferometers, polarimeters, wave‑front sensors and photodiodes.
• Experience with optical simulation tools (ANSYS Zeemax).
• Familiarity with structural and thermal analysis tools and methods.
• Proficiency in MS Office applications.
• Excellent written and verbal communication skills.
• Entrepreneurial drive, intellectual agility and personal eagerness to develop with the needs of the business.
• Passion for solving complex problems and challenges in a highly technical and scientific environment.
• Ability to work comfortably in a highly collaborative, cross‑functional, team‑oriented, and matrixed environment.