Quantum Engineer - QPU Design in Reading

Quantum Engineer - QPU Design at Oxford Quantum Circuits, Reading, England, United Kingdom. A mid-level full time position in the Engineering team, listed under hardware engineering.

Help design the next generation of OQC's superconducting quantum processors. As a Quantum Engineer specialising in QPU design, you'll develop and simulate novel processor architectures, circuit layouts and superconducting components. Your work will help improve gate performance, readout fidelity and the scalability of OQC's quantum processors, directly contributing to our future technology roadmap.

The Role

Working within our Quantum Science & Exploratory Research team, you'll collaborate with senior researchers to take ownership of scientific and engineering projects across the full development lifecycle—from initial design and simulation through to implementation, data analysis and technical recommendations. You'll combine electromagnetic modelling, superconducting circuit theory, scientific software development and analysis of experimental data. You'll also help maintain OQC's QPU design toolchain, improve our simulation methods and translate complex scientific findings into practical design decisions. This role may involve occasional domestic and international travel for conferences and collaborative research programmes.

What You'll Be Working On

• Design and simulate novel superconducting quantum processors, optimising architectures, circuit layouts and device performance.
• Develop QPU designs that support low-error quantum gates, fast high-fidelity readout and increasingly scalable processor architectures.
• Build and improve advanced design methodologies for superconducting circuits using electromagnetic and circuit-level simulation.
• Maintain OQC's QPU design and simulation codebase, contributing through collaborative development, pull requests and code reviews.
• Analyse design and experimental data to identify processor limitations and translate findings into clear technical recommendations.
• Own scientific research projects from experimental or simulation design through to analysis, documentation and reporting.

Requirements

• A PhD, or equivalent multi-year commercial or R&D experience, involving the measurement, design or operation of quantum systems.
• Experience designing superconducting quantum processors, including circuit layout and electromagnetic simulation using tools such as HFSS, Sonnet, COMSOL or equivalent.
• Strong knowledge of microwave engineering and superconducting circuit theory.
• Experience in at least one relevant quantum or superconducting-device field, such as:
• Superconducting qubits
• Trapped ions, photonics, neutral atoms or solid-state spin systems
• Superconducting resonators or SQUIDs
• Microwave kinetic-inductance detectors
• Nano-electromechanical resonators or surface-acoustic-wave devices
• Strong Python skills, or experience with a comparable language, for automation, scientific analysis and data processing.

Nice to Have

• Advanced electromagnetic-simulation experience applied specifically to superconducting qubit design.
• Experience with qubit parameter-extraction methods such as black-box quantisation, energy-participation-ratio analysis or circuit analysis.
• Knowledge of numerical or computational optimisation methods applied to QPU design.
• Experience comparing experimental measurements with Hamiltonian models, circuit simulations or electromagnetic simulations.
• Experience developing or improving scientific design and simulation software.
• A track record of publishing scientific research or presenting technical results, particularly within superconducting circuits or quantum processor design.
• Experience supporting or mentoring junior researchers and sharing technical knowledge across multidisciplinary teams.

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