Quantum Systems Engineer

Job Summary:

Psi Quantum is looking for a Quantum Systems Engineer to design, build, and validate quantum subsystems for our photonic quantum computing platform.

This role focuses on implementing and testing key quantum optical experiments and subsystems, contributing directly to the realization of fault‑tolerant quantum computation. You will work across disciplines to integrate and validate system‑level performance.

• Design, build, and test quantum photonic subsystems and experiments.
• Implement and analyse quantum interference experiments, including Hong‑Ou‑Mandel measurements.
• Develop and validate systems involving single‑photon sources and detectors.
• Perform time‑tagged measurements and analyse photon correlation data.
• Contribute to the development and testing of entangling circuits and quantum state preparation.
• Collaborate with cross‑functional teams to integrate subsystems into larger quantum architectures.
• Debug complex experimental systems and identify performance limitations.
• Document and communicate experimental results to inform system design improvements.

• PhD in Quantum Physics, Quantum Optics, or a related discipline.
• Strong experimental experience in quantum optics or photonic quantum systems.
• Hands‑on experience with Hong‑Ou‑Mandel interference and related quantum optics experiments.
• Familiarity with single‑photon sources, detectors, and time‑tagging techniques.
• Strong data analysis and experimental design skills.

• Experience with entangling circuits and single‑qubit readout techniques.
• Knowledge of quantum information concepts and photonic quantum architectures.
• Experience with experimental automation and data processing (e.g., Python).
• Ability to work effectively in cross‑disciplinary teams.

Psi Quantum provides equal employment opportunity for all applicants and employees. Psi Quantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws.

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Daresbury, United Kingdom

£63,000—£70,000 GBP