Research Scientist in Quantum Communications

Toshiba Europe Ltd have been at the forefront of research in quantum technology, particularly quantum communications and quantum key distribution (QKD) for the past two decades. During this time they have made many breakthroughs, such as record high quantum communication bit rates, seamless classical-quantum network integration and the invention of new approaches for record long distances. Recently, Toshiba launched a new business unit to commercialise research outcomes and Toshiba QKD systems are now deployed in telecommunication networks across the world.

We invite applications for a Research Scientist (or Senior Research Scientist, depending on experience) position at the Cambridge Research Laboratory, working in the area of next-generation fibre‑optic quantum communication systems with significantly enhanced performance and new functionality, including new protocols such as Twin‑Field QKD (TF‑QKD). The successful candidate will join a dynamic team and play a leading role in developing new quantum communication technologies, leveraging ideas across the fields of quantum, optics, electronics and communications to design, conduct and analyse frontier quantum experiments. Research outcomes will be published in leading academic journals and presented at international conferences, alongside technology transfer to Toshiba’s quantum business division.

• Devising new schemes and building prototypes for quantum communications, QKD, TF‑QKD and quantum networking
• Building optical systems including lasers, modulators, detectors, optical fibres etc. and interfacing with high‑speed RF electronics
• Designing and implementing software to control experimental set ups and to simulate optical/quantum systems
• Interfacing with other team members to coordinate supporting high‑speed RF electronics and programmable logic (FPGA)
• Mentoring PhD students and junior staff
• Analysing experimental data, writing scientific papers, and delivering technical presentations, internally and internationally
• Communicating with collaborators in the UK, Europe and Japan

• PhD in Physics, Electronic Engineering or related discipline
• Several years of hands‑on research experience in optical and/or quantum systems
• Proven competence developing experimental setups using optical and electronic hardware
• Track record of impactful research in photonic/quantum systems or devices
• Deep knowledge of optics, fibre optics and electronics
• Good communication skills, both written and verbal
• Enthusiasm to learn new skills and pursue new knowledge, and a self‑starter team‑player mindset

• Knowledge and experience of quantum technologies, especially QKD
• Understanding of optical communications, networking and/or cryptography
• Competence in one or more software programming languages (e.g. Python) and version control platforms (e.g. git)
• Electronics design experience (e.g. PCB design / FPGA development)