Quantum Cryptography Algorithms Scientist

London, Cambridge or Oxford /
Science & Technology – Cyber & Quantum Technologies /
Quantinuum is seeking to hire a highly motivated scientist to work in the Quantum Cryptography research team. In this role you will have the opportunity to design, prototype and implement cutting-edge algorithms used in quantum information theory, such as randomness extractors, developed together with the theorists of the team.
The team comprises varied profiles and personalities, with expertise in quantum information theory, mathematics, information security, computer science and quantum optics. Moreover, when developing a product from our research, we have the opportunity to collaborate with the experimental quantum optics group and the engineers in the company.
You will be supported and given time to learn in order to deeply understand the algorithms and their purpose to obtain the best results. Ideally, in collaboration with other members of the team, you will be capable of taking a research paper and turning an abstract (e.g. non-explicit) algorithm into code.

Location: London, Cambridge or Oxford (remote and flexible working available within the UK).


    • Ability to perform correctness and runtime analysis of algorithms.
    • Ability to implement and test new algorithms in Python.
    • Familiarity with numerical analysis and optimisation, (e.g. using cvxpy, scipy, noisyopt).
    • Interest in quantum information and quantum computer science in general.


    • Graduate-level experience in computer science, mathematics, physics, or a related field.
    • Experience working on a topic involving quantum.
    • Software development experience in a high performance language such as (C/C++, Rust)
    • Ability to take a theoretical paper and turn it into a performant algorithm.
What is in it for you?
Working alongside a highly talented team, with leading names in the quantum computing industry. We offer a highly competitive package, equity, 28 days of paid holiday (in addition to public holidays), a workplace pension, a positive approach to flexible working and enhanced parental and adoption benefits.

About Us:

Science Led and Enterprise Driven. 

Our team of scientists is leading the way in the development of quantum computing. The world’s largest integrated quantum computing company, we united Cambridge Quantum’s advanced software development with Honeywell Quantum Solutions’ high-fidelity hardware to accelerate quantum computing. With full-stack technology, we’re scaling quantum computing and developing applications to solve the world’s most pressing challenges. We could be even better with you!

At Quantinuum, we believe quantum information systems will revolutionize the way we work and live. We are leading the way by helping our customers develop quantum-enabled solutions that provide a competitive-edge in their markets. 

We’re hiring the world’s best talent to make it happen. Join us! https://www.youtube.com/watch?v=ErQOKNC2O38  

Please note that employment with us is subject to successfully passing our pre-employment screening checks. We are an inclusive equal opportunity employer. You will be considered without regard to age, race, creed, color, national origin, ancestry, marital status, affectional or sexual orientation, gender identity or expression, disability, nationality, sex, or veteran status.