All jobs


Phasecraft Ltd

Phasecraft is the quantum algorithms company. We are building the mathematical foundations for quantum computing applications that solve real-world problems. Founded in 2019 by Toby Cubitt, Ashley Montanaro and John Morton, we are based in London and Bristol. In 2020 we completed a record £3.7m seed round for a quantum computing company in the UK, led by VC firm LocalGlobe.
Phasecraft’s unprecedented access to today’s best quantum computers – through partnerships with Google, IBM, and Rigetti – provides us with unique opportunities to develop foundational IP, inform the development of next-generation quantum hardware, and accelerate commercialisation of high-value breakthroughs.
We are looking to hire a Quantum Software Researcher to join our team. The ideal candidate will have experience in the theory and/or implementation of optimisation algorithms for gate-model quantum computers, or in classical optimisation or constraint satisfaction algorithms; or otherwise strong evidence of potential to contribute to these areas. Their work will initially focus on these topics, though they will have the opportunity to grow a portfolio of research activity across the breadth of Phasecraft’s interests. A background in quantum computing is not necessarily required, though in this case a successful candidate will have evidence of the ability to design and/or implement advanced algorithms for optimisation and/or constraint satisfaction.
Job Description
Undertake theoretical and/or applied research and/or software development for near-term quantum computing applications, with an initial focus on quantum algorithms and software for combinatorial optimisation and constraint satisfaction problems
Help to author publications, presentations, patent applications and similar resulting from the research
Work collaboratively in a small team made up of full-time staff and affiliated PhD students
Other activities as required to support the growth and success of Phasecraft
Location: Bristol
Skills, Qualifications and Experience
Essential criteria:
– Expertise in one or more of: quantum information and/or computation theory; theory and/or implementation of classical algorithms for optimisation or constraint satisfaction; quantum algorithm design and/or implementation; mathematical analysis of algorithms
– Ability to work independently on research projects and to work in a team
– Flexibility to work across different aspects of quantum software and underpinning theory
– Flexibility to work on other tasks required to support the growth and success of the company
Desirable criteria:
– PhD (or soon to receive one) in quantum information, quantum computation theory, theoretical computer science, or closely related field
– Coding in quantum software development environments (e.g. Cirq, QuEST, Qiskit)
– Experience of implementing algorithms on quantum hardware
– Strong publication track-record in relevant discipline
– Software development skills
– Enthusiasm for learning and novel research
– Excellent communication skills

How to apply

To apply, please send a CV, including details of two referees, and covering letter by email to

Cat Mora Director of Research Operations Apply for this job

Published on September 13, 2022

Interested in this job?

Apply now