Research Scientist, Quantum Algorithms (Optimization) in London

We are seeking a Research Scientist to join our team in London, working on the development of quantum algorithms with a focus on solving optimization problems. This role offers the opportunity to contribute to cutting‑edge research aimed at advancing the capabilities of quantum computers and exploring their potential advantages for real‑world applications.

In this role, you will develop novel quantum algorithms and computational paradigms, and rigorously benchmark their performance against state‑of‑the‑art classical methods. You will implement these algorithms, or key algorithmic primitives, on Quantinuum’s quantum hardware and optimize their performance under realistic hardware constraints, leveraging techniques such as error mitigation and quantum error correction.

You will collaborate closely with researchers across the full quantum computing stack—including hardware, quantum error correction, and software teams—to translate theoretical advances into experiments on real quantum processors. The role also involves supporting collaborations with academic and industry partners to explore and develop promising use cases for quantum optimization algorithms. Researchers in this role are encouraged to publish their work in leading scientific journals and present their results at top international conferences.

• Conduct research on quantum algorithms with a focus on optimization problems
• Design, implement, and optimize quantum algorithms on simulators and Quantinuum’s quantum hardware
• Contribute to end‑to‑end resource estimation of quantum algorithms under realistic hardware constraints
• Communicate scientific results internally across teams and externally through publications and conference presentations

• PhD (or equivalent experience) in physics, mathematics, computer science, or a related field
• Research experience in quantum algorithms

• Demonstrated research track record through publications in quantum algorithms for optimization or related areas
• Hands‑on experience implementing quantum algorithms on quantum hardware
• Experience in mathematical optimization
• Excellent written and oral communication skills
• Programming experience in a high‑level language such as Python and familiarity with quantum software frameworks such as pytket, Guppy, or Qiskit

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: Quantinuum is the world leader in quantum computing. The company’s quantum systems deliver the highest performance across all industry benchmarks. Quantinuum’s over 650 employees, including 400+ scientists and engineers, across the US, UK, Germany, and Japan, are driving the quantum computing revolution.

By uniting best‑in‑class software with high‑fidelity hardware, our integrated full‑stack approach is accelerating the path to practical quantum computing and scaling its impact across multiple industries. By joining Quantinuum, you’ll be at the forefront of this transformative revolution, shaping the future of quantum computing, pushing the limits of technology, and making the impossible possible.

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.