Quantum Computing Jobs

Quantinuum · London

Develops novel quantum algorithms in computational topology and geometry, characterising resource requirements and noise-robustness, then implementing and optimising them on Quantinuum's quantum hardware using error mitigation and error correction. Works across the full quantum computing stack with hardware, QEC and software teams, and with academic and industry partners on quantum topological data analysis use cases.

Quantinuum · London

A speculative general-interest application rather than a defined role, inviting candidates with an interest or experience in quantum technologies to submit details for future openings. Work spans quantum hardware and software, including quantum chemistry, AI, machine learning/QML, encryption, QNLP and algorithms, across London, Cambridge and Oxford.

IonQ · Oxford

Validates and optimises trapped-ion quantum computers, prototyping coherent control and cooling schemes, calibrating and benchmarking qubit gates, and validating emerging trap technologies with integrated electronics and photonics. Involves coding and debugging experiments in Python or Rust and documenting findings within a fast-moving UK science team.

IonQ · Oxford

Owns mechanical design of ion-trap quantum computer hardware, from first requirements through manufacture and integration. Produces CAD assemblies, drawings and BOMs for cryostat, vacuum and cooling systems, routes cabling and optical fibre, and supports lab technicians. Works with scientists and hardware teams on complex multidisciplinary systems.

University of Strathclyde · Glasgow · £47,389 – £58,225 pa

Lead the commercial development of a compact cold-atom clock physics package, translating university research into a viable product. The role is based at CPI-TMD in Hayes after an initial 8-12 month placement at the University of Strathclyde, working with academic researchers and industrial engineers.

Infleqtion · Kidlington

Designs, analyses and implements fault-tolerant architectures for scalable quantum computation, developing error-correcting codes, decoders and fault-tolerant gate constructions tailored to neutral atom hardware. Works with hardware, control and compiler teams to model noise, optimise syndrome extraction and define logical performance metrics, bridging QEC theory and experimental implementation.

Rigetti · Berkeley, United States · US$180,000 – US$230,000 pa

Owns end-to-end deployment of quantum computing systems both on-premises at customer and partner sites and on the cloud platform, acting as the technical point of contact from site requirements through installation, validation and handoff. Combines DevOps work — Kubernetes, AWS, Terraform, CI/CD, observability — with on-site commissioning, SRE support and root-cause analysis, with international travel and on-call during installations.

Rigetti · Berkeley, United States · US$220,000 – US$250,000 pa

Lead a cross-functional software engineering team building platforms for quantum device design, chip fabrication workflows, physics-informed data analysis, and QPU characterization. The role is hands-on, spanning team management, architecture, and data pipeline work with Python, AWS, and streaming tools, while partnering closely with quantum hardware, fabrication, and research teams.

PsiQuantum · Warrington · £50,000 – £56,000 pa

Mechanical design role focused on precision hardware for optical quantum computing, covering enclosure and packaging design, thermal management, simulation and validation. Works closely with photonics, systems and architecture teams plus external suppliers, taking concepts from prototype build toward manufacturable systems.

PsiQuantum · Warrington · £78,900 – £92,900 pa

Translate computational tasks into abstract quantum-algorithm specifications, analyse asymptotic performance, and define problem instances beyond classical reach. Work with the Compilation team on explicit implementations and resource estimates, and lead research programs with industrial and academic partners across domains such as life sciences and sustainability.

University of Exeter · Exeter · £21,805 pa

A 3.5-year PhD modelling nonlinear quantum optomechanical devices, focusing on suspended graphene resonators coupled to superconducting microwave cavities. The student develops analytical and numerical models of device dynamics, examines limitations like parasitic coupling and decoherence, and designs protocols for non-classical mechanical states, working with theorists and experimentalists.

University of Nottingham · Nottingham · £35,608 – £38,784 pa

Conducts original research in quantum information and entanglement theory on an EPSRC/NSF-funded project studying entanglement in heterogeneous chemical reactions, combining quantum information theory, nanoscale sensing and open quantum systems modelling. Involves developing methods to quantify entanglement from experimental measurements, publishing in leading journals, contributing to grant bids, and coordinating meetings across UK and US teams.

University of Sussex · Brighton

Postdoctoral role in experimental quantum technology, combining trapped ions and photons to build a distributed quantum network. The work involves testing and characterising a multi-zone ion trap, implementing an efficient ion-photon interface based on strongly-coupled cavity-QED, and setting up a second system for a basic quantum network. The position sits within the EPSRC Quantum Technology Hub and a team led by Prof Matthias Keller.

University of Sussex · Brighton · £51,753 – £56,535 pa

Lead a Knowledge Transfer Partnership project to commercialise an optical atomic clock, working across CPI TMD Technologies and the University of Sussex. Day to day involves reviewing and redesigning atomic clock subsystems, sourcing components and suppliers, and testing, characterising and integrating the full system through a gate-stage new product introduction process.

PQShield · Remote (within the USA); Ideally Austin or California. Some travel to our offices will be required from time-to-time

Customer-facing technical role supporting sales of post-quantum cryptography software and hardware into large manufacturers, enterprises and semiconductor/security accounts. Involves requirements discovery, demos, statements of work and Q&A documentation, working closely with Sales, Engineering and Management. Open to experienced sales engineers or embedded/hardware engineers moving into sales, with 10-20% travel.