Quantum Computing Jobs

Rigetti · US or UK Locations

Deploys and operates Rigetti quantum systems at customer sites, owning technical work from initial bring-up through sustained cloud operation. Specialises in either systems integration (cryogenic hardware, qubit and fridge characterisation) or gate calibration (1Q/2Q gate performance, automated recalibration, production monitoring). Requires up to 25% international travel and close collaboration with internal R&D teams.

Rigetti · Berkeley, United States · US$240,000 – US$275,000 pa

Lead the global deployment, integration and commissioning of on-premise quantum computing systems, building and scaling a Field Engineering organisation. Own site readiness, installation, acceptance and lifecycle support for superconducting processors, dilution refrigerators and RF/microwave hardware, acting as senior technical escalation point and travelling globally around 30-40%.

Infleqtion · Kidlington

Experimental AMO physicist role focused on translating product requirements into atomic system designs for quantum RF sensor systems. Involves modelling, simulation, testing and integrating opto-mechanical systems, electronics and software into quantum devices, working closely with a multidisciplinary team of physicists and engineers.

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.

Infleqtion · Kidlington

Experimental AMO physicist role focused on inertial sensing applications, translating product requirements into atomic system designs and running modelling, simulation and analytical calculations. You will integrate opto-mechanical systems, electronics and software into quantum devices, execute testing and verification plans, and collaborate with physicists, engineers and technicians in a multidisciplinary team.

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.

PQShield · Remote (within the countries we operate within; Some travel to our offices will be required from time-to-time

Owns the product roadmap for software-based security IPs, cryptographic libraries and firmware, defining how security software integrates with hardware IPs and SoC architectures. Acts as domain expert on classical and post-quantum cryptography, hardening products against side-channel, DPA and timing attacks, and authoring PRDs that translate crypto standards into engineering requirements. Works directly with founders and customers in a deep-tech semiconductor context.

Quantum Dice · Oxford

Customer-facing technical role translating defence and national security challenges into mathematical models, building prototypes on quantum-enabled simulators and probabilistic hardware, and benchmarking against classical solvers. Spans Solutions, Applied Research, Engineering and Commercial teams, leading projects from requirements capture to pilot under security classification and export control constraints.

Universal Quantum · Haywards Heath

Lead multidisciplinary systems engineering across electronic, mechanical, cryogenic, vacuum, optical, software and control domains, owning system-level rigour from concept to customer deployment. Define the systems engineering strategy, lifecycle, standards and toolset including requirements management, MBSE, modelling and configuration control, while chairing design, readiness, test and acceptance reviews. Build and mentor engineering teams across UK and international locations, maintaining system-level plans, dependencies and technical risks to meet programme objectives.

Universal Quantum · Haywards Heath

Designs RF PCBs and architecture for a custom RF delivery system, including cables and transmission lines, and defines specifications for key building blocks. Oversees RF verification and validation testing and documentation, working closely with electronics, ASIC, mechanical, software engineers and physicists on rapid proof-of-concept work.

Quantinuum · London · £2,500 pm

Interns join the UK Quantum Error Correction team to work on an active research project spanning architectural design, analysis and implementation of the QEC stack, from tensor networks and ZX calculus to fault-tolerant magic state gadgets and trapped-ion demonstrations. Based in London or Cambridge, the role sits in a research-focused group with close ties to hardware and software engineers, aiming at a publication and/or software libraries.

PsiQuantum · Warrington · £64,000 – £76,500 pa

Develops and evaluates advanced optical fibre for high-performance optical systems, combining simulation of modal properties, loss, dispersion and coupling with hands-on experimental measurement and verification. Works with internal photonics, systems and experimental teams plus external development partners to translate system requirements into fibre performance targets and steer design tradeoffs.

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.

IonQ · Oxford

This role involves leading the validation and characterisation of analogue and mixed-signal ASICs for trapped-ion quantum processors. Responsibilities include developing validation strategies, building reusable hardware and software, and conducting cryogenic measurements to ensure silicon acceptance.