105 jobs for “quantum hardware engineer”
Rigetti Berkeley, United States US$115,000 – US$140,000 pa
Hands-on field role operating, maintaining and debugging RF and cryogenic systems for quantum processors deployed at customer sites worldwide. Owns dilution refrigerator cooldowns, vacuum and helium leak detection, RF hardware validation, and on-call support, with 35%+ international travel.
Rigetti Berkeley, United States US$165,000 – US$190,000 pa
Owns the mechanical architecture of quantum hardware systems, from room-temperature infrastructure down to the millikelvin core of dilution refrigerators. Leads the cryogenic signal chain design, thermal interface definition, simulation in COMSOL or ANSYS, prototype builds and qualification, working alongside quantum physicists and RF engineers.
Universal Quantum Haywards Heath
Lead the design and operation of a global supply chain for complex quantum computing hardware, managing end-to-end procurement, supplier relationships, and logistics. Work closely with engineering and cross-functional teams to mitigate supply risks and ensure timely delivery of critical components. Implement practical tools and processes to support scaling while ensuring compliance with international regulations.
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.
Universal Quantum Haywards Heath
Lead the operation, calibration and characterisation of ion-trap quantum computing hardware, owning experimental performance. Develop methods for quantum measurement and control, applying AMO physics to laser cooling, trapping and detection, and build models to guide optimisation. Mentors junior scientists within a multidisciplinary team.
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.
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.
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.
Infleqtion Kidlington
Designs, implements and optimises quantum algorithms for simulation, optimisation and hybrid quantum-classical workloads, working with hardware, control and research teams to turn theory into executable applications. Deploys software optimisations to the Superstaq cloud platform using industry-grade engineering practices, supports customers, and contributes to research publications and commercial proposals.
Pasqal London
Develops and benchmarks quantum error-correcting codes and fault-tolerant protocols tailored to neutral-atom hardware, including decoder design, logical error models and error budgets. Builds and maintains QEC simulation and emulation tools, analyses experimental data, and provides QEC-driven inputs to future QPU architecture design. Involves writing technical reports and scientific articles and representing the company at international conferences.
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.
Anonymous London
Own the full electronics development lifecycle for photonic computing hardware, from analogue and mixed-signal circuit design through schematic capture, PCB layout, prototyping and lab verification. Work alongside physicists, optical engineers and embedded software developers in a collaborative R&D team, testing with oscilloscopes and spectrum analysers and supporting integration and EMC work.
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.
Anonymous London
Develops FPGA-based digital control hardware for photonic quantum computing systems, owning architecture, RTL design, simulation, synthesis, timing closure and hardware bring-up. Works in a multidisciplinary R&D team with electronics engineers, physicists and software developers on high-speed, low-latency control and signal processing using ADCs, DACs and high-speed interfaces.
Quantinuum Cambridge
Leads engineering teams building core quantum languages, compilers and toolkits such as Selene, TKET, HUGR and Guppy, balancing people management with technical roadmap execution. Stays hands-on through design discussions, architectural reviews and code problem-solving, and guides tooling from research prototypes to production-grade software. Collaborates with hardware, theory and product teams across global sites, with occasional international travel.
