Quantum Computing Jobs

Universal Quantum · Haywards Heath

Lead testing of integrated electronic circuits and subsystems, designing and building analogue and digital electronics using CAD tools and test equipment. Document circuits and verification tests while collaborating with mechanical, software and physics teams to build test systems for quantum computers.

IonQ · Oxford

Owns full-chip mixed-signal modelling and verification for cryo-CMOS ASICs used in trapped-ion quantum processors, building Verilog-A/AMS and real-number SystemVerilog models correlated against schematic and measured silicon. Leads AMS methodology, sign-off criteria and reviews, runs Cadence AMS/Xcelium-Spectre co-simulation and regressions, and mentors engineers through tape-out and silicon bring-up.

Universal Quantum · Haywards Heath

Produce high-quality, full-custom, mixed-signal integrated circuit layouts, working across all levels from base cells to chip top-level. Collaborate closely with designers to meet circuit requirements and deliver DRC/LVS-clean layouts on schedule, implementing designs across a variety of fabrication processes.

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.

Infleqtion · Oxford

Designs, verifies and implements mixed-signal and analogue electronic systems for quantum products, covering signal-chain architecture, modelling and simulation, and digital/mixed-signal circuit design with DAC/ADC and FPGAs. Also handles PCB design and layout, RF shielding, cabling and routing, plus test plans and supplier engagement within a multi-disciplinary team.

PsiQuantum · Warrington

Develops scalable fibre-to-chip alignment schemes and opto-electronic packaging workflows for chip-based photonic integrated circuits at the UK R&D facility in Daresbury. Involves prototyping packaging flows, reviewing BOMs, sourcing materials with supply chain and external vendors, and transferring designs to manufacturing partners.

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.

PsiQuantum · Warrington · £99,400 – £116,900 pa

Lead a small team of quantum applications software developers while remaining hands-on, building simulators, resource estimators and circuit compilation pipelines for fault-tolerant quantum computing. The role combines people management with technical delivery, partnering with algorithm researchers and architects to turn quantum algorithms into practical, production-quality tools.

Rigetti · Berkeley, United States · US$160,000 – US$190,000 pa

Owns end-to-end delivery of complex quantum systems programs, building roadmaps, milestones and integration schedules across device fabrication, cryogenics, control hardware and software teams. Tracks readiness across hardware, firmware and software layers, manages cross-team dependencies and risks, and establishes scalable program management practices for research-driven deep-tech R&D.

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.

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 Bristol · Bristol · £40,704 – £51,258 pa

Develop next-generation entanglement-based quantum networks over fibre infrastructure, designing and demonstrating systems across lab, metropolitan and national testbeds. Research spans entangled-photon sources, single-photon detection, optical switching, wavelength routing, timing and synchronisation, and network control, with Grade J roles adding research leadership and mentoring.

Rigetti · Berkeley, United States · US$165,000 – US$190,000 pa

Lead the mechanical design and integration of cryogenic hardware for quantum computers, including cryostat internals, RF signal delivery and silicon device packaging inside dilution refrigerators. Work spans 3D CAD, FEA thermal/vibrational simulation, prototyping and supplier management, collaborating with quantum physicists and RF engineers.

Infleqtion · Kidlington

Builds and maintains CI/CD pipelines, container orchestration and infrastructure-as-code for integrated software, firmware and gateware, including hardware-in-the-loop testing rigs. Also owns lab system management, network and server administration, backup and recovery planning, and software security procedures for production systems. Split between Kidlington and the National Quantum Computing Centre at Harwell, with up to two days remote.

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.