Quantum Computing Jobs

Sr. AMO Physicist

The role involves advancing neutral-atom quantum computing technologies through hands-on experimental work, including designing, testing, and improving quantum processing units. The physicist will collaborate with cross-functional teams to characterize systems, reduce noise and decoherence, and validate subsystems. This position is based at Quera's Harwell site and includes engagement with academic and industry partners.

Quera Computing Didcot, Oxfordshire, United Kingdom

On-site Permanent

Scientific Software Engineer - Compiler

Develops and maintains compiler infrastructure for neutral-atom quantum computers, designing domain-specific languages and integrating simulation tools into a full-stack pipeline. Works closely with physicists and hardware engineers to co-design compilers aligned with cutting-edge quantum error correction and hardware. Involves low-level intermediate representations, quantum program optimization, and cloud integration.

Quera Computing Didcot, Oxfordshire, United Kingdom US$102,400 – US$166,400 pa

On-site Permanent

Senior Software Engineer - Modern C++ & Linux

As a Senior Software Engineer, you will lead the backend development of advanced scientific instruments using Modern C++ and Linux. You'll work closely with scientists, engineers, and product managers to design, develop, and maintain the software that controls these instruments, ensuring they meet the high standards required for cutting-edge research.

KO2 Embedded Recruitment Solutions Abingdon, Oxfordshire, United Kingdom £65,000 – £75,000 pa

Senior Silicon Validation Engineer

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.

IonQ Oxford, Oxfordshire, United Kingdom

Staff Platform Engineer

This role involves building and maintaining the infrastructure that supports IonQ's quantum systems, both on-site and in the cloud. You will work closely with physicists, engineers, and other teams to ensure reliable, secure, and observable infrastructure, and lead strategic projects to improve the platform.

IonQ Oxford, Oxfordshire, United Kingdom

Mixed Signals Electronics Engineer - Compute

This role involves designing, verifying, and implementing electronic systems for quantum technologies, working closely with a multi-disciplinary team. Responsibilities include translating product requirements into signal chain architecture, performing simulations, and designing digital and mixed-signal circuits, PCBs, and RF isolation systems.

Infleqtion Oxford, Oxfordshire, United Kingdom

Hybrid Permanent

Solutions Engineer - Government, Defence and Critical Industries

This role involves working with defence and national security customers to identify high-value applications, build prototypes, and apply optimisation and AI methods. You will collaborate with engineers and researchers, lead projects, and work within defence constraints.

Quantum Dice Oxford, Oxfordshire, United Kingdom

Hybrid Permanent

QRF Lead Scientist

The QRF Lead Scientist will lead the development and integration of quantum technologies, focusing on building and commercialising atom-based quantum products. The role involves working on fundamental physics and leading-edge commercial applications, with the opportunity to work from home up to 2 days per week.

Infleqtion Oxford, Oxfordshire, United Kingdom

Hybrid Permanent Flexible

Senior Quantum Physicist

This role involves pioneering advancements in quantum computing using trapped ion technology and proprietary laser-free control methods. Responsibilities include prototyping coherent control schemes, calibrating quantum systems, validating trap technologies, and analyzing experimental data to push the boundaries of system performance.

IonQ Oxford, Oxfordshire, United Kingdom

Senior FPGA Verification Engineer

This role involves designing and implementing advanced UVM/SystemVerilog verification environments for FPGA-based quantum control systems. The engineer will develop simulation infrastructure, define verification plans with functional and code coverage, and collaborate with RTL teams to debug and ensure design quality. The position is central to ensuring the reliability of hardware supporting cutting-edge quantum computing systems.

IonQ Oxford, Oxfordshire, United Kingdom

Staff Software Engineer, Runtime

This role involves developing real-time control systems and low-level software abstractions for quantum computing hardware, working closely with experimental scientists and cross-functional teams. You'll shape core Rust libraries and the execution environment that transform quantum hardware into functional systems, with a focus on precision timing, system integration, and rapid iteration. The position emphasizes low-latency computing, API design, and tooling to support scientific experimentation and scaling toward fault-tolerant quantum computation.

IonQ Oxford, Oxfordshire, United Kingdom

Staff Analog Mixed-Signal Design and Modelling Engineer

This role involves developing high-fidelity behavioural models for cryo-CMOS mixed-signal integrated circuits used in quantum computing systems. You'll derive models from mathematical foundations, implement them in Verilog-A/AMS and real-number formats, and ensure correlation with schematic and silicon measurements. The position shapes modelling methodology and enables full-chip simulation across temperature extremes, directly supporting the development of control hardware for trapped-ion quantum processors.

IonQ Oxford, Oxfordshire, United Kingdom

Staff Software Engineer, System Orchestration

This role involves building and operating the software that keeps IonQ's quantum computers calibrated and running useful work around the clock. You will work on the control plane that schedules and prioritizes programs, ensuring the system remains reliable and efficient.

IonQ Oxford, Oxfordshire, United Kingdom