Quantum Computing Jobs

Staff FPGA Engineer

Design and develop FPGA-based signal processing and control systems for quantum computing hardware. Implement RTL modules, verify logic using simulation tools, and debug real-time control functions using lab equipment. Collaborate with cross-functional teams to deliver high-performance firmware for quantum control systems.

IonQ Oxford, 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, United Kingdom

Systems Engineer

This role involves leading systems engineering efforts in the development of quantum-based products, focusing on system-level design, requirements traceability, and integration of complex hardware and software systems. The engineer will work closely with physicists, hardware and software teams to ensure robust product lifecycle execution, from prototyping to scalable manufacturing. Key activities include modelling, risk assessment, and supporting verification and validation processes across multidisciplinary projects.

Infleqtion Kidlington, United Kingdom

Hybrid Permanent Clearance Required

Senior AMO Physicist - Inertial Sensing

The role involves developing atomic system designs for inertial sensing applications using atom-based quantum technologies. You will perform modelling, simulations, and analytical calculations, while integrating complex opto-mechanical systems, electronics, and software into quantum devices. The position requires close collaboration with physicists and engineers, conducting laboratory work from setup to system demonstration, and contributing to technical documentation, proposals, and publications.

Infleqtion Kidlington, United Kingdom

Hybrid Permanent

Photonic Layout Engineer

Design and integrate photonic components into multi-layer quantum processor chips, ensuring precise layout and compatibility with metal and CMOS routing. Collaborate with scientists and engineers to define design rules and advance photonic process design kits. Perform layout verification and produce reticle-scale files for commercial fabrication using Python-based tools.

IonQ Oxford, United Kingdom

Senior 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, United Kingdom

Senior Electronics Engineer

This role involves diagnosing and resolving electronics and control hardware issues in trapped-ion quantum computers, from root cause analysis to permanent design fixes. The engineer will lead reliability upgrades, standardize electronics across systems, and work closely with cross-functional teams to improve uptime and reduce operational costs. Key activities include PCB design, system-level testing, retrofitting live systems, and ensuring all improvements are documented and integrated into future builds.

IonQ Oxford, United Kingdom

Hybrid Permanent Clearance Required

Senior Software Engineer, Transport

Develop high-performance control software for trapped-ion quantum computers by creating frameworks that translate ion transport specifications into voltage waveforms. Collaborate with physicists and engineers to optimize transport operations, integrate physics simulations, and support scalable quantum computing systems. Work across disciplines to shape system architecture and enable closed-loop calibration for advanced quantum hardware.

IonQ Oxford, United Kingdom

Director, Systems Software

Leads the software team responsible for developing a full-stack system that controls and monitors trapped-ion quantum computers. Focuses on defining software architecture, improving devops and release processes, and scaling the engineering team. Works closely with quantum scientists and engineers to translate low-level experiments and quantum algorithms into functional software using Python and Rust.

IonQ Oxford, United Kingdom

Senior Optical Engineer

This role involves leading the design, analysis, and integration of complex optical systems for quantum computing and sensing applications, from concept through to testing. The engineer will work across multidisciplinary teams to develop high-precision optical systems involving laser delivery, modulation, and imaging, with responsibilities spanning component-level work to large-scale subsystems. The position emphasizes hands-on development, simulation-driven design optimization, and rigorous validation in a cutting-edge quantum technology environment.

Infleqtion Kidlington, United Kingdom

Hybrid Permanent

Embedded Systems Engineer - FPGA Platform

Develop embedded Linux software, firmware, and board-support packages for FPGA-based systems used in quantum RF and sensing applications. Integrate FPGA SoCs, microcontrollers, and peripherals into robust control and signal-processing platforms. Perform board bring-up, debugging, and validation in collaboration with multidisciplinary engineering teams.

Infleqtion Kidlington, Oxfordshire, United Kingdom

Hybrid

Quantum Software Engineer - QEC

Designs and implements quantum error correction (QEC) protocols for scalable, high-fidelity quantum computation, with a focus on neutral atom platforms. Develops custom decoders, models noise processes, and collaborates with hardware and software teams to translate theoretical QEC frameworks into practical implementations. Engages in research, simulation, and cross-team collaboration to advance fault tolerance in quantum systems.

Infleqtion Kidlington, United Kingdom

Hybrid Permanent

Quantum Software Engineer - Algorithms & Applications

Develops quantum algorithms and applications for near-term and fault-tolerant quantum systems, focusing on simulation, optimization, and hybrid quantum-classical workflows. Works across software, hardware, and research teams to implement and optimize algorithms using modern quantum SDKs and compiler toolchains. Contributes to customer support, proposal development, and scientific publication in high-impact journals.

Infleqtion Kidlington, United Kingdom

Hybrid Permanent

Senior AMO Physicist - Quantum RF

This role involves experimental research and development in atomic, molecular, and optical (AMO) physics for quantum RF sensor systems. The physicist will design and integrate complex opto-mechanical systems, lead high-value research projects, and collaborate with multidisciplinary teams to advance quantum technologies. A strong focus is on translating product requirements into atomic system designs and demonstrating working quantum devices.

Infleqtion Kidlington, United Kingdom

Hybrid Permanent