105 jobs for “quantum software developer”
Rigetti Fremont, United States US$170,000 – US$200,000 pa
Owns the health and performance of production PVD deposition modules used to fabricate superconducting quantum processors, developing, optimising and qualifying thin-film processes via SPC and data analysis. Works cross-functionally with equipment, facilities, integration and quantum engineering teams, with growing scope to set technical direction and mentor engineers.
Rigetti Berkeley, United States US$180,000 – US$230,000 pa
Owns end-to-end deployment of quantum computing systems both on-premises at customer and partner sites and on the cloud platform, acting as the technical point of contact from site requirements through installation, validation and handoff. Combines DevOps work — Kubernetes, AWS, Terraform, CI/CD, observability — with on-site commissioning, SRE support and root-cause analysis, with international travel and on-call during installations.
Universal Quantum Haywards Heath
Designs and architects a custom RF delivery system, including cables and transmission lines, defining specifications and trade-offs for key building blocks. Oversees RF design, simulation, integration, verification and validation testing, and contributes to proof-of-concept work. Works cross-functionally with electronics, ASIC, mechanical, software engineers and physicists, with involvement in project planning and risk management.
Infleqtion Kidlington
Develops embedded Linux software, firmware and board-support packages for Xilinx FPGA SoC platforms, using C/C++, Rust, Yocto or Buildroot, plus device-tree configs and low-level drivers. Works with physicists and electronics, FPGA and software engineers on control, acquisition, timing and communications systems for quantum RF sensors, covering board bring-up, integration, automated test and validation.
PsiQuantum Warrington £50,000 – £57,000 pa
Designs RF and high-speed electronics for controlling and reading out quantum photonic hardware, including electro-optic modulator drivers, SNSPD readout and low-latency control systems. Works alongside photonics and quantum teams, with FPGA-based design, debugging and lab measurement of complex cryogenic hardware.
PsiQuantum Warrington £64,000 – £76,500 pa
Develops ultra-low-loss optical interfaces between dissimilar waveguiding platforms, combining device concept design, optical simulation with BeamPROP or FDTD, and hands-on experimental validation of coupling and mode conversion. Works with internal photonics, systems and experimental teams plus external partners to mature practical, manufacturable interface solutions.
PQShield Ideally Tokyo, Japan; Some travel to our offices will be required from time-to-time
Lead sales strategy and execution for a post-quantum cybersecurity company in Japan, targeting enterprise clients in semiconductor, telecom, automotive, and security sectors. Drive market expansion by building relationships with key stakeholders and closing high-value technical IP deals. Collaborate with field application engineers and global teams to align product development with customer needs.
IonQ Oxford
Builds and runs the Kubernetes-based platform behind IonQ's quantum systems, spanning on-site clusters and cloud infrastructure. The role covers CI/CD pipelines, observability for lasers, cryogenics and vacuum hardware, remote development environments, and infrastructure as code with OpenTofu. It involves leading strategic platform projects and working closely with physicists, lab technicians and SRE colleagues.
Universal Quantum Haywards Heath
Design, model and test waveforms that transport ions quickly and efficiently on surface ion traps, including inter-module connections via UQConnect. The role also involves contributing to ion trap designs, building accurate physics models and optimisation software, and working with hardware teams to implement transport methods and analyse experimental results against predictions.
IonQ Oxford
Owns a group of non-realtime device controllers end to end, from API design and implementation to rollout and operational health, for hardware such as cryogenic compressors, vacuum pumps, lasers and cameras. Controllers are written in Rust on Linux, using gRPC/REST and instrument protocols like SCPI, Modbus, serial and Ethernet, working closely with systems teams and quantum scientists.
University of Sussex Brighton £51,753 – £56,535 pa
Lead a Knowledge Transfer Partnership project to commercialise an optical atomic clock, working across CPI TMD Technologies and the University of Sussex. Day to day involves reviewing and redesigning atomic clock subsystems, sourcing components and suppliers, and testing, characterising and integrating the full system through a gate-stage new product introduction process.
University of Strathclyde Glasgow £47,389 – £58,225 pa
Lead the commercial development of a compact cold-atom clock physics package, translating university research into a viable product. The role is based at CPI-TMD in Hayes after an initial 8-12 month placement at the University of Strathclyde, working with academic researchers and industrial engineers.
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.
Imperial College London London £50,733 – £62,001 pa
Designs optimised driving schemes for noise-resilient entangling gates with trapped ions, supporting an experimental partner in Innsbruck and a theory partner in Sofia. Combines analytical and numerical optimal control methods to identify and overcome imperfections limiting gate fidelities at finite temperature and without accurate calibration.
The University of Manchester Manchester £21,805 pa
Builds hybrid quantum-dot–rubidium interfaces for frequency conversion and storage of single photons in warm alkali vapour, combining device fabrication, cryogenic QD optics and atomic-vapour experiments. The work spans optical-setup design, III–V semiconductor and atomic physics, quantum optics and numerical modelling of EIT and four-wave mixing, with links to metro-link quantum network trials.
