Quantum Computing Jobs

IonQ · Oxford

Keeps a fleet of quantum computers running by root-causing mechanical, vacuum, cryogenic and thermal faults on live systems and prioritising fixes by uptime impact. Designs, prototypes and tests solutions to recurring failures, then writes assembly and upgrade instructions to roll changes into existing fleets, maintaining PLM records and ECRs so fixes carry into future builds.

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.

Rigetti · Berkeley, United States · US$180,000 – US$250,000 pa

Builds and maintains data-intensive Python backend services for Rigetti's internal software team, supporting quantum engineers and fab engineers with measurement, characterization and fabrication tooling. Work spans schema migrations, testing, CI, performance and observability, plus frameworks that let scientists use AI coding agents safely. Small senior team, no quantum background required.

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.

Infleqtion · Kidlington

Integrate RF, optical, electronic and third-party devices into complex quantum computing systems, translating system requirements into practical architectures, interconnects and control schemes. Perform bring-up, commissioning, fault isolation and EMI/EMC troubleshooting, and define verification and validation test plans. Work within multi-disciplinary teams of physicists, engineers and technicians.

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 – £56,000 pa

Mechanical design role focused on precision hardware for optical quantum computing, covering enclosure and packaging design, thermal management, simulation and validation. Works closely with photonics, systems and architecture teams plus external suppliers, taking concepts from prototype build toward manufacturable systems.

PsiQuantum · Warrington · £78,900 – £92,900 pa

Translate computational tasks into abstract quantum-algorithm specifications, analyse asymptotic performance, and define problem instances beyond classical reach. Work with the Compilation team on explicit implementations and resource estimates, and lead research programs with industrial and academic partners across domains such as life sciences and sustainability.

IonQ · Oxford

Owns a service or subsystem of the control plane that schedules and arbitrates access to trapped-ion quantum computers, keeping them calibrated and productive. Involves Rust, async programming, gRPC/REST services, PostgreSQL state machines, concurrency and failure handling, plus moving live systems onto new behaviour. Works closely with runtime, systems and operator teams.

IonQ · Oxford

Builds the control plane that schedules quantum programs, calibration routines and customer workloads onto trapped-ion hardware, arbitrating exclusive access and streaming results. Owns persistence, data models and migrations, plus tests and harnesses run against real machines and simulators. Works in Rust, PostgreSQL and gRPC alongside runtime, systems and operator teams.

IonQ · Oxford

Architect, develop and maintain advanced UVM/SystemVerilog verification environments for complex FPGA designs, defining verification plans with constrained-random testing and functional coverage. Build automated regression suites and CI pipelines, and debug issues with RTL designers to support quantum control systems.

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$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 · US or UK Locations

Deploys and operates Rigetti quantum systems at customer sites, owning technical work from initial bring-up through sustained cloud operation. Specialises in either systems integration (cryogenic hardware, qubit and fridge characterisation) or gate calibration (1Q/2Q gate performance, automated recalibration, production monitoring). Requires up to 25% international travel and close collaboration with internal R&D teams.