Semiconductor Jobs in Oxford

IonQ · Oxford

Lead a three-person electronics team within the Systems group, acting as a player-coach with roughly 60% leadership and 40% hands-on design. Own the electronics roadmap for quantum systems, from schematic capture and PCB layout through board and system-level test, including mixed-signal, high-speed digital and QPU drive architecture, while moving prototypes to rack-ready production.

IonQ · Oxford

Owns the full lifecycle of electrical reliability fixes on operational trapped-ion quantum computers, from triaging and root-causing control and drive-electronics faults to designing, prototyping and retrofitting permanent solutions. Works across Operations, Science and Manufacturing on fleet-wide upgrades, standardising hardware and building telemetry to reduce downtime.

Lumai · Oxford

Owns dense, high-layer-count PCB layout from schematic handoff to fabrication release, covering stackups, HDI structures, controlled-impedance routing, differential pairs and BGA breakout for large FPGAs and custom ASICs. Acts as the main technical contact with fabricators and assembly houses, and sets the footprint libraries, design rules and CAD standards the team works to.

Lumai · Oxford

Own signal and power integrity across high-speed boards and packages, running pre-layout channel studies, post-layout SI analysis with IBIS-AMI models, and PDN impedance and DC drop work for high-current ASIC and FPGA rails. The role spans chip, package, interposer, board and optical engine boundaries, with heavy bench correlation using VNAs, TDRs and oscilloscopes to feed design rules.

Platform Recruitment · Oxford · £60,000 – £80,000 pa

Design and implement DSP algorithms for satellite communications and space-based sensors, translating system requirements into FPGA firmware using VHDL/Verilog. Work across the full firmware lifecycle, from simulation and testbench development to hardware integration and space-system qualification. Contribute technical leadership within a multidisciplinary team developing next-generation space technologies.

Archangel Lightworks · Oxford · £25,000 – £60,000 pa

Develops laser communication terminal optical and photonic subsystems, from requirements definition and trade-off analysis through modelling, breadboard testing, and assembly, integration and test. Works closely with the Product Technical Lead and optical engineering team, managing component suppliers and providing technical leadership of subsystem projects, with system-level testing and field trials.

Rise Technical Recruitment · Abingdon · £20 – £23 ph

Programming, setting and operating 3, 4 and 5-axis CNC milling machines with Heidenhain controls, manufacturing large precision components for scientific, medical, semiconductor and nuclear sectors. Involves working from technical drawings, self-inspection and documentation within a well-invested machine shop with CMM equipment.

Diamond Light Source · Didcot · £41,414 – £67,481 pa

Develop and debug HDL firmware for Xilinx FPGAs in Vivado, implementing full-cycle designs for magnet power supplies on the Diamond-II upgrade, including feedback control, filtering and interlock state machines. Work with ADCs, DACs, memory and microcontrollers, verifying designs via simulation and on-hardware testing, and collaborate with hardware and control engineers on Ethernet-based interfaces.

IonQ · Oxford

Integrate all features needed to operate quantum computers into complex multi-layer ion-trapping chips, guiding designs from requirements through layout and tape-out. Work closely with scientists and fabrication engineers on metal-track routing and photonics/CMOS interfaces, using GDSFactory in Python and Cadence. Hybrid role, three days per week in the Oxford office.

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 models correlated against schematic and measured silicon. Leads AMS methodology, sign-off criteria and reviews, runs Cadence AMS/Xcelium-Spectre co-simulation regressions, and mentors engineers through tape-out and bring-up.

IonQ · Oxford

Architect and maintain 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, collaborating with RTL engineers to debug and ensure reliable quantum control systems.

Lumai · Oxford

Own the embedded software bringing a novel optical AI accelerator to life: Linux kernel and bare-metal device drivers, firmware for control processors, and deterministic RTOS control tasks. Lead board support package bring-up on new custom silicon revisions, debugging with JTAG, scopes and logic analysers, and set the embedded team's coding standards and test methodology.

Lumai · Oxford

Builds firmware, peripheral drivers and RTOS-based control software for an optical AI accelerator, covering RTOS tasks and IPC, board support package bring-up, boot loaders and first-boot debugging on custom hardware. Works closely with a senior embedded engineer and hardware teams, writing unit and integration tests and maintaining embedded CI pipelines.

Lumai · Oxford

Owns a Python-based performance and power modelling framework predicting how photonic AI hardware runs real inference workloads, covering compute engines, interconnect, memory and bridge interfaces. Characterises operators against hardware, RTL or emulation, builds compiler-agnostic MLIR interfaces and runs benchmarks to give architecture and compiler teams a shared source of truth.

IonQ · Oxford

Lead validation and characterisation of analogue and mixed-signal ASICs for trapped-ion quantum processors, from test planning and platform development through first-silicon bring-up, debug and system integration. The role spans room-temperature and cryogenic (around 4 K) measurements on packaged parts, chip-on-board assemblies and bare die, with heavy Python automation and test PCB work.