Latest software engineer Jobs

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 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

Technical Product Manager (Software Security & Firmware)

This role involves defining and managing the product roadmap for security software, firmware, and cryptographic libraries that integrate with hardware IPs in a post-quantum secure environment. You'll work closely with customers, architects, and security researchers to harden firmware against hardware-level attacks like DPA and SCA, while translating cryptographic standards into technical requirements. The position demands deep technical expertise in embedded systems, RISC-V/Arm architectures, and end-to-end security integration within complex SoC environments.

PQShield United Kingdom

Hybrid Permanent

Chief Platform Architect - 801

Lead the technical vision and architecture of a high-performance quantum software developer platform, focusing on scalable access portals, hybrid workflow orchestration, and secure cloud-based application delivery. Mentor senior engineers, define coding standards, and drive the technical roadmap in close collaboration with hardware teams. The role involves shaping platform engineering practices and enabling both internal and external developers through reusable components and robust APIs.

Quantinuum United States US$208,000 – US$260,000 pa

Hybrid Permanent

RF - System Designer

Design and lead the architecture of RF systems for quantum computing hardware, including transmission lines to quantum chips. Define specifications for end-to-end RF delivery components and oversee simulation, integration, and testing processes. Collaborate across disciplines including electronics, ASIC design, mechanics, and physics to implement cutting-edge RF solutions in a fast-paced R&D environment.

Universal Quantum Haywards Heath, United Kingdom

On-site Permanent Clearance Required

Sr. Director, Offering Management – Quantum Developer Platform - 836

This role involves leading the strategy and execution of a cloud-based quantum developer platform, simplifying quantum workflows, and aligning platform capabilities with quantum hardware roadmaps. The Sr. Director will define platform features, establish KPIs, and champion best practices for developer experience, while partnering with engineering and ecosystem teams to drive adoption and growth.

Quantinuum United Kingdom

On-site Permanent

Field Applications Engineer (FAE)

Act as a technical liaison between sales and engineering teams, supporting the integration of post-quantum cryptography solutions into semiconductor, security, and enterprise clients across North America. You'll demonstrate complex technical solutions, gather customer requirements, and ensure smooth technical onboarding, while collaborating globally to shape product direction. The role involves 10–20% travel and deep engagement with both engineering teams and C-level stakeholders.

PQShield United Kingdom

Quantum Engineer

Develops and characterizes superconducting quantum processors through experimental physics and quantum control techniques. Focuses on improving qubit performance, gate fidelity, and implementing quantum error correction. Works across device design, fabrication, and control systems in a cross-functional R&D environment.

Rigetti United States US$155,000 – US$200,000 pa

On-site Permanent

Electronics Engineer

Designs and develops RF and high-speed electronic systems for quantum photonic hardware, including electro-optic modulation, low-latency control, and readout systems for superconducting nanowire single-photon detectors. Works closely with photonics and quantum engineering teams to integrate electronics into advanced quantum computing systems using silicon photonics. Involves FPGA-based control, signal integrity optimization, and testing in lab environments.

PsiQuantum Runcorn, WA7 1UP, United Kingdom £50,000 – £57,000 pa

Photonic Layout Engineer

Design and layout photonic integrated circuits (PICs) for quantum processor units, integrating photonic components into multi-layer chips with on-chip light delivery. Collaborate with scientists and engineers to define design rules, produce tape-out-ready layout files using Python-based tools, and verify layouts through DRC and LVS. Contribute to custom Process Design Kits and document mask design processes for fabrication in commercial foundries.

Oxford Ionics Oxford, United Kingdom

On-site Permanent

Staff FPGA Engineer

Design and develop FPGA-based signal processing and control systems for quantum computing hardware. Develop RTL modules, simulate and verify control algorithms, and implement firmware for high-speed waveform generation and digital control loops. Work closely with hardware and software teams to deliver real-time quantum control systems using Xilinx Ultrascale+ devices and industry-standard tools.

Oxford Ionics Oxford, United Kingdom

On-site Permanent

Integrated Photonics Engineer

Design and conduct experiments to characterize advanced integrated photonic circuits for quantum computing systems. Develop automated test workflows, analyze optical device performance, and collaborate with design teams to refine photonic components such as directional couplers, interferometers, and electro-optic modulators. Work within a high-tech R&D environment focused on scaling fault-tolerant quantum computers using silicon photonics.

PsiQuantum Runcorn, WA7 1UP, United Kingdom £45,000 – £55,000 pa

On-site Permanent

Senior Quantum Engineer, Gate Calibration

Designs and executes experiments to improve two-qubit gate fidelity on superconducting quantum processors, identifying error sources and implementing pulse engineering and calibration solutions. Develops robust, scalable calibration methods and provides feedback to hardware teams. Works across device physics, control systems, and software to advance quantum processor performance toward error correction.

Rigetti United States US$175,000 – US$200,000 pa

SC Cleated Field Solutions Engineer

Act as a technical bridge between clients and internal teams by delivering product demonstrations, building proof-of-concepts, and translating security requirements into technical solutions. Support pre-sales and post-sales activities with hands-on expertise in secure infrastructure, networking, and cryptography, while engaging stakeholders from engineers to executives.

Experis London, United Kingdom £550 – £650 pd

Hybrid Contract Clearance Required

Director of Technology - Quantum

Lead the strategic development and delivery of quantum and photonics technology programmes across research, industry, and government stakeholders. Drive collaborative R&D initiatives, define technology roadmaps, and mentor technical teams focused on software, algorithms, and use cases—without hardware development. Shape national capability by translating emerging quantum technologies into practical applications and informing policy through evidence-based experimentation.

Digital Catapult London, United Kingdom £100,000 – £130,000 pa

Hybrid Permanent