Latest quantum software developer Jobs

General Interest in working for Quantinuum - London-Cambridge-Oxford

This is a general interest application role for candidates with experience or interest in quantum technologies. The position serves as a talent pool for future openings across quantum hardware, software, quantum chemistry, AI/ML, encryption, and algorithms. Applicants may be contacted for specific roles in London, Cambridge, or Oxford as opportunities arise.

Quantinuum United Kingdom

On-site Permanent

Senior AMO Physicist

This role involves advancing neutral atom quantum computing systems through experimental physics and system design. The Senior AMO Physicist will design and integrate complex opto-mechanical systems, perform simulations, and lead testing and verification efforts. Collaboration with multidisciplinary teams and stakeholder communication are key, with work split between Oxford and Harwell, including partial remote work.

Infleqtion Harwell, United Kingdom

Hybrid Permanent

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

R&D Scientist, Quantum Algorithms

Design and implement quantum algorithms focused on solving differential equations, with opportunities to publish and collaborate across the quantum computing stack. Work on real-world applications using high-fidelity hardware and contribute to end-to-end resource estimation under realistic constraints.

Quantinuum London, United Kingdom

Hybrid Permanent

Senior Photonics Engineer, Optical Interfaces

Develops ultra-low-loss optical interface solutions between dissimilar waveguiding platforms using photonic device design, simulation, and experimental validation. Focuses on mode conversion and coupling for scalable quantum computing systems. Works closely with internal teams and external partners to mature practical, manufacturable solutions.

PsiQuantum Runcorn, WA7 1UP, United Kingdom £64,000 – £76,500 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

Sales Director - Japan

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.

PQShield United Kingdom

Technical Product Manager (Hardware Security & IP)

This role involves defining and driving the product roadmap for hardware security IP and post-quantum cryptography solutions within a deep tech semiconductor startup. You'll act as the technical bridge between engineering, security, and business teams, translating cryptographic standards into hardware requirements and guiding integration with customer systems. The position requires deep technical expertise in SoC architecture, security IP, and end-to-end product development in the context of RISC-V and post-quantum security.

PQShield United Kingdom

Remote Permanent

Ion Transport Designer

The role involves designing and modelling waveforms for fast and efficient ion transport on surface ion traps, including inter-module connections using UQConnect. You'll contribute to ion trap design, develop physics models and optimisation software, and collaborate with hardware teams to implement and test ion transport methods. The position requires close analysis of experimental results against theoretical predictions.

Universal Quantum Haywards Heath, United Kingdom

Hybrid Permanent

open application pool for Electronics Engineers

At Universal Quantum we are creating the impossible. Together we are creating truly impactful quantum computers. We are looking to hire an Electronics Engineers within the electronics team to enable Quantum technologies. Passionate about helping create technologies which can change...

Universal Quantum Haywards Heath, United Kingdom

On-site 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

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

Quantum Algorithms Engineer

Phasecraft is the quantum algorithms company. We are building the mathematical foundations for quantum computing applications that solve real-world problems. Founded in 2019 by Toby Cubitt, Ashley Montanaro and John Morton, we are based in London and Bristol, UK. In...

Phasecraft Bristol, United Kingdom

Hybrid Permanent

Quantum Algorithms Scientist

Phasecraft is the quantum algorithms company. We are building the mathematical foundations for quantum computing applications that solve real-world problems. Founded in 2019 by Toby Cubitt, Ashley Montanaro and John Morton, we are based in London and Bristol, UK. In...

Phasecraft Bristol, United Kingdom

Hybrid Permanent

Lead Quantum Engineer, Systems Performance

Leads cross-functional teams in advancing superconducting qubit systems through experimental design and technical innovation. Focuses on identifying performance bottlenecks and driving hardware improvements for scalable quantum computing. Involves hands-on experimentation, technical leadership, and shaping long-term quantum hardware roadmaps.

Rigetti United States US$190,000 – US$225,000 pa