Latest Quantum Software Engineer Jobs

Spotlight

Lead Quantum Error Correction Researcher

As a Lead Quantum Error Correction Researcher, you will lead high-impact research projects and manage a small team, pushing the boundaries of QEC. You'll collaborate with a multidisciplinary team, translate research into practical outcomes, and build strong relationships with external partners and customers.

Riverlane £145,000 – £240,000 pa

Hybrid Permanent

Spotlight

Quantum Error Correction Researcher (Algorithms)

As a QEC Researcher (Algorithms) at Riverlane, you will work on quantum algorithms and their implementation on future fault-tolerant quantum computers. You will collaborate with a multidisciplinary team, contribute to academic research, and optimize quantum circuit compilation for specific QEC primitives.

Riverlane Cambridge, United Kingdom £60,000 – £85,000 pa

Hybrid Permanent

Quantum Software Engineer - QEC

ABOUT THE COMPANYInfleqtion is a global quantum technology company solving the world’s most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading edge commercial products, Infleqtion enables “quantum...

Infleqtion Kidlington, United Kingdom

Hybrid Permanent

Quantum Software Engineer - Algorithms & Applications

ABOUT THE COMPANYInfleqtion is a global quantum technology company solving the world’s most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading edge commercial products, Infleqtion enables “quantum...

Infleqtion Kidlington, United Kingdom

Hybrid Permanent

Senior Software Engineer - Developer Tools

As a Senior Software Engineer for Developer Tools, you will develop and maintain compiler toolchains, optimization tools, and circuit transformation libraries that connect quantum developers to IonQ's hardware. You will work closely with the Compiler, QEC, and Applications teams to ensure robust, well-documented, and user-friendly interfaces for advanced quantum computing features, directly impacting the performance and reliability of quantum applications.

IonQ United Kingdom

On-site Permanent

Software Engineer - Open Source

As a Software Engineer at Riverlane, you will work on Deltakit, an open-source platform for building and simulating quantum error correction (QEC) experiments. Your role involves designing and implementing robust software tools, collaborating with leading experts in QEC, and engaging with the user community to ensure the software meets their needs and is user-friendly.

Riverlane Cambridge, United Kingdom £60,000 – £70,000 pa

Hybrid Permanent

Director of Software US or UK - 800

The Director of Software will lead the development of a high-performance software stack for quantum computers, including front-end languages, compilers, and applications. This role involves managing teams, aligning with hardware advancements, and ensuring the software ecosystem meets industry standards.

Quantinuum United Kingdom US$238,050 – US$297,563 pa

On-site Permanent

Director of Software - 800

As the Director of Software, you will lead the development of a high-performance software stack for quantum computers, including front-end languages, compilers, and applications. You will manage teams in the US and UK, ensuring the software ecosystem aligns with hardware advancements and customer needs.

Quantinuum United States US$238,050 – US$297,563 pa

On-site Permanent

Software Engineer (Compilers)

AtUniversal Quantum, we aim to make the world a better place by engineering the future of computing. Together, we are creating truly impactful quantum computers. Our machines will be capable of solving problems until now considered impossible, with applications ranging...

Universal Quantum Haywards Heath, United Kingdom

Hybrid Permanent

Software Engineer (Modelling & Simulations)

AtUniversal Quantum,we aim to make the world a better place by developing a new computer technology. Together, we are creating truly impactful quantum computers. Our machines will be capable of solving problems until now considered impossible, with applications ranging across...

Universal Quantum Haywards Heath, United Kingdom

Hybrid Permanent

Senior Software Engineer - Oxford

As a Senior Software Engineer, you will work on developing a quantum compiler, writing embedded firmware, designing high-level APIs, and advancing internal development infrastructure. You will collaborate with scientists and engineers to build and optimize quantum computing systems using Python, Rust, and custom hardware.

Oxford Ionics Oxford, United Kingdom

Hybrid Permanent

Senior Software Engineer - Open Source

As a Senior Software Engineer at Riverlane, you will lead the development of Deltakit, an open-source platform for building and simulating quantum error correction (QEC) experiments. Your role involves driving the design and delivery of new features, improving performance and usability, and ensuring the platform scales with growing user needs. You will also engage with the QEC community to gather feedback and translate it into meaningful improvements, while mentoring and guiding other engineers in the team.

Riverlane Cambridge, United Kingdom £72,000 – £90,000 pa

On-site Permanent

Senior Software Engineer

As a Senior Software Engineer at PQShield, you will design and implement secure cryptographic solutions, focusing on classical and post-quantum cryptography. You will work on optimizing performance, hardening implementations against attacks, and ensuring compliance with security standards. Collaboration with cross-functional teams, including hardware and security engineers, is key to this role.

PQShield United Kingdom

Remote Permanent

Software Engineering Runtime Manager - UK-031

This role involves leading and managing a team of software engineers responsible for developing the runtime software that powers Oxford Ionics' quantum computers. You will work closely with quantum scientists and engineers to ensure the team delivers high-quality software solutions on time, while maintaining a balance between speed and quality.

Oxford Ionics Oxford, United Kingdom

Hybrid Permanent

Optics Engineer

Contract Type: Full-time, PermanentLocation:Cambridge, UKVisa Sponsorship availableClosing date for applications: Wednesday 20th May 2026 at 5pm (UK time).Join Nu Quantum - Shaping the Future of TechnologyNu Quantum is at the forefront of quantum computing and advanced technology, driven by innovation,...

Nu Quantum Cambridge, United Kingdom

On-site Permanent

Systems Engineer

The Systems Engineer will lead the transformation of hardware prototypes into manufacturable and scalable quantum products. Key responsibilities include system-level design, requirements capture, documentation, modelling, simulation, and coordinating integration and validation processes. You will work closely with a multidisciplinary team of physicists, hardware and software engineers, and product teams to ensure seamless integration and lifecycle performance.

ColdQuanta Oxford, United Kingdom

Hybrid Permanent

Computational Physicist (Quantum Chemistry)

This role involves developing and maintaining simulation software for electron-molecule collisions, working with established quantum chemistry codes, and performing cross section calculations for customers. You will collaborate with leading academic partners, contribute to scientific publications, and support customer-facing projects.

Quantemol Ltd London, United Kingdom

Hybrid Permanent