Latest Quantum Cryptography Engineer Jobs

Spotlight

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

Senior Software Engineer

This role involves designing and implementing secure embedded software for classical and post-quantum cryptographic systems, with a focus on performance, correctness, and resistance to side-channel and fault injection attacks. The engineer will work across the full development lifecycle, integrating cryptographic solutions on ARM and RISC-V platforms, collaborating with hardware and security teams, and ensuring compliance with standards like FIPS and NIST. The position requires deep expertise in low-level programming and cryptographic algorithm implementation in resource-constrained environments.

PQShield United Kingdom

Remote 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

Technical Team Lead

This role involves leading a distributed UK-based engineering team while maintaining a strong hands-on contribution to the development of post-quantum cryptography systems. The Technical Team Lead will bridge technical delivery and people management, driving component design, full-stack implementation, and deployment within an Agile environment. Success requires balancing mentorship, code quality, and architectural execution in a high-performance, security-critical domain.

Arqit United Kingdom

Hybrid Permanent Clearance Required

Quantum & Cryptography Principal Sales Specialist, UK Public Sector

Lead commercial strategy for AWS quantum computing and cryptography services across UK public sector institutions, from central government and defence to NHS and local authorities. Drive adoption of quantum-safe technologies and cybersecurity solutions by engaging senior leaders, shaping go-to-market plans, and navigating complex procurement environments. Work at the intersection of national security, emerging tech, and public service transformation to deliver mission-critical outcomes.

Amazon London, United Kingdom

Hybrid Permanent Clearance Required

Quantum Error Correction Researcher

Design and evaluate quantum error correction protocols for distributed quantum systems using numerical simulations and collaborative development. Work closely with theorists, experimentalists, and software teams to advance scalable quantum architectures. Contribute to publications, patents, and conference presentations to disseminate research outcomes.

Nu Quantum Cambridge, United Kingdom

On-site Permanent

Quantum Scientist - UK-070

A Quantum Scientist will conduct advanced research to develop and optimize trapped-ion quantum computing systems. The role involves designing and running experiments, calibrating quantum hardware, benchmarking performance, and improving control schemes. Scientists analyze complex data, debug system interactions, and collaborate closely with engineering teams to advance system reliability and scalability.

Oxford Ionics Oxford, United Kingdom

Quantum Microchip Designer (Ion Traps)

Design and develop microfabricated Paul traps for scalable quantum computers, performing electromagnetic and thermo-mechanical simulations and working closely with fabrication partners. Collaborate on trap layouts, packaging, and assembly procedures while documenting technical designs and test outcomes.

Universal Quantum Haywards Heath, United Kingdom

Hybrid Permanent

Quantum Software Engineer - QEC

Designs and implements quantum error correction (QEC) protocols for scalable, high-fidelity quantum computation, with a focus on neutral atom platforms. Develops custom decoders, models noise processes, and collaborates with hardware and software teams to translate theoretical QEC frameworks into practical implementations. Engages in research, simulation, and cross-team collaboration to advance fault tolerance in quantum systems.

Infleqtion Kidlington, United Kingdom

Hybrid Permanent

Quantum Software Engineer - Algorithms & Applications

Develops quantum algorithms and applications for near-term and fault-tolerant quantum systems, focusing on simulation, optimization, and hybrid quantum-classical workflows. Works across software, hardware, and research teams to implement and optimize algorithms using modern quantum SDKs and compiler toolchains. Contributes to customer support, proposal development, and scientific publication in high-impact journals.

Infleqtion Kidlington, United Kingdom

Hybrid Permanent

Quantum Algorithms Scientist - Optimization

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 in the...

Phasecraft Bristol, United Kingdom

Hybrid Permanent

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 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

Quantum Applications Scientist

This role involves co-designing quantum simulation applications tailored to QuEra’s neutral-atom quantum hardware. You'll develop novel algorithms and application pipelines in areas like quantum materials, quantum chemistry, and nuclear physics, while integrating near-term error correction techniques. The position requires close collaboration with academic partners, clients, and technical teams to bridge theory and hardware implementation.

Quera Computing Vale Of White Horse, United Kingdom

On-site Permanent

Quantum Error Correction Scientist

Design and simulate quantum error correction protocols tailored to hardware capabilities, characterise qubit noise profiles, and perform resource estimation for large-scale quantum computing applications. Contribute to hardware and software optimisation decisions to improve error correction performance. Work within a forward-thinking team focused on building scalable, impactful quantum computers.

Universal Quantum Haywards Heath, United Kingdom

Hybrid Permanent