Latest Cyber Security Jobs

Cryptographer

The Cryptographer role involves collaborating with sales and technical teams to explain cryptographic concepts, prepare technical presentations, and design secure solutions. You will also support RFP responses, risk assessments, and engage with the academic cryptography community, maintaining up-to-date knowledge of cryptographic protocols and compliance standards.

Arqit United Kingdom

Hybrid Permanent

Head of IT

The Head of IT will lead Riverlane's corporate IT operations and manage the on-premises high-performance computing (HPC) infrastructure. This role involves setting IT strategy, ensuring robust security, and collaborating with engineering and research teams to support quantum computing advancements.

Riverlane Cambridge, United Kingdom £100,000 – £130,000 pa

Hybrid Permanent

Quantum & Cryptography Principal Sales Specialist, UK Public Sector

This role involves leading the commercial strategy for AWS quantum computing and cryptography services across UK public sector organisations, from national security to the NHS and local government. The specialist will drive adoption of quantum-safe technologies and cybersecurity solutions by engaging senior leaders, shaping go-to-market plans, and navigating complex procurement environments. Success requires combining technical depth with mission-driven value selling in high-stakes, regulated domains.

Amazon London, United Kingdom

Hybrid Permanent Clearance Required

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

This role involves contributing to the development of quantum computing technologies, including quantum hardware and software, quantum chemistry, AI, machine learning, encryption, and more. You will work with a team of leading scientists and engineers to drive breakthroughs in materials discovery, cybersecurity, and next-gen quantum AI.

Quantinuum United Kingdom

On-site Permanent

FAE - Japan

FAE(Japan)Industry Focus: Semiconductor, Security Hardware & Software, Hyperscalers, Networking & Telecom, AutomotiveTerritory: JapanOpening date: April 2026Here at PQShield we are at the forefront of Post-Quantum Cryptography that is changing how the world operates. We’ve helped shape all of the first...

PQShield United Kingdom

Sales Director - Japan

Sales Director (Japan)Industry Focus: Semiconductor, Security Hardware & Software, Hyperscalers, Networking & Telecom, AutomotiveTerritory: JapanOpening date: April 2026💼 About the roleHere at PQShield we are at the forefront of Post-Quantum Cryptography that is changing how the world operates. We’ve helped...

PQShield United Kingdom

Senior Quantum Sales Director

This role involves identifying, developing, and closing strategic opportunities for IonQ's quantum computing solutions across various sectors including enterprise, government, defence, and research. The Senior Quantum Sales Director will build relationships with senior leaders, lead complex sales cycles, and position IonQ as a critical partner in next-generation computing.

Oxford Ionics Oxford, United Kingdom

On-site Permanent

Quantum Computing Programme Lead

The Quantum Computing Programme Lead will take end-to-end ownership of one generation of trapped-ion quantum computers, from architectural concept to successful deployment at customer sites. This role involves cross-functional collaboration, technical decision-making, and ensuring alignment with product, customer, and engineering goals.

Oxford Ionics Oxford, United Kingdom

On-site Permanent

Internship Opportunities with Quantinuum 2026 - UK/Germany

As part of our mission to expand our world class team at Quantinuum, we look for talented and high potential individuals to join us in internship positions. These positions normally have a duration between 3-6 months, with the majority focused...

Quantinuum United Kingdom

Technical Team Lead

This role involves leading a distributed software engineering team while maintaining hands-on technical contribution in the development of post-quantum cryptography solutions. The Technical Team Lead will guide full-stack software design, implementation, and deployment, ensuring high performance and resilience. Emphasis is placed on agile practices, code quality, and fostering a collaborative, high-performance culture within a cutting-edge cybersecurity environment.

Arqit United Kingdom

Hybrid Permanent Clearance Required

Business Development Manager - Quantum for Defence & Space

ABOUT THE COMPANYInfleqtion is a global quantum technology company delivering advanced sensing, precision timing, and quantum computing technologies to government and commercial customers. We develop and deploy cutting-edge quantum solutions that enhance navigation, positioning, communications, quantum information processing, and sensing...

Infleqtion Kidlington, United Kingdom

Hybrid Permanent