Latest Quantum Cryptography Engineer Jobs

I'd love to work at PQShield - Speculative Application

This speculative application role invites candidates to join a pioneering deep-tech startup focused on post-quantum cryptography and RISC-V-based secure computing. You'll work alongside founders and innovators on cutting-edge semiconductor solutions, contributing to groundbreaking security technologies in a flexible, inclusive environment. The role emphasizes collaboration, rapid learning, and real-world impact in a rapidly scaling field.

PQShield United Kingdom

Electronics Engineer - Design and Verification

This role involves designing, building, and testing electronic circuits for quantum computing systems, with a focus on verification and integration of subsystems. The engineer will work across disciplines with mechanical, software, and physics teams to develop state-of-the-art electronics solutions and contribute to test systems for quantum computers. Responsibilities include documentation, project planning, and rapid prototyping of proof-of-concept designs.

Universal Quantum Haywards Heath, United Kingdom

On-site Permanent

Neutral Atom Systems Architect

This role involves defining and leading the system architecture for neutral-atom quantum processors, focusing on high-performance hardware design and integration with quantum networking systems. The candidate will model realistic quantum networking protocols, collaborate across quantum error correction, atomic physics, and systems engineering teams, and establish technical specifications for distributed quantum computing testbeds. It is a highly technical leadership position requiring deep expertise in neutral-atom qubit control, optical systems, and fault-tolerant architectures.

Nu Quantum Cambridge, United Kingdom

On-site Permanent

Optics Group Lead

Lead the development and optimisation of advanced optical systems for quantum photonic technologies, focusing on qubit photon interfaces and quantum networking testbeds. Provide technical leadership and mentorship while collaborating across disciplines to design, automate, and characterise complex optical experiments. Drive best practices in experimental repeatability, system performance, and long-term scalability within a multidisciplinary R&D environment.

Nu Quantum Cambridge, United Kingdom

On-site Permanent

Finance Manager

Manages day-to-day finance operations including accounts payable/receivable, VAT returns, and month-end close processes. Ensures compliance with UK accounting standards and supports audit readiness. Focuses on improving financial controls, process efficiency, and automation within a growing quantum technology environment.

Universal Quantum Haywards Heath, United Kingdom

Hybrid Permanent

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

Operations & Inventory Manager

The Operations & Inventory Manager ensures efficient and scalable business operations by leading inventory strategy, supply chain coordination, and process optimisation. This role manages material flow, maintains accurate inventory records, and drives continuous improvement using data-driven insights. Close collaboration with procurement, engineering, finance, and project teams ensures operational readiness and support for project delivery timelines.

Infleqtion Oxford, United Kingdom

Hybrid 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

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

IT Engineer

This role provides frontline IT support in a high-stakes quantum R&D and semiconductor fabrication environment, serving a technically diverse workforce. The engineer ensures uninterrupted operations by managing endpoints, user provisioning, and critical IT systems across Windows, macOS, and Linux platforms, with responsibilities spanning from onboarding to incident response in controlled environments. The position demands strong triage skills, familiarity with lab and cleanroom protocols, and the ability to support specialized research infrastructure.

Rigetti United States US$80,000 – US$120,000 pa

Sr. AMO Physicist

The role involves advancing neutral-atom quantum computing technologies through hands-on experimental work, including designing, testing, and improving quantum processing units. The physicist will collaborate with cross-functional teams to characterize systems, reduce noise and decoherence, and validate subsystems. This position is based at Quera's Harwell site and includes engagement with academic and industry partners.

Quera Computing Vale Of White Horse, United Kingdom

On-site Permanent

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

Senior Facilities Technician

This role involves hands-on maintenance and troubleshooting of critical facilities systems including HVAC, chilled water, and utility distribution in laboratory and cleanroom environments. The technician ensures compliance with safety and regulatory standards, manages contractor activities, and supports equipment installation and site reliability. It requires strong MEP knowledge, experience in high-tech manufacturing settings, and ownership of day-to-day facilities operations.

Oxford Ionics Oxford, United Kingdom

On-site 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

IC Layout Automation Software Engineer

This role involves developing and maintaining software systems that automate the design and layout of superconducting quantum circuits. The engineer will work at the intersection of software, IC layout, and semiconductor fabrication, translating device requirements into manufacturable designs using tools like GDSII and EDA platforms. Collaboration with cross-functional teams in an R&D environment is central to improving and scaling layout automation workflows.

Rigetti United States US$190,000 – US$220,000 pa

On-site Permanent