Latest Quantum Cryptography Engineer Jobs

Lab Technician

As a Lab Technician, you will work closely with a multidisciplinary team to support the assembly, integration, testing, and maintenance of quantum computing machines. Your responsibilities will include performing functional tests, calibrations, and maintaining a clean and organized laboratory environment.

Universal Quantum Haywards Heath, United Kingdom

On-site Permanent

RF - System Designer

Design and lead the architecture of RF systems for quantum computing hardware, including transmission lines to quantum chips. Define specifications for end-to-end RF delivery components and oversee simulation, integration, and testing processes. Collaborate across disciplines including electronics, ASIC design, mechanics, and physics to implement cutting-edge RF solutions in a fast-paced R&D environment.

Universal Quantum Haywards Heath, United Kingdom

On-site Permanent Clearance Required

Principal AMO Physicist

This role involves designing and running remote-entanglement experiments using trapped-ion qubits coupled with integrated microcavities, as part of a quantum network demonstrator. The candidate will mentor junior physicists, maintain complex experimental systems including ultra-high-vacuum and laser setups, and collaborate across engineering and theory teams. The work focuses on advancing ion-photon interface efficiency and entanglement fidelity to enable scalable quantum networks.

Nu Quantum Cambridge, United Kingdom

On-site Permanent

Senior AMO Physicist

This role involves designing and running remote-entanglement experiments using ion-trapping and integrated micro-cavity technology to advance quantum networking capabilities. The physicist will develop and maintain complex experimental systems, including ultra-high-vacuum setups, lasers, and control electronics, while mentoring junior team members. Collaboration with multidisciplinary engineering and theory teams is central to delivering scalable, high-performance quantum networks.

Nu Quantum Cambridge, 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

Photonics Technical Lead

The role involves leading the development and execution of integrated photonics technologies for quantum applications, including photonic integrated circuits, laser systems, and subsystems. The technical lead will oversee project delivery, mentor a team, and collaborate across global teams and external partners. Key activities include design, fabrication, testing, and commercialisation of photonics solutions within a quantum technology ecosystem.

Infleqtion Kidlington, United Kingdom

Hybrid Permanent

Mechanical Design Engineer – Photonic Hardware

This role involves designing precision mechanical and thermal systems for photonic quantum computing hardware, focusing on robustness, manufacturability, and performance in controlled environments. The engineer will work closely with cross-functional teams to translate system requirements into hardware solutions, conduct simulation and validation, and support prototyping and supplier collaboration. The position is based at Daresbury and supports the development of scalable, fault-tolerant quantum systems.

PsiQuantum Runcorn, WA7 1UP, United Kingdom £50,000 – £56,000 pa

On-site Permanent

Intern, System Architecture

This internship involves developing photonic quantum computing architectures through simulation, software implementation, and protocol design. Interns will work on translating quantum information theory into physical system designs, using programming and modeling to advance fault-tolerant quantum systems. The role emphasizes collaboration, innovation, and technical rigor in a cutting-edge quantum computing environment.

PsiQuantum United Kingdom £31,200 – £56,160 pa

Hybrid Internship

Staff FPGA Engineer

Design and develop FPGA-based signal processing and control systems for quantum computing hardware. Develop RTL modules, simulate and verify control algorithms, and implement firmware for high-speed waveform generation and digital control loops. Work closely with hardware and software teams to deliver real-time quantum control systems using Xilinx Ultrascale+ devices and industry-standard tools.

Oxford Ionics Oxford, United Kingdom

On-site Permanent

Senior Materials Planner

This role involves managing materials planning for complex technical builds in a quantum computing environment. The Senior Materials Planner will own MRP-driven scheduling, ensure material availability, resolve system discrepancies, and coordinate with engineering, production, and vendors. The position requires hands-on problem-solving in a fast-paced, evolving manufacturing context.

Oxford Ionics Oxford, United Kingdom

Hybrid Permanent

Staff Analogue Designer, CMOS Modelling

This role involves developing high-fidelity behavioural models for cryo-CMOS mixed-signal integrated circuits used in quantum computing systems. You'll derive models from mathematical foundations, implement them in Verilog-A/AMS and real-number formats, and ensure correlation with schematic and silicon measurements. The position shapes modelling methodology and enables full-chip simulation across temperature extremes, directly supporting the development of control hardware for trapped-ion quantum processors.

IonQ Oxford, United Kingdom

Senior Software Engineering Manager

Leads a team building software systems for quantum computer design, fabrication, and characterization, integrating scientific computing with hardware engineering workflows. Focuses on developing scalable data platforms, tooling, and infrastructure to support quantum device development. Works closely with physicists, fabrication engineers, and hardware teams to operationalize research-driven systems.

Rigetti United States US$220,000 – US$250,000 pa

On-site Permanent

R&D Manager - Software -914

This role involves leading a team of software engineers to develop and mature quantum programming languages, compilers, and developer tools such as Guppy, HUGR, and TKET. The position balances technical leadership with people management, guiding the full software development lifecycle from research to production. The team collaborates closely with research, hardware, and product groups across the UK and US to ensure the software stack supports cutting-edge quantum processors.

Quantinuum Cambridge, United Kingdom

Hybrid

Lead Electrical Engineer, Control Systems

This role involves designing, developing, testing, and deploying hardware for quantum computing, specifically focusing on low-noise mixed-signal board design. The Lead Electrical Engineer will collaborate with a multidisciplinary team to deliver cutting-edge quantum control solutions, mentor junior engineers, and drive technical excellence in a fast-paced environment.

Rigetti United States US$165,000 – US$215,000 pa

On-site Permanent

Deployment Physicist, On-premises Installation - 572

Installs and validates quantum computing systems (Helios) on customer premises globally, with deep involvement in atomic physics and qubit operations. Supports integration, shipment, and deployment activities, including international travel for on-site installations and remote support. Contributes to future post-Helios hardware development through design and validation phases.

Quantinuum United Kingdom

Hybrid