Latest Defence Jobs

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

Senior FPGA Verification Engineer

This role involves designing and implementing advanced UVM/SystemVerilog verification environments for FPGA-based quantum control systems. The engineer will develop simulation infrastructure, define verification plans with functional and code coverage, and collaborate with RTL teams to debug and ensure design quality. The position is central to ensuring the reliability of hardware supporting cutting-edge quantum computing systems.

IonQ Oxford, United Kingdom

Software Engineer, Runtime

This role involves developing low-level, real-time control systems for quantum computing hardware, focusing on building robust abstractions and execution environments in Rust. You'll work closely with experimental scientists to enable precise ion manipulation and contribute to core libraries that transform hardware into functional quantum computers. The position emphasizes rapid iteration, high-quality code, and cross-team collaboration within a cutting-edge quantum research environment.

IonQ Oxford, United Kingdom

Senior Sales 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

Sales Director - Japan

Lead sales strategy and execution for a post-quantum cybersecurity company in Japan, targeting enterprise clients in semiconductor, telecom, automotive, and security sectors. Drive market expansion by building relationships with key stakeholders and closing high-value technical IP deals. Collaborate with field application engineers and global teams to align product development with customer needs.

PQShield United Kingdom

Staff FPGA Engineer

Design and develop FPGA-based signal processing and control systems for quantum computing hardware. Implement RTL modules, verify logic using simulation tools, and debug real-time control functions using lab equipment. Collaborate with cross-functional teams to deliver high-performance firmware for quantum control systems.

IonQ Oxford, United Kingdom

Staff Software Engineer, Runtime

This role involves developing real-time control systems and low-level software abstractions for quantum computing hardware, working closely with experimental scientists and cross-functional teams. You'll shape core Rust libraries and the execution environment that transform quantum hardware into functional systems, with a focus on precision timing, system integration, and rapid iteration. The position emphasizes low-latency computing, API design, and tooling to support scientific experimentation and scaling toward fault-tolerant quantum computation.

IonQ Oxford, United Kingdom

Photonic Layout Engineer

Design and integrate photonic components into multi-layer quantum processor chips, ensuring precise layout and compatibility with metal and CMOS routing. Collaborate with scientists and engineers to define design rules and advance photonic process design kits. Perform layout verification and produce reticle-scale files for commercial fabrication using Python-based tools.

IonQ Oxford, United Kingdom

Senior Staff Analog Mixed-Signal Design and Modelling Engineer

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 Electronics Engineer

This role involves diagnosing and resolving electronics and control hardware issues in trapped-ion quantum computers, from root cause analysis to permanent design fixes. The engineer will lead reliability upgrades, standardize electronics across systems, and work closely with cross-functional teams to improve uptime and reduce operational costs. Key activities include PCB design, system-level testing, retrofitting live systems, and ensuring all improvements are documented and integrated into future builds.

IonQ Oxford, United Kingdom

Hybrid Permanent Clearance Required

Senior Software Engineer, Transport

Develop high-performance control software for trapped-ion quantum computers by creating frameworks that translate ion transport specifications into voltage waveforms. Collaborate with physicists and engineers to optimize transport operations, integrate physics simulations, and support scalable quantum computing systems. Work across disciplines to shape system architecture and enable closed-loop calibration for advanced quantum hardware.

IonQ Oxford, United Kingdom

Director, Systems Software

Leads the software team responsible for developing a full-stack system that controls and monitors trapped-ion quantum computers. Focuses on defining software architecture, improving devops and release processes, and scaling the engineering team. Works closely with quantum scientists and engineers to translate low-level experiments and quantum algorithms into functional software using Python and Rust.

IonQ Oxford, United Kingdom