Latest Defence Jobs

Spotlight

ML Runtime Engineer

Design and develop high-performance ML runtime systems for AI accelerators, integrating with open-source frameworks like PyTorch and vLLM. Work closely with hardware and software teams in a co-design environment to optimize inference performance. Build low-level runtime components in Rust and contribute to the full stack of ML inference infrastructure.

Fractile London, United Kingdom

Hybrid Permanent

Defence & National Security RF Communications Lead

This role involves leading the design and development of custom RF communication systems for defence and national security applications, including low-power, long-range, and software-defined radio solutions. The individual will act as a technical expert, guiding projects from concept through to deployment while collaborating closely with clients and multidisciplinary teams. Key focus areas include radio system design, propagation, and protocol development, with frequent UK travel and client engagement required.

Cambridge Consultants United Kingdom

On-site Permanent Clearance Required

UK Defence Veterans - Civilian Work Attachment

This role offers UK military veterans in their final 12 months of service a one-week unpaid work attachment at a leading AI company. Participants will gain exposure to the Defence Business Unit, engaging with teams working on machine learning solutions for surveillance, autonomous systems, and combat support. The placement is designed for career transition insight, with structured learning across technical and operational roles in AI and data science.

Faculty AI London, United Kingdom

Internship

Senior Product Designer - Defence

This role involves leading the design of AI-native, human-centred solutions for high-stakes defence clients. The Senior Product Designer will conduct user research, develop accessible and intuitive interfaces, and evolve design systems in close collaboration with technical teams. The position requires shaping products from inception and communicating design strategy to senior stakeholders.

Faculty London, United Kingdom

Hybrid Permanent Clearance Required

Principal AI & Algorithms Engineer (Defence & Security)

This role involves leading the design and implementation of advanced algorithms for intelligent systems in defence and security contexts, with a focus on machine learning, AI, and sensor processing. You'll act as technical architect on complex projects, mentor engineers, and contribute to client-facing proposals and sales efforts. The position requires security clearance and combines hands-on development with strategic technical leadership in multidisciplinary teams.

Cambridge Consultants United Kingdom

Hybrid Permanent Clearance Required

Senior Solutions Architect, WWPS Global Defence Partners

Lead technical engagements with defence-sector partners to design and implement cloud solutions on AWS, focusing on AI/ML, HPC, digital engineering, and data platforms. Translate mission-critical requirements into secure, scalable architectures while advising on compliance and modernization strategies. Drive adoption across systems integrators and technology partners through executive-level collaboration and architectural leadership.

Amazon London, United Kingdom

Hybrid Permanent Clearance Required

Pre-sales Solutions Architect (Manufacturing, Defence & Automotive)

This role involves working closely with sales teams and customers to design and demonstrate technical solutions using the Databricks Lakehouse Platform, with a focus on data and AI challenges in manufacturing, defence, and automotive sectors. The individual will lead proof-of-concept projects, deliver technical workshops, and act as a trusted advisor to guide customers through solution architecture and implementation. A strong background in data science, generative AI, and cloud-based data platforms is essential for success in this customer-facing technical role.

Databricks London, United Kingdom

Hybrid Permanent Clearance Required

Technical Program Manager, AI Delivery for Public Sector & Defence, UK

This role involves leading end-to-end technical program delivery for AI deployments within UK public sector and defence organisations. The individual will act as a bridge between Cohere’s advanced AI capabilities and government stakeholders, managing complex procurement, security, compliance, and integration requirements. Success requires navigating air-gapped environments, high-stakes governance, and multi-team coordination to ensure responsible, secure, and scalable AI adoption.

Cohere London, United Kingdom

Hybrid Permanent Clearance Required

Data Scientist

Develop and deploy machine learning models to transform complex defence data into actionable intelligence, working directly with military end users and technical teams. Integrate AI-driven solutions into operational workflows, including agentic automation and data processing pipelines, within a secure, international environment. Support real-world military exercises and decision-making through SitaWare-based AI capabilities.

Adepto Technical Recruitment Ltd Farnborough, Hampshire, GU14 7JT, United Kingdom £45,000 – £60,000 pa

Machine Learning Engineer

This role involves developing end-to-end machine learning systems integrated with advanced electronics for defence and security applications. You'll work across diverse domains such as computer vision and generative models, rapidly prototyping and deploying models into functional hardware systems. The role emphasizes innovation, rapid iteration, and close collaboration in a technically driven, low-management environment.

ECM Selection Cambridge, Cambridgeshire, United Kingdom £40,000 – £70,000 pa

On-site Permanent Clearance Required

Lead AI Researcher

The Lead AI Researcher will lead the development and deployment of cutting-edge deep learning systems for high-stakes defence and national security applications. This founding role involves solving ambiguous, mission-critical problems from concept to production, designing advanced AI models, and establishing engineering standards and tooling for a world-class team. Day-to-day work includes close collaboration with leadership to translate operational needs into technical solutions, training and deploying frontier models, and building robust ML infrastructure in a rigorous, security-conscious environment.

Kangal AI London, United Kingdom £100,000 – £200,000 pa

On-site Permanent

AI Security Researcher

This role involves researching emerging AI security threats and developing innovative tools to protect critical national systems. The researcher will conduct vulnerability analysis, reverse engineering, and prototype development while collaborating with multidisciplinary teams to transition research into practical solutions. They will also communicate technical findings to diverse audiences and stay ahead of advancements in AI and cybersecurity.

Forward Role Hampshire, United Kingdom £65,000 – £85,000 pa

Hybrid Permanent Clearance Required

AI/ML Engineer

Develops novel AI/ML solutions in computer vision, NLP, LLMs, and reinforcement learning, translating academic research into production-grade systems for national security and defence applications. Works across the full R&D lifecycle, from experimentation to deployment, while mentoring junior engineers and contributing to technical proposals. Operates in a multidisciplinary team with a strong engineering focus.

CBSbutler Holdings Limited trading as CBSbutler Romsey, Hampshire, United Kingdom £65,000 pa

Senior Algorithms Engineer

Develops advanced computer vision and machine learning algorithms for defence applications such as C-UAS, autonomous platforms, and electro-optic systems. Focuses on solving real-world perception challenges using deep learning, signal processing, and statistical methods. Works across the full algorithm lifecycle from research to deployment in real-time systems.

Chess Dynamics Wokingham, Berkshire, United Kingdom £50,000 – £60,000 pa

Hybrid Permanent Clearance Required

FPGA Engineer

FPGA EngineerOnsite in Luton12 months£84.03 p/h UmbrellaAll candidates must be eligible to obtain SC ClearanceOur client, a prominent player in the Defence & Security sector, is currently seeking a skilled FPGA Engineer for a contract position. This role is pivotal...

Matchtech Luton, Bedfordshire, United Kingdom £80 – £84 ph

Senior Algorithms Engineer

Develop and deploy advanced computer vision and machine learning algorithms for defence applications such as electro-optic systems, C-UAS, and autonomous platforms. Focus on solving real-world perception challenges through algorithm innovation, dataset improvement, and integration into real-time systems. Work within a multidisciplinary engineering team to enhance detection, classification, and tracking capabilities in complex environments.

OpenSourced Rg412Rf, United Kingdom £50,000 – £60,000 pa

Hybrid Permanent Clearance Required