Latest Defence Jobs

Spotlight

Senior Machine Learning Scientist

This role involves developing and deploying custom machine learning and LLM-powered systems for customer feedback analysis, including fine-tuning, retrieval, summarisation, and agentic workflows. The scientist will lead experimentation, evaluation, and productionisation of models while mentoring team members and integrating cutting-edge AI research into real-world applications.

Chattermill London, United Kingdom

Remote Permanent

Spotlight

ML Runtime Engineer (Mid-Level and Senior)

This role involves developing and optimizing the runtime stack for AI accelerators, focusing on integrating with open-source ML frameworks like PyTorch and vLLM. The engineer will work closely with hardware and software teams using a co-design approach to enable high-performance inference for large language models. Key responsibilities include building a high-performance runtime in Rust and supporting inference server integrations.

Fractile London, United Kingdom

Hybrid Permanent

Defence & National Security RF Communications Lead

This role involves leading the design and delivery of radio communication systems for defence and national security projects. You will collaborate with clients to innovate and solve complex challenges, often working on multiple projects simultaneously while maintaining strong client relationships.

Cambridge Consultants United Kingdom

On-site Permanent Clearance Required

UK Defence Veterans - Civilian Work Attachment

Why Faculty?We established Faculty in 2014 because we thought that AI would be the most important technology of our time. Since then, we’ve worked with over 350 global customers to transform their performance through human-centric AI. You can read about...

Faculty AI London, United Kingdom

Internship

Senior Product Designer - Defence

This role involves leading the end-to-end design of AI-native, human-centred products for high-stakes defence applications. You'll conduct user research, develop accessible and intuitive interfaces, and evolve design systems in close collaboration with machine learning and engineering teams. The work focuses on delivering ethical, reliable AI solutions that support national security and global stability.

Faculty London, United Kingdom

Hybrid Permanent Clearance Required

RF Engineering , Defence & Security – 2026 summer placement

This 12-week summer placement involves contributing to the design and development of advanced RF systems, including communication, radar, and force protection systems. You will work on system design, antenna development, and RF circuit design, collaborating with a multi-disciplinary team to deliver innovative solutions for clients in the defence and security sector.

Cambridge Consultants United Kingdom

On-site Internship Clearance Required

Machine Learning Engineer - Defence

This role involves designing and developing machine learning and large language model (LLM) systems for high-impact, secure, and mission-critical environments. You will work on advanced AI solutions, focusing on performance, reliability, and security, while collaborating with engineering teams and clients to solve complex challenges.

eFinancialCareers London, United Kingdom £60,000 – £90,000 pa

Hybrid Permanent Clearance Required

Data Scientist - Defence & Security

This role involves working on cutting-edge machine learning and GenAI solutions, deploying LLMs and ML models in secure government and defence environments. You will lead technical delivery, design and optimise pipelines, and mentor junior engineers within a collaborative team.

eFinancialCareers London, United Kingdom £75,000 pa

On-site Permanent Clearance Required

Director, Defence - Sales - UK

What we’re all about.Do you ever have the urge to do things better than the last time? We do. And it’s this urge that drives us every day. Our environment of discovery and innovation means we’re able to create deep...

Quantexa London, United Kingdom

Hybrid

Senior Solutions Architect, WWPS Global Defence Partners

This role involves leading technical strategy and solution architecture for defence-sector partners adopting AWS cloud technologies. The Senior Solutions Architect will define modernization roadmaps, design secure and scalable AWS-native systems, and act as a trusted advisor on AI/ML, HPC, and data platforms. The position emphasizes strategic engagement with systems integrators and executive stakeholders in mission-critical environments.

Amazon London, United Kingdom

Hybrid Permanent Clearance Required

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

This role involves working closely with customers in the manufacturing, defence, and automotive sectors to design and demonstrate data and AI solutions using Databricks' Lakehouse Platform. The architect leads technical pre-sales activities, including proof-of-concept development, solution scoping, and workshops, while acting as a trusted advisor on data architecture and Generative AI implementation. The position emphasizes collaboration with sales teams and technical communities to drive platform adoption and scale best practices.

Databricks London, United Kingdom

Hybrid Permanent Clearance Required

Graduate Software Engineer

Software engineering at the frontier of AI and defenceThis team is motivated by saving lives in war affected regions and on the battlefield. They believe that by combining advanced technologies from different sectors they can fundamentally change the effectiveness of...

ECM Selection Cambridge, Cambridgeshire, United Kingdom £35,000 – £40,000 pa

AI Engineer/Data Scientist

We are looking for an AI Engineer / Data Scientist to work with one of our clients in the defence sector. You will collaborate with the Technical Lead, Engineers and Architects to design, build and deliver secure digital solutions in...

Fuel Recruitment Farnborough, Hampshire, GU14 7JT, United Kingdom £600 – £700 pd

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

Technical Architect Contractor

This role involves designing and assuring technical architectures for complex defence programmes, focusing on secure cloud, Kubernetes, and AI-enabled systems. You will work closely with stakeholders to translate emerging technologies into practical solutions, ensuring scalability, interoperability, and security in highly regulated R&D environments.

Rebel Recruitment United Kingdom £650 – £850 pd

Hybrid Contract Clearance Required

Operational Analyst

This role involves conducting operational analysis and research to support major defence capability development and experimentation programmes. You will work with emerging technologies like AI and autonomous systems, assess military utility, and provide evidence-based recommendations to senior stakeholders.

Rebel Recruitment United Kingdom £550 – £800 pd

Hybrid Contract Clearance Required

Senior Detection Engineer

In this hands-on technical role, you will design, develop, and refine advanced SIEM detection logic to combat real-world cyber threats. You'll work with high-profile Defence clients, research emerging threats, and act as a technical authority to strengthen overall detection capabilities within a complex MSSP environment.

Sopra Steria Farnborough, GU14 7JT, United Kingdom £55,000 – £65,000 pa

Hybrid Permanent Clearance Required