Latest Defence Jobs

Senior AI & Algorithms Engineer (Defence & Security)

This role involves leading the development of advanced AI and machine learning systems for defence and security applications, including signal processing, edge AI, and information processing with transformers. The engineer will deliver data-driven solutions, mentor junior staff, and contribute to client-facing technical proposals and demonstrators. Work includes translating research into deployable systems, with a strong emphasis on technical ownership and innovation in high-stakes domains.

Cambridge Consultants United Kingdom

Hybrid Permanent Clearance Required

PhD Software Security - 2026 summer placement

This role involves researching and prototyping secure systems in defence and security contexts, with a focus on emerging threats, post-quantum cryptography, and trusted execution environments. You'll work on embedded and distributed software in adversarial settings, conduct threat analysis, and collaborate with experts across disciplines including AI, autonomy, and RF. The position supports full-cycle development from design to validation within multidisciplinary R&D teams.

Cambridge Consultants United Kingdom

On-site Internship Flexible Clearance Required

Computer Vision Engineer

Develop and deploy advanced computer vision systems for high-stakes defence applications, bridging cutting-edge research with real-world deployment. Lead technical strategy, mentor teams, and contribute to business development through bids and client engagement. Work in a hybrid model with regular on-site client collaboration across the UK.

Faculty AI London, United Kingdom

Hybrid Permanent Flexible Clearance Required

Lead Software Engineer

Lead the technical direction of AI and machine learning projects, designing production-grade systems and guiding cross-functional teams. Drive architectural decisions, mentor engineers, and deliver innovative solutions for clients in the energy and sustainability sector. Focus on reusable tools, scalable infrastructure, and high-impact delivery in a fast-paced environment.

Faculty AI London, United Kingdom

Hybrid Permanent

Principal Machine Learning Engineer

This role involves leading the design and implementation of scalable machine learning systems within high-stakes defence projects. You'll act as a technical authority, solving cross-cutting challenges, shaping architectural strategy, and mentoring engineering teams. The work combines advanced AI innovation with real-world deployment in secure, mission-critical environments.

Faculty London, United Kingdom

Hybrid Permanent

Business Technology Analyst

Provide frontline IT support to employees, troubleshoot Level 1 technical issues, onboard new hires, and contribute to internal IT projects in a high-growth AI environment. Collaborate with workplace and engineering teams to maintain reliable technology infrastructure and document processes for knowledge sharing.

Faculty London, United Kingdom

On-site Permanent

Senior Computer Vision Engineer - Deep Learning

Design and deploy production-grade computer vision systems using deep learning techniques such as CNNs and Vision Transformers. Translate AI research into robust, real-world applications for defence and security environments. Work across the full development lifecycle, from research to deployment on cloud and edge platforms.

MFK Recruitment Brentford, London, TW8 9DE, United Kingdom £70,000 – £95,000 pa

Hybrid Permanent Clearance Required

Full Stack Python Developer

Full Stack Python DeveloperSalary: £60,000 to £80,000Location: West LondonWorking arrangement: Predominantly office and customer-site based, with some remote working availableEmployment: Permanent, full-timeMFK Recruitment is recruiting a Full Stack Python Developer for an innovative UK technology company developing advanced Artificial Intelligence...

MFK Recruitment Brentford, London, TW8 9DE, United Kingdom £60,000 – £80,000 pa

Senior AI/ML Engineer

This role involves leading AI/ML research and development projects from concept to deployment, applying cutting-edge techniques in computer vision, NLP, reinforcement learning, and large language models to real-world challenges in defence and national security. The engineer will develop solutions using Python, provide technical mentorship, and collaborate with multidisciplinary teams and customers. Emphasis is placed on translating emerging research into practical engineering applications within an agile environment.

Copello Southampton, Hampshire, United Kingdom £60,000 – £65,000 pa

Software Engineer - Advanced Signal Procesing & AI

Location: UK Wide (Hybrid/On-site as required)Outside IR35 - Rate £50-£80 p/hSecurity Clearance: Must be eligible to obtain and maintain UK Security Clearance (SC)RC Fornax is looking for a Software Engineer – Advanced Signal Processing & AI. This is an exciting...

RC Fornax United Kingdom £50 – £80 ph

DV Cleared Data Scientist

Lead and mentor a team of 6 data scientists while driving the development and deployment of custom AI and machine learning solutions for high-impact defence and technology projects. Focus on advanced data exploitation, algorithm development, and technical innovation using Python, TensorFlow, PyTorch, and related frameworks across complex datasets.

Salt United Kingdom £70,000 – £100,000 pa

On-site Permanent Clearance Required

Senior Machine Learning Engineer

Design and deploy production-grade machine learning and generative AI systems for national security applications, using AWS and modern MLOps/LLMOps practices. Lead model development from experimentation to deployment, with a focus on scalability, security, and responsible AI. Collaborate with data scientists and engineers in a high-impact technical consultancy environment.

eFinancialCareers London, United Kingdom £75,000 pa

Hybrid Permanent Clearance Required

Deployment Lead

Lead end-to-end deployment of a Kubernetes-based AI simulation platform into customer environments, serving as the primary technical liaison for C-suite stakeholders while building and scaling regional deployment teams. The role combines hands-on infrastructure leadership with executive engagement, ensuring deployments meet technical, security, and compliance standards in highly regulated industries such as aerospace, energy, and semiconductors.

PhysicsX England

Hybrid Permanent Clearance Required

Expression of Interest- Red Team

This role involves conducting advanced research to identify and stress-test vulnerabilities in frontier AI systems, focusing on alignment, misuse, or control risks. The team works closely with leading AI companies, UK government officials, and allied governments to inform deployment decisions, policy, and safety practices. Work includes developing novel evaluation techniques, attack tooling, and control measures to mitigate high-stakes AI risks.

AI Security Institute London, United Kingdom £65,000 – £145,000 pa

On-site Permanent Clearance Required

Delivery Engineer - Aerospace & Defense

Lead business development and delivery for AI-driven simulation software within aerospace and defense clients. Drive technical scoping, manage cross-functional teams, and shape product evolution based on customer feedback. Engage with senior engineering leaders and represent the company at industry events, balancing strategic relationships with hands-on project execution.

PhysicsX England US$175,000 – US$250,000 pa

Hybrid Permanent Clearance Required