Latest Defence Jobs

Senior Machine Learning Engineer

Lead the development and deployment of cutting-edge, production-grade machine learning systems for high-impact clients, particularly in the defence sector. Design scalable ML infrastructure, define best practices for ML deployment, and act as a technical advisor while mentoring junior engineers. Work in a cross-functional environment with strong emphasis on ethical, reliable AI and client collaboration.

Faculty AI London, United Kingdom

Hybrid Permanent Flexible Clearance Required

Lead Data Scientist

A Lead Data Scientist will lead complex, high-impact AI projects for clients in financial and professional services, defining technical direction and delivering production-grade solutions. The role involves mentoring teams, managing technical risk, and acting as a trusted advisor to clients in regulated environments. Innovation, cross-functional collaboration, and shaping long-term technical strategy are central to the position.

Faculty AI London, United Kingdom

Hybrid Permanent

Lead Machine Learning Engineer

Lead the technical direction of complex AI/ML projects, designing scalable production systems and guiding engineering teams in high-risk environments. Drive model deployment, lifecycle management, and integration into large-scale platforms while setting architectural standards. Mentor engineers, define roadmaps, and advise on emerging AI technologies to ensure high-impact, responsible AI delivery across public sector clients.

Faculty London, United Kingdom

Hybrid Permanent Clearance Required

Senior Data Scientist (Safety)

Lead high-impact AI safety projects by designing novel evaluation frameworks and robust software architectures for frontier AI labs. Mentor technical team members, ensure scientific rigor, and contribute to thought leadership through research and open-source contributions. Work at the intersection of national security and cutting-edge AI to advance responsible deployment.

Faculty London, United Kingdom

Hybrid Permanent

Senior MLOps Engineer

This role involves building and maintaining MLOps infrastructure to productionise advanced AI and computer vision models, from distributed training to deployment on cloud and edge devices. The engineer will optimise inference, manage model registries, and develop CI/CD and monitoring pipelines while working closely with research and software teams. The position requires strong hands-on skills in Python, containerisation, and GPU-accelerated systems, particularly NVIDIA Jetson platforms.

MFK Recruitment Brentford, London, TW8 9DE, United Kingdom £75,000 – £100,000 pa

Hybrid Permanent Clearance Required

Full Stack Python Developer

Design and build full stack applications that enable users to interact with advanced computer vision and AI systems, focusing on image and video analysis, AI visualisation, and integration with customer infrastructure. Develop intuitive interfaces and workflows in collaboration with engineers and end users, with influence over architecture and technology choices. Work primarily on-site in West London, with some remote flexibility.

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

Hybrid Permanent Clearance Required

Senior Software Engineer

Design and govern software architecture and CI/CD pipelines for safety-critical autonomous and robotic systems, integrating control, computer vision, sensor fusion, and simulation. Work closely with R&D and military end users during field trials. Balance rapid prototyping with scalable, compliance-ready architecture.

KO2 Embedded Recruitment Solutions Northumberland, United Kingdom £60,000 – £70,000 pa

Machine Learning Researcher

Conducts machine learning research to advance Darktrace's AI-driven cybersecurity platform, prototyping new models and integrating them into production systems. Works across research, engineering, and security teams to solve novel problems using language models, neural networks, and statistical methods. Focuses on developing optimised, deployable ML solutions for diverse environments including edge devices.

Darktrace Cambridge, CB2 3BJ, United Kingdom

Data Scientist

This role involves applying advanced data science and machine learning techniques to solve complex challenges across high-impact public and private sector projects. You will conduct research, develop cutting-edge solutions, and engage in the full data science lifecycle, from data collection to model deployment, while working in a highly secure environment.

Searchability NS&D Cheltenham, United Kingdom £45,000 – £75,000 pa

Hybrid Permanent Clearance Required

Lead Data Engineer

The Lead Data Engineer will develop mission-critical data solutions for National Security clients, working with cutting-edge technologies such as AI/DS, Cyber, Cloud, DevOps/SRE, and Platform Engineering. Responsibilities include designing and implementing sophisticated data pipelines, ensuring data quality, and leading challenging conversations with teams and senior stakeholders.

Searchability NS&D Gloucester, United Kingdom £65,000 – £85,000 pa

Hybrid Permanent Clearance Required

Expression of Interest- Red Team

The Red Team at the AI Security Institute conducts cutting-edge research to identify and mitigate vulnerabilities in advanced AI systems. The team collaborates closely with leading AI companies, UK officials, and allied governments to inform deployment, research, and policy decisions, focusing on misalignment, misuse, and control of AI systems.

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

On-site Permanent Clearance Required

Red Team Director

Leads advanced red teaming operations to proactively identify vulnerabilities in Barclays' IT systems through adversary emulation, penetration testing, and threat modelling. Drives transformation by integrating purple teaming, AI-enhanced testing, and early security integration across the technology lifecycle. Collaborates with SOC and senior stakeholders to improve cyber resilience, regulatory compliance, and organisational readiness against sophisticated threats.

Barclays United Kingdom

Delivery Engineer - Aerospace & Defense

Lead business development and delivery projects for an AI-driven simulation platform within the aerospace and defense sector. Engage with senior engineering and manufacturing leaders to identify opportunities, scope technical proposals, and drive customer adoption. Shape product direction through direct customer feedback and represent the company at industry events, balancing strategic relationship management with hands-on project execution.

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

Hybrid Permanent Clearance Required

Principal Solutions Engineer - Aerospace & Defense

Lead business development and technical delivery for AI-driven engineering simulation solutions in the aerospace and defense sector. Engage with senior engineering leaders to identify opportunities, scope projects, and drive adoption of the PX Platform. Shape product direction through customer feedback and represent the company at industry events, balancing strategic account growth with hands-on project oversight.

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

Hybrid Permanent Clearance Required

Staff Technical Product Manager

This role involves leading the product development of AI-powered tools for defense and national security workflows within Scale AI’s Global Public Sector team. The individual will define technical roadmaps, collaborate closely with engineering and machine learning teams, and shape products used by allied government and defense entities. The position requires deep technical expertise, hands-on prototyping, and the ability to operate in high-compliance environments such as air-gapped or classified systems.

Scale AI United Kingdom

On-site Permanent Clearance Required