Latest Defence Jobs

Principal Agentic AI Engineer (Defence & Security)

This role involves designing and implementing cutting-edge AI solutions, particularly in the defence and security sectors. Responsibilities include leading technical projects, mentoring engineers, and collaborating with clients to win and deliver complex projects. The role requires a strong background in AI, Python, and software engineering, with a focus on agentic AI systems and quality assurance.

Cambridge Consultants United Kingdom

Principal Engineer - Human-Centric Technologies (Defence & Security)

This role involves designing and developing human-centric intelligent systems, conducting human subject studies, and translating scientific insights into engineering requirements. The Principal Engineer will lead complex projects, mentor team members, and contribute to business development and technical direction.

Cambridge Consultants United Kingdom

Frontend Engineer

This role involves building client-facing web applications to visualise insights from AI and machine learning models, working closely with data scientists and designers. The engineer will help establish frontend standards, maintain deployment infrastructure, and create reusable component libraries. Based in London with hybrid working, the role supports high-impact public sector projects and requires occasional on-site work with government clients.

Faculty London, Greater London, United Kingdom

Hybrid Permanent Clearance Required

Lead Machine Learning Engineer (Safety)

As a Lead Machine Learning Engineer, you will drive the technical strategy and deployment of secure AI systems across high-stakes domains. You will work closely with cross-functional teams, mentor engineering talent, and advise clients on AI safety and best practices.

Faculty London, Greater London, United Kingdom

Hybrid Permanent

Senior Research Scientist - AI Safety

Lead high-impact research in AI safety, focusing on red teaming and evaluations for frontier models in high-risk domains such as cybersecurity and CBRN. Develop novel mitigation strategies, shape research direction, and contribute to publications and stakeholder engagement. Work at the intersection of technical depth and real-world safety impact within a small, high-agency team.

Faculty AI London, Greater London, United Kingdom

Hybrid Permanent Clearance Required

Lead Machine Learning Engineer

Lead Machine Learning Engineer to define technical direction for complex AI projects, design scalable ML systems, and guide delivery across high-risk, ill-defined environments. Will lead architectural decisions, mentor engineers, develop reusable tools, and act as a technical advisor to clients in regulated sectors. Focus on operationalising models using Python and major cloud platforms with containerised deployment via Docker and Kubernetes.

Faculty AI London, Greater London, United Kingdom

Hybrid Permanent

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 New York, United States

Hybrid Permanent Clearance Required

Staff Backend Software Engineer - GO & Python

Build and maintain a platform for Data Scientists and Simulation Engineers to develop and deploy physics-informed AI models. Work on scalable backend systems using Python and Go, with full ownership from implementation to production. Collaborate closely with cross-functional teams and leverage domain expertise to shape engineering practices in a high-performance, event-driven environment.

PhysicsX London, Greater London, United Kingdom

Senior Security Engineer (AI Safety), London, Lausanne

This role involves securing AI-driven drug discovery systems by designing risk frameworks, protecting ML model artifacts, and implementing security controls across the AI lifecycle. The engineer will lead incident response for AI-specific threats, safeguard autonomous agentic workflows, and ensure compliance with evolving regulations like the EU AI Act. Close collaboration with ML researchers and platform teams is essential to embed security into high-velocity scientific innovation.

Isomorphic Labs Lausanne, Lausanne District, Switzerland

Hybrid Permanent

Senior Reporter

The Senior Reporter role involves reporting on the latest developments in AI and automation, moderating events and webinars, and producing high-quality editorial content. You will also build systems to improve the efficiency and quality of the editorial process, ensuring all content is credible and aligned with house style.

Lipton Media Mount Pleasant, Greater London £40,000 – £45,000 pa

Applied AI Engineer, Government, International

This role involves delivering AI solutions to international public-sector customers, working closely with government agencies and technical teams to identify and implement high-value applications. Responsibilities include hands-on implementation, strategic guidance, and collaboration with various stakeholders to ensure successful deployment and scale.

OpenAI London, Greater London, United Kingdom

Hybrid Permanent

Anthropic Fellows Program, The Anthropic Institute (Economics & Policy)

Conduct empirical research on AI's economic and societal impacts, using external data and models to explore labor markets, policy, and security implications. Work closely with mentors and contribute to actionable insights for AI safety and governance. Projects may involve methodological innovation and analysis of AI's broader effects on society.

Anthropic London, Greater London, United Kingdom

Hybrid Internship