Latest National Security Jobs

Spotlight

Machine Learning Engineer - National Security (Gloucestershire)

Gloucester, England, United KingdomWe’re looking for aMachine Learning Engineer to join a supportive, multidisciplinary team developing AI/ML systems to solve critical National Security challenges. As a Machine Learning Engineer, you’ll develop robust, production-ready machine learning solutions, exploring, prototyping, and deploying...

Mind Foundry Gloucester, Gloucestershire, United Kingdom

On-site Permanent Clearance Required

Spotlight

Senior ML Compiler Engineer

At Fractile, we’re taking a revolutionary approach to computing to run the world’s largest language models 100x faster than existing systems. Our fast-growing team is working at the cutting edge of the latest AI developments in both hardware and software....

Fractile Bristol, United Kingdom

Associate (National Security)

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

Hybrid Permanent

Senior Manager (National Security)

As a Senior Manager in the National Security and Safety team, you will lead the delivery of complex AI and data science projects for critical government partners. Your role involves building strategic relationships, developing proposals, and mentoring multidisciplinary teams to ensure projects meet rigorous operational and ethical standards.

Faculty AI London, United Kingdom

On-site Permanent Clearance Required

Software Security - Defence & Security – 2026 summer placement

This internship involves contributing to the research and development of secure systems in defence and security domains. You will support the creation of novel security technologies, perform threat analysis, and collaborate with multidisciplinary teams on projects involving software, electronics, and AI.

Cambridge Consultants United Kingdom

On-site Internship Clearance Required

PhD Software Security - 2026 summer placement

This PhD-level internship involves contributing to the research and development of advanced security technologies, including threat landscaping, post-quantum cryptography, and trusted execution. You will work with multidisciplinary teams on secure systems for defence and security domains, focusing on threat analysis, security architecture, and experimental validation.

Cambridge Consultants United Kingdom

On-site Internship Flexible Clearance Required

Cybersecurity Engineer

About the AI Security InstituteThe AI Security Institute is the world's largest and best-funded team dedicated to understanding advanced AI risks and translating that knowledge into action. We’re in the heart of the UK government with direct lines to No....

AI Security Institute London, United Kingdom

Research Engineer - Societal Impacts

The role involves working with a multidisciplinary team to design, implement, and run experiments that explore the societal impacts of advanced AI. Projects may include human-AI interaction studies, data scraping, and model evaluations to identify and mitigate risks.

AI Security Institute London, United Kingdom

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 Security Engineer, Incident Response

RDQ326R15The Incident Response team's mission is to respond to security threats, incidents and investigations to protect our customers, employees and enterprise data in a fast, efficient and standardised manner. We're a tight-knit team of security incident responders and incident handlers...

Databricks United Kingdom

Enterprise Security Engineer

About the TeamWithin the OpenAI Security organization, our IT team works to ensure our team of researchers, engineers, and staff have the tools they need to work comfortably, securely, and with minimal interruptions. As an Enterprise Security Engineer, you will...

OpenAI United Kingdom

Hybrid Permanent

Senior Security Engineer

As a Senior Security Engineer, you will play a crucial role in architecting and managing the security of Isomorphic Labs' AI-based platform and HPC infrastructure. You will work closely with DevOps, SRE, and other teams to ensure robust security practices, from secure architecture and IaC to threat modeling and incident response.

Isomorphic Labs United Kingdom

Hybrid Permanent

Security Engineer, Detection and Response - EMEA

About the TeamSecurity is at the foundation of OpenAI’s mission to ensure that artificial general intelligence benefits all of humanity.The Security team protects OpenAI’s technology, people, and products. We are technical in what we build but are operational in how...

OpenAI London, United Kingdom

Permanent

Director of Security

PolyAI automates customer service through lifelike voice assistants that let customers lead a conversation. Our voice assistants make it possible for businesses to deliver outstanding customer service that rivals their human agents. Our customers, which include the world’s leading logos,...

PolyAI London, United Kingdom

Senior Manager, Product Security

RDQ426R108About the RoleLead a team dedicated to embedding security into Databricks’ core platforms — including compute, identity, data plane, control plane, Kubernetes infrastructure, and developer frameworks.Shape company-wide security architecture by driving “secure-by-default” platforms, opinionated frameworks, and systemic guardrails.Partner closely with...

Databricks United Kingdom

Applied Scientist I

Join us at EntrustAt Entrust, we’re shaping the future of identity centric security solutions. From our comprehensive portfolio of solutions to our flexible, global workplace, we empower careers, foster collaboration, and build solutions that help keep the world moving safely.Get...

Entrust London, United Kingdom

Senior Software and System Architect

NVIDIA is looking for an outstanding passionate and talented Senior SW & System Architect to join our SW Architecture group. The position includes researching new technologies with focus on architecture definition of groundbreaking technologies in different domains - networking, security,...

NVIDIA United Kingdom