Latest AI Security Institute Jobs

Research Engineer, Machine Learning (Reinforcement Learning)

This role involves advancing reinforcement learning in large language models, focusing on developing agentic systems for computer use, code generation, and reasoning. The engineer will build scalable RL infrastructure, design training environments, and collaborate across research and engineering to implement safety and performance improvements at scale.

Anthropic London, United Kingdom £260,000 – £630,000 pa

Research Engineer, Machine Learning (RL Velocity)

This role involves building and optimizing the machine learning infrastructure that supports Anthropic’s reinforcement learning research. You'll work closely with researchers to improve training efficiency, debug performance bottlenecks, and develop tooling that accelerates model development. The position focuses on high-leverage platform improvements that scale across the entire research team.

Anthropic London, United Kingdom £370,000 – £630,000 pa

Research Engineer, Pretraining

This role involves conducting research and engineering to advance large language models, focusing on model architecture, optimization, and scalable training infrastructure. You'll work across the full stack—from low-level system optimizations to high-level model design—while contributing to scientific experiments and tooling. The position emphasizes collaboration, interpretability, and AI safety within a cohesive research team.

Anthropic London, United Kingdom £260,000 – £630,000 pa

Research Engineer, Pretraining Scaling - London

This role involves owning critical parts of Anthropic's production pretraining pipeline for large language models, focusing on reliability, performance optimization, and debugging across hardware, networking, and training dynamics. The engineer will run experiments to improve training efficiency, respond to incidents during model launches, and collaborate closely with research and systems teams. It’s a high-impact, operational role blending deep technical engineering with empirical research in a fast-paced, safety-focused AI environment.

Anthropic London, United Kingdom £260,000 – £630,000 pa

Research Engineer, RL Scaling Science

This role involves designing and running large-scale reinforcement learning experiments to understand scaling effects across model size, compute, and task horizon. The engineer will build benchmarks for long-horizon RL, debug system-level issues that emerge at scale, and translate validated research findings directly into production training pipelines. The position sits at the intersection of research and systems engineering, requiring deep empirical rigor and close collaboration with both research and infrastructure teams.

Anthropic London, United Kingdom £375,000 – £640,000 pa

Staff Software Engineer, Inference

This role involves designing and maintaining large-scale, performance-sensitive distributed systems that serve Claude to millions of users globally. The engineer will work across the full inference stack, building intelligent routing, autoscaling, and deployment systems for AI models running on diverse accelerators across multiple cloud platforms. The position emphasizes real-time system resilience, compute efficiency, and close collaboration with research teams to enable next-generation model development.

Anthropic London, United Kingdom £325,000 – £390,000 pa

Staff+ Software Engineer, Safeguards Infrastructure

Build and maintain foundational systems for AI safety, oversight, and intervention mechanisms, focusing on detecting unwanted model behaviors and preventing misuse. Develop infrastructure for data management, evaluation systems, and tooling for human and agentic review while ensuring high operational reliability at scale. Work closely with cross-functional teams to implement robust, multi-layered defenses in a safety-first AI environment.

Anthropic London, United Kingdom £325,000 – £395,000 pa

Sales Manager, Nonprofit & Education, EMEA

Lead and build a sales team focused on driving adoption of AI systems within mission-driven organizations across Europe, the Middle East, and Africa. The role involves securing strategic partnerships with nonprofits, foundations, educational institutions, and social enterprises, while navigating complex stakeholder ecosystems, regulatory environments, and funding models. This is a player-coach position requiring hands-on deal closing, team development, and shaping of regional sales strategy in a rapidly evolving environment.

Anthropic London, United Kingdom £280,000 – £330,000 pa

Hybrid Permanent

Computational Protein Designer

Design and engineer functional proteins using proprietary generative AI models, bridging machine learning and experimental validation teams. Analyze structural biology and sequence data to generate and refine protein designs, then collaborate closely with wet lab scientists to test and iterate on results. Contribute to model improvement, data systems, and scientific knowledge sharing in a high-impact synthetic biology environment.

Latent Labs London, United Kingdom, United Kingdom

Hybrid Permanent

Staff Software Engineer - Machine Learning

This role involves leading the technical strategy for ML/AI use cases in the UK, coordinating ML engineering efforts across multiple teams, and providing technical consultancy. You will drive MLOps standards, collaborate with data science teams, and represent Capital One in external ML/AI forums.

Capital One Bunhill, London, United Kingdom

Hybrid Permanent

Head of Engineering

This role involves leading and scaling the Engineering team, establishing strong engineering processes, and providing architectural oversight for a sophisticated AI-driven platform used by leading pharmaceutical companies. The position offers significant scope for impact and progression within a high-growth Series A business.

Harnham - Data and Analytics Recruitment London, United Kingdom £120,000 – £130,000 pa

Remote Permanent

Senior QA Automation Engineer

Senior QA Automation Engineer - FinTech Trading Platform - London / Hybrid(Tech stack: C#, .NET Core, .NET 8/9/10, AI-Assisted Testing, Test Automation, Reqnroll, SpecFlow, NUnit, Azure DevOps, SQL Server, ASP.NET Core, REST APIs, CI/CD, BDD, Automation Frameworks, Investment Management, Wealth...

Noir London, United Kingdom £50,000 – £65,000 pa

Research Infrasructure Engineer

This role involves supporting and developing large-scale research computing environments, including HPC, AI, and data-intensive infrastructure. The engineer will work closely with researchers to deliver secure, reliable, and scalable technical solutions, while also contributing to automation, documentation, and user training. The position supports advanced computing platforms in a hybrid working environment.

Tate London City Southampton, United Kingdom £41,000 – £49,000 pa

Hybrid Permanent

Software Developer

Develop and enhance a cloud-native middleware platform using AWS and event-driven architecture, with some GCP involvement. Build scalable, serverless integrations across a growing technology stack. Collaborate within a multidisciplinary team to deliver robust system-to-system solutions.

Robert Half Corby, NN17 9SA, United Kingdom £50,000 – £70,000 pa

Python Developer

Develop and enhance internal applications, APIs, and automation tools using Python, with a focus on solving business challenges in collaboration with non-technical stakeholders. Work across the full development lifecycle from concept to delivery, contributing to AI and business automation initiatives. The role emphasizes ownership, direct engagement with business teams, and a clear path to a broader engineering role.

Tenth Revolution Group London, United Kingdom £35,000 – £45,000 pa