Full-stack Engineer (Product)

London March 7, 2026 Full Time
Application deadline: We are conducting interviews actively and aim to fill this role as soon as we find someone suitable.  THE OPPORTUNITY Join our Join our new AGI safety product team and help transform complex AI research into practical tools that reduce risks from AI. As a Full Stack Engineer, you'll work closely with our CEO (also Head of Product), other product engineers and Evals team software engineers to build tools that make AI agent safety accessible at scale for our customers. We are building products that monitor AI coding agents for safety and security failures. You will join a small team and will have significant ability to shape the team & tech, and have the ability to earn responsibility quickly.  You will like this opportunity if you care about building products that genuinely make AI agents safer and you thrive in high-paced environments and enjoy closely working with researchers. KEY RESPONSIBILITIES Product Development - Collaborate with the team lead to refine tool requirements, and translate them into technical specifications and architectures - Design, develop, and maintain features across the full stack, from responsive front-end interfaces (e.g. using React) to scalable backend services in Python - Write clean, well-tested, and maintainable code that meets our high standards for security and performanceTalk to users to understand their use-cases and needs Back-End Development - Design and implement scalable backend services that can process and analyze large volumes of AI agent logs - Implement RESTful APIs and data processing pipelines for AI agent logs - Implement secure API endpoints that allow customers to integrate our tools into their workflows - Build monitoring and logging systems to ensure reliability and performance Front-End Development - Build intuitive user interfaces that help customers understand and act on AI agent safety & security evaluations - Develop interactive data visualizations that effectively communicate complex AI behaviors, e.g. hour-long coding agent trajectories - Ensure responsive design and cross-browser compatibility for users - Implement authentication, authorization, and other security measures to protect sensitive customer data Collaboration & Communication - Work side-by-side with our researchers and software engineers. We’re “our own customer” since our researchers use our products - Participate in code reviews to maintain high code quality - Document technical decisions and implementations to facilitate knowledge sharing - Contribute to technical discussions about architecture, technology choices, and implementation approaches - Help the product team grow by sharing your own knowledge, offer thoughtful feedback and participate in trade off discussions
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