People Partner

About this role

About Radiant Radiant is redefining how AI infrastructure is built. We design and operate AI-native cloud platforms engineered for sovereignty, performance, and scale. Our infrastructure powers GPU-native workloads, multi-tenant control planes, and high-performance AI systems designed for the most demanding environments. We are not building a generic cloud. We are building purpose-built AI infrastructure — from powered land, to compute, to software.

As we scale, we're building this organisation from the ground up. We're looking for people who'd rather build the playbook than inherit one — who are comfortable doing the work themselves as well as directing others, and who can adapt as fast as our strategy does. This is a startup model: attitude and adaptability matter more to us than years of experience or the size of the team you've previously managed. The role You’ll act as a trusted advisor to managers and employees, providing practical guidance and support across employee relations, performance management, manager coaching and the wider employee lifecycle.

Combining hands-on HR expertise with a solutions-focused approach, you’ll help managers navigate complex people matters confidently, ensure consistent and compliant People practices across our global teams, and drive continuous improvement through data, technology and automation as Radiant continues to scale. What You'll Do Act as the day-to-day point of contact for employees and managers on HR questions across the full employee lifecycle: onboarding, policy interpretation, benefits, and performance management.

Managing employee relations, providing expert support and recommending appropriate actions to address queries or problems. Proactively reviewing data to spot employee relations trends and suggest solutions, coaching Managers to tackle issues early on. Serve as the local first line of defense for compliance, ensuring strict adherence to UK labor laws, employment standards, site-specific contracts, and safety protocols.

Help coordinate and run core HR cycles: performance reviews, compensation planning, and engagement surveys, for the London office. Draft, review and interpret employment contracts, variations and restrictive covenants. Own the review and update of people policies and the employee handbook, keeping them compliant and easy to use. Track legislative changes, including the Employment Rights Act reforms, and lead their implementation.