People Operations Coordinator at Radiant in London

Job Title: People Operations

Reports to: People Manager

Location: London onsite

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.

About the role

We are hiring a People Operations Specialist to run the employee lifecycle at Radiant and to keep making it better as we grow.

We're looking for someone who loves building automations, agents and workflows, and wants to point that instinct at People Ops. You'll own the data and systems behind our People Ops stack (HiBob, Ashby, Notion), and use that ownership as the foundation for turning slow, manual, multi-tool processes into things that mostly run themselves. This is a role for someone who'd rather ship a working automation this week and improve it next week than spend a month planning the perfect system - someone who gets a genuine kick out of making the unglamorous stuff disappear. You’ll bring expertise, energy, and commercial thinking to help us elevate our People processes. The challenge in this role is to put the systems and frameworks in place that let us scale that quality, consistency, and fairness as we grow – without adding unnecessary bureaucracy.

What you'll do

People Operations (~80%)

• Run new joiner onboarding end to end, but treat every manual step you touch twice as a candidate for automation, with the goal is to keep making the process faster and lighter-touch, not just execute it reliably.

• Administer employee lifecycle changes (promotions, transfers, terminations) across systems, and build the guardrails - validation rules, alerts, review steps etc.

• Process documentation: create and maintain SOPs, checklists, and playbooks for onboarding, offboarding, and systems admin current as processes evolve, so nothing lives only in your head.

• Own and execute core HR operations across the employee lifecycle, including onboarding, employee changes and off-boarding.

• Ensure compliance with local labour laws and internal policies across different regions.

• Coordinate team socials, offsites, and the other moments that bring a distributed team together.

• Liaise with our payroll providers (UK and US) to process any changes, corrections, or new starters/leavers each cycle

• Keep policies and the employee handbook up to date and ensure compliance with any UK/US regulatory changes during the cover period

• Translate employee feedback into concrete action points and employee journey initiatives

• Employee first-line support: be the first point of contact for day-to-day employee questions on payroll, leave, benefits, and admin

• Administer employee lifecycle changes (promotions, transfers, terminations) across systems, and build the guardrails - validation rules, alerts, review steps etc, that catch data errors before they become a downstream mess in payroll or compliance.

Improving it (~20%)

• Support and contribute to improving, automating, and streamlining HR processes, with a focus on scalability and efficiency.

• Design, build, and maintain automations, workflows, and AI agents across our People Ops tooling (HiBob, Ashby, Notion) - from a simple triggered workflow to a more sophisticated internal agent - turning multi-step manual processes into things that run themselves.

• Contribute to and take ownership of parts of people-related projects and process improvements.

• Turn employee feedback into specific, sequenced actions with owners and dates — not a list of themes.

• Use data from our people systems to show where time is going, what is working, and what to fix next.

• Keep the People pages in Notion current, and improve them as you learn where colleagues get stuck.

• Partner with relevant stakeholders on anything touching UK employment or compliance judgement calls while you build fluency here. You own the system and the escalation path, and that ownership shifts to you over time.

What you'll bring

• You've worked in a high-growth environment, ideally remote and across multiple geographies, and you're comfortable working async across EMEA time zones.

• Experience building people systems in scaling companies, ideally through comparable periods of fast growth.

• A practical, hands-on approach – comfortable building from scratch rather than inheriting an established function.

• Strong judgement and a commercial mindset.

• The ability to influence managers and senior leaders through credibility rather than authority.

• Comfort with ambiguity, pace, and a deliberately low-process environment.