Datacentre Operations Engineering Lead

À propos du poste

About Us

We’re a fast-growing GPU-as-a-Service provider, delivering scalable, high-performance compute infrastructure purpose-built for AI and HPC workloads. Operating across global data centres, we run mission-critical environments where uptime, throughput, and ultra-low latency are non-negotiable.

Role Overview

We are seeking an exceptional Datacentre Operations Engineering Lead to own the operational buildout, stabilisation, and long-term SLA execution of our Paris-Saclay deployment—Radiant’s flagship AI infrastructure site in Europe. This is a location senior technical leadership role with full accountability for on-the-ground engineering execution, team performance, and the continuous elevation of operational standards across next-generation, ultra-high-density hardware architecture.

You will take command of site commissioning and drive it through to operational steady state—establishing non-negotiable physical standards, embedding advanced liquid cooling workflows, and instituting rigorous working practices for high-density power distribution directly on the data centre floor. You will be the definitive technical authority at the site: the person who sets the bar, enforces it, and continuously raises it.

Working in close partnership with Infrastructure (HPC) SRE, Network Engineering, and Datacentre Strategy teams, you will translate organisational engineering standards into flawlessly executed daily operations. Your most critical mandate in your first months is to become the recognised expert on the site’s most demanding systems—including NVIDIA NVL72-class and busbar-based ultra-high-density compute platforms—and to define and document the working practices that will make these systems reliably supportable at scale.

As Radiant expands its EMEA footprint, the operational blueprints, team capability, and cultural standards you establish here will directly shape how we scale across the region.

What’s in It for You

Join a team operating some of the world’s most advanced high-performance computing infrastructure. As a Datacentre Operations Engineering Lead, you’ll work hands-on with cutting-edge GPU and CPU platforms — including the latest NVIDIA architectures — powering dense, large-scale compute environments used for AI, machine learning, and next-generation workloads.

This is an opportunity to build and lead at the absolute forefront of modern infrastructure, where reliability, scale, and performance matter every day. You’ll direct experienced engineers and collaborate across a globally distributed organisation that values openness, inclusion, technical excellence, and continuous learning.

We move quickly, solve meaningful challenges, and give people the space to make an impact. If you thrive in high-stakes environments, want genuine ownership of a world-class site, and are ready to define what great looks like for ultra-high-density AI compute operations, this role was built for you.

You can also expect:

- Exposure to industry-leading GPU and AI infrastructure

- Opportunities to grow alongside a rapidly scaling global business

- A collaborative, inclusive, and supportive engineering culture

- Real ownership and the ability to influence operational excellence

- Work that sits at the intersection of people, performance, and technology

- A modern, flexible, globally connected workplace with ambitious goals

- Key Responsibilities

Leadership & Operational Authority

- Own and direct day-to-day operations at the Paris-Saclay site, providing authoritative technical leadership and clear direction to all Datacentre Operations Engineers

- Set and enforce site-level operational standards—you are the final word on physical practices, hardware handling, cooling operations, and SLA delivery on the ground

- Drive escalation resolution with pace and decisiveness; own the outcome of critical incidents at site level

- Work closely with Infrastructure (HPC) SRE teams to implement operational standards, deployment procedures, monitoring improvements, and reliability initiatives

- Partner with Datacentre Strategy leadership on operational readiness, service improvement initiatives, and deployment scalability planning

- Contribute operational feedback and deployment learnings to support process development and future datacentre onboarding activities across EMEA

- Promote operational discipline, documentation standards, and continuous improvement practices across the local engineering team

Commissioning & Operational Readiness

- Lead site commissioning from physical infrastructure readiness through to operational steady state, setting uncompromising standards at every phase

- Establish and own all working practices for advanced liquid cooling systems, including CDU commissioning, coolant loop management, leak detection protocols, and steady-state monitoring

- Define and implement safe working procedures for ultra-high-density compute platforms including NVIDIA NVL72 (GB300 NVLink rack-scale) systems and busbar-based high-density power distribution

- Ensure all cabling, power, and cooling infrastructure is deployed to exacting standards, with complete documentation and handover packs for ongoing operations

High-Density Compute & Liquid Cooling Operations

- Operate, maintain, and troubleshoot advanced Direct Liquid Cooling (DLC) systems, including Cooling Distribution Units (CDUs), rear-door heat exchangers, in-row cooling, and associated coolant infrastructure

- Own and maintain cooling capacity awareness across the site; ensure that real world is fully reflected in our observability stack and capacity management tooling

- Execute and oversee structured break/fix procedures for NVL72-class and equivalent ultra-high-density GPU platforms, including GPU module swap, coolant loop isolation, busbar connection/disconnection, and firmware-level fault isolation

- Enforce safe working practices around high-density power distribution, including busbar…