Data Centre Engineer - AI Infrastructure

Fuse Energy is a forward-thinking renewable energy startup on a mission to deliver a terawatt of renewable energy, fast. We’re combining first-principles thinking with cutting-edge technology to build a radically better energy system. We’ve raised $210M from top-tier investors including Multicoin, Balderton, Lakestar, Accel, Creandum, Lowercarbon, Ribbit, Box Group and strategic angels like Nico Rosberg, the co-founder of Solana and GPs behind Meta, Revolut, Spotify and Uber. We’re building a fully integrated energy company: from developing solar, wind and battery projects to real-time power trading and distributed energy installations. By selling directly to consumers, we cut out the middleman, lower costs and pass savings on to customers.

We're looking for a Data Centre Engineer to lay the foundation for our AI compute infrastructure across the UK. You'll be our hands-on technical specialist on the ground, covering everything from the first site walkthrough to the moment a high-density GPU cluster goes live. You'll take empty spaces and colo data halls and turn them into operational AI compute sites end to end.

Responsibilities

• Assess prospective spaces and colo data halls for technical feasibility before commercial commitments are made, covering power capacity, cooling headroom, structural load, and M&E suitability.
• Drive the full deployment lifecycle from hardware selection and contractor briefing through to rack installation and commissioning sign-off, working directly alongside external and internal teams to maintain pace, quality, and safety standards.
• Manage HV/LV distribution, UPS systems, backup generation, and switchgear across sites, covering planned maintenance and fault response.
• Install, validate, and commission liquid cooling infrastructure, confirming thermal performance before hardware goes live.
• Maintain RAMS documentation and coordinate permit-to-work processes for all high-risk activities on site.

• Proven experience delivering infrastructure projects from the ground up, including DC fitouts, critical facility builds, or commissioning within colo or hyperscale environments, end to end.
• Deep technical knowledge of mission-critical power infrastructure covering HV/LV distribution, UPS, backup generation, and switchgear. Designed, maintained, or commissioned these systems directly.
• Cooling systems depth across CRAC/CRAH, chilled water loops, and CDUs. Liquid cooling hands-on experience (direct-to-chip, rear-door, or immersion) is a strong differentiator.
• Exposure to high-density compute: HPC hardware, GPU rack architectures, or high-density data suites, with a strong understanding of what extreme power density demands from the surrounding infrastructure.
• Highly autonomous and self-directed, with a track record of taking full technical responsibility for physical infrastructure projects in fast-paced environments.
• Open to candidates based anywhere in the UK. Our sites are nationwide.

• Competitive salary
• Biannual bonus scheme
• Fully expensed tech to match your needs
• Paid annual leave
• Breakfast and dinner allowance for office based employees