Commissioning Director, Hyperscale AI Data Centers

Nscale; Greater London; On-site; GBP 140,000 - 210,000; Full time

Benefits offered by this job

Relocation support

Job summary

Nscale in London is seeking a Commissioning Director to own the commissioning gate for all megawatt builds. You will define the standard, approve capacity handovers, and build a scalable commissioning and operational readiness function for a growing multinational portfolio.

The role covers advanced liquid-cooled data centre technologies, high and medium voltage testing, cross-border teams and 60–70% international travel.

Qualifications

• 15+ years in critical facilities engineering and commissioning at programme level.
• Ownership of gate/handover for large-scale data centre capacity.
• Experience with 50MW+ hyperscale AI data centres and integrated testing.
• Direct experience with liquid-cooled deployments and CDU tech.
• High/medium voltage commissioning with network operators.
• Led cross-border, multi-disciplinary technical teams.
• Knowledge of EPC contracting and evidentiary claims.

Responsibilities

• Author and own the Group Commissioning Execution Standard and evidence rules.
• Hold the acceptance gate with sign-off control under schedule pressure.
• Select, deploy and govern a single commissioning management platform.
• Ensure commissioning is embedded in every project master programme.
• Lead closed-loop liquid cooling methodology and testing.
• Lead high-voltage testing and energisation sequencing with operators.
• Recruit and develop an internationally mobile discipline.
• Own operational readiness and transfer to Operations.
• Set safe-working regimes and satisfy regulatory regimes.

Skills

Critical facilities engineering

Programme leadership

High-density liquid-cooled deployments

HV energisation sequencing

Contract literacy (EPC, etc)

Multinational team leadership

Willing to travel internationally

Able to build from first principles

Education

Electrical or Mechanical Engineering degree

Tools

Primavera P6

Job description

Nscale in London is seeking a Commissioning Director to own the commissioning gate for all megawatt builds. You will define the standard, approve capacity handovers, and build a scalable commissioning and operational readiness function for a growing multinational portfolio.

The role covers advanced liquid-cooled data centre technologies, high and medium voltage testing, cross-border teams and 60–70% international travel.