Senior Project Manager - Data Centre Delivery… at OVERWATCH · London

About Overwatch EMEA

Overwatch EMEA extends Overwatch Mission Critical’s proven delivery model across Europe, the Middle East, and Africa. We provide construction professional services, talent acquisition, and delivery leadership for mission-critical infrastructure projects, applying the same operational discipline, reliability, and veteran-led expertise that define our work in the United States.

From greenfield hyperscale development to complex retrofits and live-site expansions, our teams support the safe, efficient delivery of high-performance data center environments. At Overwatch, it’s more than a job - it’s a purpose.

Position Overview

We are seeking an Owner’s Representative Senior Project Manager to lead the end-to-end delivery of hyperscale data centre programmes - from early-stage development through to commissioning and operational handover.

Acting as an Owner’s Representative, you will take accountability for coordinating and driving delivery across real estate, design, construction, and commissioning functions - ensuring projects are delivered safely, predictably, and in line with operational requirements.

This role requires a construction-led leader with strong MEP and commissioning literacy, capable of operating across the full lifecycle while proactively managing risk, sequencing, and stakeholder alignment.

Responsibilities

End to End Delivery Leadership

• Lead data centre delivery across full lifecycle: site acquisition, design, permitting, construction, commissioning, and GA.
• Ensure alignment and continuity between development, construction, and operational readiness phases.
• Drive programme momentum and remove delivery blockers.

Owner’s Representation & Governance

• Act as the Owner’s representative across all delivery partners.
• Oversee Tier 1 contractors, consultants, and vendors.
• Challenge delivery strategies, sequencing, and commercial exposure.
• Provide structured reporting to senior stakeholders.

Construction, MEP & Commissioning Oversight

• Oversee CSA and MEP delivery through all construction phases.
• Ensure effective integration of HV/LV infrastructure and critical systems.
• Support commissioning strategy through Level 1-5 and IST.
• Validate readiness for energisation and operational handover.

Risk & Programme Management

• Identify risks across design, procurement, construction, and commissioning.
• Monitor programme performance and critical path.
• Support change management and mitigation strategies.
• Anticipate delivery issues before they materialise.

Stakeholder Coordination

• Interface with real estate, design, construction, and operations teams.
• Align cross-functional stakeholders to programme objectives.
• Act as a central point of accountability across delivery.

Continuous Improvement

• Capture lessons learned across project lifecycle.
• Support development of delivery standards and best practices.
• Contribute to portfolio-level improvements.

Qualifications

• 12+ years’ experience delivering mission-critical or data centre projects.
• Demonstrated experience across full project lifecycle (development > GA).
• Strong understanding of:
  • MEP systems & infrastructure
  • Commissioning (Level 1-5 / IST)
  • Construction sequencing & delivery models
• Experience operating client-side or within an Owner’s Representative model.
• Proven hyperscale or large-scale project exposure (30MW+).

Core Competencies

• Ownership & accountability for delivery outcomes
• Strong technical understanding of data centre infrastructure
• Proactive risk identification and mitigation
• Ability to operate in complex, multi-stakeholder environments
• Clear, structured communication at senior level

What Success Looks Like

• Predictable, on-time delivery across full lifecycle
• Minimal disruption during commissioning and go-live
• Strong alignment between construction and operations
• Trusted leadership presence across stakeholders