London-based hybrid
Reporting to Matt Craggs - Chief Technology Officer
The Role
We are seeking a Head of Data Centre Design. A senior, hands-on technical leader responsible for the end-to-end technical design governance of all Deep Green data centre projects. This role combines deep mechanical and electrical design expertise with practical delivery experience, working directly with external engineering and design-and-build (D&B) partners to ensure all solutions meet Deep Green’s reference architecture, performance requirements, and sustainability objectives.
You will act as the technical authority for data centre design decisions, remaining closely involved from concept through detailed design, construction, commissioning, and handover.
What you’ll be doing
Design Governance & Technical Leadership
Own, develop, and continuously improve Deep Green’s data centre reference architecture and technical standards.
Lead hands-on technical review, challenge, and sign-off of all externally produced designs.
Ensure all designs align with HPC performance requirements, resilience targets, heat-reuse objectives, and operational needs.
Chair technical design reviews, stage-gate approvals, and risk workshops.
Mechanical & Electrical Design (Supervision and Design Development)
Provide direct technical input and oversight across all MEP disciplines.
Lead design decisions for power architecture (HV/LV, redundancy, UPS, generators).
Work actively with our engineering teams to localise and continuously improve our reference architectures optimised for high-density HPC and heat recovery.
Define and govern heat export interfaces and integration with thermal networks.
Ensure designs are efficient, safe, maintainable, and operable over the asset lifecycle.
External Design & Build Partner Management
Translate Deep Green’s strategy and reference architecture into clear Employer’s Requirements and design briefs.
Work day-to-day with architects, MEP consultants, and D&B contractors to resolve design challenges.
Review RFIs, technical submissions, deviations, and change proposals.
Ensure as-built outcomes match approved designs and Deep Green standards.
Build, Commissioning & Handover Support
Support construction and commissioning teams with rapid technical decision-making.
Resolve design-related site issues and clashes.
Define commissioning strategies, acceptance criteria, and performance testing requirements.
Ensure full design compliance at handover, including accurate as-built documentation.
Operational & Asset Performance Alignment
Ensure designs support reliable, cost-effective, long-term operation.
Incorporate operational feedback into future design iterations.
Support investigations into performance issues with hands-on technical analysis.
Strategic & Technical Development
Contribute to Deep Green’s long-term technical roadmap for HPC and heat-reuse data centres.
Evaluate emerging technologies to improve efficiency, resilience, and sustainability.
Drive standardisation to enable scalable, repeatable deployment.
Stakeholder Communication
Clearly communicate complex technical matters to non-technical stakeholders.
Provide concise technical input to senior leadership, investors, and partners.
Support technical sections of business cases and investment materials.
What we’re looking for
Essentials
8–12+ years’ experience in data centre or mission-critical facility design.
Strong mechanical and electrical engineering competence.
Proven experience acting as technical authority over third-party designs.
Proven background delivering complex engineering projects
Experience with HPC environments, high-density cooling, and resilient power systems.
Strong understanding of D&B delivery models.
Practical, hands-on mindset with the ability to dive into detailed design when required.
Excellent communication and stakeholder management skills.
Degree in Mechanical, Electrical, or Building Services Engineering.
Chartered Engineer status desirable.
Comfortable working in a fast-paced, entrepreneurial environment
Nice to have
Experience in large infrastructure construction and operations
Familiarity with project and infrastructure finance
Experience of working within a fund-backed corporate
Why join us?
The opportunity to work at the intersection of sustainability and infrastructure
Collaborate with a sharp, mission-aligned team
Competitive salary and package.
About Deep Green
Deep Green designs, builds and operates decentralised and decarbonised data centres, recapturing and reusing the heat they generate for the benefit of everyone. We were established in 2021, famously providing heat into a swimming pool in Exmouth. Fast forward to 2025, and we are now providing heat into homes, public spaces, and industry through District heating Systems, always leading on the positive economic, environmental and societal impact of what we do. From humble beginnings, and a 50kW data centre, we’re now deploying 300MW across UK&I and potentially North America and Europe. We are backed by Octopus Energy generation, the renewable energy investment and asset management arm of Octopus Energy Group, one of the UK's largest energy suppliers.
We are a double-sided business. On the one hand we sell compute hosting to meet the demands of clients, notably with high performance, high density capacity requirements, and on the other, a public private partnership with heat host sites, where each site is a unique SPV.
About Deep Green
Deep Green designs, builds and operates decentralised and decarbonised data centres, recapturing and reusing the heat they generate for the benefit of everyone. We were established in 2021, famously providing heat into a swimming pool in Exmouth. Fast forward to 2025, and we are now providing heat into homes, public spaces, and industry through District heating Systems, always leading on the positive economic, environmental and societal impact of what we do. From humble beginnings, and a 50kW data centre, we’re now deploying 300MW across UK&I and potentially North America and Europe. We are backed by Octopus Energy generation, the renewable energy investment and asset management arm of Octopus Energy Group, one of the UK's largest energy suppliers.
We are a double-sided business. On the one hand we sell compute hosting to meet the demands of clients, notably with high performance, high density capacity requirements, and on the other, a public private partnership with heat host sites, where each site is a unique SPV.
Is this your next role? How to apply.
Please send an email introducing yourself and your CV or LinkedIn profile to
jobs@deepgreen.energy
