Summary
- RED Engineering Design has appointed Mark Smith as chief executive officer, effective 1 July 2026.
- Smith joined RED in 2015, became chief operating officer in 2023, and has worked across data centre, mission-critical, and commercial developments.
- The leadership change comes as consulting engineers face more complex design pressure from AI power density, cooling, sustainability, commissioning, and programme risk.
RED Engineering Design has appointed Mark Smith as chief executive officer, effective 1 July 2026, placing a long-serving mission-critical engineer at the head of the consultancy as data centre design demands intensify.
Smith succeeds Thierry Kalfon, who has moved into a strategic leadership role within ENGIE Group. RED said Smith will lead the next stage of its strategic growth, building on its Vision 2030 plan.
Smith joined RED in 2015 and supported the expansion of its European business before becoming chief operating officer in 2023. The company said he has contributed to international growth, expansion into 12 new geographies, and RED’s development as an engineering consultancy for data centres and other mission-critical environments.
RED employs more than 1,000 specialists globally across data centres, the built environment, and energy. Its data centre services cover advisory, planning and due diligence, design and engineering, construction support, commissioning and handover, lifecycle support, and operational support.
Smith is a chartered engineer with more than 35 years’ experience and is a fellow of both the Institution of Engineering and Technology and the Chartered Institution of Building Services Engineers. His career includes complex data centre, mission-critical, and commercial developments across the UK and Europe.
The design bottleneck widens
Leadership changes at engineering consultancies deserve attention when they sit on a stressed delivery layer. Data centre demand is not only a problem for developers and grid operators. It is also pressing on the engineers who translate megawatt ambitions into resilient, buildable, operable systems.
AI infrastructure has made that translation harder. Higher rack densities change assumptions around electrical distribution, cooling architecture, structural allowances, containment, pumping, water treatment, controls, and maintenance access. Liquid cooling and high-density power trains reduce the margin for loosely coordinated design.
The design phase is carrying more commercial exposure as developers seek faster programmes while tenants demand flexibility for changing hardware generations. Engineering teams are being asked to design assets that can support equipment not fully fixed when the project starts, while still satisfying planning, sustainability, cost, and commissioning requirements.
A design error in a conventional commercial building can be expensive. In a data centre, it can affect energisation, leasing, customer fit-out, resilience certification, and future utilisation. Consulting engineers are not simply producing drawings; they are shaping the risk profile around revenue-generating capacity.
From MEP to lifecycle control
RED’s service spread reflects the way engineering work has moved beyond design packages. Due diligence, planning support, construction monitoring, commissioning, handover, and operational support now sit inside the same commercial discussion because data centre assets are financed and leased against performance assumptions.
Europe adds local friction to that work. Grid timelines vary, planning authorities are looking more closely at power and water, and public opposition can turn technical details into public issues. A design that meets a tenant brief can still fail if it cannot be permitted, connected, commissioned, or maintained within the required window.
Smith’s appointment gives RED continuity as the consultancy scales across more geographies and more complex projects. The harder test will be preserving technical quality while clients ask for repeatable designs that still adapt to local grid, climate, regulatory, and construction conditions.
The sector’s capacity story is often counted in megawatts and investment rounds. The engineering layer is less visible, but it is where power density, cooling, resilience, and cost are turned into a facility that can actually run.
