Senior Mechanical Solutions Engineer

What we are looking for As the Senior Mechanical Solutions Engineer, you will be the mechanical engineering SME within our Global Solutions Engineering team, developing innovative and scalable data center solutions for hyperscale, cloud and enterprise customers. You'll translate complex technical and business requirements into practical, commercially viable designs, with a particular focus on high-density and liquid-cooled environments. Working closely with customers, sales teams and project delivery stakeholders, you'll support the full pre-sales lifecycle, from early-stage concept development through to solution presentation and customer engagement.

You'll provide expert technical guidance, help shape winning solutions, and act as a trusted advisor on mechanical infrastructure, products and services across our global data center platform. Based in the UK, Germany or the Netherlands, you'll be part of a globally connected engineering team, collaborating with colleagues and customers across EMEA, APAC and the Americas. This hybrid role offers the opportunity to contribute to some of the world's most advanced data center projects, with occasional travel primarily across EMEA and, where required, internationally.

What we will you do? Serve as the EMEA Mechanical SME and escalation point for the Global Solutions Engineering organization, supporting Solutions Engineers with technical interpretation, solution development, customer discussions, and technical risk identification Lead mechanical solutioning for hyperscale, AI/HPC, and enterprise opportunities, with strong emphasis on liquid cooling, high-density deployments, and fit-out of both new and existing data center capacity Translate customer RFP, SOQ, CDE, technical schedules, and design criteria into mechanical concepts that align customer requirements with NTT Data GDC standards, available site infrastructure, schedule, and commercial objectives Develop mechanical design concepts through approximately 30% schematic design, including P&IDs / flow diagrams, major equipment layouts, piping concepts, equipment connection points, system zoning, design criteria, sequence-of-operation intent, and supporting markups Prepare sufficiently detailed schematic packages and technical scope information for Construction / Preconstruction teams to establish fit-out pricing, identify Non-Recurring Costs (NRC), and assess schedule impacts and delivery risks Perform or validate engineering calculations including cooling load, water flow, heat exchanger duty, pressure drop, pump head, pipe sizing, approach temperatures, redundancy / failover capacity, and system operating envelopes Define interfaces between customer liquid-cooling systems and base-building mechanical infrastructure, including supply / return temperatures, water quality, filtration, treatment, controls, leak detection, redundancy, commissioning, and operational requirements Participate directly in customer workshops, technical deep-dives, RFP clarifications, site visits, and executive / technical presentations;

communicate complex mechanical topics clearly to both technical and non-discipline audiences Identify solution risks, constraints, assumptions, and early trade-offs; clearly communicate impacts to capacity, resiliency, maintainability, cost, schedule, and operational performance Support projects and customer opportunities globally; maintain flexibility to join meetings across EMEA, APAC and Americas business hours when required. Engage and often lead Solutions discussions with prospects, customers, and partners (either in person or via conference calls) with Account Executives when a technical resource is needed What are we looking for?

Expert-level understanding of data center mechanical infrastructure and thermodynamic / hydraulic principles, including chilled-water systems, condenser-water systems, cooling towers, dry / adiabatic coolers, heat exchangers, pumps, piping, valves, water treatment, air-handling systems, CRAH/CRAC equipment, and heat-rejection systems Deep practical expertise in liquid cooling for high-density compute, including direct-to-chip cooling, CDUs, technology cooling system / facility water system interfaces, secondary fluid networks, rack manifolds, coolant distribution, heat exchangers, leak detection, water quality / chemistry, controls, and commissioning considerations Ability to produce and check engineering calculations for fluid flow, pressure loss, pump head / NPSH, heat…