Senior Mechanical Solutions Engineer

NTT Ltd.; Watford; Hybrid; GBP 90,000 - 130,000; Full time

Job summary

NTT Ltd. is seeking a Senior Mechanical Solutions Engineer to be the mechanical SME within the Global Solutions Engineering team.

The role focuses on developing scalable data center solutions for hyperscale, cloud, and enterprise customers, with a strong emphasis on high-density and liquid-cooled environments. Based in the UK, Germany, or the Netherlands, you will support the full pre-sales lifecycle, collaborate with customers and sales teams, and engage in workshops and executive

Qualifications

• Bachelor's degree in mechanical engineering or a closely related field.
• Master's degree is a plus.
• Experience in mission-critical facilities, hyperscale data centers, or similar environments.

Responsibilities

• Serve as the EMEA Mechanical SME and escalation point for the Global Solutions Engineering organization.
• Lead mechanical solutioning for hyperscale and AI/HPC opportunities with emphasis on liquid cooling and high-density deployments.
• Translate RFPs and design criteria into mechanical concepts aligned with standards and site constraints.
• Develop schematic design concepts and prepare detailed schematic packages for pricing and scheduling.
• Perform engineering calculations for cooling load, water flow, pressure drop, and system operating envelopes.
• Define interfaces between liquid-cooling systems and base-building infrastructure; manage temperatures and water quality requirements.
• Engage in customer workshops and technical presentations; communicate complex topics to diverse audiences.
• Identify risks and trade-offs; communicate impacts on capacity, resiliency, cost and schedule.
• Support global projects and collaborate across time zones.

Skills

Mechanical engineering

Thermal engineering

Liquid cooling

Data center design

Pre-sales support

Communication

Education

Bachelor's degree in mechanical engineering

Master's degree (optional)

Tools

P&IDs

BMS/Controls

Hydraulic analysis

Job description

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

• 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 transfer, approach temperature, equipment capacity, diversity, failover, and system efficiency
• Familiarity with BMS / controls architecture, instrumentation, valve and actuator strategies, sequence-of-operation development, alarming, trending, and integration of customer cooling equipment with base-building controls
• Strong commercial awareness and ability to distinguish design intent from construction detail, enabling rapid solution development while producing enough definition for reliable pricing and scope establishment
• Strong written and verbal communication skills, including the ability to explain complex engineering issues to Sales, customers, senior leaders, and other non-discipline stakeholders
• Bachelor's degree in mechanical engineering or a closely related engineering discipline required; master's degree is a plus.
• Strong mechanical engineering experience gained within mission-critical facilities, hyperscale data centres, high-density computing environments, or other complex infrastructure environments
• Experience working for a hyperscaler, data center operator, engineering consultant, OEM, or major mission-critical contractor is highly desirable
• Professional Engineer / Chartered Engineer registration is desirable but not required where the role does not serve as Engineer of Record (EoR)

As the third largest data center provider, we operate over 150 data centers in more than 20 countries and regions. We understand that every business - large and small - has its own unique needs and goals. We offer local-to-global data center expertise, aligned with our connected platform of AI-ready data centers to create solutions that enable our clients to seamlessly scale their digital businesses, anywhere and anytime.