Mechanical Engineering Manager

Title: Mechanical Technical Manager Sector: Data Centres | Mission-critical Contract: Indefinite Location: Madrid, Spain A rapidly growing international infrastructure developer is seeking a Mechanical Technical Manager to support the delivery of a major hyperscale and AI-ready data centre portfolio in Spain. This is a client-side opportunity within a growing European platform, offering the chance to influence projects from early-stage development through detailed design, construction, commissioning and handover. Working closely with the Design Director and external consultants, you will provide technical leadership across cooling systems, HVAC infrastructure, chilled water networks, heat rejection systems, liquid cooling technologies and mechanical design strategy for large-scale mission-critical developments. Key Responsibilities - Lead mechanical design reviews from concept through detailed design, construction and commissioning. - Develop and review cooling strategies for hyperscale and AI-ready data centre environments. - Provide technical oversight of chilled water, HVAC, cooling plant and heat rejection systems. - Review equipment selection, sizing calculations, technical specifications and design deliverables. - Coordinate multidisciplinary design interfaces with electrical, civil, structural and architectural teams. - Support development of resilient, scalable and energy-efficient mechanical infrastructure. - Manage external consultants, contractors and equipment suppliers. - Participate in technical workshops, design reviews and value engineering exercises. - Support procurement of critical mechanical equipment and long-lead items. - Provide technical support throughout construction, testing, commissioning and handover. Requirements - Degree qualified in Mechanical Engineering or a related discipline. - Experience delivering data centres, mission-critical facilities or other technically complex projects. - Strong understanding of HVAC, chilled water and critical cooling infrastructure. - Experience managing engineering consultants and technical stakeholders. - Knowledge of commissioning, testing and integrated systems delivery. - Understanding of energy efficiency, resilience and lifecycle performance considerations. - Experience with hyperscale, colocation or high-density environments is advantageous. - Fluent English required. What's on Offer - Join a rapidly expanding international developer. - Work on hyperscale and AI-ready infrastructure projects. - Significant influence over design and technical strategy. - Long-term project pipeline and career progression opportunities. - Madrid-based role with project travel as required.