Role Overview Reporting to the MEP Design Director, we seek an ambitious individual to join our mechanical design team. You'll be entrepreneurial, comfortable with ambiguity, and responsible for both strategic and tactical aspects of mechanical design. Collaborating with internal teams, you will deliver safe, sustainable, reliable, and cost-effective solutions from concept through commissioning, including detailed Digital Records and Operational BIM. You will: Lead mechanical design for Built to Suit (BTS) projects and modifications to Apto's Reference Design Own the mechanical components of Apto's Basis of Design (BOD), focusing on energy efficiency and sustainability Manage external mechanical design consultants and OFCI vendors Collaborate with Preconstruction and Commercial Directors to align designs with schedule and budget Basic Qualifications Bachelor's in Mechanical Engineering or related field 5/6+ years in industrial/commercial mechanical design, with strong data centre experience Expertise in mechanical systems: air handling, fluid distribution, heat exchange, refrigeration, fire protection, fuel systems Deep knowledge of pumps, fans, heat exchangers, sensors, BAS/BMS, and water treatment Proven ability to manage design and OFCI vendors throughout project life cycle Skilled in construction techniques and interpreting drawings Capable of managing multiple mission-critical projects and collaborating with clients Preferred Qualifications 5 + years with major data centre providers/end-users across European metros Experience leading engineering teams in large data centre environments Expertise in water systems design and value engineering during preconstruction Understanding of electrical systems design Strong record in producing high-quality documentation for standards and procedures Location Dublin-based, with approximately 30% travel across Europe Skills: Mechanical design engineer hybrid dublin data center