Principle Mechanical Design Engineer

Fortivum; Dublin; On-site; EUR 70,000 - 90,000; Full time

Job summary

A leading data centre services company based in Dublin is seeking a Principal Mechanical Design Engineer to lead the design and delivery of mechanical systems for critical data centre projects. This senior role requires extensive experience in HVAC and mission-critical environments, leadership skills, and a degree in Mechanical Engineering. You will mentor junior engineers and collaborate with cross-functional teams to ensure the highest standards in mechanical design, compliance, and innovation.

Qualifications

• 8+ years of relevant experience in data centre or mission-critical environments.
• Chartered Engineer status (CEng or working towards).
• Deep knowledge of mechanical systems in data centre design.

Responsibilities

• Lead mechanical design from concept through to construction for data centre projects.
• Oversee HVAC, chilled water, ventilation, and cooling system design.
• Manage and review detailed design calculations and technical reports.
• Collaborate closely with electrical and structural teams.
• Act as the primary technical contact for clients.
• Guide and mentor intermediate and junior engineers.
• Contribute to QA/QC processes and ensure compliance with best practices.
• Stay updated with emerging data centre technologies.

Skills

Leadership in mechanical design

Expertise in HVAC systems

Communication skills

Knowledge of Revit and AutoCAD

Technical mentoring

Education

Degree in Mechanical Engineering or Building Services Engineering

Tools

Revit

AutoCAD

Design calculation software

Job description

• Fortivum are now seeking a Principal Mechanical Design Engineer with experience leading the mechanical design and delivery of mission-critical data centre projects.
• This senior role involves driving technical excellence, mentoring junior engineers, and collaborating with multidisciplinary teams to develop robust, innovative, and efficient mechanical systems aligned with the high-performance requirements of data centre environments.

Key Responsibilities

• Lead mechanical design from concept through to construction for hyperscale and enterprise data centre projects.
• Oversee HVAC, chilled water, ventilation, and cooling system design in line with industry specific guidelines.
• Manage and review detailed design calculations, drawings, specifications, and technical reports.
• Collaborate closely with electrical, BMS, and structural teams to ensure seamless integration of all building services.
• Act as the primary technical point of contact for clients, attending meetings, design workshops, and site visits as needed.
• Guide and mentor intermediate and junior mechanical engineers, fostering knowledge sharing and technical development.
• Contribute to QA/QC processes, peer reviews, and design audits to ensure consistency and compliance with best practices.
• Stay up to date with emerging data centre technologies, sustainability measures, and regulatory standards.
• Support business development by contributing to technical proposals and client presentations when required.

Requirements

• Degree qualified in Mechanical Engineering or Building Services Engineering (or equivalent).
• 8+ years of relevant experience, with at least 3 years in data centre or mission-critical environments.
• Chartered Engineer status (CEng or working towards).
• Deep knowledge of mechanical systems in data centre design, including high-redundancy HVAC, free cooling, CRAC/CRAH, and chilled water systems.
• Proficient in Revit, AutoCAD, and design calculation software
• Excellent communication skills, with the ability to lead client-facing discussions and cross-discipline coordination.