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Winthrop Technologies is Europe’s only dedicated data centre delivery partner, offering full turnkey solutions from design through to construction and commissioning. Headquartered in Dublin, we deliver projects across Europe and have become the most trusted name in our sector.  We are pleased to announce that we are currently seeking a Mechanical Commissioning (Cx) Engineer to join our team and support the delivery of large-scale, mission-critical projects. Reporting to the Cx Manager. Responsibilities: Carry out hands-on mechanical commissioning activities in line with approved commissioning plans and procedures. Execute mechanical commissioning protocols including system testing, fault-finding, diagnostics, and functional performance testing. Ensure HVAC and mechanical services operate in accordance with design intent, specifications, and performance criteria. Witness and support vendor commissioning activities, ensuring compliance with approved project documentation. Conduct day-to-day on-site commissioning operations, including system inspections and readiness checks. Manage and complete the commissioning tagging process in line with project procedures. Track the receipt, review, and compliance of commissioning documentation to achieve required Cx level sign-off. Support quality management for on-site service and commissioning activities. Ensure commissioning activities are delivered in line with project schedules and milestones. Adhere strictly to project Health, Safety, Environmental, and Quality (HSEQ) requirements at all times. Maintain clear communication with commissioning managers, vendors, and other project stakeholders. Requirements Relevant qualification in Mechanical Engineering, Building Services Engineering, or a recognised Mechanical Trade with appropriate training and experience. Minimum 3 years’ experience in a similar Mechanical Commissioning Engineer role. Strong commissioning experience on HVAC and mechanical systems within commercial, industrial, or data centre environments. Solid understanding of construction environments and safe systems of work. Strong analytical and problem-solving skills, with the ability to act decisively. Process-driven mindset with a strong focus on EHS and Quality Management Systems. Excellent communication and interpersonal skills. Proven ability to maintain positive working relationships with contractors and vendors on site. Benefits Work for a market leader in delivering turnkey data centre projects across Europe Competitive salary packages and a rotational roster Collaborative working environment Supportive career and fast-track development Winthrop Technologies Ltd. are an equal opportunities employer