Mechanical Site Engineer (Data Center)

Overview

About Decima International

Role Overview

Key Responsibilities

• Monitor and verify contractor installation of mechanical systems across data center construction activities.
• Confirm compliance with approved design documents, project specifications, quality requirements, and applicable installation standards.
• Oversee installation activities related to chilled water piping, CRAH/CRAC units, pumps, valves, expansion systems, and heat rejection equipment.
• Review contractor submissions, including mechanical shop drawings, P&IDs, method statements, ITPs, risk assessments, and installation documentation.
• Provide technical comments and coordinate resolution of mechanical design, installation, and quality issues.
• Coordinate mechanical interfaces with electrical, CSA, ICT, controls, and BMS teams to ensure alignment across disciplines.
• Verify flushing, pressure testing, system cleanliness, and compliance with OEM installation and startup requirements.
• Support OEM coordination activities and ensure contractor installation practices meet manufacturer requirements.
• Track construction progress and flag schedule, access, resource, and coordination risks impacting mechanical works.
• Participate in site meetings, OAC meetings, coordination reviews, and progress discussions.
• Communicate discipline-specific risks, constraints, and mitigation actions to project stakeholders.
• Witness pre-functional checks, OEM startups, and support integrated systems testing activities.
• Support temporary cooling strategies, phased system turnovers, isolation planning, and commissioning readiness activities.
• Support progress validation for contractor payment applications by verifying completed mechanical works.
• Assist with punch list preparation, closure tracking, as-built drawing review, and handover documentation.
• Support the identification, review, and closure of mechanical NCRs, deviations, and field change requests.

Essential Requirements

• Bachelor's degree in Mechanical Engineering.
• Proven experience in mechanical site supervision, inspection, and contractor installation monitoring.
• Strong technical knowledge of HVAC systems, chilled water systems, and related mechanical infrastructure.
• Experience reviewing mechanical shop drawings, P&IDs, method statements, ITPs, and system schematics.
• Strong understanding of construction quality verification, field inspections, pressure testing, flushing, and system cleanliness requirements.
• Ability to coordinate effectively across mechanical, electrical, CSA, ICT, controls, and BMS interfaces.
• Experience supporting commissioning readiness, pre-functional checks, OEM startups, and handover activities.
• Strong communication skills with the ability to report technical issues, risks, progress updates, and constraints clearly.
• Ability to work onsite in a fast-paced construction environment with contractors, consultants, OEMs, and client representatives.
• Nice to Have
• Direct data center cooling experience.
• Mission-critical facility exposure.
• Familiarity with redundancy concepts such as N and N+1.
• Experience with phased handovers and staged system turnovers.
• Experience working in live environment projects.
• Exposure to commissioning and integrated systems testing processes.
• Experience with OEM coordination processes.
• Familiarity with document management systems such as Aconex or Procore.
• Experience supporting temporary cooling strategies and isolation planning.
• Preferred Tools and Technical Exposure
• Mechanical shop drawings.
• P&IDs and system schematics.
• Method statements and risk assessments.
• Inspection and Test Plans.
• Pre-functional check procedures.
• OEM installation, startup, and maintenance manuals.
• Pressure testing and flushing procedures.
• Cooling load and redundancy diagrams.
• Field inspection and installation checklists.
• Document management systems such as Aconex or Procore.

Core Competencies

• Mechanical Site Supervision – Ability to monitor, inspect, and verify contractor mechanical installations in accordance with approved project requirements.
• HVAC and Chilled Water Expertise – Strong understanding of HVAC systems, chilled water networks, cooling equipment, and data center mechanical infrastructure.
• Quality and Compliance Focus – Strong attention to installation quality, inspection standards, testing requirements, and OEM compliance.
• Multidisciplinary Coordination – Ability to coordinate mechanical interfaces with electrical, CSA, ICT, controls, and BMS teams.
• Construction Progress Monitoring – Skilled at tracking progress, identifying risks, and escalating constraints related to access, resources, schedule, and installation sequencing.
• Commissioning Readiness – Ability to support pre-functional checks, OEM startups, system turnovers, and integrated systems testing preparation.
• Problem Solving – Ability to identify field issues, NCRs, deviations, and technical conflicts, and support timely resolution.
• Handover Support – Strong capability in punch listing, as-built reviews, documentation closeout, and phased handover support.

Please Note