Mechanical Site Manager

The Construction Index Ltd; Newport; On-site; GBP 50,000 - 70,000; Full time

Job summary

A construction firm in Newport is seeking an experienced Mechanical Site Manager for a large-scale data centre project. Responsibilities include overseeing mechanical installation works, supervising subcontractors, and ensuring compliance with health and safety standards. The ideal candidate will have strong knowledge of HVAC systems and experience in managing large construction projects.

Qualifications

• Proven experience as a Mechanical Site Manager on large-scale construction projects.
• Strong knowledge of HVAC and mechanical systems installations.
• CSCS card and SMSTS or SSSTS certification required.

Responsibilities

• Manage day-to-day mechanical installation works on-site.
• Supervise subcontractors and ensure project alignment.
• Ensure compliance with health and safety regulations.
• Oversee testing, commissioning, and handover of mechanical systems.

Skills

HVAC installation

Mechanical systems knowledge

Supplier management

Health and safety compliance

Coordination skills

Education

HNC/HND or Degree in Mechanical Engineering

Tools

Microsoft Project

Job description

Overview

We are seeking an experienced Mechanical Site Manager to oversee the delivery of mechanical works on a large-scale data centre construction project in Newport. The role will involve managing site activities, supervising subcontractors, ensuring compliance with health and safety regulations, and coordinating with other disciplines to achieve project milestones to the highest quality standards.

Key Responsibilities

• Manage day-to-day mechanical installation works on-site, including HVAC, chilled water, CRAC/CRAH units, ductwork, pipework, and associated plant/equipment.
• Supervise subcontractors and ensure works are delivered in line with project programme, design, and specification.
• Liaise with project management, design teams, and other trade leads to resolve technical or coordination issues.
• Monitor progress against schedule, reporting delays, risks, or resource issues.
• Ensure full compliance with company health, safety, environmental, and quality standards.
• Oversee testing, commissioning, and handover of mechanical systems.
• Maintain accurate site records, including RAMS, permits to work, daily reports, and snagging lists.
• Support procurement activities by monitoring deliveries and checking installed materials against design and quality requirements.
• Act as the primary point of contact for mechanical subcontractors and client representatives on-site.

Qualifications & Experience

Essential

• Proven experience as a Mechanical Site Manager or Senior Supervisor on large-scale construction projects (preferably data centres, healthcare, pharmaceutical, or other MEP-heavy projects).
• Strong knowledge of HVAC, chilled water, and mechanical systems installations.
• HNC/HND or Degree in Mechanical Engineering, Building Services, or similar discipline (or equivalent practical experience).
• SMSTS or SSSTS certification.
• CSCS card.
• Demonstrable track record of managing subcontractors and mechanical packages from installation to commissioning.
• Excellent understanding of UK construction H&S regulations.

Desirable

• Experience on data centre projects.
• Knowledge of BMS integration and critical cooling systems.
• First Aid at Work certification.
• Proficiency in Microsoft Project or other planning tools.