Mechanical Site Supervisor

We are seeking an experienced Mechanical Site Supervisor to join our team at Westfield London. The successful candidate will play a key role in the delivery of mechanical installation projects, providing effective site leadership and ensuring works are completed safely, efficiently, and to the highest quality standards. Working closely with project managers, subcontractors, clients, and stakeholders, you will oversee day-to-day site operations while driving programme performance and project success.

The ideal candidate will have a strong mechanical engineering background, proven experience supervising site-based teams, and excellent communication and leadership skills. A proactive, solutions-focused approach and commitment to delivering exceptional customer service.

• Demonstrated success in leading and delivering projects within a large, multi-disciplinary site team.
• Strong technical expertise, with the ability to coordinate, manage, and evaluate design and installation activities across multiple stakeholders and end-user clients.
• Support the preparation of conceptual designs, detailed engineering documentation, and project deliverables.
• Build and maintain strong customer relationships through excellent verbal and written communication skills.
• Proficient in Microsoft Office and able to work with company quality systems, programming tools, and commercial documentation.
• Promote a strong Health & Safety culture, ensuring full compliance with company procedures, site regulations, and project requirements.
• Highly organised, with the ability to effectively prioritise workloads for both yourself and project teams.
• Manage Electrical and Mechanical operatives, including the coordination of relevant subcontractors, to ensure efficient project delivery.
• Deliver projects in line with detailed programmes of work, meeting contractual obligations, deadlines, and quality standards throughout all stages of the construction process.
• Oversee project commissioning, testing, demonstrations, handover activities, and associated documentation to ensure successful project completion and customer satisfaction.
• Must be resident in, and legally entitled to work within, the UK.

• Previous experience as a Mechanical Site Supervisor.
• Good knowledge of Mechanical and Electrical building services.
• SSSTS qualification.
• Experience in BMS and Control would be advantageous.
• Ability to read and interpret technical drawings, schematics, and specifications.
• Experience with HVAC systems, including installation and commissioning.
• Experience in LTHW, CW and Drainage.
• Strong team player with great communication and leadership skills.
• Full, clean UK driving license.

• Competitive salary.
• A permanent full-time position.
• 25 days annual leave plus Bank Holidays.
• Enhanced pension contribution.
• Ongoing internal training and clear career development pathways.
• A supportive employer committed to employee Wellbeing.
• Genuine opportunities for career progression within a growing business.
• Access to employee flex benefits portal.

We are MARCH®. The leading provider of critical engineering services. Supporting the industries we all rely on to improve their infrastructure, process, and digital environments. We work together with our customers to maintain business continuity, optimise output, and drive new standards in productivity, reliability, and sustainability. We help deliver operational resilience, increased performance, and better environmental outcomes, across the board.

MARCH has ambitious plans and central to our future growth is attracting, developing and retaining the very best talent. Whether your role is onsite or office-based, engineering or support, we offer opportunities for all our people to develop their careers and maximise their potential. MARCH is committed to building teams that reflect a wide range of backgrounds, perspectives, and experiences. We believe diverse thinking strengthens engineering, and we welcome applications from all backgrounds. If you need any adjustments during the recruitment process, just let the team know.