Mechanical Supervisor

Optima Site Solutions Ltd

Mechanical Supervisor

Location: London, UK

Role Overview
The Mechanical Supervisor is responsible for overseeing the installation, maintenance, and commissioning of mechanical systems across construction and maintenance projects.The role ensures all mechanical works are delivered safely, on programme, within budget, and in compliance with UK regulations and project specifications.

Key Responsibilities

Supervise on-site mechanical installation works including HVAC, pipework, ductwork, and plant systems
Coordinate daily activities of engineers, technicians, subcontractors, and labour
Ensure works are delivered in line with drawings, specifications, programme schedules, and quality standards
Monitor progress against programme, identify delays, and implement mitigation measures
Prepare progress reports and provide updates in project meetings
Manage materials, plant, equipment, deliveries, and on-site storage
Oversee labour allocation and subcontractor performance
Coordinate mechanical works with electrical, civil, structural, and commissioning teams
Support testing, commissioning, and handover documentation
Ensure compliance with UK health and safety legislation and site standards
Conduct toolbox talks, site inspections, and enforce safe working practices including PPE

Requirements

Minimum 5+ years’ experience in mechanical installation or building services
Proven experience supervising mechanical teams on construction projects
Experience working on large commercial developments within the UK
NVQ Level 3 or higher in Mechanical Engineering or Building Services Engineering
Valid CSCS Card (Supervisor level)
SMSTS preferred
Strong knowledge of UK building regulations and mechanical installation standards
Competent with Microsoft Excel and Outlook

Desirable

Experience working in live environments (e.g. hospitals, healthcare, operational sites)
Strong communication skills, both written and verbal
Ability to manage multiple workstreams and prioritise effectively

Salary & Benefits

Salary dependent on experience
Overtime paid where applicable
Employee-Owned Trust (EOT) scheme after 12 months’ service
Private healthcare
Private dental insurance
Life insurance
Pension scheme
Length of service reward scheme
Tradepoint discount scheme
Access to private financial advice

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