Senior Site Manager (Design & Build)

We are recruiting an experienced Senior Site Manager / Number 1 Site Manager for a long-term freelance opportunity with an established design & build contractor delivering high-end commercial fit-out projects across…

Pay rate £300 – £335/day
Contract type Contract
Posted 7 September 2026

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About this contract

We are recruiting an experienced Senior Site Manager / Number 1 Site Manager for a long-term freelance opportunity with an established design & build contractor delivering high-end commercial fit-out projects across London.

This is a genuine Number 1 on Site position. A Project Manager will lead the client-facing and commercial side, but the Senior Site Manager will have full day-to-day accountability for the physical delivery of the project.

You will take ownership of the site from mobilisation through to completion, driving the programme, managing subcontractors, coordinating trades and ensuring the works are delivered safely, to the required quality and on time.

Responsibilities:

Full day-to-day responsibility for site delivery
Lead and manage all subcontractors and site activities
Drive the programme and coordinate short-term works
Coordinate design information and resolve technical issues
Manage quality, inspections, snagging and handover
Ensure RAMS, permits, ITPs and site documentation are maintained
Coordinate MEP, finishes, partitions, ceilings, joinery and specialist packages
Chair site meetings and coordinate the wider site team
Maintain high standards of health & safety and housekeeping
Work closely with the Project Manager whilst taking ownership of the site operationRequirements:

Proven experience as a Number 1 / Senior Site Manager within commercial fit-out
Strong Design & Build / CAT A / CAT B experience
Experience delivering high-end London office or commercial interiors
Strong subcontractor and programme management skills
Technically strong with excellent attention to detail
Confident managing complex interfaces and multiple trades
Stable employment history delivering projects through to completion
CSCS, SMSTS and First AidLong-term freelance opportunity | London | Number 1 Site Manager | Design & Build / Commercial Fit-Out

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