Assistant Site Manager

ZipRecruiter; London; On-site; GBP 80,000 - 100,000; Full time

Job summary

A leading construction contractor in London is seeking an Assistant Site Manager to support project delivery under the guidance of a Site Manager. The role involves project administration, health and safety compliance, and coordination of subcontractors. With at least 2 years of site experience, candidates should be detail-oriented with strong organizational skills. This position offers a developmental step toward becoming a Site Manager.

Qualifications

• Minimum of 2 years' experience on-site in construction.
• Strong emphasis on health and safety procedures.
• Good administrative skills and attention to detail.

Responsibilities

• Establish on-site filing systems for project records.
• Support health and safety duties including inspections.
• Assist in coordinating subcontractor attendance.

Skills

Health and Safety compliance

Project administration

Sub-contractor coordination

Record-keeping

Job description

Job Description

About the Company

We are a specialist construction contractor delivering complex structural alterations, basements, refurbishments, and high-spec fit-outs across London and the South East. With a reputation for technical precision, collaboration, and quality delivery, we work on architecturally ambitious residential and commercial projects for some of the UK’s leading clients and consultants.

Overview

The Assistant Site Manager plays a supporting role in the delivery of construction projects, working under the guidance of a Site Manager or Senior Site Manager. This position suits individuals with a minimum of 2 years' experience on-site and is intended as a developmental step toward a Site Manager role.

The role combines hands-on involvement with project administration, with a strong emphasis on health and safety, record-keeping, sub-contractor coordination, and progress reporting.

Core Responsibilities

Project Start-Up

• Establish on-site filing systems (both physical and digital)
• Set up Health & Safety documentation in accordance with the Construction Phase Plan
• Prepare and maintain project records including subcontractor packages, contact lists, and timelines
• Assist with implementation of quality control procedures
• Support the setup and maintenance of the project file on Procore

Project Delivery

• Support Health & Safety duties as outlined in the Company H&S Policy and Construction Phase Plan
• Prepare method statements, risk assessments, and complete weekly H&S inspections
• File and monitor subcontractor and internal method statements
• Assist in coordinating subcontractor attendance and progress against programme
• Help organise labour, plant, and materials within programme and budget constraints
• Support setting out duties where required
• Assist in preparation of client reports and neighbour communication bulletins
• Contribute to programming updates and track project progress
• Maintain accurate site records including diaries, marked drawings, photographs, RFIs, CVIs, minutes, and labour logs
• Support contract administration including issuance of formal notices, letters, and instructions in line with project timelines
• Adhere to Environmental Management System (EMS) requirements
• Promote waste minimisation and material reuse
• Provide administrative support to the Site Manager

Project Close-Out

• Ensure all project documentation is filed and archived appropriately
• Assist in the preparation of Operation & Maintenance (O&M) manuals prior to Practical Completion
• Continue administrative support through project close

General Duties

• Maintain up-to-date professional qualifications and certifications
• Share project learning and best practices with peers
• Ensure compliance with Business Management System (BMS)
• Identify and report areas for process improvement, innovation, or change
• Undertake any additional responsibilities relevant to the role