Assistant Site Manager – Major Project | Tier 1 Contractor | Cardiff
An exciting opportunity has arisen for an ambitious Assistant Site Manager to join a leading Tier 1 main contractor on a major, high-profile construction project in Cardiff.
This is a fantastic opportunity for an individual with a strong main contractor background who is looking to take the next step in their career on a large-scale, prestigious development that will become a landmark scheme within the region.
The Role – Assistant Site Manager
As Assistant Site Manager, you will support the Site Manager and Senior Site Team in delivering a complex, multi-million-pound construction project to the highest standards of quality, safety, and programme performance.
You will play a key role in coordinating subcontractors, maintaining site standards, and ensuring works are delivered safely and efficiently.
Key Responsibilities:
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Supporting the Site Manager in the day-to-day running of the site
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Supervising subcontractors and direct labour on site
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Ensuring works are delivered in line with programme and quality standards
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Maintaining strict adherence to Health & Safety regulations
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Conducting inductions, toolbox talks, and site inspections
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Assisting with progress reporting and coordination meetings
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Ensuring high standards of housekeeping and compliance
Requirements:
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Experience working for a main contractor in an Assistant Site Manager or Site Supervisor capacity
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Experience on large-scale commercial, mixed-use, or complex build projects
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Strong understanding of construction processes and sequencing
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SMSTS or SSSTS (SMSTS preferred)
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CSCS Card (Black or Gold preferred)
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First Aid at Work (desirable)
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Strong organisational and communication skills
Why Apply?
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Work on a major, prestigious project in Cardiff
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Join a respected Tier 1 contractor with an excellent industry reputation
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Clear career progression opportunities
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Exposure to complex, high-value construction works
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Competitive salary and comprehensive benefits package
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Long-term pipeline of secured projects
This role is ideal for an ambitious Assistant Site Manager looking to strengthen their experience on a landmark development while progressing within a highly regarded main contractor environment.
If you are an Assistant Site Manager in Cardiff or South Wales looking to work on a major construction project with a Tier 1 contractor, apply today to discuss this opportunity in confidence