Assistant Site Manager

  • Sphere Solutions
  • City, Cardiff
  • 30/04/2026
Full time Construction

Job Description

We are recruiting for an Assistant Site Manager to support Senior Project Managers on a number of upcoming construction projects in the Cardiff area, with works commencing late May / June for our client who is a large sub-contractor working with Tier 1 and Tier 2 contractors.

This is a 12-week temp-to-perm opportunity, offering a strong pathway into a permanent role for the right candidate.

The Role
You will work closely with Senior Project Managers to support the day-to-day running of site operations. Responsibilities are expected to include assisting in the coordination and supervision of subcontractors, supporting site health & safety compliance and documentation, monitoring progress against programme and reporting updates, assisting with site paperwork, records, and quality checks, and helping ensure works are delivered on time and to required standards.

Requirements
Previous experience in a similar role (e.g. Assistant Site Manager or Site Supervisor) is required, along with experience working on construction sites in a supervisory or coordination capacity. A good knowledge of bricklaying packages. A valid CSCS card is essential, while SMSTS or SSSTS is preferred. First Aid is desirable. Candidates should have strong communication and organisational skills. A full UK driving licence is preferred depending on site allocation.

Package & Terms
Initial 12-week temporary contract with a day rate (dependent on experience). There is an opportunity to transition into a permanent role with our client

Permanent package includes PAYE (mandatory), holiday pay, and discussion around company vehicle and fuel card, as well as company phone and laptop.

Important Information
All applicants must be aware that this role is temp-to-perm and not a long-term freelance position. Any permanent offer will be directly with our client under PAYE terms.

To Apply
Please submit your CV along with your current availability or notice period, relevant certifications, and a summary of similar project experience.