Position: Project Site Administrator
Location: Mons, Belgium
Employment Type: Full-time, On-site
Languages: English & French (Dutch is an advantage)
Reports to: Senior Project Manager/Project Director
TSL – About us
TSL is a leading technical engineering and construction partner operating across EMEA, the Americas and APAC.
We are committed to creating the spaces to power the fourth industrial revolution, whilst ensuring we leave a positive environmental and social legacy for communities across the world. Specialising in Data Centres, Advanced Manufacturing, Logistics, Food and Pharmaceuticals, we are proud to deliver outstanding turnkey projects at speed, without compromise on safety or quality.
Our team at TSL is focused on working with our clients and the entire supply chain to create a simple agenda concentrated on getting things done. At the heart of what TSL does is taking the ‘noise’ out of project delivery whilst ensuring that we are always engineering best value for money and fit-for-purpose solutions.
Role Description
We are looking for a highly organised and experienced Project Site Administrator to support our on-site operations for a high-security data centre construction project in Mons, Belgium. You will be responsible for coordinating essential administrative and logistical functions to ensure efficient daily site operations. This includes supporting our site teams, liaising with subcontractors, and ensuring compliance with project protocols, timelines, and documentation standards.
Key Responsibilities
* Serve as the primary administrative support on-site, working closely with the construction management team, site engineers, safety personnel, and subcontractors
* Provide day-to-day administrative support to site management, engineers, subcontractors, and suppliers
* Coordinate site access, security clearances, and onboarding of subcontractors and visitors in accordance with project protocols
* Manage document control, including tracking of permits, drawings, safety documentation, daily reports, and project records, ensuring version control and audit readiness
* Support procurement and logistics coordination by monitoring material deliveries, maintaining PO and delivery trackers, and ensuring timely reporting of discrepancies or delays
* Assist in the preparation of site progress reports, meeting agendas, and minutes; maintain clear and well-organised filing systems (digital and physical)
* Act as a liaison between the site and back-office functions such as HR, finance, procurement, and compliance
* Monitor and maintain supplies inventory, stationery, PPE, and administrative equipment on site
* Ensure all administrative activities align with project safety, quality, and security requirements
Requirements
* Minimum 5 years of experience in a site-based administrative role within the construction or engineering sector; experience on data centre, pharmaceutical, or infrastructure projects is highly desirable
* Strong understanding of construction site workflows, documentation processes, and subcontractor coordination
* Proficient in Microsoft Office Suite (Excel, Word, Outlook) and comfortable using document control platforms (e.g., SharePoint, Aconex, or Procore)
* Experience with PO, invoice tracking, and delivery management processes
* Fluent in English and French; Dutch is a strong asset
* Strong attention to detail, excellent communication skills, and the ability to handle sensitive information with discretion
* Must be available to work on-site full-time in Mons and possess the ability to operate within a high-security environment
* Proactive, adaptable, and confident working independently in a fast-paced, dynamic project setting
Important
As part of our recruitment process, reference checks will be conducted at the job offer stage. By applying for this position, you consent to these checks as a condition of employment.