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Site Administrator

Senior Site Administrator

full-timeMons, BelgiumPosted 1/6/2026

Salary negotiable

onsitesite administratormonsbelgiumfull-time

Join a leading contractor as a Senior Site Administrator in Mons, Belgium. This role offers a chance to manage critical site operations for a major construction project.

Key Highlights

  • Manage site administration for a major construction project in Belgium
  • Support senior leadership with correspondence and presentations
  • Oversee payroll, time management, and office logistics
  • Maintain efficient office systems and seek continuous improvement

Senior Site Administrator — Role Overview

This Senior Site Administrator position is crucial for ensuring the smooth operation of a busy construction site. The successful candidate will manage administrative functions, support senior management, and maintain efficient office systems.

Senior Site Administrator — Responsibilities

As Senior Site Administrator, you will:

  • Manage staff travel and accommodation needs.
  • Attend meetings, document minutes, and distribute to relevant parties.
  • Ensure employees have a suitable working environment.
  • Coordinate, manage, and order office supplies.
  • Manage holiday rotas for senior staff.
  • Manage the Administration, Payroll and Time Management team.
  • Assist with sensitive commercial tasks.
  • Organize data in spreadsheets and generate reports.
  • Manage office systems, procedures, and facilities.
  • Collaborate with IT to ensure timely ordering of IT supplies and hardware.
  • Manage office-related service agreements.
  • Provide professional secretarial support to the senior leadership team.
  • Maintain office policies in conjunction with HR.

Senior Site Administrator — Ideal Candidate

The ideal candidate will possess:

  • 5+ years of experience as an administrative assistant supporting senior management.
  • Qualification in Business, Level 5 or higher.
  • Experience working in a busy construction environment.
  • Excellent knowledge of Microsoft Office Suite (Outlook, Excel, Word, PowerPoint, OneNote, SharePoint).
  • Excellent working knowledge of SAP.
  • Experience in processing high volume employee time management systems.
  • Ability to handle confidential information professionally.
  • Excellent organizational and multitasking skills.
  • Ability to work independently and as part of a team.
  • Effective time management and prioritization skills.
  • Ability to take initiative and exercise good judgment.
  • Ability to work in a fast-paced environment.

Rewards & Package

Tier-1 contractor rates reflecting the seniority of this role. Full international assignment support including accommodation arrangements, flight allowances, and visa sponsorship as required.

Comprehensive benefits package: company healthcare plan, pension scheme with employer contributions, and access to extensive training and professional development programmes. Full package details confirmed at offer stage.

About the Company

Our client is a leading construction solutions provider managing complex engineering projects for global corporations.

Don't let self-doubt hold you back

At URecruit Global, we understand that many talented candidates face self-doubt or imposter syndrome and might hesitate to apply if they don't meet every single qualification. Your transferable skills and unique experience matter just as much as technical expertise. Don't let uncertainty hold you back — we encourage you to apply and share your full story.

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Frequently Asked Questions About This Senior Site Administrator Role

What does a Senior Site Administrator do in data centre construction?

A Senior Site Administrator in data centre construction is responsible for delivering specialist work on Tier III and Tier IV facilities. Day-to-day tasks vary by project phase but typically involve coordination with MEP teams, quality assurance, and ensuring build standards meet client specifications.

How do I apply for this Senior Site Administrator position?

Click "Apply Now" above and submit your CV. A specialist recruiter will contact you within 24 hours to discuss the role, your experience, and next steps. We support you through interviews and offer negotiation.

What salary can I expect for this role?

This role offers Salary negotiable. Salary depends on experience, certifications, and project complexity. Use our salary calculator for live market benchmarks across 20+ data centre roles.

About URecruit Global

URecruit Global is a specialist data centre construction recruitment agency serving the UK, Ireland, and Europe. Since 2010, we've completed 1,000+ placements across Tier III and Tier IV data centre builds with 500+ hiring partners. Our team guides you from application through to placement with expert support at every stage.