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Site Administrator
Site Administrator – London
About Mercury Mercury is the European leader in construction solutions. We build and manage complex engineering & construction projects for the world’s leading corporations. Our solutions help deliver technologies and life-changing advancements that connect people, communities, and businesses. Our people have the courage to be innovative, driven by determination and sharp focus to deliver with certainty. We encourage our people to realize their vision, placing them at the heart of everything we do within a supportive and challenging environment that fosters growth.
# Responsibilities
Timesheet Management
- Ensure all timesheets for the assigned site are accurately & efficiently updated and issued on time for SAP input
- Review and validate the accuracy of direct employees’ and staff timesheets compared to available records
- Collect subcontractor hours and upload time/manpower details via File Key for monthly SAP uploads
- Submit Regional Stats to the EHS Senior Safety Officer at the end of each month
- Generate End-of-Month Sub-Contractor Report and upload contractor details to SAP
Travel Management
- Timely booking of flights & hotels for all site staff
- Maintain site flight register and administrate records
- Manage & update staff rotation tracker for logistics planning
- Act as the primary point of contact for travel inquiries
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Vehicle Management
- Maintain Vehicle Register for assigned fleet
- Oversee Driving Applications, License management, car hire requests, and handle car fines
Accommodation Management
- Handle UK site staff apartment queries in collaboration with the UK Accommodation Supervisor
Staff Allowance & Expenses
- Track site personnel movements to ensure accurate Subsistence Reports for payroll submission
- Request, monitor, approve and process employee expenses
- Collect, maintain, and file employee documents (e.g., passports, A1 forms, EHIC) via File Key
Office & Administrative Support
- Maintain stationery levels and ensure office stock is sufficient
- Prepare and preempt meeting room arrangements, including catering (if required)
- Take minutes of meetings where requested
- Serve as the primary liaison between Head Office and site staff, facilitating queries/requests while ensuring timely responses
- Provide general office support (typing, printing, mail, project admin)
- Perform hourly, office duties as required
- Support Project Manager or peers during absences (holiday/illness)
- Assist Document Controller or maintain digitised filing systems as needed
- Handle and prepare delivery dockets/manuals (Operations & Maintenance documentation, tracking filings)
- Monitor and report on compliance with File Key structures and systems updates
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# Requirements
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Essential Criteria for the Role:
- At least 2 years of strong administrative experience
- Proficiency in Microsoft Word, Excel & Outlook plus basic PC literacy
- Ability to manage site paperwork, maintain schedules/records, and handle office organization
- Strong telephone etiquette and ability to communicate effectively
- Attention to detail and ability to work under pressure
- Multitasking skills with excellent interpersonal and organizational abilities
- Demonstrable pride in quality and presentation of work
- Exceptional communication skills
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Nice-to-Have (but not mandatory):
- Previous experience in construction or engineering
- Basic knowledge of SAP (training provided in most cases)
Mercury embraces an equal opportunities approach to hiring.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
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