Main responsibilities: - Expatriate management, visa, and travel support - Insurances arrangements: Life, PA, Medical insurance - Time & leave management - Site office management and administrative coordination - Transport services coordination for site personnel - Accommodation services management - HR admin and operational support - Recruitment and onboarding admin services support and coordination - HR information System support - Stakeholder relationship: internal/external relations - Operational staff work schedule arrangement - Overall administrative management and support for the operational site and facilities