System Administrator with 5+ years of experience managing enterprise IT infrastructure for 10,000+ users. Skilled in Windows/Linux administration, cloud platforms (AWS, Azure, GCP), virtualization, and IT security. Proven track record in ensuring 99.99% uptime, reducing manual workloads by 35%, and improving operational efficiency through automation. Strong knowledge of ITIL practices, incident/change management, and compliance (SOX, PCI-DSS).