Robinson Prabhakar

Experienced IT Professional with hands-on experience managing Windows Server environments, Active Directory, Microsoft 365, Linux servers, and enterprise network infrastructure in a production setting. Proven ability to maintain system availability, manage user access, administer firewall appliances, and support virtualisation platforms across hybrid environments. Holds additional depth in endpoint security and security monitoring — able to bridge IT operations and security requirements within the same role.

Strong troubleshooter with experience working within SLA-driven environments and coordinating with vendors and stakeholders.

Systems Administrator at Infinite Computing Systems Pvt. Ltd. (2023-07 – 2026-02)

• Windows Server administration: managed Windows Server 2012 R2, 2019, and 2022 in a hybrid cloud environment — system availability, patch management, performance tuning, and incident resolution across the production environment.
• Active Directory and user management: administered user accounts, DNS, DHCP, and supported Group Policy configuration across the domain; handled user provisioning, access control, and offboarding.
• Microsoft 365 and Exchange Online: managed mailboxes, user provisioning, licence assignments, distribution groups, and access control using the M365 admin portal and PowerShell scripts based on Microsoft documentation.
• Linux server administration: configuration, maintenance, and troubleshooting on Ubuntu, CentOS, and Red Hat servers including package management, file system management, and service monitoring.
• Virtualisation platform management: administered VMware and Hyper-V environments — VM provisioning, snapshot management, resource allocation, and uptime monitoring across the infrastructure.
• Firewall and network operations: maintained FortiGate and SonicWall appliances — monitored IPsec VPN tunnels, reviewed security policies, analysed traffic logs, and managed ISP failover including manual switchover and roundrobin load balancing during outages.
• Endpoint security management: deployed and managed Seqrite and Symantec Endpoint Protection — package rollout, USB blocking, application control policy configuration.

Monitored

Bitdefender EDR alerts and escalated security events to the relevant team.

• Infrastructure monitoring: deployed and configured Zabbix and Grafana from scratch for real-time alerting and system health visibility across servers and network devices.
• Network analysis and troubleshooting: used Wireshark for traffic analysis and Nmap for network scanning to investigate and resolve connectivity issues and identify anomalies.
• Storage and backup management: administered Synology NAS and SAN storage; managed Synology C2 Cloud Backup for business data and SQL Server backup operations using dedicated tools.
• Vendor coordination and SLA management: coordinated with hardware and software vendors for procurement, renewals, and incident resolution; managed UPS battery replacement and network switch upgrades within SLA timelines.

B.Sc. in Computer Science – SIES College of Arts, Science & Commerce (2020 – 2023)