Saju John Mathew

• Deployed OS upgrades, applied security patches, and implemented firewall/antivirus solutions in alignment with IT policies.
• Configured and maintained system hardware, software, and network components to ensure smooth operations.
• Monitored system health and resolved complex technical issues within SLA timeframes.
• Managed user accounts, permissions, and access controls to maintain security compliance.
• Automated recurring administrative tasks using PowerShell and Bash to improve operational efficiency.
• Troubleshot and resolved firewall and network-related issues, improving overall system reliability.

Key Achievements & Projects:

• Designed and implemented complete network infrastructure for a new office, including WiFi, CCTV integration, VLANs, guest VLANs, and site-to-site VPNs for secure inter-office connectivity.
• Configured and deployed High Availability (HA) clusters on FortiGate firewalls across major office locations to ensure redundancy and minimize downtime.
• Migrated office server infrastructure from VMware to Proxmox, reducing licensing dependencies and enhancing virtualization performance.
• Improved wireless network performance by optimizing channel allocation and coverage, reducing interference, and maximizing speed and airtime.
• Deployed secure remote access VPN solutions with role-based access controls, enabling users to connect to the corporate network based on specific requirements.