Senior IT Specialist

● Design, implement, and maintain enterprise network infrastructure.● Configure and troubleshoot Layer 2/Layer 3 switching and VLANs.● Manage and maintain Sophos Firewalls, including VPNs, NAT, security policies, IPS, web filtering, SD-WAN, and traffic shaping.● Deploy and manage MikroTik routers.● Administer Omada Controller and wireless infrastructure.● Install, configure, and maintain Linux servers (Ubuntu).● Manage DNS, DHCP, NTP, SMTP, FTP, SSH, and other network services.● Configure and renew SSL/TLS certificates for internal and external services.● Deploy and manage web hosting environments (Apache, Nginx, PHP, MySQL/MariaDB).● Manage domain hosting and website infrastructure.● Deploy and maintain VoIP/IVR systems.● Install, configure, and troubleshoot CCTV systems and NVRs.● Manage biometric/access control systems.● Administer Google Workspace (G Suite), including users, groups, security policies, and email services.● Deploy and maintain TrueNAS storage solutions, including SMB, snapshots, and backup.● Implement backup and disaster recovery solutions.● Monitor infrastructure performance and security.● Troubleshoot complex infrastructure issues and perform root cause analysis.● Document infrastructure, configurations, SOPs, and network diagrams.● Work closely with vendors and internal teams to deliver IT projects.● Ensure infrastructure availability, security, and compliance with best practices.

Networking● Layer 2 & Layer 3 Switching● TCP/IP● VLANs● STP● DHCP● DNS● NAT● VPN● Network troubleshootingSecurity● Sophos Firewall● Site-to-Site VPN● Remote Access VPN● IPS● Web Filtering● SSL Inspection● Traffic ShapingWireless● Omada Controller● Access Point deployment● Wireless optimizationLinux● Ubuntu● Bash scripting● Systemd● SSH● Cron● Package management● Service troubleshootingWeb Hosting● Apache● Nginx● PHP● MySQL/MariaDB● DNS Hosting● SSL Certificates● Virtual HostsCollaboration● Google Workspace (G Suite)● User Management● Email Administration● Security PoliciesStorageCommunication Systems● VoIP● IVRSecurity Systems● CCTV● NVR● DVR● Access Control Systems● Biometric Devices