
Rashid
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Senior Network Administrator
ABC • Full-time
Feb 2010 - Present • 16 yrs 6 mos
Senior Network & Datacenter Administrator with over 16 years of experience in designing, implementing, securing, and managing enterprise and service provider networks for government organizations. Experienced in network infrastructure, firewall administration, data center operations, VPN technologies, cloud networking, and enterprise security. Key responsibilities include designing and maintaining Layer 2 and Layer 3 networks using VLANs, OSPF, BGP, Static Routing, VRRP, STP, MSTP, and Inter-VLAN Routing. Configured and managed FortiGate, FortiWeb, Huawei, Cisco ASA, Palo Alto, and Sangfor firewalls, implementing NAT, DNAT, IPSec VPN, SSL VPN, IPS/IDS, security policies, and high-availability solutions. Managed Web Application Firewalls (FortiWeb), secured web applications, optimized firewall policies, and resolved complex network and application connectivity issues. Supported Azure networking, hybrid cloud connectivity, and secure integration between on-premises and cloud environments. Performed advanced troubleshooting using Wireshark, packet captures, CLI diagnostics, PRTG, Zabbix, and Nmap. Worked closely with developers, cloud teams, ISPs, and vendors to deliver secure and reliable network services. Prepared technical documentation, implementation plans, SOPs, and network diagrams. Led infrastructure upgrades, network migrations, disaster recovery initiatives, and provided Level 3 technical support while ensuring high availability and optimal performance. Core Skills: Enterprise Networking, Routing & Switching, FortiGate, FortiWeb, Cisco, Huawei, Palo Alto, VPN (IPSec/SSL), Network Security, Azure Networking, Data Center Operations, Linux Administration, DNS, DHCP, NAT, High Availability, Wireshark, PRTG, Zabbix, Nmap, Technical Documentation, and Infrastructure Management.