I'm a Network and Security Engineer with 15+ years of hands-on experience in designing, implementing, and securing enterprise IT infrastructure across Bangladesh and the Middle East. My expertise spans Cisco, Fortinet, Juniper, Huawei, MikroTik, and other multi-vendor platforms. I specialize in routing, switching, firewall deployment, VPN, IP PBX, wireless, and unified communications, along with advanced solutions like Cisco DNA Center, ISE, CUCM, and UCCX.

 Key Skills:
• Multi-vendor configuration: Cisco, Fortinet, Juniper, MikroTik, Huawei, Ubiquiti, Dahua
• Advanced firewall setup: ASA, FTD, FirePower, FortiGate, SonicWall
• Enterprise VPNs: DMVPN, AnyConnect SSL, Site-to-Site IPsec
• IP Telephony: Cisco CUCM/UCCX, Avaya, Grandstream, Yeastar
• Load balancers: F5 BIG-IP, FortiWeb
• Cisco ISE, DNA Center, Secure Web, Umbrella

 Certifications:
• CCNA, CCNP R&S, CCNP Data Center, CCNA Security, CCNA Voice
• Cisco Certified Specialist – ENCOR, ENARSI, DCCOR
• NSE 1–4 (Fortinet), JNCIA, JNCIS, HCIA
• MikroTik MTCNA, MTCRE, MTCWE
• Sophos Certified Engineer