Fazaluddin Shaik
Bangalore
Summary
Senior Network Engineer with a master's degree in computer networking and over 7 years of experience in designing and optimising enterprise LAN, WAN, and WLAN infrastructures. Focused on modernising network edges through SD-WAN deployments and Next-Generation Firewall integrations. Delivered significant improvements in network performance and latency through strategic routing optimisations, aligning network architectures with business objectives to enhance operational efficiency.
Overview
3
3
Languages
1
1
Certification
8
8
years of professional experience
Work History
Senior Network Security Engineer
Microland Ltd
05.2022 - Current
- Global Network Architecture & Design: Architect, implement, and standardize enterprise LAN, WAN, and WLAN infrastructures across AMER and EMEA environments; translate business requirements into High-Level (HLD) and Low-Level Designs (LLD) using Cisco two-tier and three-tier architectures.
- SD-WAN & Infrastructure Modernization: Lead SD-WAN edge operations, enterprise network migrations, bandwidth optimization, and circuit upgrades to enhance site readiness and edge performance.
- Core Routing & Enterprise Switching: Configure, maintain, and optimize multi-protocol environments including BGP, OSPF, EIGRP, static routing, FHRP redundancy (HSRP/VRRP/GLBP), and Cisco Catalyst switching platforms (Catalyst 9200, 9300, 9500 series, as well as legacy 3850 and 6500 chassis).
- Network Security & Policy Control: Enforce network access policies and secure traffic flows through custom IP ACLs, route maps, NAT configurations, and firewall administration across enterprise boundaries.
- Advanced L2 Operational Support: Provide L2 troubleshooting for complex LAN/WAN service disruptions, leveraging Wireshark for deep packet analysis and resolving multi-vendor service-provider escalations.
- ITIL Change Management & Services: Coordinate change control processes within ServiceNow, managing CI creations, IP reservations, DNS additions, DHCP scope provisioning, and HOT processes.
- Lifecycle Management & Documentation: Oversee vendor procurement, manage hardware/software upgrades (IOS/IOS-XE across routers, switches, and firewalls), and perform site audits to maintain accurate inventory, SOPs, and operational runbooks.
Network Engineer
Unitel Media Pvt Ltd
02.2019 - 05.2022
- Managed and monitored routing protocols including BGP, EIGRP, OSPF, and other LAN/WAN technologies to ensure optimal network performance.
- Proficient in installing, configuring, and Troubleshooting Cisco series Switches, and Cisco Catalyst (2960, 3850, and 6500 series).
- Troubleshot complex issues in multi-vendor network services to restore network functionality and ensure continuous service delivery.
- Provide Level-2 support and troubleshoot to resolve issues.
- Monitored system performance to identify and address potential issues. and ensure system availability and reliability
- Perform upgrades on existing networks equipment to resolve various network problems.
- Upgraded IOS on various Cisco Routers, Switches, and Firewalls.
- Identified and analysed network requirements, evaluated improvements to network performance, and performed regular backups to enhance system reliability.
- Proficient with IP access list, Cisco Discovery Protocol (CDP), Static Routing, Network Address Translation (NAT), VLAN Trunking Protocol (VTP), and FHRP (HSRP, VRRP & GLBP)
- Experience with Monitoring tools including Wire Shark.
- Cross-train and provide backup to other Network Engineers.
- Co-ordinate with Data Network and Security team and come up with possible solutions.
- Ensure tasks are completed in line with the SLA/s/KPIs.
- Work on physical site inventory verifications, gather information of various Cisco Networking devices and security devices to develop Run book and SOPs.
- Performed daily backups, optimized and managed LAN/WAN infrastructure, and troubleshoot and resolved any problematic issues.
- High-Level understanding of developing IT strategies, policies, and procedures per businesses requirements.
Education
Bachelor of Technology - Electronics and Communication Engineering (ECE)
Jawaharlal Nehru Technology University
HyderabadMasters - Computer Networking Engineering
University of Bedfordshire
London, U.KSkills
SD-WAN & Enterprise EdgeCisco SD-WAN (Viptela) vManage, vSmart, vBond cEdge & vEdge Routers Catalyst 8300 & 8000 Series Overlay Management Protocol (OMP) Application-Aware Routing (AAR) TLOC & TLOC Extensions Centralized & Localized Policies Direct Internet Access (DIA)
Routing & SwitchingBGP OSPF EIGRP Static/Dynamic Routing VLAN & Private VLANs STP Architecture (RSTP, MSTP, PVST) EtherChannel (LACP, PAgP) FHRP (HSRP, VRRP, GLBP) Layer 2 Security (DHCP Snooping, BPDU/Root Guard)
Wireless & MobilityCisco Catalyst 9800 Series WLC Cisco Embedded Wireless Controller (EWC) Legacy WLC (2500/3500 Series) Catalyst 9100 (9K) Series Access Points AP Provisioning & Deployment CAPWAP
Security & FirewallsPalo Alto Networks (PAN-OS) Firewall Provisioning Security Policies & Rules SVI Configuration Cisco ASA (Administration & Traffic Analysis) L4-L7 Access Control NAT/PAT
VPN & Core Network ServicesIPsec Site-to-Site VPN SSL VPN (AnyConnect) IKEv1/IKEv2 & NAT-T Cryptographic Algorithms TCP/IP Architecture DNS & DHCP ACLs
Language
English
Beginner
A1
Hindi
Advanced
C1
Telugu
Advanced
C1
Certification
- Cisco Certified Specialist - Security Core (SCOR 350-701) | [2025)
Timeline
Senior Network Security Engineer
Microland Ltd
05.2022 - Current
Network Engineer
Unitel Media Pvt Ltd
02.2019 - 05.2022
Bachelor of Technology - Electronics and Communication Engineering (ECE)
Jawaharlal Nehru Technology University
Masters - Computer Networking Engineering
University of Bedfordshire