Md. Rashedul Islam

Experience

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  REVE Systems

  Nov 2014 - Dec 2014

  ENGINEER- SOFTWARE SERVICE

  Soft Switch Configuration and Maintenance

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  Grameenphone Ltd

  Dec 2014 - Jun 2021

   Managing operational support of IPv4 and IPv6 technologies in Backbone, Datacenter and Internet gateway. Ensuring connectivity of Nokia Datacenter and Backbone Network through Nokia 7750 SR and Huawei NE40. Configuration and troubleshooting of Nokia fabric network component’s such as border leaf, fabric spine, spine, leaf, VRR, Juniper Firewall. Nokia Nuage network operations to maintain SDN solution through VSC, VSD, VRS and maintaining different NFVI orchestration component such as VIM, VNFM and NFVO. Ensuring flawless internet communication architecture with proper redundancy path using BGP. Troubleshooting data fall problem and rerouting the traffic among different tier 2 ISP to prevent the data outage. BGP routing design ascertaining with multiple paths toward ISP partner, BDIX, NOVONIX Internet Gateway network design verification and checking its feasibility toward link fault. Ensuring the proper IGW architecture with Aggregate router, Border router and Firewall with proper redundancy. Maintaining GP’s DNS, DHCP, Radius, Speedtest and CDN servers. Show less  Providing 24x7 operational IP support for upstream connectivity, backbone network and datacenter. NFVI DC IP Configuration, troubleshooting and maintenance which included Nokia 7750 SR, WBX, Huawei NE40.  Maintaining SDN network of the NFVI data center which was comprised with VSC, VRS and VSD. Ensuring IP connectivity among core routers and managing internet routing using BGP through border router and firewall setup for smooth and uninterrupted internet experience. Operation of GP’s MPLS backbone network and its connectivity using MPBGP and ISIS. Managing EfficientIP DNS server, OS installation, Network Configuration, hardware maintenance support, troubleshooting of unusual traffic pattern of Google Global Cache. GGC, FNA and AKAMAI servers. Automate repetitive tasks using Bash, Ansible, and Python Show less  Configuring maintaining & troubleshooting different IGP and EGP routing protocols such as OSPF, IS-IS, BGP, different routing features MPLS, VRF, L3 VPN, L2 VPN, VRRP; switching functions such as VLAN, VXLAN, RSTP. Node integration with backbone network and ensuring the connectivity with the redundancy. Deploying firewall zoning concept to separate different types of traffic such as payload traffic, signaling traffic, O&M traffic, untrust traffic and controlling the access between those zones. Configuring & troubleshooting different firewall access policy to ensure the inter zone communication. Maintaining internal DNS, DHCP, RADIUS and CDN servers. Internet Network and different security mechanism IPSec, GRE, DMVPN, VPLS, ACL configuration & maintenance. Show less

  • Lead Engineer

    Nov 2018 - Jun 2021

  • Senior System Engineer

    May 2017 - Oct 2018

  • System Engineer

    Dec 2014 - Apr 2017
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  Bangladesh Telecommunications Company Limited (BTCL)

  Nov 2021 - Mar 2023

  SENIOR ENGINEER (IP NETWORKS)

   Managing & Planning BTCL IP/MPLS Core & Backbone Network which was comprised with Cisco ASR and Huawei NE40 routers. Maintaining Upstream Connectivity of BTCL IP Network. Configuring and troubleshooting IP equipment in BTCL Core Network. Installing and configuring IP network equipment and services to support the infrastructure. Maintenance work for IP equipment up to district level. Design & operation of BTCL IXP (BTCL NIX) & BTCL's CDN Network. Plaining and assigning IPv4/IPv6 addresses for different services and devices. Providing operational support for all network and security issues. Taking an active part in the new solution design and development process in IP network. Maintaining BTCL's different traffic monitoring systems. Show less

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  University of Windsor Faculty of Law

  Jun 2023 - Oct 2024

  IT SUPPORT ASSISTANT

  Assist in providing hardware, software, network, and conference technical support to Law faculty, staff, students and sessional instructors. Provide ongoing maintenance, update software and hardware to computers, classrooms, and multimedia equipment. Help in creating documentation, operating procedures, and technical standards, media materials and services required by Law faculty, staff and students on and off-campus. Assist in setting up the digital recording, editing, and creation of CD and DVDs of multimedia video and/or audio recordings for special events. Show less