Senior Network Engineer, Infrastructure, Support & Operations

• Aug 2023 - Present

Senior Engineer, Network Operations

• May 2022 - Jul 2023

 Automate repeated tasks using Ansible. User's privilege management using FUDO[configure user, account, safe, listener and manage] Ensure network security using firewall [Paloalto, Checkpoint], DDoS protection device [ Radware], DNS security [Cisco Umbrella & Efficient IP DNS Gurdian] User Remote Access VPN connectivity administration & maintenance using Cisco FTD, Cisco Any Connect , RSA 2 Factor & Certificate based authentication. Developed and implemented procedures to improve network performance and optimize resource utilization.Collaborated with other departments to ensure seamless integration of Core Network with other systems and applications. Resolve day to day network related incidents / service request tickets from stakeholders /users. Acknowledge, update and closure incidents following all steps of incident management according to ITIL best practices aiming to resolve them on SLA target time. Prepare MIR & RCA for management reporting. Coordinating IT security team to ensure regular VAPT and mitigate risk factors. Ensure regular updating and patching to reduce risk and address the vulnerability. Show less

Engineer, Network Operations

• Jun 2018 - May 2022

 Configure, Maintain, Monitor connectivity [gre/ipsec, ipsec] between MNO, Different BANK, Third Party organization as per business needs.  Ensuring network up-time using 2000+ nodes capacity SolarWinds, Cacti, Smokeping, OPENNMS monitoring server. Manage 1500+ Wi-Fi users using Cisco WLC 5508 controller with 2802i, 2700 series AP setup. Manage 24 regional offices alongside DC, DR, and 2 satellite offices. Regular router, switch, controller device OS upgradation for patching known vulnerability and bug fixing Configure and maintain user VPN connectivity using Cisco Anyconnect and RSA server. Mange and ensuring user’s appropriate access using proxy server like BLUECOAT, WSA, IPFIRE Configure and maintain DHCP, DNS server. Ensuring DNS Sec using Cisco Umbrella.  Maintain periodical backup. Perform PAT/UAT/IET/others testing for network and server equipment Maintenance of technical documentation of processes and procedures used throughout normal operations. Show less

System Engineer

• Aug 2017 - Jun 2018

InterCloud Limited (www.intercloud.com.bd) is one of the leading ISP and IPTSP Operators in Bangladesh. It is a concern of Novo Group and sister concern of NovoTel (IGW), NovoCom (ITC, IIG), NovoNIX (NIX), BanglaICX (ICX), NovoAir (Domestic and International Jet Airline Carrier), TuSuKa (Garments and Manufacturing).  Configure multiple vendor router, switch, and firewall (Fortinet).  Configure and monitor internet and data services.  Designing and implementing customer's network.  Manage devices provided by the InterCloud Ltd.  Planning, design, R&D new client connectivity.  Manage sop and other documentation.  Network Security, QoS and Firewall management. Show less

Jr. Network Engineer

• Jan 2017 - Aug 2017

Telnet Communication Limited (TCL) offers a unique approach to businesses and organizations for enhancing their communication technology while lowering their expenses. With this new approach, clients can achieve greater control over the enterprise wide communication through a single point of responsibility for all of their communication needs. Telnet presents its clients with a full range of connectivity choices through its robust nation-wide network backbone: it offers STM-1, E1, SDH, FTTX connectivity, it also leases dark fibers that run through almost every part of Dhaka city, and to ensure capacity redundancy, it uses fiber cable, radio wave and satellite technology. • Network Monitoring. • Commissioning new connection • Setup new LAN, Wi-Fi, Access Point and VPN. • End user network support and troubleshooting. • Various Networking Device configuration like Mikrotik, Netgear, Zyxel, Cisco – router, switch. Show less