Subrata Sarker

Experience

• 

  Opex Group

  Mar 2011 - Mar 2012

  Assistant Network Engineer

  DUTIES & RESPONSIBILITIES:• Install, Configure & Administration Windows 2003 Server DNS, DHCP. • Install and configure Linux Server. • Install, configure and maintain network devices like Cisco router 2800,Cisco switch 2960,D-link L3 Modular switch,24 port layer 2 switches, Radio link(Motorola Canopy), IP-Camera/CC Camera, Switch Rack, Patch Panel. • Install configure Wireless access point and LAN card. • Installs, Configures and Troubleshoot new hardware/software. • Communicate Third point vendor for hardware purchase and additional support. • Configuring Outlook Express, Microsoft Office Outlook, Eudora, Mozilla thunderbird, and any types of mail client. • Works with venders to troubleshoot and resolve issues. • Monitors domain controller, applications servers, computer security, bandwidth and network. Show less

• 

  IT Connect Ltd.

  Apr 2012 - Mar 2015

  Senior Executive Network Operations Center(NOC)

  DUTIES & RESPONSIBILITIES:• Technical lead duties and management of technical projects. • Designing and implementing customers’ network infrastructure. • Configuring and implementing Remote Access Solution: Site-to-site VPN, Remote Access VPN.• Configuring VLANs, InterVlan Routing, VTP, EtherChannel, HSRP, NAT. • Designing and implementing wireless architectures (Wavion APs). • Hardening Cisco devices – Implementing Cisco ASA Firewall, AAA. • Implementing traffic filters using Standard and Extended access-lists, Distribute-Lists, and Route Maps. • Building and maintaining Visio documentations for Clients. • Configuring , Maintenance, update and troubleshooting TCP/IP, FTP, TFTP, DNS, DHCP, MAIL Server (SMTP, POP3), Syslog, SNTP, SNMP, Proxy and Web Server in Linux & Windows platform. • Installing and maintaining virtualization technologies - VMware, Virtualbox. • Designing, implementing and Troubleshooting Fiber Transmission Network. • Coach more junior members of staff. Show less

• 

  Summit Communications Ltd

  Mar 2015 - Sept 2021

  DUTIES & RESPONSIBILITIES:• Configuration of all SDH MUX to manage ITC Networks.• Configuration of al routing and switching protocols to manage ITC networks.• Configuration and management of network devices for ITC operations.• Checking day to day device health and environment condition.• Monitor & supervise client service quality.• Communicating with upstream providers and customers to solve problem.• Analysis of technical problem and solve accordingly.• Maintaining database for device inventory, subscription statistics and all other related to ITC operation.• Trouble shoot of network related information.• Ensure regular backup of devices configurations and files. Show less

  • Deputy Manager

    Apr 2019 - Sept 2021

  • Assistant Engineer, ITC

    Mar 2015 - Apr 2019
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  Huawei

  Sept 2021 - Jan 2023

  Datacommunication Engineer

  • Maintenance of Mobile Operator’s IP MBPN & IBG network• Device Version & patch upgradation• Configuring Router & Switches• Troubleshooting of various types of issues as Routing, PBR, MPLS, QoS etc.• Contingency & Topology completed for Mobile Operators.• Health Check of devices and create Risks & Mitigation accordingly• Ensure network safety & error free configuration• Handel any types of Network risks and checks precaution in advance.• Analysis of Network utilization and share the findings with customer.• Maintaining database for device inventory • Configuration plans and convert configuration from vendor to vendors as Cisco to Huawei, Juniper to Huawei. Show less

• 

  Link3 Technologies Limited

  Feb 2023 - now

  Manager, Next Generation Network Center (NGNC), Technology

  • Core Network Design, Planning and implementation.• Maintenance of Bank’s Enterprise Internet and Data Connectivity.• Working with CDN providers. New CDN testing and implementation in system• Working with Upstream providers for IPT & IPLC Connectivity. • Strategy & Planning-Ability to define, implement and enforcement the organization’s Configuration Management and Change Management Policies and Practices.• Make Budget and Purchasing recommendations and capacity planning in order to provide a steady, cost-effective infrastructure to meet the availability demands of the organization.• Team resource Management-Hire, development and retain highly responsible and customer focused engineers to ensure the effective operation of the NOC• Manage tools, system and procedures to ensure effective management of the issues and customer satisfaction.• Manage as needed hands-on technical support work related to the overall health and maintenance of the organization’s multiple environments.• Device Version & patch upgradation• Troubleshooting of various types of issues as Routing, EoIP, L2 & L3 VPN , PBR, MPLS, QoS etc. Show less