Sheik Nisar
Chennai
Summary
Adept at enhancing network stability and efficiency, my tenure at Nobl Q Pvt Ltd showcased my expertise in troubleshooting LAN/WAN and Cisco systems, alongside a profound ability in IPAM and cloud technologies. My collaborative skills, evidenced by effective vendor coordination and knowledge sharing, significantly improved system reliability.
Overview
9
9
years of professional experience
1
1
Certification
Work History
Shift Leader
Nobl Q Pvt Ltd
Chennai
04.2024 - Current
- Troubleshoot and maintain LAN/WAN systems systematically, addressing network outages to improve the stability of ISP and MPLS links.
- Perform remote service checks by reviewing service start types and thoroughly analyzing both internal and external applications hosted on servers to identify potential bugs or issues.
- Conduct impact analyses to evaluate how application, server, and network issues affect system performance and business operations.
- Develop and update Knowledge Base (KB) documentation to support change management processes and facilitate efficient troubleshooting.
- Maintain regular communication with engineers, architects, team leads, and hardware/software vendors to coordinate and resolve incidents in a timely manner.
- Create and manage CNAME and DNS host records in both internal and external DNS servers, using tools such as Efficient IP and AWS Route 53.
- Collaborate with technical teams when a major incident is initiated.
Senior IT Analyst
Jeevan Technologies India Pvt Ltd
Chennai
01.2023 - 03.2024
- Troubleshoot and maintain LAN/WAN systems systematically, addressing network outages to improve the stability of ISP and MPLS links.
- Perform remote service checks by reviewing service start types and thoroughly analyzing both internal and external applications hosted on servers to identify potential bugs or issues.
- Conduct impact analyses to evaluate how application, server, and network issues affect system performance and business operations.
- Develop and update Knowledge Base (KB) documentation to support change management processes and facilitate efficient troubleshooting.
- Maintain regular communication with engineers, architects, team leads, and hardware/software vendors to coordinate and resolve incidents in a timely manner.
- Create and manage CNAME and DNS host records in both internal and external DNS servers, using tools such as Efficient IP and AWS Route 53.
- Collaborate with technical teams when a major incident is initiated.
Senior Network Administrator
Teamlease Digital Pvt Ltd
Chennai
09.2021 - 12.2022
- Managing and troubleshooting LAN, WAN, Internet, switching, routing, applications, and coordinating with vendors and ISPs.
- Maintaining a strong grasp of ITIL principles and processes.
- Handling user tickets via ServiceNow for various types of issues.
- Creating master, forward, and reverse DNS zones in IPNS.
- Coordinating with TAC teams such as Cisco for troubleshooting network issues.
- Will create and maintain KB process documentation for change management planning and troubleshooting purposes.
- Communicating frequently with engineers, architects, team leads, and hardware/software vendors during incident resolution.
- Supported hardware refresh activities for Solid servers across several locations.
Senior Network Engineer
Newt global India Pvt.ltd
Chennai
06.2021 - 07.2021
- No projects were assigned during that time period due to COVID-related issues.
Network Engineer
Norwin Technologies
Chennai
01.2020 - 04.2021
- Monitoring Network WAN Uplinks, Bandwidth, and Utilization
- Configuration and Troubleshooting of Cisco routers (models 1800, 2600, 2800, 3640, and 7940)
- Configuration and Troubleshooting of Cisco Catalyst switches (models 2950 and 3750 Series)
- Managing and Troubleshooting LAN, WAN, Internet, switching, routing, applications, vendor, and ISP coordination
- Monitoring Cisco/Meraki Enterprise Cloud-Based Devices: MX84, MS220, and MR24
- Managed a critical, business-impact, large-scale network on a 24x7x365 basis.
Network Engineer
Emergys Software Pvt
Chennai
08.2019 - 12.2019
- Monitoring Network WAN Uplinks, Bandwidth, and Utilization
- Configuration and Troubleshooting of Cisco routers (models 1800, 2600, 2800, 3640, and 7940)
- Configuration and Troubleshooting of Cisco Catalyst switches (models 2950 and 3750 Series)
- Managing and Troubleshooting LAN, WAN, Internet, switching, routing, applications, vendor, and ISP coordination
- Monitoring Cisco/Meraki Enterprise Cloud-Based Devices: MX84, MS220, and MR24
- Managed a critical, business-impact, large-scale network on a 24x7x365 basis
Network Engineer
3I INFOTECH Limited
Chennai
12.2016 - 08.2019
- Managing the Core Network of Iffco DC and internal DC, for the maintenance of the IT infrastructure, Involved in Configuring, Managing Router, Switches Devices
- Providing L2 support to MS network and handled around 800 devices including Cisco 3900, Cisco 3800, Cisco 2900, Cisco 4500 etc
- Performed Multiple tasks including IOS up gradation, decommissioning, port establishment, Power down activity
- Maintaining backup of all devices and sending reports to concern superiors
- Coordinating with vendor if required
- Timely follow ups with customers on critical cases
- Security event monitoring of alerts originating from Security Information Management
Network Engineer
Trimax IT Infrastructure and services ltd
Bangalore
07.2015 - 12.2016
- Worked in Canara Bank Head office (NOC), Bangalore for the maintenance of the IT infrastructure, Involved in Configuring, Router, Switch Devices
- Canara Bank having 5600 Branches, 5000 ATM locations all over India and 12 External Network
- Implementing & managing of Lease Lines, ISDN connectivity
- Installation and configuration of Various Modems include Gateway, Tellabs, RAD ASM etc
- Installing, Configuring & troubleshooting operating system and Software applications
- Liaison with BSNL for implementation their WAN Links
- Co-Ordination with ISP to bring up the MPLS, Leased lines & ISDN lines
- Timely co-ordination for problem resolution with other networks/application teams if required
- Expertise Wan Projects including Troubleshooting and Maintenance where Lease line (Channelized E1, 2 Mbps, 512K, 256K, 128K & 64 Kbps) and ISDN (PRI / BRI) lines are involved
- Planning and implementing for the backup connectivity and redundant backup connectivity if main connectivity fails
Education
BE - Electronics and communication Engineering
Annamalai University
Chidambaram05.2012
+12 - Computer & Maths
Goverment Boys Higher secondary School
Thiyagadurgam04.2008
10th - State Board
Goverment Boys Higher secondary School
Thiyagadurgam03.2007
Skills
Routing skills: BGP, OSPF, IGRP
Switching skills: VLAN, STP, HSRP,VTP,VRRP ,Port Channel and Port security
Wireless Technologies: Managing Cisco WLC and Access point
Experience working with an ITIL based ticketing system tool – ServiceNow , Tat par and Manage engine
IPAM (IP Address management)
Network management based application experience (Cisco Prime, Cisco Meraki, Logic Monitor, Oracle Dyn)
Skills on - DNS , DHCP , HSRP , VRRP, Cisco Jabber and CCX
Cloud Skills - Knowledge on AWS Cloud
Certification
Cisco Certified Network Associate, CSCO12924970
Languages
Tamil
First Language
English
Proficient (C2)
C2
Hindi
Advanced (C1)
C1
Urdu
Upper Intermediate (B2)
B2
Timeline
Shift Leader
Nobl Q Pvt Ltd
04.2024 - Current
Senior IT Analyst
Jeevan Technologies India Pvt Ltd
01.2023 - 03.2024
Senior Network Administrator
Teamlease Digital Pvt Ltd
09.2021 - 12.2022
Senior Network Engineer
Newt global India Pvt.ltd
06.2021 - 07.2021
Network Engineer
Norwin Technologies
01.2020 - 04.2021
Network Engineer
Emergys Software Pvt
08.2019 - 12.2019
Network Engineer
3I INFOTECH Limited
12.2016 - 08.2019
Network Engineer
Trimax IT Infrastructure and services ltd
07.2015 - 12.2016
BE - Electronics and communication Engineering
Annamalai University
+12 - Computer & Maths
Goverment Boys Higher secondary School
10th - State Board
Goverment Boys Higher secondary School
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