Summary
Overview
Work History
Education
Skills
Timeline
Hi, I’m

SUNIL VARMA

Network Administrator
Hyderabad

Summary

Dedicated and detail-oriented IT professional with extensive experience in leading a support team and providing network support to Broadband and LL clients. Adept at managing and monitoring LAN/WAN network services, troubleshooting network issues, and ensuring seamless connectivity. Seeking a challenging position to leverage my technical skills and leadership capabilities in a dynamic environment.

Overview

9
years of professional experience
5
years of post-secondary education
3
Languages

Work History

Cityonline Services Ltd

Network Administrator
03.2019 - Current

Job overview

  • Maintained network hardware and software and monitored network to support network availability to end users.
  • Identified and immediately resolved issues with network devices.
  • Performed day-to-day LAN and WAN administration, maintenance, and support.
  • Recommended development of plans for systems development and operations.
  • Managed the installation and maintenance of all IT infrastructure, including servers, routers, switches, and firewalls.
  • Developed and implemented network-wide security policies and procedures to ensure the security of the network.
  • Monitored network performance and maintained system availability for users.
  • Configured and maintained network hardware, including routers, switches, and firewalls.
  • Troubleshot network issues and resolved them in a timely manner.
  • Implemented and maintained software applications, such as Cisco IOS, Windows Server, and Linux.
  • Installed and configured wireless networks and their associated security measures.
  • Developed and implemented backup and disaster recovery plans.
  • Maintained network documentation such as diagrams, configurations, and procedures.
  • Developed and maintained relationships with vendors and suppliers.
  • Routing Protocols: Static, EIGRP, RIP, OSPF
  • Switching Technologies: VLANs, STP, VTP, Port-Security, Inter-VLAN Routing
  • OSI Layer Model, TCP/IP Protocols
  • Router IP Addressing, Subnetting
  • Network Address Translation (NAT)
  • Wireless LAN Configuration (802.11 b/g/n)
  • Security Mechanisms: WPA2 Personal/Enterprise, Radius Server, Countermeasures
  • Cisco Switches (3550, 3750, 4948, Nexus Series), Mikrotik Routers, Wireless Routers, Loco Nano Bridges
  • NMS Tools: Dude, Nagios
  • VOIP: Asterisk Server PBX, VOIP Monitoring, Soft Phones (X-lite Tool)

VOIP Specialist

  • Administered Asterisk Server PBX and monitored VOIP systems.
  • Configured Soft Phones using X-lite Tool and resolved basic VOIP issues.
  • Possessed a strong understanding of VOIP concepts.

Team Lead - Network Support

  • Lead a team of 8 members in providing network support to Broadband and LL clients.
  • Generated and managed Trouble Tickets (TT) for client issues and ensured timely resolution.
  • Gathered and submitted DOT data to the Government in compliance with regulatory requirements.
  • Monitored network using NMS tools such as Dude and Nagios and observium
  • Configured VLANs, L3, L2 Switches, and Mikrotik routers.
  • Assigned routing to new clients and implemented client network configurations.
  • Conducted connectivity checks from NOC to client points.
  • Managed and monitored LAN/WAN network services.
  • Provided detailed documentation of network problems and resolutions for future reference.
  • Identified and immediately resolved issues with network devices
  • Maintained network hardware and software and monitored network to support network availability to end users
  • Performed day-to-day LAN and WAN administration, maintenance, and support
  • Authored documentation for system configuration and troubleshooting
  • Introduced management tools to create and manage virtual server computing environment
  • Monitored system performance and responded to alerts
  • Managed computer operation scheduling, backup, storage and retrieval functions
  • Verified continuity of computer and telephone system services for users
  • Installed, configured and supported local area network (LAN), wide area network (WAN) and Internet system

Cityonline Services Ltd

Network Engineer
02.2017 - 02.2019

Job overview

  • Provided complete end-to-end engineering and installation of route-based IP network solutions.
  • Performed troubleshooting for Cisco,Huawei and packet analysis.
  • Troubleshot complex multi-vendor network service provider issues.
  • Provided network support services for devices such as hubs, bridges, routers, and other hardware.
  • Configured and maintained network hardware, including routers, switches, and firewalls.
  • Troubleshoot network issues and resolved them promptly.
  • Implemented and maintained software applications, such as Cisco IOS, Windows Server, and Linux.
  • Handled customer inquiries via phone, email, and live chat professionally and courteously.
  • Assisted in the administration and maintenance of an extensive company-wide wide area network (WAN) with multiple locations.
  • Successfully designed, implemented, and maintained a secure local area network (LAN) with over 200 nodes.
  • Developed and managed network infrastructure, including routers, switches, firewalls, and Wi-Fi.
  • Installed, configured, and maintained Cisco routers, switches, and other networking devices.
  • Developed and implemented network security policies and procedures.
  • Monitored network performance and provided technical support to users.
  • Troubleshoot network issues and resolve hardware, software, and system problems.
  • Installed and configured network services, such as DHCP, DNS, and Active Directory.
  • Conducted regular network assessments to identify weaknesses and vulnerabilities.
  • Planned and implemented the migration of servers and services to the cloud.
  • Implemented routing protocols including Static, EIGRP, RIP, and OSPF.
  • Demonstrated expertise in switching technologies such as VLANs, STP, VTP, Port-Security, and Inter-VLAN routing.
  • Possessed a detailed understanding of the OSI layer model and TCP/IP protocols.
  • Configured wireless LANs (802.11 b/g/n) and set up P2P and P2MP links using Grid stations, Loco Nano bridges.
  • Administered Radius Manager for service policy, user creation, and traffic tracking.
  • Conducted troubleshooting on-site and escalated issues when required.
  • Implemented routing protocols including Static, EIGRP, RIP, and OSPF.
  • Demonstrated expertise in switching technologies such as VLANs, STP, VTP, Port-Security, and Inter-VLAN routing.
  • Possessed a detailed understanding of the OSI layer model and TCP/IP protocols.
  • Configured wireless LANs (802.11 b/g/n) and set up P2P and P2MP links using Grid stations, Loco Nano bridges.
  • Administered Radius Manager for service policy, user creation, and traffic tracking.
  • Conducted troubleshooting on-site and escalated issues when required.

Cityonline Services Ltd

Network Support Engineer
02.2015 - 02.2017

Job overview

  • Diagnosed network problems involving combination of hardware, software, power and communications issues.
  • Drafted post-mortem documentation analyzing instances of network system failures and detailing required repair and restoration efforts.
  • Oversaw junior-level engineers, directing work orders while monitoring performance metrics and consumer feedback.
  • Monitored network performance and identified opportunities for improvement.
  • Provided technical support to users with network related problems.
  • Troubleshot and solved complex network issues efficiently and effectively.
  • Configured and maintained routers and switches to ensure optimal performance.
  • Developed and implemented security protocols to ensure the safety and integrity of the network.
  • Resolved network issues for all users on the network in a timely, efficient manner.
  • Created and maintained detailed documentation of all network systems for internal tracking and reference.
  • Successfully implemented a new network infrastructure and maintained its stability at a large-scale enterprise.

Education

TKR College of Engineering And Technology
Hyderabad

Diploma from Electronics And Communication Engineering
04.2010 - 03.2014

Saraswathi Vidya Mandir High School
Hyderabad

High School Diploma
04.2006 - 06.2007

Skills

    Data Backups

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Timeline

Network Administrator

Cityonline Services Ltd
03.2019 - Current

Network Engineer

Cityonline Services Ltd
02.2017 - 02.2019

Network Support Engineer

Cityonline Services Ltd
02.2015 - 02.2017

TKR College of Engineering And Technology

Diploma from Electronics And Communication Engineering
04.2010 - 03.2014

Saraswathi Vidya Mandir High School

High School Diploma
04.2006 - 06.2007
SUNIL VARMANetwork Administrator