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

Technical Support

Network Systems Installation

Hardware and Software Monitoring

Network Security Management

IP Addressing and Subnetting

Network Repairs and Maintenance

Customer Support

Basic Firewall Management

Network Performance Monitoring

Network Troubleshooting

Network Security

Disaster Recovery

Load Balancing

Network Architecture

Wireless Networking

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