Vignesh Kumar R
Chennai
Summary
Dynamic Senior System Analyst with a proven track record at HCL Technologies, specializing in network security and vulnerability assessments. Expert in routing, switching, and providing exceptional technical support. Demonstrated leadership in designing robust security infrastructures, significantly enhancing network reliability and safety. Skilled in team coordination and problem-solving, ensuring optimal network performance and security.
Overview
11
11
years of professional experience
1
1
Certification
Work History
Senior System Analyst
HCL Technologies private limited
Chennai
03.2021 - Current
- Leading the 13-member team from the site, Chennai.
- Tool experience: Nessus Professional, Tenable Security Center.
- Switches: Cisco 9200 series (C9200CX-8UXG-2XH)
- Routers: Cisco 9500 Series.
- Firewall: Palo Alto 5400 series
- Lead the design, implementation, and management of comprehensive security solutions to protect the company's network infrastructure, and sensitive data from cyber threats.
- Implemented network security policies, including VLANs, ACLs, and access controls, to limit unauthorized access, and safeguard sensitive data.
- Monitor network traffic and security alerts using tools such as Splunk, Wireshark, and Nagios, ensuring a quick response to potential security incidents.
- Conduct regular risk assessments, vulnerability assessments, and penetration testing to identify weaknesses in systems, applications, and networks.
- Design, implement, and manage robust network infrastructures, ensuring high availability, reliability, and scalability across multiple locations.
- Performed live packet data capture with Wireshark to examine security flaws.
- Provide technical support and guidance to internal teams and end users, assisting with network setup, configurations, and troubleshooting.
Contract Trainer
HCL Technologies Private limited
Chennai
02.2020 - 03.2021
- Played same role as above, later converted from CT to FTE
Project Management Co-Ordinator
Velocis Systems private limited
Chennai
04.2016 - 01.2020
- Switching: Vlan, VTP, STP, RSTP, Ether channel, Trunking
- Routing: Static, OSPF, EIGRP
- Network Management: Whatsup gold, NetFlow analyzer
- Conversant with setting up and maintaining entire WAN/ LAN; core knowledge in hardware, analyzing network security needs
- Software / Hardware Installation and other services
- Configure the VSS core switches with dual mode
- Configured VPN, ACL and NAT in the Cisco ASA 5540 firewall to allow only authorized users to access the servers of the internal network
- Carrying out the Remote Server & Desktop Services Installations
- Managing user accounts & assigning access rights and permission to use different application and resources
- Overseeing installation of windows environments and application software under multi-platform environments, disk quota management & distributed file systems
- Performed IOS upgrades
- Client Site: Tamilnadu Secretariat
Field Network Engineer
Adecco India Private Limited
Chennai
01.2014 - 04.2016
- Network maintenance and monitoring LAN & WAN connectivity
- Hardware & software Installation and troubleshooting
- Service and maintenance the DSL connection throughout the Chennai
- Troubleshoot the various type of connectivity issue at client place
- Worked as a backend coordinator for 6 months
- Configure and troubleshoot the various DSL routers and Wi-Fi routers
- Delivered an exceptional level of service to each customer by listening to concerns and answering questions
- Client: Airtel Broadband Service
Education
Bachelor of Engineering - ECE
KVCET
Chengalpattu04.2013
Skills
- Vulnerability assessment and penetration testing
- Routing and switching
- Network Security
- Wireless networking
- Network monitoring and troubleshooting
- Hardware and Equipment Configuration
Certification
- CEHv12, Present, Completed the training, certification under process.
Accomplishments
- Recognized as a best employee among ERS group (650 Employees) twice the time and rewarded in Town-hall meeting. (2022 and2024)
- Transformed as a lead in 2022 from senior support engineer.
Hobbies and Interests
- Chit-chat with friends
- Spending time with family
Languages
- English
- Tamil
Languages
Tamil
First Language
Tamil
Proficient (C2)
C2
English
Proficient (C2)
C2
Timeline
Senior System Analyst
HCL Technologies private limited
03.2021 - Current
Contract Trainer
HCL Technologies Private limited
02.2020 - 03.2021
Project Management Co-Ordinator
Velocis Systems private limited
04.2016 - 01.2020
Field Network Engineer
Adecco India Private Limited
01.2014 - 04.2016
- CEHv12, Present, Completed the training, certification under process.
Bachelor of Engineering - ECE
KVCET
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