Raghavan S
No 2/56-1 Pattali Nagar, Thamaleri Muthur
Summary
Results-driven and detail-oriented Network Engineer with three years of hands-on experience in designing, implementing, and maintaining secure and scalable network infrastructures. Proficient in configuring routers, switches, firewalls, and VPNs across enterprise environments. Skilled in troubleshooting network issues, optimizing performance, and ensuring high availability and security of network systems. Adept at working with Cisco, Juniper, and Fortinet devices, with a solid understanding of networking protocols such as BGP, OSPF, EIGRP, and MPLS. Demonstrated ability to manage multiple projects and collaborate with cross-functional teams to support organizational goals. Holds CCNP certification, with a strong commitment to continuous learning and adapting to emerging technologies.
Overview
3
3
years of professional experience
1
1
Certification
Work History
Network Engineer
Tata Communication Transformation Service
Bangalore
08.2024 - Current
- Company Overview: A telecommunications service provider.
- MOP Preparation for Cisco NCS 540, ASR920, ASR9903, ASR903, and NCS55A2 routers for new node deployment and migration.
- Supporting 1G, 10G, and mobility patching with ISPs and configuring various equipment.
- Managing monitoring tools – NMS, Remedy) for network reporting.
- Creating migration and node insertion planning documents.
- Troubleshooting issues related to ISIS, BGP, MPLS, L2VPN, BFD, and VRF.
- Investigating network faults during migration from Huawei to Cisco NCS 540.
- Coordinating with teams to resolve IP-related network issues.
- Managing team to troubleshoot and handle daily activities.
- Providing remote support for on-field deployments.
- Working with virtualization technologies – VMware) using EVE–LAB.
- Monitoring network devices.
- Adding Cisco nodes in EPNM.
- Learning Palo Alto Technologies in EVE–LAB.
- Creating Automation CEN Tools for Networking, Including Base File Configuration, Ring Diagram Generation, and Neighbor Configuration.
- Managing Palo Alto Firewalls and creating policies.
- A telecommunications service provider.
Network Engineer
Raygain Technologies Private Ltd
Chennai
10.2023 - 05.2024
- Company Overview: An IT services company specializing in network solutions.
- Worked on LAN network using L2 and L3 switches, PF Sense software firewall, and DHCP server.
- Improved data collection efficiency by 25% by installing ODK software and maintaining server infrastructure.
- Provided day-to-day support in resolving client PC internet issues.
- Resolving Cat Cable Issues Using a LAN Tester.
- An IT services company specializing in network solutions.
Network Engineer L1
Teleindia Networks Private Ltd
Chennai
08.2022 - 10.2023
- Company Overview: A company providing networking solutions.
- MOP Preparation for Cisco NCS 540 and ASR920 routers for new node deployment.
- Supported 1G, 10G and mobility patching with ISP.
- Managed monitoring tools – NMS, Remedy) for network reporting.
- Created plans for migration and node insertion planning documents.
- Troubleshot issues in ISIS, BGP, MPLS, L2VPN, VRF.
- Coordinated for resolution of all IP-related issues.
- Managed team for troubleshooting and daily activities.
- Developed and Launched the DataSamudra Company Website Using Full-Stack Technologies.
- A company providing networking solutions.
Software Developer
Extrieve Technologies Pvt. Ltd
Bangalore
05.2022 - 07.2022
- Company Overview: A software development company.
- Increased efficiency by customized tools per customer specifications.
- Reduced ticket resolution time by 30% through efficient issue management.
- Developed responsive web applications.
- A software development company.
Education
Master of Computer Science -
Reva University
Bangalore, India05.2022
Bachelors of Mathematics -
Sri Vidya Mandir Arts And Science College
Tamilnadu, India05.2020
Skills
- Firewall management (Cisco ASA, Firepower)
- VPN implementation (IPsec, SSL, DMVPN)
- Network access control (Cisco ISE)
- AAA (TACACS, RADIUS)
- Security policy development and enforcement
- Cisco Secure Firewall and FMC configuration
- Incident response and threat mitigation
- Network monitoring and logging (Syslog, SNMP, NetFlow)
- Familiarity with Cisco TrustSec and Zero Trust principles
- Strong troubleshooting using Cisco CLI and tools like Wireshark
- VLANs, trunking, and inter-VLAN routing
- OSPF, EIGRP, and BGP (basic knowledge)
- NAT/PAT
- IP addressing and subnetting
- Troubleshooting using packet captures (Wireshark)
Certification
- Implementing and operating Cisco Security Core Technologies (SCOR)-CSCO14872059
Languages
- Tamil, Native
- English, Proficient
- Kannada, Proficient
Timeline
Network Engineer
Tata Communication Transformation Service
08.2024 - Current
Network Engineer
Raygain Technologies Private Ltd
10.2023 - 05.2024
Network Engineer L1
Teleindia Networks Private Ltd
08.2022 - 10.2023
Software Developer
Extrieve Technologies Pvt. Ltd
05.2022 - 07.2022
Master of Computer Science -
Reva University
Bachelors of Mathematics -
Sri Vidya Mandir Arts And Science College
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