BALAJI RAJAN
Coimbatore
Summary
Dynamic and motivated L2 Network Engineer with 3.5 years of experience in enterprise network administration. Skilled in troubleshooting, switch replacement, and Cisco DNAC setup, with growing expertise in Python scripting, Ansible, and Netmiko for network automation. Collaborative problem-solver with strong planning skills, passionate about optimization, automation, and emerging technologies.
Overview
5
5
years of professional experience
1
1
Certification
Work History
Network Administrator
Tata Consultancy Services
Chennai
05.2021 - Current
- Managed and maintained network infrastructure across 35+ sites, consistently achieving 99.9% uptime.
- Configured and troubleshot network devices and services, significantly reducing downtime and improving reliability.
- Partnered with cross-functional teams to design and implement network solutions, boosting overall system performance.
- Documented procedures and delivered training sessions, enhancing team knowledge and operational efficiency.
- Installed, configured, and maintained LAN hardware/software including servers, PCs, and printers.
- Customized and managed firewalls and security devices to safeguard against internal and external threats.
- Monitored and evaluated new releases and models to optimize system performance.
- Automated routine network maintenance tasks, increasing efficiency, accuracy, and reducing manual effort.
Education
Bachelor of Engineering - Electrical and Electronics
Karpagam College of Engineering (Autonomous)
Coimbatore06.2021
HSC, Class XII -
Mani Higher Secondary School
Coimbatore04.2017
SSC, Class X -
Mani Higher Secondary School
Coimbatore03.2015
Skills
- Cisco DNA Center
- Cisco ISE
- Infoblox DDI
- Open Systems SD-WAN
- Cisco Meraki
- Cisco WLC
- VLAN and IP routing
- Palo Alto firewall
- VPN technologies [Zscaler and Zero Trust PA]
- Network automation
- Python Scripting
- Ansible
- Java
Certification
- CCNP ENCOR Certification
- Advanced Java Programming, Ebox Amphisoft Solutions, 2020-06-01
Languages
Tamil
Proficient
C2
English
Advanced
C1
Kannada
Intermediate
B1
Japanese
Elementary
A2
Interests
- Technology Exploration – staying updated on emerging tools in cloud, DevOps, and network automation
- Travel & Scenic Drives – exploring hill stations and nature destinations for relaxation and inspiration
- Fitness & Outdoor Activities
Timeline
Network Administrator
Tata Consultancy Services
05.2021 - Current
Bachelor of Engineering - Electrical and Electronics
Karpagam College of Engineering (Autonomous)
HSC, Class XII -
Mani Higher Secondary School
SSC, Class X -
Mani Higher Secondary School