Keerthana S
Chennai
Summary
Wireless Network Engineer with proven expertise in network design and optimization at TCS. Proficient in troubleshooting and enhancing network performance utilizing Cisco and Aruba technologies. Collaborated with cross-functional teams to deliver tailored solutions, ensuring robust connectivity and high client satisfaction. Achievements include significant improvements in wireless network reliability and efficiency.
Overview
3
3
years of professional experience
Work History
Wireless Network Engineer
TCS
Chennai
08.2022 - Current
- Configured and optimized wireless networks across diverse client environments.
- Conducted site surveys to assess coverage and connectivity requirements.
- Collaborated with teams to implement tailored network solutions.
- Developed technical documentation for configurations and procedures.
- Provided training and support on wireless technologies and best practices.
- Assisted in deployment of hardware and software for network upgrades.
- Configured and maintained Cisco WLC 9800 series with HA and SSO for enterprise-grade wireless redundancy and reliability.
- Deployed and managed Cisco APs (9166, 9200), Arista Sensors (230 and 330), and Juniper Mist Edge and APs in large-scale corporate environments.
- Performed WIPS policy creations and monitoring to prevent wireless threats and mitigate malicious activity.
- Managed firmware upgrades for Juniper APs, Cisco WLC IOS, and Arista Sensors to ensure up-to-date security and performance.
- Designed and created WLANs with various authentication modes (802.1x, PSK, MAC Filtering, Web Auth), and integrated with ISE and ACS servers for AAA services.
- Troubleshot complex network issues across wireless and wired domains using Cisco DNA Center, TGIM, and telemetry data.
- Worked on RFC and ticket resolution processes for wireless network incidents and service requests, achieving rapid resolution turnaround.
- Conducted RF planning using Ekahau for optimized network performance.
- Built network diagrams and detailed project documentation using Visio, ensuring clear deployment processes and issue reporting.
- Collaborated on SDA site configurations, telemetry collection, and policy pushing via Cisco DNA Center.
- Executed security hardening tasks for WLC, sensors, and APs, aligning with compliance requirements.
- Supported SD-WAN migration activities, including S2S and P2P configurations across international sites.
- Raised RMA cases for hardware replacements, and TAC escalation for critical outages.
- Worked with Guest Wireless Services (Anchor WLC), local breakout, air-gapped environments, and dedicated/shared wireless deployments.
- Managed compliance aspects: GPS device allocation, password rotations, ACLs, Smart Licenses, and DNS configurations.
- Implemented security measures including firewalls, encryption, and authentication protocols.
- Monitored network performance to promptly resolve connectivity issues.
Education
Bachelor of Engineering - Electrical and Electronics Engineering
SRM Valliammai Engineering College
Chennai06-2022
Skills
- Wireless network configuration and monitoring
- Network troubleshooting and support
- Technical documentation and project management
- Wireless network design and upgrades
- RF engineering and standards
- Wireless site surveys and integration
- Wi-Fi technologies expertise
- Hands-on experience with Cisco 9800, Air OS WLCs, and DNAC
- Hands-on experience in Juniper networking
- Knowledge of Cisco switches
- Hands-on experience with Aruba WLCs
- Hands-on experience with Arista Networks
- Proficient in Microsoft Office and Visio
- Hands-on experience with Ekahau Pro applications
- Knowledge of VMware and Hyper-V servers
- Familiarity with Windows and Linux-based DHCP and DNS servers
Core Competencies
- Problem Solving
- Teamwork
- Critical Thinking
- High Availability
- Documentation
- Customer Relationship
- Troubleshooting And Configuration
Personal Information
Languages
Tamil
First Language
English
Proficient (C2)
C2
Timeline
Wireless Network Engineer
TCS
08.2022 - Current
Bachelor of Engineering - Electrical and Electronics Engineering
SRM Valliammai Engineering College
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