Summary
Overview
Work History
Education
Skills
Awards
Timeline
Generic

CHANDAN KUMAR

Voice Network Designer, Collaboration Engineer
New Delhi

Summary

  • Over a decade of experience for managing and securing Cisco Unified Communications infrastructure and various VoIP technologies.
  • Expertise in managing Complex VoIP Environments with System Security, Reliability and Uninterrupted service delivery across multi-site network design.
  • Experienced in integrating VoIP System with Legacy Exchange using various analog, digital and IP based methods to enhance organization existing capability.
  • Hands on in Endpoint Security, Threat Detection and Incident Response.



Overview

14
14
years of professional experience
4034
4034
years of post-secondary education
2
2
Languages

Work History

System Administrator, Windows Patch Management

Indian Air Force
08.2022 - Current
  • Achieved more than 85% compliance rate for endpoints.
  • Utilized SIEM tool to analyze security events and identify potential threats across the network.
  • Managed and maintained EDR Platform to monitor and respond to endpoint threats.
  • Performed Vulnerability Assessments and coordinated patch management efforts to mitigate risks.
  • Conducted regular audits of security infrastructure, identifying weaknesses and recommending improvements.
  • Installed important security and functionality patches to maintain optimal protections against intrusion and system reliability.

Escalation Engineer, Collaboration and VoIP Security

Indian Air Force
08.2016 - 08.2022
  • Cisco Unified Communication Manager Administration and Troubleshooting.
  • Hands-on experience in designing, implementing, and maintaining Cisco UC solutions to enhance organizational communication and collaboration capabilities.
  • Tasked to manage more than 25K VoIP Endpoints with seamless efficiency.
  • Streamlined Troubleshooting Processes by creating detailed diagnostic guides for common technical issues encountered in daily operations.
  • Successfully upgraded Cisco Unified Communications Manager (CUCM) from version 8.5 to version 12.0 without OEM Support.
  • Handled Level 3 Escalation Tickets for Collaboration and VoIP Security Solutions.
  • Experienced in Integration of VoIP infrastructure with Legacy Telephony System through Voice Gateway using E1/T1 and SIP capable legacy exchange through CUBE.
  • Led training sessions on new Voice Technologies, ensuring staff remained up-to-date on current trends in the field.
  • Conducted regular audits of voice systems to ensure compliance with organization standards and best practices, minimizing security risks.
  • Implemented Disaster Recovery Plan for critical voice infrastructure components, ensuring uninterrupted Voice Service.
  • Deployed and configured Cisco ISR 4331 voice gateways with SRST capabilities to guarantee business continuity during network outages.
  • Implemented Splunk-based monitoring systems for proactive alerting, log management, and real-time diagnostics to ensure operational excellence.

Technical Specialist, Collaboration

Indian Air Force
08.2011 - 08.2016
  • Started career in Network Operation Centre as an L1 Collaboration Engineer.
  • Deploying and configuring Cisco ISR 4331 voice gateways with SRST capabilities for guaranteed availability of Voice Service during network outages.
  • Enhanced Customer Satisfaction by efficiently addressing and resolving voice-related issues.
  • Proficiency in using Ticketing Systems (e.g. HP OpenView Service Desk and Service Manager).
  • Familiarization with Informacast (Singlewire) System.
  • Cisco Unified Attendant Console (CUAC) Configuration, Administration and Attendant Readiness Console (ARC) Administration.
  • Familiarity with network monitoring tools (e.g. HP Network Node Manager and Zabbix).

Education

B.E. - Electronics and Communication

The Institution of Engineers, India
Kolkata, India
11-2020

Dipoloma - Electronics

Indira Gandhi National Open University
New Delhi, India
08-2012

Skills

Voice Signaling Protocols (SIP, SCCP, MGCP, H323)

Awards

  • Appreciation by Station Commander, Indian Air Force, Mumbai
  • Certified SOC Analyst, EC Council

Timeline

System Administrator, Windows Patch Management

Indian Air Force
08.2022 - Current

Escalation Engineer, Collaboration and VoIP Security

Indian Air Force
08.2016 - 08.2022

Technical Specialist, Collaboration

Indian Air Force
08.2011 - 08.2016

B.E. - Electronics and Communication

The Institution of Engineers, India

Dipoloma - Electronics

Indira Gandhi National Open University

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CHANDAN KUMARVoice Network Designer, Collaboration Engineer