Summary
Overview
Work History
Education
Skills
Internship
Timeline
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Abhilash Kar

Hyderabad

Summary

Dynamic Senior Software Engineer with a track record of resolving critical VoLTE and RCS challenges. Skilled in coordinating cross-functional teams and documenting processes to minimize MTTR. Expertise in utilizing tools like Wireshark and Docker to optimize telecom applications.

Overview

4
4
years of professional experience

Work History

Senior Software Engineer(IMS RCS)

HCLTech Limited (Google Client)
Hyderabad
07.2024 - Current
  • Owned troubleshooting for Google Messages RCS across ACS, P-CSCF, S-CSCF, and CIS DB services.
  • Investigated eSIM/IMS registration issues with MVNO partners using Analog, SiGma, and Android reports.
  • Analyzed NNI/UNI logs to triage P0 outages; coordinated war rooms to restore services within SLAs.
  • Validated complex scenarios involving Apple iRCS, Samsung satellite connectivity, T-Mobile, and Skylo.
  • Documented findings and authored runbooks to minimize mean time to resolution (MTTR).

Assistant Manager (Applications)

Reliance Jio Infocomm Limited
Mumbai
07.2021 - 07.2024
  • Troubleshot 4G/5G core and IMS issues impacting VoIP/VoLTE/RCS subscribers; performed RCA using Wireshark, SIP traces, and IMAS logs.
  • Worked across LTE core nodes: eNB, MME, SGW/PGW (SAE- GW), HSS, PCRF; supported configuration changes to improve attach/call success.
  • Operated telecom applications in Dockerized environments for scalability and reliability (lab and production- like).
  • Monitored signaling/media KPIs with Netscout (ISA, IPI, nG1, nBA, PFS) to isolate anomalies and performance degradation.
  • Provisioned IPs, eNodeBs, and handsets in IRIS to reduce unknown nodes and maintain KPI tracking integrity.

Education

B.Tech - Electrical Engineering

SOA University
Bhubaneswar

HSC -

Vikash Junior College
Bargarh

Matriculation -

Skills

  • IMS
  • SIP
  • VoLTE
  • RCS
  • MVNO interoperability
  • Wireshark
  • IRIS
  • Truecall
  • AWS
  • Docker
  • Linux
  • Android log analysis
  • Vertica
  • Shell scripting
  • Performance monitoring
  • Technical support escalations
  • Operational support
  • Strong debugging
  • Windows
  • Network troubleshooting
  • Telecom applications
  • Incident management
  • RCS implementation
  • Problem solving
  • Effective communication
  • Documentation skills
  • Analytical thinking

Internship

  • Hindalco Industries Limited

Timeline

Senior Software Engineer(IMS RCS)

HCLTech Limited (Google Client)
07.2024 - Current

Assistant Manager (Applications)

Reliance Jio Infocomm Limited
07.2021 - 07.2024

B.Tech - Electrical Engineering

SOA University

HSC -

Vikash Junior College

Matriculation -

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Abhilash Kar