Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

Shreerang Nayak

Manager -System Integration/TSG -Packet core EPC/vEPC
Dombivli

Summary

Total 18 years of work experience in Telecommunication – Packet core -SI/TSG,CARE/SUS,NOC,RAN-BTS/BSC

Overview

18
18
years of professional experience
4
4
Certifications

Work History

Manager - System Integration (Core SI/TAC-2)

Samsung India Electronics Limited (SIEL) - Network Division
07.2017 - Current
  • TSG-L2: Providing support for Samsung Core Network nodes (EPC/vEPC), managing daily operational issues, network configuration, and bug fixes within Reliance Jio’s 4G network and interworking with 5G network.
  • Incident Management: Acting as a secondary escalation point for critical, service-impacting issues, ensuring rapid issue resolution and optimal network performance.
  • System Integration & Log Validation: Led system integration and log validation processes for both legacy and virtualized nodes (MME, SAEGW, vMME, vGW-C, vGW-U) deployed across PAN India.
  • Network Testing & Validation: Conducted System Validation, Network Integration Testing (NIT), and Acceptance Test Procedures (ATPs) to ensure smooth deployment and integration of core network components.
  • Root Cause Analysis: Collaborated with R&D and engineering teams to identify root causes through in-depth troubleshooting and log analysis, leading to improved network stability.
  • Cloud Management System (CMS) Support: Supported CMS upgrades for key components such as NFVO, VNFM, PIM, and OSC.
  • Documentation & Design: Contributed to the development of Low-Level Designs (LLD) and Office Data Documents (ODD) to assist with system deployment and comprehensive technical documentation.
  • Level-2 Support (BTSP): Delivered Level-2 support for configuration, hardware issues, and network operations through the BTSP ticketing system, ensuring timely resolution of network-related challenges.

Specialist - Packet Core (CARE / SUS / CM / PCRF)

Nokia Solutions and Networks (NSN - GDC), Chennai
01.2014 - 06.2017
  • CARE Case Management (MME-SGSN, RESOLVE Tool): Managed technical support cases for MME-SGSN systems, using the RESOLVE tool to ensure prompt and effective troubleshooting for global operators.
  • Software Upgrades & Patch Management: Led full-cycle software upgrades and patch installations for clients like T-Mobile, Starhub, Telkomcel, Mobifone, and Docomo, delivering zero-downtime transitions and maintaining high network stability.
  • Tools & Automation (HIT Tool): Automated script creation and deployment using the HIT Tool to streamline upgrade processes, reduce manual errors, and improve efficiency.
  • Change Management & Event Execution (MS-Bharti): Coordinated configuration updates and planned network events following strict change management practices, minimizing impact and ensuring compliance.
  • Network Configuration & Optimization: Served as the primary point of contact for network configuration issues, consistently meeting SLA targets. Leveraged KPI analysis through Traffica Reporting Suite to identify performance bottlenecks and drive system improvements.
  • Policy & Charging Systems (SAPC, PCRF, SPA - Vodafone India): Delivered operational support and policy configuration for Vodafone India, managing updates to service plans and user rules through detailed Methods of Procedure (MOPs).

Sr. Engineer – L1 PaCo & Rectification

Alcatel-Lucent Managed Solutions Pvt. Ltd (RCOM - NNOC)
06.2010 - 01.2014
  • Handled L1 fault tickets for Packet Core and switch nodes.
  • Managed fault analysis across Cisco, Lucent, Huawei, ZTE, Ericsson platforms.
  • Performed daily health checks on 5ESS, MSOFTX, CSOFTX systems.
  • Supported network teams to maintain uptime and SLA compliance.
  • Worked with GGSN, ASR5000, and core switches across vendors.
  • Coordinated with Circle and TEC teams for timely issue resolution.

BSS Field Engineer

Kelly Services Pvt Ltd (Nokia off-roll - Bharti Airtel)
11.2007 - 06.2010
  • Handled BSS O&M for 250+ cell sites and 3 BSCs in Mumbai.
  • Performed site looping using Metro Hub.
  • Maintained transmission systems: NEC, TEJAS, Siemens.
  • Supervised corrective maintenance and reported to NOC.
  • Managed tools, spares, and test equipment on-site.
  • Executed installation, integration, and commissioning of Nokia BTS (Ultra, Mini, Metro, Flexi).
  • Maintained Nokia BSC 3i and planned site rehoming.
  • Conducted acceptance tests (calls, handovers, VSWR, alarms).

Integration & Commission Engineer

Global Innovate Source (GIS-GTL)
07.2007 - 11.2007
  • Conducted end-to-end integration of Nokia Ultra BTS.
  • Commissioned and aligned NEC and Tejas microwave antennas.
  • Handled VSWR rectification and site handovers.

Education

Bachelor of Technology - Telecommunications

Karnataka State Open University
Mysore, India
04.2001 -

Diploma - Electrical, Electronics And Communications Engineering

S.R.V.Rural Politechnic Gudelgudd
Bagalkot, India
04.2001 -

Skills

  • Cloud and NFV: Red-Hat Open Stack, Kubernetes, Samsung CMS
  • Telco Technology: Nokia -Radio network /Packet core-GPRS/3G, Samsung 4G, PCRF
  • Mobile Core Protocols: GTP, SCTP, DIAMETER, RADIUS, IPv4v6, OSPF, PFCP
  • Tools & Probes: Wireshark, BMC Remedy, Resolve, NetScout, BTSP

Certification

CCNA Training and certification CISCO ID: CSC013011507

Timeline

Manager - System Integration (Core SI/TAC-2)

Samsung India Electronics Limited (SIEL) - Network Division
07.2017 - Current

Specialist - Packet Core (CARE / SUS / CM / PCRF)

Nokia Solutions and Networks (NSN - GDC), Chennai
01.2014 - 06.2017

Sr. Engineer – L1 PaCo & Rectification

Alcatel-Lucent Managed Solutions Pvt. Ltd (RCOM - NNOC)
06.2010 - 01.2014

BSS Field Engineer

Kelly Services Pvt Ltd (Nokia off-roll - Bharti Airtel)
11.2007 - 06.2010

Integration & Commission Engineer

Global Innovate Source (GIS-GTL)
07.2007 - 11.2007

Bachelor of Technology - Telecommunications

Karnataka State Open University
04.2001 -

Diploma - Electrical, Electronics And Communications Engineering

S.R.V.Rural Politechnic Gudelgudd
04.2001 -

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Shreerang NayakManager -System Integration/TSG -Packet core EPC/vEPC