Summary
Overview
Work History
Education
Skills
Personal Information
Languages
Certification
Internships
Personal Assets
Timeline
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Bhanu Prakash Reddy Nagarla

Bhanu Prakash Reddy Nagarla

Milan

Summary

Dedicated Mobile Software Protocol Test & Core Network/RAN Engineer with excellent technical, analytical and communication skills demonstrated by 6 years of experience working with various competitive mobile and telecom vendors and operators in the market. I always prove myself as a best professional and contribute to the growth of the organization possessing competent technical skills and stand in a position where organization and I am proud of. I am always energetic, enthusiastic, optimistic, eager to learn new skills and use a creative approach in problem solving.

Overview

9
9
years of professional experience
1
1
Certification

Work History

Connectivity and Network Engineer-4G/5G

Capgemini Italia
01.2023 - Current
  • Packet Core Connectivity Testing for Data Core team of clients Testing Centre/Lab-environment(4G CN of Vodafone project and 5G CN of Fastweb project).
  • Provide Integration support, Release Acceptances and Configurations, design integration test plans analysis, troubleshooting and execute test plans on S/P-GTW of EPG and vEPG.
  • Analysis,monitoring and troubleshooting support of traffic on Data Core network nodes: SGW/PGW, SSR,PCEF,MME,OCS,HSS,PCRF), etc. to ensure the successful implementation of new software versions of core network equipment for data transmission; and also offering assistance in detecting and solving problems during the testing phases.
  • Analysis of traffic protocols :: [S1AP, NAS, Diameter, SCTP, SIP, GTPv2,http2, radius, TCP] by using Wireshark Trace Analyzer and Putty Command Line tools.
  • Managing the PDN connectivity of subscribers, including APN configuration, IP address allocation and session establishment to ensure reliable data connectivity and efficient resource utilization for subscribers data services.
  • Coordination of engineering and vendor groups for testing within deadlines.
  • Fault simulation replay,managing technical operations and preparing detailed reports.
  • Set up and management of different test environments in various server rooms.
  • Directly work with Regional Teams, Technical Project Managers, Project Manager,customer.
  • SKILLS :: EPG-vEPG-MME-MSS-HSS-HLR-Protocol analysis by Putty,Wireshark-S1AP-NAS-Diameter & GTPv2 Protocols-SIP-VoIP-SCTP-IP-DNS-SIP-VoIP-SCTP-Signalling-Call Control-Network Monitoring-SDP-RTP-Networking-Wireshark-Putty-WinSCP
  • Knowledge on the topics of 2G, 3G, 4G, 5G - IMS Mobile Core Networks Architecture,Call Flows and Interfaces between the CN elements(SGs, S3/Gn/Gp, S1-MME, SGd, SLg, S6a, S13, SLs, SBc, Gom, Gp/S3/S10, S11 etc.), Packet, and Voice Network, VoLTE/VoWiFi (AAA, WMG, SAPC),Critical understanding of Packet Core, EPC, NFV, vEPC, vIMS, vIPG,5GC.
  • System Integration - User Acceptance Testing – SW Configuration Management - Regression Testing - Reporting and Analysis - Team Coordination - Technical Documentation - Network Engineering.

Mobile Field Test Engineer

Xiaomi Italia
06.2021 - 01.2023
  • Good Knowledge on 3GPP Specs and Network and Modem Chipset Architechtures,End to end Call Flows,call processing of GSM/UMTS/LTE(VOLTE/CSFB/SRVCC)/NR RATs,UE Technologies,LTE EPC &5GC Network Elements and technologies.
  • Execute several operator OTA/COTA/GOTA operator customized and open market version test cases on mobile device fi rmwares and reporting reliable test results followed by regression, debugging with continuous collaboration with RnD teams.
  • Field Testing,Drive Testing,Localization Testing, Interoperability&Cellular tests for CS and IMS calling & Data Connectivity,Operator testing,Compliance & Pre-compliance Testing,Stability,Performance,Functional, Security & Compatibility Tests,Automation testing and user trials on the Early prototype and Post-release UE.
  • Analyzing UE's functional failure scenarios at modem level like Multi RAB, SRVCC, CSFB, CA, inter/intra band,Inter-RAT handover, IMS VoLTE calls, SIP messages,data, call drops, bad audio quality calls, PDP failures,ping failures, RF antenna imbalance, Handover failures,Handover failures from protocol stack perspective. Analysis of call KPI, modem crashes with respect to 4G/3G FW.
  • Proficient knowledge on UE log analysis from Qualcomm (QCAT,QXDM), MTK tools(ELT,Wireshark),JIRA bug reporting dashboard,Testrail and MiCase Test cases software.
  • Follow-up and Troubleshooting with all the modem tickets raised, prioritizing tickets, retest of fi xes, direct the issues to correct component team and ensure the effecient functionality of all the pre-release and post elease software versions.
  • In charge of design and optimization for local specifi cases.
  • Knowledge of mobile voice core (2G/3G/4G/5G) and/or fixed voice core,IMS networks and protocols.

Mobile Software Test Engineer

Oppo Italia
12.2019 - 06.2021
  • All pre-released and post release UE softwares (Qualcomm and MTK chipsets) are tested to ensure the capability of connecting to mainstream wireless network providers and Meet Carrier Requirements.
  • Functionality Testing of all the RATs-NR(NSA), VoLTE,LTE,WCDMA,GSM and their Interoperability.
  • Cellular tests for CS and IMS (Calling,Data Connectivity) which includes KPI Testing,Operator Testing,Protocol Testing,Field Testing,Compliance&Pre-compliance Testing,Stability,Performance,Security & Compatibility Testing,Automation testing,Throughput Testing and user trials on UE firmwares.
  • Persistent updating of UE Andriod systems(ColorOS) for debugging and ~x problems using proprietary flashing tool. Execution of tests including basic scenario and advance scenario related to attach, PLMN scan, calls,data,SMS, Attach
  • Identifying,tracking and Reporting all the carrier network and UE functionality bugs and supporting developers in troubleshooting of all the technical issues in setup during testing and resolving them by completing the additional tests.
  • Debugging and Resolving setup issues based on priority and severity related to software configuration,modem ; conduct regression and analyze results and insist on script enhancement/modification by continuous coordination with RnD teams.
  • Sound knowledge of Qualcomm (QCAT,QXDM,QPST,QPAT) and MTK(ELT,Wireshark) tools; ALM&RTC Bug reporting softwares , File Zilla FTP software.

Fiber Optic Engineer

CPE Italia
06.2019 - 12.2019
  • Strong knowledge of all types of Fiber Optic components such as patch-cords, cables, connectors,adaptors,attenuators,High speed AOC and DAC cables,Various type of Transceivers(SFP,QSFP,CFP etc.),splicers,optical network analyzer tools,hardware integration of copper and ber aerial, underground and intra-building solutions.
  • Evaluate, document and adhere to Client design requirements. Support design team in generating detailed network drawings while supporting ongoing design needs.
  • Working in Tandem with the Engineering Assistants and Draftsmen to provide Technical assistance on Fiber Optic cale network design analysis,cable routing,building BoMs for all the material,equipment and components required for the FO cable layout,evaluating reports and drawings for quality enhancements.
  • Read and interpreted blueprints, technical drawings, schematics, and computer-generated reports.

Telecom Engineer

Terasoft Ltd
05.2015 - 10.2016
  • Validates RF Link performance,quality and reliablility.Execute the required test scripts as per the defi ned test scope for each project .Establishes documentation standards and practices for wireless LAN networks.
  • Testing new protocols that supports VoIP and IP multimedia subsystems.
  • Used measuring and diagnostic tools such as wireless packet captures,Wi-Fi and Spectrum Analyzer to aid in troubleshooting process and problem resolution efforts.
  • Review layer 3 messages,investigate,register collection and resolve wireless network issue of GSM,CDMA,LTE,VoLTE,IOT/Operator defined RCS.
  • Updated software and firmware with latest patches.Reviewed and tested installations for compliance with quality control standards.
  • Upload the drive logs on the FTP server on daily basis for analysis.Perform SSD testing and capture Download/Upload throughput on the data collection S/W along with the Speed test Ookla results.

Education

Master of Science - Telecommunication Engineering

Politecnico Di Milano
Milan, Italy
04.2019

Bachelor of Technology - Electronics and Telecommunication Engineering

Jawaharlal Nehru Technological University
Hyderabad, India
04.2015

Skills

  • Packet Trace Analysis
  • Networking and Routing Protocol Expertise
  • Wireless Networks Troubleshooting
  • Layer-2/3 Protocols
  • Bandwidth Evaluations
  • Mobile Device Management
  • Root Cause Analysis
  • Equipment and Network Configurations
  • Strong Technical troubleshooting Skills
  • Performance Improvement , Risk Assessment
  • Verbal and Written Communication
  • Collaborative Ability , Proactive Team Player

Personal Information

Date of Birth :: 03/24/94     

Nationality :: Indian

Profile Link :: https://www.linkedin.com/in/bhanuprakashreddynagarla/

Languages

English
Bilingual or Proficient (C2)
Hindi
Advanced (C1)
Telugu
Bilingual or Proficient (C2)
Italian
Intermediate (B1)

Certification

Programming Languages/Web Technologies ::
C,Java,Python,HTML,CSS,Java Script
Database :: Oracle DB,mySQL
OS :: Windows,Linux,UNIX
Cloud Technologies :: AWS
Networking Courses :: CCNA

Internships

1.Assistant support engineer for the embedded systems chip level design at Welly Technologies,Hyderabad.

2.Telecom Engineer Traineeship in BSNL,Hyderabad.

Personal Assets

Personality :: Sportive, Enthusiastic, Loyal, Initiative, Optimistic, Extrovert, Leadership skills, Detail attention, Task Efficiency, Inspirational, Quick learning, Team work and Social Responsibility 

Hobbies :: Playing Cricket, Reading Novels and new articles and publishings about the latest technology innovations, following current affairs and news, Listening music.

Timeline

Connectivity and Network Engineer-4G/5G

Capgemini Italia
01.2023 - Current

Mobile Field Test Engineer

Xiaomi Italia
06.2021 - 01.2023

Mobile Software Test Engineer

Oppo Italia
12.2019 - 06.2021

Fiber Optic Engineer

CPE Italia
06.2019 - 12.2019

Telecom Engineer

Terasoft Ltd
05.2015 - 10.2016

Master of Science - Telecommunication Engineering

Politecnico Di Milano

Bachelor of Technology - Electronics and Telecommunication Engineering

Jawaharlal Nehru Technological University

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Bhanu Prakash Reddy Nagarla