Sreenath Natarajan                                       Passeport: J3008450

7154 Schilling Ave, Apt40, San Diego, CA 92126                                     Visa Type: H1B                                  

858 - 837 -1834 • nsreenath1947@gmail.com                                         Validity: Oct 10, 2017

 

SUMMARY OF QUALIFICATIONS:

 

·   8+ year experience in overall software development life cycle

·   Obtained Bachelors of Engineering (B.E.) in Electronics & Communication Engineering under Vishweshrayya Technological University in the year 2005

·   Working on IMS, VoLTE and RCS development

 

TECHNICAL PROFICIENCY:

·               Programming Languages: C and C++ with OOPS

·               Application protocols: SIP2.0(rfc 3261), SDP, RTP,RTCP,MSRP

·               Standards: IR92(VoLTE), IMS(IP Multimedia Subsystem),RCS5.1, Converged IP Messaging(CPM) ,RFC 3261 and WAP2.0, Wi-Fi offload, Mobile IP

·               RTOS: Nucleus & Linux

·                                                                                                      Configuration tools: Clear case (IBM rational), Perforce, SVN and CVS

·                                                                                                      IDE: Microsoft Visual C++ 6.0, Microsoft Visual Studio 2008 (simulator debugging environment).

·               Issue Tracking tools: Bugzilla, Prism, Jtrack, CRMDB and TD (HP product)

·               Debugging Tools: TRACE32/JTAG (LAUTERBATCH), QXDM (logs),QPST,QCAT, PCAP, Wireshark, Catcher (logs), Genie (Logs),Crash analyzer,

·               Programming environment: ARM9,MTK, 8974,8994,8960 Qualcomm chipset

PROFESSIONAL EXPERIENCE:

 

Engineer II in Qualcomm Technologies, San Diego, CA (USA) [June 2013 - Present]

(Sasken Communication Technologies Santa Clara, CA, USA, on deputation)

 

VoLTE framework development:

Working on IMS stack development on modem processor which includes development and feature enhancements on Voice over LTE (VoLTE) framework

 

Ø       Design, development, implementation, integration and porting of Wi-Fi offload feature of voice call(PS call) on   various targets (chipsets) and tested under lab environment

Ø       Handling inter-RAT handover of voice call like LTE<->Wi-Fi, WI-Fi<-> WCDMA, HSPA etc.

Ø       IWLAN feature customization based on vendor needs

Ø       Handling VoLTE conference scenarios with state machines and enhancements on conference framework.

Ø       Development of unit test framework for IWLAN feature and conferencing

Ø       KPI logging handling for IWLAN

Ø       Bug fixing on various modules like QoS, conference event packages (CEP), SIP interface modules.

Ø       Involved in lab environment setup like customizing TBS (acting as eNodeB), IWF (acting as EPC core) and ICE server (IMS core network) for VolTE calls.

 

Other activities: Unit testing feature on target, interaction with IOT team, log analysis, triaging issues, fixing network setup issues related to IWLAN setup.

 

Development environment: Microsoft Visual Studio 2008 on modem processor

Language: C & C++

Protocols: SIP, SDP, RTP, RTCP and IKeV4 (security)

Simulation tools: HCL test bench and unit test framework (UTF)

 

RCS 5.1 stack development:

 

Involved in development of components of RCS stack i.e., CPM IM (RCS chat)

 

Design, development and implementation of CPM IM(RCS chat) client framework in compliance with RCS5.1 on apps processor.

 

The framework consists of:

 

Ø       The framework consists of JNI interface which exposes API to JNI layer for UI to use,

Ø       CPM IM enabler which is incompliance with RCS 5.1 and maintains state machine with SIP (Session service and Request handlers) and MSRP for data exchange between DUT and remote party. 

 

CPM IM provides following functionalities:

 

Ø       One to One chat

Ø       Group chat session via ICE server

Ø       Composing, delivery and display notifications for chat messages

 

Development environment: Microsoft Visual Studio 2008 and Linux on apps processor

Language: C++

Protocols: SIP, SDP and MSRP

Simulation tools: unit test framework (UTF)

 

Other activities: Development of unit test framework for testing CPM IM, end – end testing on device, handling IM with other enablers active( file transfer, page mode and large mode), maintenance of lab environment like TBS(eNodeB), IWF and ICE(IMS core)

 

Sasken Communication Technologies Bangalore (India) [Dec 2009 – June 2013]

Client: LG Soft India Pvt ltd

 

Product commercialization for various features LG handsets like LG34, GX200, and A2 (triple sim model) and A120:

 

Feature design along with UI, development, implementation, coding, bug fixing, integration, porting across different platforms versions, language porting across various regions of the world, unit testing on target, debugging, bug fixing  and handling release for various applications for LG models.

 

Development environment: MediaTek platform and chipset

Language: C

 

Kyocera Wireless India Pvt Ltd, Bangalore [Aug 2008 - Dec 2009]

Customer: Cricket (San Diego) and MetroPCS (San Diego)

This project mainly deals with UI development, backend logic handling and state machine for CDMA call using BREW and widget framework for Kyocera phones (Qualcomm chipsets).

 

 

Jataayu Software Pvt.Ltd, (Comviva technologies), Bangalore [April 2006 -- July 2008]

Customer: Motorola, India

 

This project involves development of browser application UI and backend logic, porting platform independent browser core libraries, development of platform dependent layer, development of HTTP and socket interface layer, unit test framework to test browser core libraries and unit test framework to test platform dependent layer APIs, bug fixing, SDD development, SOW and maintaining configuration controller.

 

Carrier recognitions: “One of the Best performer” in Sasken during 2012, “Achiever of the quarter” in Sasken during 2013 and spot recognitions from LG (titled bright spark, tech guru, champion)

 

EDUCATION:

 

Bachelor of engineering specialization in Electronics and Communication Engineering, pursued in the college SIT, Tumkur, Karnataka (INDIA) under Vishwesvaraya Technological University, Belgaum (INDIA)

Aggregate marks: 71.12/100