Uttam Sarkar

Software Engineer

Bengaluru, Karnataka, India20 yrs 9 mos experience

Most Likely To SwitchAI Enabled

Key Highlights

Over 15 years of experience in telecom protocols.
Expertise in LTE architecture and protocol stack development.
Certified in Business Analytics and Machine Learning.

Stackforce AI infers this person is a Telecommunications expert with extensive experience in protocol development and system integration.

Contact

Skills

Core Skills

AgpsAglonassGpsDual Sim

Other Skills

IPC SupportRequirement AnalysisImplementationIntegrationCustomer SupportAT CommandsTCP/IPTestingAI in 6GCGPRSClearCaseEmbedded SystemsTelecommunicationsLinux

About

• Over 15 years of software design, development and testing experience in variety of telecom protocols at RAN and terminal side. • Well versed with overall GSM/GPRS, LTE architecture combined with hands on developmental experience of NAS/AS User Plane. • Expertise in MAC and Scheduler in LTE. • Cloud RAN protocol stack developer. • Well versed with 5G NR RAN and overall architecture. • Certification on Business Analytics. • Used C/C++ – Language in all the development projects. • Worked on Networking Protocols in NAS sub layers has given insight of TCP, UDP, IP, PPP, DHCP, DNR. • Worked on AGPS & AGLONASS. • Standards/Customer specific requirement and various RFC’s implementation. • Excellent Process and System orientation. Open minded and adaptable to dynamics in the organization. Constructive positive attitude towards continuous learning and improvement.

Experience

20 yrs 9 mos

Total Experience

3 yrs 5 mos

Average Tenure

5 yrs

Current Experience

Mediatek

Senior Staff Engineer

May 2021 – Present · 5 yrs · Bangalore Urban, Karnataka, India

Wipro

Technical Leader

Jun 2015 – May 2021 · 5 yrs 11 mos · Kolkata, West Bengal, India

Cisco

SOFTWARE ENGINEER IV

Nov 2014 – Jun 2015 · 7 mos · Bangalore

Switch & FEX maintenance for platform software.

Ericsson

Senior Technical Lead

Aug 2013 – Nov 2014 · 1 yr 3 mos · Bengaluru, Karnataka, India

Description :
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MEGA2 is the SAMSUNG product (launched in market on August) which is based on Radium Platform. Radium is a platform name which supports GSM, WCDMA and LTE RAT.
Ericsson provides Modem and SAMSUNG provides the Android APE.
GPS & GLONASS chip is present in the SAMSUNG APE. SAMSUNG APE needs support for the Assistance data from Modem for location fix or measurement.
Responsibilities:
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AGPS & AGLONASS IPC Support:
Requirement Analysis: To Define the IPC interface for Control Plane AGPS & AGLONASS support in OEM layer to provide the Assistance data to SAMSUNG APE which is received from NS stack.
Implementation of the IPC command for Control Plane AGPS & AGLONASS support, integration and provided on site customer support.
Implementation for SUPL ECID & OTDOA support in OEM layer.

AGPSAGLONASSIPC SupportRequirement AnalysisImplementationIntegration+1

St-ericsson india pvt ltd

Specialist

Aug 2007 – Jul 2013 · 5 yrs 11 mos · Bengaluru, Karnataka, India

1.Description: GPS/AGPS stack support & AT Systemization Activity on Thorium Platform.
Responsibilities:
Complete ownership of the LBSA module and for AT positioning Commands.
Solving ERs, IOT Support, Technical support to team.
CR analysis, design, implementation, Integration,Testing Support.
AT Systemization Activity.
Impact Analysis of the new CR for AT Commands: requirement analysis, discussion with peer SM and defines the new interface.
2.Description : Single (U)SIM Dual Stack (SUDS):CS on 2G and PS on 3G
Responsibilities:
Interface & Detailed Design, Scenarios identification for SPV and NAS-UP
: L3/L2(LLC, SNDCP, SM). modules.
Implementation, Unit Level Testing done for the impacted modules.
Participated actively in Integration related issues and bug fixing.
3.Description: Dual SIM Dual Standby (DSDS) :
Responsibilities:
Interface & Detailed Design, Scenarios identification for dual SIM case.
Implementation in IPSTACK, PPP Server, AT Modules.
Maintenance of L3/L2(LLC, SNDCP, SM).
Participated actively in Integration related issues and bug fixing.
4. Description: TCP/IP AT Commands for WISMO228
Responsibilities:
Technically headed this project.
Responsibilities includes Requirement understanding, Design, Development, Testing , Validation support, CSl2 Training, Customer support.
5. Description: NAS-UP Modules Maintenance:
Responsibilities:
Competency Tech Lead of NAS-UP modules.
Major design change in LLC to support AT&T stress test case (400 Hr data transfer).
RFC reference for Networking Protocols: RFC768 (UDP), RFC791 (IPv4), RFC793 (TCP), RFC792 (ICMP), RFC2132 (DHCP), RFC1034 (DNS), RFC1661 (PPP), RFC1570 (LCP), RFC1332 (IPCP), RFC1662 (HDLC).
Implementation of RFC3782 – TCP New Reno.
Implementation of RFC2018 – TCP SACK Option.
Implementation of RFC4821 – Dynamic MSS Adjustment.
Implementation of RFC792 (ECHO REQ/REPLY) – ICMP.
Analyzed and Solved Regular PR and CR in L4/L3/L2.

GPSAGPSAT CommandsTCP/IPIntegrationTesting

Sasken communication technologies ltd

Software Engineer

Jul 2005 – Aug 2007 · 2 yrs 1 mo

Description:
========
The project deals with L2, L3 and ACI part of L4 layer of TI’s Locosto Protocol stack. Analysing, fixing and testing of customer issues, system testing issues and other issues of ACI,L2 and L3 layers of TI-Locosto Protocol Stack Enhancements or development of new features of the existing TI-Locosto Protocol Stack.
Responsibilities:
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Enhancement for the implementation of new At command.
==========================================================================
Description:
========
The project deals with L2, L3 and ACI part of L4 layer of TI’s EDGE/GSM/GPRS Protocol stack. Analyzing, fixing and testing of customer issues, system testing issues and other issues of ACI, L2 and L3 layers of TI-EDGE Protocol Stack Enhancements or development of new features of the existing TI-EDGE Protocol Stack.
Responsibilities:
============
1. Analyzing & Fixing Bugs in ACI Layer.