Sohrab Ahmad

Software Engineer

Hyderabad, Telangana, India15 yrs 3 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Expert in Real-Time Operating Systems and Embedded Systems.
Proven track record in mobile technology development.
Strong background in database management and software engineering.

Stackforce AI infers this person is a Telecommunications and Software Development expert with a focus on Embedded Systems.

Contact

Skills

Core Skills

Embedded SystemsReal-time Operating SystemsDatabase Management Systems

Other Skills

C/C++PL/SQLQXDMT32P4Source InsightVisual StudioSVNSQLC LanguageThreadXEmbedded Operating SystemsCore JavaOperating SystemsAlgorithms

About

Worked for Samsung Electronics and Oracle India Pvt. Ltd. I have worked on different domains. Has Experience in RTOS and Databases.Has programming experience in C/C++ and Pl/Sql.

Experience

Qualcomm

5 roles

Senior Staff Engineer/Manager

Promoted

Nov 2023 – Present · 2 yrs 4 mos

Staff Engineer

Oct 2019 – Nov 2023 · 4 yrs 1 mo

Senior Lead Engineer

Nov 2017 – Oct 2019 · 1 yr 11 mos

Senior Engineer

Promoted

Apr 2015 – Oct 2017 · 2 yrs 6 mos

Engineer

Oct 2012 – Apr 2015 · 2 yrs 6 mos

Worked in Layer 3(Non Access Stratum) of modem protocol stack.
Non-access stratum (NAS) is a functional layer in the UMTS and LTE wireless telecom protocol stacks between the core network and user equipment.
This layer is used to manage the establishment of communication sessions and for maintaining continuous communications with the user equipment as it moves.
A further description of NAS is that it is a protocol for messages passed between the User Equipment, also known as mobiles, and Core Nodes (e.g. Mobile Switching Center, Serving GPRS Support Node, or Mobility Management Entity) that is passed transparently through the radio network.
Examples of NAS messages include Update or Attach messages, Authentication Messages, Service Requests and so forth. Once the User Equipment (UE) establishes a radio connection, the UE uses the radio connection to communicate with the core nodes to coordinate service
As an Engineer my role involved
1. Developing new feature for customer based on market requirement so that User has better Mobility while moving from one place to another( ie from one location area to another) and has better call success ration.
2. Supporting/Resolving bugs found during Regression/Automation/Acceptance testing
3. Implementing the new Spec release CRs( 3GPP spec 24.301/24.008/23.122)
4. Guiding the new team members to ramp up quickly
5. Assisting customer engineers once Modem software is released.
6. Writing unit test cases for regression.
Has in-depth Knowledge of.
1. PLMN selction in home and roam network( spec 23122)
2. EMM/ESM/SM/MM/GMM layer functionality( 24301 and 24008)
3. Reselection/Redirection/handover/SRVCC/CSFB/CCO etc
Tools used:
1. QXDM
2. T32
3. P4
4. Source insight
5. Visual Studio 2005 and C++ 6.0
6. SVN

C/C++PL/SQLQXDMT32P4Source Insight+4

Oracle

Software Engineer

Aug 2012 – Oct 2012 · 2 mos · Greater Hyderabad Area

Worked for Oracle India Pvt Ltd., Hyderabad in Application Technology Group as Software Engineer Developer from August 2012 to October 2012 for AD team.
1. Applications Technology group provides the foundation for whole of Oracle E-Business Suite.
2. As a member of the software engineering division, our team provided assistance in defining and developing software for tasks associated with the developing, debugging or designing of software applications or operating systems.
3. We provided technical leadership to other software developers. Specify, design and implement modest changes to existing software architecture to meet changing requirements.
4. Worked on the implementation of a database System that allows Customers to patch their application while the System is UP and will decrease the cut-over time and hence allows the customers to do their business without any system down.
5. Has knowledge of Views, Edition Based Database System, Editioning Views, Triggers like F/W Cross Edition Triggers and reverse Cross edition Trigger, Logon Triggers and many other concepts of Database.
6. Used Pl/SQL and Sql for the implementation of Near to Zero Down time for patching Oracle applications.

PL/SQLSQLDatabase Management Systems

Samsung electronics

Engineer

Jan 2011 – Aug 2012 · 1 yr 7 mos · Noida, Uttar Pradesh, India

Worked on Mobile Technology and served as a key member of Framework /UI Team of MMP(Man Machine Platform).
1. MMP platform was based on ThreadX (Real Time Operating System)that is written in C language.
2. Has in depth knowledge of Process Scheduling, Task priority, Thread Scheduling, Thread safety, Re-entrance, locking protocols,Semaphore/Mutex, Deadlock prevention/Avoidance, and other concepts used in Real Time System.
3. Worked on Editors, Xt9 Engine, Language Database, Keyboard Database, Keyboard Parser, Font Engine, Rendering Engine, Simulator on Visual Studio 2006.
4. Framework/UI Team was responsible for the Look and feel of Samsung feature Phone.
5. Used Source Insight, SVN, Perforce, Mobile Analyzer for taking traces, Core Dump Analysis, Lauterbach etc.
6. Worked on the implementation/porting of Khmer Language and other languages.
7. Worked on hundreds of Market related critical bugs.
8. Has complete knowledge of S/W life cycle, plus Sanity testing, Menu Tree testing, Aging Testing, Simulated/Automated Testing, and Exploratory Testing.
9. Has worked with the Software Testing/Quality Assurance/ Hardware Testing Teams.