Jul 2021 – Oct 2024 · 3 yrs 3 mos · Hyderabad, Telangana, India · Hybrid

• Worked on Microsoft Defender for Android

Mar 2019 – Feb 2020 · 11 mos

• Worked with ML Team to design Type-Ahead Sticker Suggestion System for Messenger App.
• Implemented Marisa Trie to create an in-memory cache of suggestion, our suggestion system was context-based which takes the last 10 message contexts, the current region of the user, and the relationship of user.
• Implemented Tflite based Native (c++) library to speed up the suggestion, added an in-memory file system to improve loading time.

Feb 2019 – Jul 2021 · 2 yrs 5 mos

• Worked on Creating Selfie to 2D Avatar SDK based on C++ and OpenGLES mostly similar to BitMoji and FB Avatar.
• Implemented CPP based Skeleton Rendering and Animation of HikeMoji using OpenGLES and cocos2dX which used at cross-platform (Android/iOS)
• Optimized Rendering by batching and simplification of Shaders.

Sep 2018 – Mar 2019 · 6 mos

• Timeline Feed :
• Worked with Hike Timeline Team, which most similar to the Facebook timeline here worked on Optimization of scrolling of feeds, pinch to zoom for media feed item and solving market critical issues.
• Implemented new UX/UI for Story and Timeline for Hike New Version, worked with Product and design team.
• Performance Optimization & ANR Reduction
• Worked on App Launch optimization for Android app, Improved 20% App launch time by doing parallelization and async work.
• Optimized Chat fast scrolling for the media item, reduced the Android Chat Open time.
• Worked on ANR reduction and App stability

Sep 2017 – Sep 2018 · 1 yr

• Worked on Development of GPU Backed Camera Architecture for Android, Which Supports SurfaceTexture based rendering for Live Filter like Face Mask, Also SDK support post captured Image and Video Effects like Color Filter, Transition Effects based on OpenGLES Shader.
• Implemented Android Cubic Path API based on OpenGLES vertex buffer and shader for fast freehand Drawing on Image and Video Surface.
• Optimized the Video Encoder using GPU-based encoding.

Mar 2016 – Aug 2017 · 1 yr 5 mos · Noida Area, India

• OpenGLES Based MultiThreaded SDK for Tizen TV
• Summary:-
• Middleware SDK Development for Developing SmartTV Apps
• Currently it's used in tizen smart tv application like ( Apps Panel , USB Browser , Menu , HomeScreen Panel)
• Major Task:->
• Integrated MultiThreaded Rendering Engine using Double Property Scene Graph.
• GL based Nine Patch Image Component Implementation.
• Scrollable Marque Text Widget Development.
• Opengl Shader based Gaussian blur implementation.
• Image masking shader development.
• Optimisation:-
• Previously SDK was single thread for animation and rendering , so changed
• architecture to support rendering in separate render thread using double buffered and
• messaging queue.
• Opengl State change optimisation using batching which includes :->
• Shader Batching
• Texture Atlas for reducing bindTexture calls.
• Text to Texture caching using offscreen buffer. • Removing Scissor clip calls.
• Mono .Net based SDK development
• Summary :->
• C# Wrapper for Tizen SDK
• Task:->
• Interop Layer (C#)
• Developed Interop layer to bind C++ classes to C# layer.
• Delegate/Event and Action Integration for event callback propagation. User Interface Layer(C#)
• Developed C# based Widget for Image , Text , Color Component.
• Developed Horizontal and Linear Layout for widget layouting.

Mar 2013 – Mar 2016 · 3 yrs · Noida Area, India

• 3D Chart SDK for Mobile and Tablet Device
• Summary:->
• It's part of Samsung android Framework , the aim was to provide native SDK to developed Graphical 3D Charts
• Task ->
• 1) Native Layer ( C++ , Opengl)
• Developed Architecture of Rendering Engine.
• Implemented wrapper for opengl.
• Implemented Color Picking algorithm for 3D Object Selection. • 3D Slice based Pie Chart Rendering .
• 2) Interop Layer ( JNI )
• Implemented JNI Classes for binding Native Layer and Application Layer.
• 3) User Interface Layer ( Java , Android)
• Implemented android chart api using java classes.
• Optimisation:->
• Have removed 3D color picking due to double rendering overhead, and implemented ray picking algorithm for 3d chart selection.

Jul 2012 – Jan 2013 · 6 mos · hyderabad , india

• Trainee Project
• Developed Single-Handly Brick Breaker Game Using OpenGLES.( Rendering, Animation, GamePlay Logic).
• 3D Lighting Integration to existing Project using shader Programming
• Market Project( AAA Games Developed By Gameloft )
• 1) Worked on GameEngine to improve rendering performance on the Mobile
• 2) Solved Major Market device-specific issue of Games.