- Refactored the old code base and migrated it to support newer Android versions. 

- Improved UI and performance of core features. 

- Refactored the entire data access layer to remove code duplication and fix data inconsistencies.

- Upgraded all old base to target newer Android versions while maintaining compatibility with older versions. 

- Rewrote the entire UI for all core user-facing features to bring rendering time under Android vitals set limit.

- Improved Integration with WhatsApp. 

- Lead the development of Chat Sports app from start to finish and till deployment. 

- I still maintain this application.

I solely developed these code samples and the purpose of these is to showcase clients some sample code. Its purpose is to guide junior developers in teaching how to use MVVM and how to do the API integration correctly.

This is a simple material design weekday picker just like Time and Date pickers of Android support library. This is an open source library that I wrote.

A lightweight file picker library based on Android Storage Access Framework (SAF). It does not only let you pick from internal storage, external storage but also you let you take image/video directly from the camera, all of this without any need for runtime permissions. 

This is an open source library written by me.

Unscented Kalman Filter (C++) for sensor fusion of Lidar and Radar to localize a vehicle position and velocity.

It is an open source software that I developed under Udacity's Self-Driving Car Engineer Nanodegree program.

• Leading developer of 2 of the Android apps at Jirah, Jirah Sitter app and Jirah Parent app

• rote one app from scratch to its deployment. The whole onboarding to all the user flows are written by me.

• Wrote a custom Chat SDK based on top of SendBird and published it as a closed source library. This chat library is used by both Android apps to achieve real-time chat feature.