• Crafted Android Bluetooth library in under 1 month for complex connection and data transfer.• Mastered Android Media Player in 2 weeks and integrated with advanced animation features.• Introduced the MVI pattern to the team, adopted in over 4 new features, boosting testability, and increasing code coverage by 10 percent.

• Directed team of 4 Android developers in architecting and supervising B2B sales, transport management, and wholesale app development. • Built a printer library to provide support for more than 3 printer brands.• Incorporated an in-app updates feature with push notifications for swift delivery of critical fixes within 24 hours.• Migrated SQL to NoSQL, cutting persistence time for large datasets from 2-3 minutes to around 25 seconds.

• Integrating RFID reader into an Android app, reducing inventory-taking time in standard office rooms from 2-3 hours to under 15 minutes.• Implemented local cache mechanism to minimize network bandwidth, reducing overall network costs by over 40 percent.• Implemented a synchronization mechanism that synchronizes the server and app during idle hours, reducing user’s server wait time from 2-5 seconds to under half a second.

• Developed and published a fully functional carpooling app in 3 months.• Integrated instant messaging feature which resulted in 20% increase in shared rides.