"Rocket.Chat is a free and open source team chat collaboration platform that allows users to communicate securely in real-time across devices on web, desktop or mobile and to customize their interface with a range of plugins, themes and integrations with other key software. "

Completely rewritten the Android app from scratch in Kotlin. Developed an SDK for the official app and third parties to use it as a
standard for communication with our servers.

Android version of workshop notes' text digitiser. App used computer vision resources to view and detect rectangle-like shapes using the device camera and convert any found stickers into digital format.

• Worked on an application with an ever growing user base, over a highly
  fragmented Android platform spectrum, from low-end to flagship devices.
  It was Netflix-like but for premium apps.
• Pulled up the app by applying a high amount of bug-fixing, including ones
  that could potentially cause user base to decline, to name a few,
  application preloading, performance, memory, and networking issues.
• Worked on the existing DRM system appliance by means of reverse
  engineering existing app applying patches and injecting the DRM at the
  Dalvik's bytecode level.

• PHP web development.

• Introducing new technologies' support to the university professors, worked on internal systems' implementation, development of module implementation to content management systems in use