fixing bugs and develop features
- publishing apps in the stores
- creating gesture animations
- connecting crypto wallets
- displaying charts
- connecting payment systems
- working with firebase
- working with websockets, https, REST
- connecting crypto contracts
- working with 2d animation
- developing micro components

AI determining the location of the item in space on camera stream, reading barcodes
- drawing in canvas and working with svg
- connecting native camera streams, as well as image conversation tools
- working with gestures and animation
- working with REST, backend integration
- developing micro components and native components
- adding splash screens and app icons
- working with Bluetooth printers, and printing pdf labels
- optimizing the FlatList for large amount of data
- adding Google AdMob and Google auth

displaying routes, points on the map, navigation along them
- adding Google, Facebook, Apple auth
- creating complex animations
- working with REST
- creating own virtual list, working with search algorithms
- caching data in local file system and local database on phone
- complex error handling, design of internal data storage structures
- working with forms and uploading images

fixing bugs, developing new functionality
- payment system integration
- working with REST
- calculation of time zone offset for sending sms
- developing mail letters
- working with drag and drop
- developing navigation
- developing database requests using meteor js and sequelize
- displaying data in a charts
- writing selenium tests / unit with web driwer
- working with video content, developing of subscription service