Denis – Node.js, JavaScript, Flutter

It is a mobile fitness training app, focused on providing personalised training plans, based on a person's body properties and personal preferences, with the option to exclude exercises hitting painful body areas.

• Created the architecture of the whole solution from scratch;
• Designed and built the CMS for the app's main content;
• Created the payment service;
• Implemented analytics and tracking solutions;
• Found and fixed a bug in Flutter's Official iOS in-app purchase plug-in which made him a contributor to the official Flutter Plugins repo;
• Worked closely with the product owner to define and satisfy business needs.

It is an alphabet-learning game for toddlers and little kids. It was developed as a solo app released on the AppStore, but later it became a module in a larger app for kids' education called "Aldoo kids."

• Defined and developed the game;
• Worked with a 2D artist for the graphics and animations;
• Built, run and released the app on the Appstore.

It is a based clicker game for adult audience.

• Built the architecture of the whole solution;
• Designed and created the main game-loop service;
• Created client-build server (Unity) and implemented Gitlab's CI/CD pipelines;
• Implemented 3rd party payments in a custom published .apk;
• Lead a team of 6 developers.

It is a real-time chat system in a web-based game.

• Designed the software architecture and built the system;
• Integrated the chat system with the existing web-based game;
• Managed a front-end developer;
• Cooperated with the game designer and the product owner to define the business needs.