Has experience in testing software, games (active participation in beta tests), as well as testing site performance. Performed various tasks, from the usual Landing Page layout, with cross-browser compatibility and adaptation for mobile devices, to a little help with databases (registration, balance on the site itself, etc.). Has experience in building blockchain based on Polkadot-js and pure Substrate. Finished work on a wallet for some cryptocurrencies on the NodeJS and NestJS frameworks. Finished work on the bridge between Realis. Network and Binance, on Rust, using the substrate-api-client and web3 libraries. Have experience of working on a microservice architecture for the interaction of games and the blockchain using tokio, actix, substrate-api-client and rust-web3.