2022 Information Technology Judge

Oleksii Kosynskyi

Senior Software Engineer | WelcomeLend | Ukraine

I am a developer from Ukraine. I have a huge experience to develop web applications. About 12 years. Usually, I use javascript, ReactJS on the frontend, and NodeJS on the backend. Also, I worked with blockchain technology a lot.
I worked with microservices, serverless solutions, (AWS lambda), and blockchain technology. I wrote many smart contracts on solidity language. Also, I have the experience to slice monolith backend to microservices to handle high load. And optimize database queries, sharding databases, and many other things.