atkachyshyn

I worked on building and maintaining backend infrastructure for chains, Web3 apps and games using Go, WebRPC, and REST. Managing cloud infrastructure with Docker, Kubernetes, and GCP. Integrating EVM chains, handling event indexing, and metadata management. Ensuring system reliability through CI/CD, observability, and metrics.

As a member of the marketplace and blockchain migration teams, I contributed to the development of a blockchain-integrated marketplace platform designed for seamless integration into third-party games. The platform supported features like bidding, instant selling, and NFT asset exchange using ERC-20 tokens. I collaborated on system architecture, implemented matching logic and pricing mechanisms, and helped ensure reliability through the saga pattern and actor model. As part of the migration effort, I worked with the team to transition the platform from an EVM-compatible blockchain to the Polkadot ecosystem, focusing on data integrity and compatibility with Substrate. I also helped build and maintain services that automated the migration process and published extrinsic's from sources such as games and marketplaces, using Kafka for scalable messaging.

Leading the development of a Shopify app that enables individuals unfamiliar with blockchain technology to create and sell NFTs, including ERC-721 and ERC-1155 tokens, supporting multiple media files with advanced copyright protection.

Participated in the development of a pioneering Layer 2 EVM-compatible blockchain, utilizing Directed Acyclic Graph (DAG) technology to significantly enhance transaction speed and capacity beyond the original Ethereum blockchain.

Various teams and projects. Developed medical web applications and international travel company business tools, integrating cutting-edge technology and improving system integrations and operations across multiple projects.