Worked on Tea-Fi - multichain De-Fi platform (EVM, Solana, Bitcoin) with support for token swap, gasless transaction and staking through synthetic assets. Developed and delivered backend for Tea-Fi Presale with Admin panel and reward claim distribution. Collaborated in a team to develop and deliver full stack infrastructure for Tea-Fi platform (React frontend + Nest.js backend with PostgreSQL, Redis, RabbitMQ). Developed and delivered multichain user wallet portfolio and flexible wallet history with support for displaying several wallets, importing custom tokens, multisend transfer. Developed and optimized reward system for referral program and custom daily/weekly tasks.

Automatization of business processes on ELMA365 platform, integration with external services, development of microservices to extend platform functionality. Developed and shipped number of business processes on ELMA365 platform using TypeScript and ELMA3 using C#. Developed and shipped microservice visual comparison of documents using Python, OpenCV, and Tesseract OCR. Developed and shipped Windows service for mass digital signing of documents/files using ASP.NET. Rewrote service in Go to allow use the service as Docker container without referencing COM signing library. Conducted code reviews for other developers.

Main developer for social platform app for casual online debating Developed and shipped GraphQL backend with Node.js and TypeScript, MongoDB, Redis Stack, Meilisearch, and Firebase Cloud Messaging. Developed Flutter app and shipped to Play Market for Android. Developed early web version of the platform with Vue.js, pivoted in favor of the app version. Deployed the backend on Linode VPS using Docker Swarm.