I've built payment orchestration and real-time poker backend services at Creatiosoft, unifying providers including NowPayments, AptPay, Authorize.net, and Approvely through a reusable NPM package. I use NodeJS, ExpressJS, NestJS, and Redis streams to improve transaction reliability, retries, failure recovery, and high-concurrency workflows.
Previously at Procol, I delivered Ruby on Rails architecture changes, database migrations, localization, approval flows, reporting, and purchase-order reordering, while cutting latency for key APIs from 2–3 seconds to under 500ms. I also built DesignIt, an AI-powered system design interview platform that reached 650+ users and 1.4K+ submissions in two weeks, and VidCraft, a microservices-based video processing application using FFmpeg, AWS S3, and SQS.
