romanantl

As a core team member, I helped build the new trezor.io platform from the ground up using React, TypeScript, GraphQL, and Tailwind CSS. Beyond translating Figma designs into high-performance UIs, I took full ownership of the local development environment and Dockerization to ensure a seamless workflow for the rest of our engineers. I served as the primary technical expert for integrating the complex Adyen payment gateway. Additionally, I championed automated testing strategies using Playwright and built custom internal tooling to significantly accelerate and stabilize our deployment pipeline.

As a Frontend Developer, I managed the frontend development stack and built scalable JavaScript and TypeScript components. I was primarily focused on developing a specialized analytics platform tailored specifically for Twitch streamers and their audience data.

Operating as a freelance Full Stack and Web3 Developer, I delivered several end-to-end projects. For EIN Presswire, I operated as the sole developer, architecting and building a complete web platform from scratch using Vue.js. Through Flexiana, I developed a fully functional cryptocurrency exchange using Web3 technologies, Ethereum networks, and Solidity smart contracts. Additionally, I collaborated with a core team to build a fast-paced point-of-sale (POS) system for Alza.cz utilizing Angular and .NET.

Development of intranet applications and portal for better accessibility and efficiency for internal employees and their clients.

Developing frontend and backend systems including customizations for current customers in technologies like Phalcon, Angular, ReactJS, Redux, Webpack and more.