Anton Chyhariev

Team Lead / React Native / Next.js @ Cogitize

About

I am a Frontend & Mobile Team Lead with over 5 years of commercial experience in web and mobile development.I have led and developed more than 20 landing pages and 10+ production applications, including mobile apps for iOS and Android built with React Native and Expo (Bare workflow).My expertise includes complex frontend logic, mobile-native integrations, REST API communication, and fintech product development. I actively work with cryptocurrency platforms, trading tools, analytics dashboards, and real-time data systems.Participated as a speaker at React fwdays 2025 conference. Conducted practical courses for 3rd and 4th year students at Kyiv University, sharing industry best practices.Author of Coin Flow — a crypto analytics Telegram Mini App with AI features, Binance API integration, TradingView charts, and real-time market data.Frontend / Mobile Team Lead with hands-on development experience since 2020 and strong practical team management skills.Specialized in Next.js, React Native (Expo Bare workflow), Telegram Mini Apps, and building complex client applications with scalable architecture, REST API integrations, and fintech-focused solutions.Strong background in mobile application development, frontend architecture, and full-cycle product delivery — from idea and MVP to production and publication.

Country

City

Ukraine

Industry

Computer Software

Skill

React, React Native, React Native, Node JS, JavaScript, Node js, Next JS, Phaser, Telegram MiniApp

Experience

Team Lead / React Native / Next.js

Cogitize

2022-10 - Present · 4 yrs

I specialize in Next.js, React Native, MiniApps, as well as building complex logic, architecture, and client systems. Participant at React fwdays 2025 conference. Conducted React practical courses for 3rd and 4th year students at Kyiv University, sharing industry knowledge and best practices. Extensive experience working with fintech products, cryptocurrency technologies, and blockchain integrations. Deep understanding of trading platforms, payment systems, order books, real-time data feeds, and crypto exchanges APIs (Binance, Whitebit). Developed multiple fintech and crypto-related projects including portfolio analytics, trading tools, payment solutions, and market data visualization systems. Author of the project Coin Flow — a MiniApp with artificial intelligence, Binance API integration, TradingView charts, and quotes from Coingecko, Binance, and Whitebit. Interested in mobile development, architecture design, fintech solutions, cryptocurrency technologies, and systems with high process complexity.