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I'm a passionate Full-Stack Web Developer based in Wroclaw, Poland, specializing in building scalable web applications with React, TypeScript, and Node.js. I enjoy turning complex ideas into robust, maintainable software that delivers real value for users. Throughout my career I have collaborated across multi-disciplinary teams in e-commerce, healthcare, education, media, and crypto/NFT projects. I’m committed to accessible, high-quality code, comprehensive tests (Jest and RTL), and shipping features that balance UX, performance, and reliability.…I'm a passionate Full-Stack Web Developer based in Wroclaw, Poland, specializing in building scalable web applications with React, TypeScript, and Node.js. I enjoy turning complex ideas into robust, maintainable software that delivers real value for users. Throughout my career I have collaborated across multi-disciplinary teams in e-commerce, healthcare, education, media, and crypto/NFT projects. I’m committed to accessible, high-quality code, comprehensive tests (Jest and RTL), and shipping features that balance UX, performance, and reliability.

Dzhakhanhir Kalantarov

Full Stack Developer, Web Developer, Back-End Developer, +1

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I'm a passionate Full-Stack Web Developer based in Wroclaw, Poland, specializing in building scalable web applications with React, TypeScript, and Node.js. I enjoy turning complex ideas into robust, maintainable software that delivers real value for users. Throughout my career I have collaborated across multi-disciplinary teams in e-commerce, healthcare, education, media, and crypto/NFT projects. I’m committed to accessible, high-quality code, comprehensive tests (Jest and RTL), and shipping features that balance UX, performance, and reliability.…I'm a passionate Full-Stack Web Developer based in Wroclaw, Poland, specializing in building scalable web applications with React, TypeScript, and Node.js. I enjoy turning complex ideas into robust, maintainable software that delivers real value for users. Throughout my career I have collaborated across multi-disciplinary teams in e-commerce, healthcare, education, media, and crypto/NFT projects. I’m committed to accessible, high-quality code, comprehensive tests (Jest and RTL), and shipping features that balance UX, performance, and reliability.

Available to hire

I’m a passionate Full-Stack Web Developer based in Wroclaw, Poland, specializing in building scalable web applications with React, TypeScript, and Node.js. I enjoy turning complex ideas into robust, maintainable software that delivers real value for users.

Throughout my career I have collaborated across multi-disciplinary teams in e-commerce, healthcare, education, media, and crypto/NFT projects. I’m committed to accessible, high-quality code, comprehensive tests (Jest and RTL), and shipping features that balance UX, performance, and reliability.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Ukrainian

Fluent

Russian

Fluent

English

Advanced

Work Experience

Fullstack Developer at Five Systems

April 1, 2024 - May 1, 2026

Health care project aimed at allowing people to schedule appointments with doctors online without calling the care unit. Delivered full customization of the MUI UI kit according to design system; introduced tests for the project (Jest + RTL); implemented secure data access with PostgreSQL-based API; built full customization of MUI UI components according to design system.

Frontend Developer at Maven

August 1, 2022 - April 1, 2024

Big online retail shop based in USA with a vast customer base and large team. Developed numerous pages and features for both customer-facing and admin parts of the platform; conducted accessibility research documented in a handbook with code examples and pros/cons. Tech stack included React, Next.js, TypeScript, Node.js, Jest, RTL, Redux Toolkit, WebSockets, Web Workers, Zustand + Context API.

Fullstack Developer at Trembit

June 1, 2020 - August 1, 2022

Worldwide online gallery and marketplace for artists, where users can show their works and sell them on market with auction or buy it now options. Proposed and developed an auction bidding platform; created complex shipping system for FE and BE with worldwide shipping option; Tech stack: React, TypeScript, Express.js, PostgreSQL, DHL/UPS/USPS APIs, Redux + Thunks, Jest + RTL, Styled Components.