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Hello, I'm

Tymoshenko Dmytro

Frontend Developer (React.js, Next.js, TypeScript)

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About Me

I'm a frontend developer focused on building clean, performant web applications with React and Next.js.

With experience in TypeScript, Tailwind CSS, and modern tooling, I create interfaces that are both functional and visually refined.

2+Years of Experience

Experience

Frontend Developer

T+ Market (E-Commerce Platform)

Dec 2024 – Present
  • •Designed and implemented a multi-level product filtering system with nested sub-filters using URL params for state persistence (SSR-compatible).
  • •Built and maintained a Next.js component library integrating 5+ REST APIs using Axios and custom hooks.
  • •Refactored 15+ legacy components reducing code duplication by ~25% and implemented Jest/RTL unit tests.
Next.jsTypeScriptSSRURL StateJest/RTL

Frontend Developer

AI SaaS Product (NDA, Freelance)

Feb 2024 – Nov 2024
  • •Took AI-powered internal interfaces from zero to production using Next.js App Router, TypeScript, and Zustand.
  • •Improved Lighthouse score from 65 → 88 and reduced LCP by 40% through lazy loading and code splitting.
  • •Built a production integration with a GrammyJS Telegram bot for automated lead delivery.
ReactZustandApp RouterPerformance OptimizationTelegram API

Frontend Developer

Baza

Aug 2023 – Feb 2024
  • •Delivered 20+ pixel-perfect components from Figma with complex UI interactions and cross-browser compatibility.
  • •Ran regular code reviews for a 3-developer team, enforcing semantic HTML5 and a11y standards.
TypeScriptFigmaUI/UXCode Reviewa11y

Skills & Technologies

Frontend

React.jsNext.jsTypeScriptJavaScriptHTML/CSS

Styling

Tailwind CSSSASSCSS ModulesStyled Components

Tools

GitGitHubVS CodeFigmaPostman

Other

REST APINode.jsnpm/pnpmWebpack/Vite

Projects

Дмитро Тютюн — Official Website

2026

Official website for a Ukrainian stand-up comedian and blogger (200K+ YouTube subscribers). Features tour schedule with tickets, video section, merch store, and social links. Styled with branded animations, film grain effect, and custom sketch borders.

Next.jsTypeScriptTailwind CSSResponsive DesignUkrainian i18n
Live Demo

BullyChat

2026

AI-powered chat application supporting Groq LLM provider with markdown rendering and math expressions.

Next.jsTypeScriptAI SDKZustandTailwind CSS
GitHubLive Demo

Frontend Error Observatory

2026

Error monitoring dashboard for frontend applications with real-time data, JSON viewer, dark mode, and responsive UI.

Next.jsTypeScriptRadix UITanStack QueryZustand
GitHubLive Demo

СТО на Дорожній

2026

Business website for a car service station with service catalog, pricing, FAQ, and contact form. Ukrainian localization.

Next.jsTypeScriptTailwind CSS
Live Demo

Contrlve Game

2026

A fan web game based on a popular Ukrainian show. Features turn-based logic, complex state transitions, and frame-accurate animations.

Next.jsTypeScriptReactState ManagementCSS Animations
GitHubLive Demo

Get in Touch

Have a project in mind or want to collaborate? Feel free to reach out.

Emailtymoshenko.d.o@tuta.io
GitHubkenmaqqe
LinkedInDmytro Tymoshenko
Telegram@kenmaqqe

© 2026 Dmytro Tymoshenko. All rights reserved.