Денис

DENYS TRETIAKOV
FRONTEND DEVELOPER (REACT)
Frontend Developer with ~3 years of experience, specializing in React-based applications. Worked on a
large social network project using React and Redux, built responsive UI components, and implemented
HTML email templates with cross-client support. Also have hands-on experience with Next.js and basic
SSR concepts. Focused on clean code, maintainable architecture, and practical product development.
TECH STACK
Frontend
React (Hooks, functional components)
JavaScript (ES6+)
Redux-Saga
Redux Toolkit
Basic TypeScript
HTML5, CSS3 (Flexbox, Grid)
Backend / APIs
Next.js basics
Understanding of SSR
Tools
Git (GitHub)
npm
Chrome DevTools
WORK EXPERIENCE
Frontend Developer
Vilmate
Oct 2024 – Mar 2025
Developed and maintained a charity fundraising web application using React and Redux
Redesigned existing pages and improved UI/UX of the platform
Supported and maintained server-side rendering (SSR) using Next.js
Implemented state management with Redux and Redux-Saga
Integrated frontend with backend APIs and collaborated closely with backend developers
Nov 2022 – Oct 2024
Developed and maintained a social environmental web application using React
Implemented complex and validated forms using Formik
Worked with large multi-step forms and client-side validation logic
Supported and maintained integration with web components
Oct 2021 – Nov 2022
Developed responsive HTML email templates using a specialized email framework
Ensured cross-client and cross-platform compatibility (desktop, web, mobile email clients)
Tested and validated layouts across multiple email providers and platforms
Adapted templates to meet campaign and branding requirements
LANGUAGES
Ukrainian, Russian — Native
English — Reading technical documentation, basic communication
CONTACTS
Email: [open contact info](look above in the "contact info" section)
GitHub: GitHub
LinkedIn: LinkedIn
Telegram: Telegram