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👋 Hi, I`m Andrii

Full Stack JavaScript Developer

I build modern, scalable web applications with React, Next.js, TypeScript and Node.js. Focused on clean architecture, performance and great user experience.

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Andrii Mitko - Full Stack JavaScript Developer
Available for work

Technologies & Tools

My Tech Stack

Technologies and tools I use to build modern web applications.

Frontend

React
Next.js
TypeScript
JavaScript
Zustand
React Query
Axios
Formik
HTML5
CSS3

Backend

Node.js
Express
Mongoose
Zod
JWT
Cloudinary

Database

MongoDB

Tools

Git
GitHub
Docker
VS Code
Figma

Portfolio

Featured Projects

A selection of applications I have built using modern web technologies.

WONA BrideFeatured Project

WONA Bride

Commercial full-stack wedding dress e-commerce website developed for a real bridal salon. Features product catalog, shopping cart, Telegram order notifications, admin panel and MongoDB database.

  • Next.js
  • React
  • TypeScript
  • MongoDB
  • Mongoose
  • Zustand
  • Cloudinary
  • Telegram Bot
GitHubLive Demo
Барська ОліяFeatured Project

Барська Олія

Commercial full-stack e-commerce website developed for a real sunflower oil manufacturer. Features product catalog, shopping cart, wholesale pricing, order processing, Telegram notifications, MongoDB database and custom admin panel.

  • Next.js
  • React
  • TypeScript
  • MongoDB
  • Mongoose
  • Zod
  • React Hook Form
  • Cloudinary
  • Telegram Bot
GitHubLive Demo
Harmoniq — Webcrafters-03Featured Project

Harmoniq — Webcrafters-03

Team full-stack pet project built as a monorepo with Next.js, TypeScript, Express.js and MongoDB. Feature owner for Login, Auth State & Route Guards, including authentication flow, protected routes, API integration and backend error handling.

  • Next.js
  • TypeScript
  • React
  • Zustand
  • Formik
  • Yup
  • Express
  • MongoDB
  • JWT
GitHubLive Demo

About Me

Full Stack JavaScript Developer

I build modern, scalable and user-friendly web applications using React, Next.js, TypeScript, Node.js and MongoDB. I enjoy turning ideas into reliable digital products with clean code, responsive design and a great user experience.

  • React & Next.js
  • TypeScript
  • Node.js & Express
  • MongoDB & Mongoose
  • REST API Development
  • Responsive Web Design

Full Stack Development

Building modern web applications with React, Next.js, Node.js and MongoDB.

Backend Development

Creating REST APIs, authentication systems and database solutions.

Clean UI & UX

Developing responsive interfaces with attention to performance and usability.

Experience

2025 – Present

Full Stack JavaScript Developer

Personal Projects

Developing full-stack web applications using React, Next.js, TypeScript, Node.js and MongoDB. Building REST APIs, admin dashboards, authentication systems and responsive user interfaces.

2022 – Present

Electrical Technician

Oncology Hospital

Maintaining critical electrical infrastructure and ensuring uninterrupted operation of emergency power systems.

2019 – 2022

Director

Katranbud

Managed business operations, coordinated teams and developed an internal payroll and reporting system to improve operational efficiency.

Learning

Education

My education and continuous learning journey in software development.

2025 – 2026

GoIT

Full Stack Developer

Completed a comprehensive Full Stack Development program covering React, Next.js, TypeScript, Node.js, Express, MongoDB and modern web development practices.

View Certificate
1991 – 1995

Mariupol Mechanical and Metallurgical College (PSTU)

Electrical Engineering

Studied electrical engineering, automation systems and technical problem solving.

Contact

Let's Build Something Great

I'm open to Full Stack JavaScript Developer opportunities and freelance projects. Let's discuss how I can contribute to your team.