Front-End Developer with 5+ years in React, Next.js, TypeScript, UI (Tailwind, MUI), testing, CI/CD, and basic back-end knowledge.
Aktualisiert am 23.07.2025
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 23.07.2025
Verfügbar zu: 100%
davon vor Ort: 100%
JavaScript
React
NextJs
TypeScript
Redux
React Query
Webpack
CSS3
HTML5
Jest
Enzyme
Tailwind
Node.js
Ukrainian
Native
English
Intermediate (B1)
German
A1

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

4 Jahre 1 Monat
2021-07 - 2025-07

optimization, implementation of new features, and refactoring

Frontend Engineer ReactJS (Redux Toolkit/React Query) TypeScript CSS Modules ...
Frontend Engineer



ReactJS (Redux Toolkit/React Query) TypeScript CSS Modules Jest Enzyme React Testing Library
7 Monate
2021-01 - 2021-07

Consumer Insights Project

Frontend Engineer ReactJS (Redux/Hooks) TypeScript Ant Design ...
Frontend Engineer

  • Developed a set of interfaces displaying aggregated, impersonal consumer preference data for popular product categories




ReactJS (Redux/Hooks) TypeScript Ant Design CSS Modules Chart.js
Astarios GmbH
2 Jahre 10 Monate
2018-02 - 2020-11

Development of a Large-Scale Military Commercial Project

Frontend Engineer JavaScript HTML5/CSS3 ReactJS (Redux) ...
Frontend Engineer
  • Implemented multi-interface management using WebSockets.
  • Integrated and worked with map services(Leaflet API).
  • Development of an update system
JavaScript HTML5/CSS3 ReactJS (Redux) NextJS Bootstrap Node.js MongoDB
RadiOn LLC
2 Jahre 6 Monate
2015-08 - 2018-01

Web Development & Portal Support

PHP Developer PHP MySQL Git ...
PHP Developer
  • Developed, maintained, and revised web portals using the YII2 framework
  • Created various modules for the billing control panel of the TATET portal
PHP MySQL Git Yii/Yii2 (Template Engine ? TWIG)
TATET.UA
7 Monate
2014-02 - 2014-08

Web Development & Server Maintenance

Full Stack Developer PHP JavaScript jQuery ...
Full Stack Developer
  • Developed and maintained projects of varying complexity using CMS.
  • Modified WordPress modules.
  • Implemented layout coding using Bootstrap.
  • Configured and supported web servers.
PHP JavaScript jQuery CMS WordPress JoomlaOpenCart PrestaShop
SERP.UA
1 Jahr
2013-03 - 2014-02

Project Support & Billing System

PHP Developer PHP JavaScript (jQuery)
PHP Developer
  • Supported current company projects.
  • Finalized the billing system.
  • Customization of firmware for drones


PHP JavaScript (jQuery)
3DRobotics
11 Monate
2012-05 - 2013-03

Provided support for a fleet of 50 computers

System Administrator Kerio Postfix
System Administrator
  • Provided support for a fleet of 50 computers in the office (HelpDesk).
  • Maintained mail servers (Kerio, Postfix).
  • Set up equipment at retail outlets.
Kerio Postfix
Bomond Group

Aus- und Weiterbildung

Aus- und Weiterbildung

4 Jahre 11 Monate
2007-09 - 2012-07

Computer Science and Cybernetics

Bachelor of Computer Science and Cybernetics, National Aviation University (Ukraine)
Bachelor of Computer Science and Cybernetics
National Aviation University (Ukraine)

Position

Position

Front-End Developer

Kompetenzen

Kompetenzen

Top-Skills

JavaScript React NextJs TypeScript Redux React Query Webpack CSS3 HTML5 Jest Enzyme Tailwind Node.js

Produkte / Standards / Erfahrungen / Methoden

Profile

Front-End Developer with over 5 years of experience building fast, modern web applications using React.js, Next.js, and TypeScript. I have a strong background in state management with Redux Toolkit and React Query (TanStack Query), and I enjoy crafting clean, responsive UIs with Tailwind CSS, Material UI, and Ant Design.I'm also experienced with writing tests using Jest and Enzyme, and working with CI/CD pipelines (GitHub Actions, Jenkins). While my main focus is front-end, I?m confident with back-end technologies like Node.js, PHP, MySQL, and MongoDB, as well as server environments (Ubuntu, Nginx, PM2, etc). Looking for an opportunity to join a team as a Middle or Senior Front-End / Full-Stack Developer and contribute to building meaningful and scalable web projects.


TECH STACK

Frontend:

  • JavaScript (ES6+)
  • TypeScript
  • ReactJS
  • Redux Toolkit
  • React Query
  • TanStack Query
  • Hooks
  • Webpack
  • Context API
  • Next.JS
  • jQuery
  • HTML5
  • CSS3, SCSS
  • Tailwind
  • Bootstrap
  • Material UI
  • Ant Design
  • ChartJS
  • Highcharts
  • Jest
  • Enzyme


Backend:

  • Node.js
  • PHP
  • Yii, Yii2
  • Twig
  • MySQL
  • MongoDB
  • REST API
  • WebSockets
  • Git
  • GitHub Actions
  • GitLab
  • CI/CD
  • Jenkins
  • PM2
  • Nginx
  • Postfix


ACHIEVEMENTS

  • Optimized React components and reduced initial page load time by over 30% on a high-traffic commercial project.
  • Successfully migrated a large legacy project from JavaScript to TypeScript, improving code maintainability and developer experience.
  • Introduced CI/CD workflows using GitHub Actions, reducing manual deployment time and errors.
  • Refactored key parts of a billing system, resulting in a 20% performance improvement and easier feature scaling.
  • Developed reusable React components and UI libraries, accelerating development for multiple projects within the team.
  • Played a key role in integrating WebSocket-based real-time updates for a military-oriented multi-interface control system.
  • Took part in setting up and maintaining Linux-based production servers, ensuring system stability and uptime.

Programmiersprachen

JavaScript
Experte
ReactJS
Experte
NextJS
Experte

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

4 Jahre 1 Monat
2021-07 - 2025-07

optimization, implementation of new features, and refactoring

Frontend Engineer ReactJS (Redux Toolkit/React Query) TypeScript CSS Modules ...
Frontend Engineer



ReactJS (Redux Toolkit/React Query) TypeScript CSS Modules Jest Enzyme React Testing Library
7 Monate
2021-01 - 2021-07

Consumer Insights Project

Frontend Engineer ReactJS (Redux/Hooks) TypeScript Ant Design ...
Frontend Engineer

  • Developed a set of interfaces displaying aggregated, impersonal consumer preference data for popular product categories




ReactJS (Redux/Hooks) TypeScript Ant Design CSS Modules Chart.js
Astarios GmbH
2 Jahre 10 Monate
2018-02 - 2020-11

Development of a Large-Scale Military Commercial Project

Frontend Engineer JavaScript HTML5/CSS3 ReactJS (Redux) ...
Frontend Engineer
  • Implemented multi-interface management using WebSockets.
  • Integrated and worked with map services(Leaflet API).
  • Development of an update system
JavaScript HTML5/CSS3 ReactJS (Redux) NextJS Bootstrap Node.js MongoDB
RadiOn LLC
2 Jahre 6 Monate
2015-08 - 2018-01

Web Development & Portal Support

PHP Developer PHP MySQL Git ...
PHP Developer
  • Developed, maintained, and revised web portals using the YII2 framework
  • Created various modules for the billing control panel of the TATET portal
PHP MySQL Git Yii/Yii2 (Template Engine ? TWIG)
TATET.UA
7 Monate
2014-02 - 2014-08

Web Development & Server Maintenance

Full Stack Developer PHP JavaScript jQuery ...
Full Stack Developer
  • Developed and maintained projects of varying complexity using CMS.
  • Modified WordPress modules.
  • Implemented layout coding using Bootstrap.
  • Configured and supported web servers.
PHP JavaScript jQuery CMS WordPress JoomlaOpenCart PrestaShop
SERP.UA
1 Jahr
2013-03 - 2014-02

Project Support & Billing System

PHP Developer PHP JavaScript (jQuery)
PHP Developer
  • Supported current company projects.
  • Finalized the billing system.
  • Customization of firmware for drones


PHP JavaScript (jQuery)
3DRobotics
11 Monate
2012-05 - 2013-03

Provided support for a fleet of 50 computers

System Administrator Kerio Postfix
System Administrator
  • Provided support for a fleet of 50 computers in the office (HelpDesk).
  • Maintained mail servers (Kerio, Postfix).
  • Set up equipment at retail outlets.
Kerio Postfix
Bomond Group

Aus- und Weiterbildung

Aus- und Weiterbildung

4 Jahre 11 Monate
2007-09 - 2012-07

Computer Science and Cybernetics

Bachelor of Computer Science and Cybernetics, National Aviation University (Ukraine)
Bachelor of Computer Science and Cybernetics
National Aviation University (Ukraine)

Position

Position

Front-End Developer

Kompetenzen

Kompetenzen

Top-Skills

JavaScript React NextJs TypeScript Redux React Query Webpack CSS3 HTML5 Jest Enzyme Tailwind Node.js

Produkte / Standards / Erfahrungen / Methoden

Profile

Front-End Developer with over 5 years of experience building fast, modern web applications using React.js, Next.js, and TypeScript. I have a strong background in state management with Redux Toolkit and React Query (TanStack Query), and I enjoy crafting clean, responsive UIs with Tailwind CSS, Material UI, and Ant Design.I'm also experienced with writing tests using Jest and Enzyme, and working with CI/CD pipelines (GitHub Actions, Jenkins). While my main focus is front-end, I?m confident with back-end technologies like Node.js, PHP, MySQL, and MongoDB, as well as server environments (Ubuntu, Nginx, PM2, etc). Looking for an opportunity to join a team as a Middle or Senior Front-End / Full-Stack Developer and contribute to building meaningful and scalable web projects.


TECH STACK

Frontend:

  • JavaScript (ES6+)
  • TypeScript
  • ReactJS
  • Redux Toolkit
  • React Query
  • TanStack Query
  • Hooks
  • Webpack
  • Context API
  • Next.JS
  • jQuery
  • HTML5
  • CSS3, SCSS
  • Tailwind
  • Bootstrap
  • Material UI
  • Ant Design
  • ChartJS
  • Highcharts
  • Jest
  • Enzyme


Backend:

  • Node.js
  • PHP
  • Yii, Yii2
  • Twig
  • MySQL
  • MongoDB
  • REST API
  • WebSockets
  • Git
  • GitHub Actions
  • GitLab
  • CI/CD
  • Jenkins
  • PM2
  • Nginx
  • Postfix


ACHIEVEMENTS

  • Optimized React components and reduced initial page load time by over 30% on a high-traffic commercial project.
  • Successfully migrated a large legacy project from JavaScript to TypeScript, improving code maintainability and developer experience.
  • Introduced CI/CD workflows using GitHub Actions, reducing manual deployment time and errors.
  • Refactored key parts of a billing system, resulting in a 20% performance improvement and easier feature scaling.
  • Developed reusable React components and UI libraries, accelerating development for multiple projects within the team.
  • Played a key role in integrating WebSocket-based real-time updates for a military-oriented multi-interface control system.
  • Took part in setting up and maintaining Linux-based production servers, ensuring system stability and uptime.

Programmiersprachen

JavaScript
Experte
ReactJS
Experte
NextJS
Experte

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