Senior Full-Stack developer
Full-Stack Engineer
Available for hire
Years of
experience
7+ years
Experience
level
Senior
Available
for
Full-time, Part-time, Contract, Freelance
Available from
07 Nov 2026
Full-stack developer with 7+ years of experience building responsive web applications and cross-platform mobile products. Strong in React, React Native, Next.js, JavaScript/TypeScript and Node.js, with additional Python, SQL/NoSQL and Firebase knowledge. Experienced in API integration, real-time features, scalable UI architecture, testing and performance optimization across communication, workforce management and consumer applications.
Skills
JavaScript
CSS
TypeScript
Scrum
React.js
Next.js
React Native
NestJS
Node.js
Express.js
Tailwind CSS
Web sockets
Vercel
GitLab
Redux.js
SASS
Strapi.js
NoSQL
REST
JIRA
Supabase
Swagger
JSON
Jest
Vite.js
Socket.io
Zustand
SCSS
Material UI
Responsive design
MERN stack
MongoDB
PostgreSQL
MySQL
Firebase
SQLite
Firestore
Git
GitHub
Figma
Stripe
OAuth
E-commerce
HTML
Python
Flask
Django
FastAPI
NumPy
Pandas
Employment History
Full-Stack Web & Mobile Developer at
Freelance
Current
2022
-
Now
• Build responsive web experiences with React and Next.js and mobile interfaces with React Native, using reusable components, clear UI architecture and TypeScript/JavaScript.
• Implement and integrate REST APIs, backend services and third-party platforms using Node.js, Express.js and NestJS to support end-to-end product workflows.
• Deliver app functionality for chat/messaging, payments, real-time updates, location-based features and audio/video-centric experiences, depending on product needs.
• Work with SQL and NoSQL data stores and Firebase services; apply Python scripting to data preparation and lightweight automation tasks.
• Improve maintainability and speed through component reuse, React Query/Redux state patterns, lazy loading, code splitting and automated testing with Jest/Enzyme
React / React Native Developer at
Lisoft
2019
-
2022
• Developed SPA interfaces and cross-platform mobile features with React and React Native, focusing on usability, responsive layouts and consistent behavior.
• Connected front-end applications to external services and APIs, managing async data and application state with Redux, Redux Toolkit, Saga/Thunk and React Query.
• Built reusable UI elements with MUI, Bootstrap and Sass, maintaining common patterns across screens and application modules.
• Wrote and maintained component-level tests with Jest and Enzyme; applied performance improvements through memoization, lazy loading and bundle optimization.
Education
Master’s Degree, Computer Science at
Lviv Polytechnic National University
2011
-
2016