10/14/2026 updated
100 % available
Full-Stack Web & Mobile Developer | React, React Native, Node.js, Python
Ivano-Frankivsk, Ukraine
Only remote
Master's Degree, Computer ScienceAbout me
Full-stack developer with 7+ years of experience. Strong in React, React Native, Next.js, TypeScript and Node.js, Python, SQL/NoSQL, Firebase, API integration, real-time features, scalable UI, testing and performance optimization across communication, workforce management and consumer applications.
GitHub ActionsJavaScriptWeb DevelopmentDjangoEnzymesGitHubPython (Programming Language)PostgreSQLMongoDBMySQLNode.jsNumPyRedisNext.jsSQLite
React & React Native Development
Extensive experience building responsive web applications with React and Next.js as well as cross-platform mobile interfaces with React Native (CLI, Expo), including reusable components, clear UI architecture and TypeScript/JavaScript.
Backend & API Integration
Strong proficiency in Node.js, Express.js and NestJS for building and integrating REST APIs and third-party platforms, supporting end-to-end product workflows and real-time features.
Python & Data Processing
Solid knowledge of Python 3 with frameworks such as FastAPI, Django, Flask and Pydantic, as well as data tools like Pandas, NumPy and SQLAlchemy for ETL, scripting, workflow automation and REST API development.
State Management & Architecture
Proficiency in Redux, Redux Toolkit, Redux Saga, Redux Thunk and React Query for managing application state following MVC, MVP and MVVM architectural patterns.
Frontend Technologies
Comprehensive knowledge of JavaScript, TypeScript, HTML5, CSS3, MUI, Bootstrap and Sass/SCSS for building scalable and maintainable user interfaces.
Database & Cloud Services
Experience with PostgreSQL, MySQL, SQLite, MongoDB, Redis, Firebase, Cloud Firestore and Firebase Realtime Database for data storage and cloud-based solutions.
Testing & Performance Optimization
Hands-on experience with Jest and Enzyme for component-level testing, as well as performance improvements through memoization, lazy loading, code splitting and bundle optimization.
Mobile Features
Delivery of mobile app functionality including chat/messaging, payments, real-time updates, location-based features, audio/video calls, maps/GPS and media features.
Quality & Tooling
Proficiency with Git for version control, responsive design principles, code splitting and performance tuning to ensure high-quality deliverables.
Extensive experience building responsive web applications with React and Next.js as well as cross-platform mobile interfaces with React Native (CLI, Expo), including reusable components, clear UI architecture and TypeScript/JavaScript.
Backend & API Integration
Strong proficiency in Node.js, Express.js and NestJS for building and integrating REST APIs and third-party platforms, supporting end-to-end product workflows and real-time features.
Python & Data Processing
Solid knowledge of Python 3 with frameworks such as FastAPI, Django, Flask and Pydantic, as well as data tools like Pandas, NumPy and SQLAlchemy for ETL, scripting, workflow automation and REST API development.
State Management & Architecture
Proficiency in Redux, Redux Toolkit, Redux Saga, Redux Thunk and React Query for managing application state following MVC, MVP and MVVM architectural patterns.
Frontend Technologies
Comprehensive knowledge of JavaScript, TypeScript, HTML5, CSS3, MUI, Bootstrap and Sass/SCSS for building scalable and maintainable user interfaces.
Database & Cloud Services
Experience with PostgreSQL, MySQL, SQLite, MongoDB, Redis, Firebase, Cloud Firestore and Firebase Realtime Database for data storage and cloud-based solutions.
Testing & Performance Optimization
Hands-on experience with Jest and Enzyme for component-level testing, as well as performance improvements through memoization, lazy loading, code splitting and bundle optimization.
Mobile Features
Delivery of mobile app functionality including chat/messaging, payments, real-time updates, location-based features, audio/video calls, maps/GPS and media features.
Quality & Tooling
Proficiency with Git for version control, responsive design principles, code splitting and performance tuning to ensure high-quality deliverables.
Experience
Professional experience5 - 10 years
Freelancer since2022
Languages
EnglishFluent
Project history
Designed an automation workflow to collect data from external APIs, validate and normalize incoming records, synchronize data with PostgreSQL and produce structured processing logs. Added error handling and retry-friendly processing for reliability.
Developed reusable UI for conversations, team collaboration and productivity workflows, including API-driven data handling and responsive layouts for communication-focused interfaces.
Designed a Python-based reporting backend to process datasets, run aggregation queries and expose JSON summaries to a React dashboard. Structured the data pipeline around filtering, pagination and export-ready business metrics.