DA.

Hey, I'm

Dryha Andrii

I'm a Full Stack Developer with a higher education degree and hands-on experience building web and mobile applications from scratch. I specialize in React.js, React Native (Expo), Next.js, Node.js, and GraphQL, delivering end-to-end solutions including project setup, backend services, frontend interfaces, deployment, and analytics integration. I implement authentication, subscription payments, caching, offline-first logic, multilingual support, SEO optimization, and AI/third-party API integrations, ensuring performant, maintainable, and user-focused applications.

Experience

Fernir (Remote)

Jun 2024 - May 2025

Full-stack developer
  • Developed SPA applications using React and Redux
  • Integrated frontend with backend APIs and databases
  • Improved performance and fixed critical bugs in production systems
  • Built responsive and adaptive user interfaces
  • Participated in feature development and code reviews within the team

Axels (Remote)

Jun 2025 - April 2026

Fullstack Developer (React / React Native)
  • Built web and mobile applications from scratch (React, Next.js, React Native with Expo) - from project setup to production deployment
  • Developed and maintained backend services (Node.js, Express/NestJS, REST API, GraphQL)
  • Implemented authentication systems (Firebase, Supabase, OAuth with Google and Apple) Integrated subscription payments from scratch (full flow: backend, frontend,
  • Configured CI/CD and deployment (Vercel, Expo EAS, App Store, Google Play)
  • Implemented caching and offline-first logic (TanStack Query, IndexedDB, LocalStorage, PowerSync)
  • Built demo/offline modes with client-side data persistence and sync strategies
  • Integrated third-party APIs (finance/crypto data, AI services, ElevenLabs voice synthesis)
  • Automated code review via AI integration in GitHub Actions (PR comments and feedback)
  • Implemented email workflows (verification, password reset, notifications)
  • Developed onboarding flows and guided user tours
  • Built admin panels for user and data management
  • Added analytics and tracking (Hotjar) and integrated Google Ads (web/mobile)
  • Optimized applications for SEO (Google, Bing) and performance
  • Implemented i18n, dark/light themes, responsive and adaptive UI
  • Wrote unit and integration tests (Jest, Vitest, React Testing Library)
  • Developed data export functionality (Excel generation via backend, Redis usage)

Projects

Music Shop

07.2024 — 08.2024

Music Shop - a fullstack web application for selling music-related products. Features include a product showcase with custom categories, shopping cart, and an admin panel for managing products and orders. Built with Next.js (frontend), Express.js (backend), and MongoDB. Fully styled UI.

musicShop

Quick Drop

03.2025 — 04.2025

QuickDrop – a file-sharing web app where users can create a temporary room by ID, upload files, and share them with others without registration. All files and user data are deleted once the room is empty. Built with Next.js, Nest.js, and PostgreSQL.

musicShop

My Tech Steck

Frontend

  • React, React Native (Expo), Next.js, TypeScript, JavaScript
  • Tailwind CSS, SCSS, Material UI, Framer Motion
  • Redux, Zustand, Jotai, TanStack Query
  • i18n, dark/light theme support, responsive/adaptive UI

Backend

  • Node.js, Express.js, Nest.js, GraphQL, REST API
  • PostgreSQL, MongoDB, Redis
  • Authentication: Firebase, Supabase, OAuth (Google, Apple)
  • Payment integration: Stripe, subscription flows

Mobile & Deployment

  • Expo, EAS Update, App Store, Google Play
  • Offline-first, caching (TanStack Query, LocalStorage, IndexedDB, PowerSync)

Dev Tools & Others

  • GitHub Actions, Docker, Vite, ESLint, Jest, Vitest, React Testing Library
  • Analytics: Hotjar, Google Ads
  • Third-party APIs: AI integrations (ElevenLabs, custom AI services), finance & crypto APIs