02/26/2026 updated
100 % available
Freelance Web Developer
Lviv, Ukraine
Ukraine
Computer Sience UniversityHTMLJavaScriptApplication Programming Interfaces (APIs)ArchitectureCascading Style Sheets (CSS)Code ReviewContinuous IntegrationModular DesignPerformance TuningNext.jsResponsive Web DesignTypeScriptWorkflowsEslintReact.js
Languages: JavaScript (ES6+), TypeScript
Frameworks & Libraries: React, Next.js (including SSR/SSG), React Native
State Management: Redux, modern state management patterns (context-based and external stores)
Rendering Strategies: Server-Side Rendering (SSR), Client-Side Rendering (CSR), static optimization strategies
Architecture: Scalable frontend architecture, modular design, feature-based structure, performance optimization
API & Data LayerREST APIs
GraphQL
Apollo Client
Data fetching strategies (client/server boundary handling, cache management, optimistic updates)
Performance & OptimizationCode splitting and lazy loading
Rendering performance optimization
Bundle size optimization
Lighthouse-based improvements
Improving development workflows and build performance
Styling & UICSS architecture patterns
Modern CSS frameworks and UI libraries
Responsive design
Design system collaboration
Tooling & WorkflowGit (feature branching, code reviews, collaborative workflows)
Modern build tools and frontend tooling ecosystems
ESLint / Prettier
CI/CD collaboration
Experience
Professional experience5 - 10 years
Freelancer since2020
Languages
EnglishGoodRussianFluentUkrainianNative speaker
Project history
- Led and mentored frontend engineers while owning technical direction.
- Delivered key AdTech product features end-to-end.
- Improved code quality, performance, and development processes.