10/27/2026 updated
100 % available
Senior Full-Stack Developer | React, Python, Nodejs, Wordpress, Go | 6+ years experience
Rakoshino, Ukraine
Only remote
Uzhhorod National University Bachelor's degree, Computer ScienceAbout me
I am a results-driven Full Stack Engineer with over 6 years of commercial experience building scalable, high-performance web applications. My expertise lies in bridging the gap between complex backend logic and intuitive frontend interfaces.
Software as a ServiceDjangoPython (Programming Language)Node.jsGoogle FirebaseBackendMaterial UIFull Stack DevelopmentEthereumGraphQLFront End Software DevelopmentGolang
✅ Front-End Development:
• Creating responsive, accessible UIs using HTML5, CSS, and Tailwind
• Leveraging WordPress, React, Redux, Zustand, and RTK for dynamic state management
• Applying best practices for component structure, code reusability, and maintainability
• Building dashboards, admin panels, and client-facing interfaces for SaaS platforms
✅ Full Stack & Backend Integration:
• Consuming REST APIs and WebSockets for dynamic data exchange
• Implementing secure user authentication, real-time sync, and notification systems
• Collaborating with backend engineers to ensure optimal data flow and performance
• Deploying and testing integration with Replit, Firebase, and Node.js services
✅ Extension Performance & Security:
• Ensuring lightweight performance and memory efficiency using async operations
• Implementing permission control, secure messaging, and CSP compliance
• Handling sensitive data securely and preventing unauthorized access
• Profiling background scripts and optimizing DOM interactions
✅ UI/UX Excellence:
• Collaborating with design teams to build clean, user-friendly experiences
• Conducting usability tests and user feedback loops for continuous improvement
• Creating reusable design systems using Shadcn, MUI, and Styled Components
• Animating UI with Framer Motion for a modern user feel
✅ Testing & Quality Assurance:
• Writing unit and integration tests with Vitest and Jest
• Conducting code reviews and static code analysis for early bug detection
• Ensuring cross-browser compatibility (Chrome, Firefox) and mobile responsiveness
✅ Collaboration & Agile Workflow:
• Managing project workflows using Git, GitHub, and GitLab
• Leading sprints and maintaining consistent delivery using Agile methodologies
• Providing mentorship to junior devs and contributing to open-source tools
• Communicating effectively with cross-functional teams and stakeholders
Industry Experience
Productivity: Task managers, tab organizers, and developer productivity tools
SaaS Platforms: Admin dashboards, data viewers, and analytics tools ? E-Commerce: Price tracking, wishlist management, and scraper tools ₿ Crypto/Web3: Wallet integrations, transaction monitors, and DAO toolkits
Fitness: Web apps for training logs, habit tracking, and scheduling
Tech Stack & Tools
• Front-End: React, JavaScript, TypeScript, HTML5, CSS, SCSS, Tailwind
• Extensions: Chrome Extension API, Plasmo, extension.js
• Backend: Node.js, Firebase, Replit, REST API, WebSockets
• UI Libraries: Shadcn UI, MUI, Chakra UI, Styled Components
• Dev Tools: Git, GitHub, GitLab, Vercel, Replit
• Testing: Vitest, Jest
Roles & Skills:
⚛️ React / React JS / Front-End Developer
Full Stack Developer (React, Node.js, API, Firebase, Replit)
JavaScript / TypeScript Developer
API Integration / Web Developer / UI Specialist
Let’s talk about your project today!
Experience
Professional experience5 - 10 years
Freelancer since2023
Languages
GermanBasic knowledgeEnglishFluentSpanishBasic knowledgeUkrainianNative speaker
Project history
Zeely.ai Marketing Platform (Top 10 Forbes Ukraine Startup)
Responsibilities and Achievements:
- Achieved 100% Google PageSpeed scores through advanced optimization techniques
- Increased organic traffic by 40% through comprehensive SEO strategies
- Successfully migrated WordPress site from PHP 7.4.3 to 8.3
- Designed migration strategy from WordPress to Next.js
- Coordinated with SEO team of 10 specialists
- Implemented advanced caching mechanisms for enhanced user experience
Technologies: React | Next.js | WordPress | PHP 8.3 | TypeScript | Tailwind CSS | Shadcn UI | RTK | WebSockets | ECharts.js | Plesk | Advanced SEO Tools | Elementor
NFT Marketplace Platform (WIARA-DAAS)
Role: Senior Frontend Developer
Responsibilities and Achievements:
- Implemented cutting-edge Web3 design for blockchain-based NFT marketplace platform
- Established Nx monorepo architecture from scratch with shared libraries
- Set up secure crypto wallet connections and smart contract integrations
- Built comprehensive design system with Material UI components
- Created interactive charts and analytics dashboards using ECharts.js
- Collaborated closely with cross-functional teams for optimal performance
Technologies: React | TypeScript | Nx Monorepo | Material UI | GraphQL | AWS | Web3.js | Ethereum.js | ECharts.js | React Hook Form | Zod | Redux | RTK Query
Tedooo Social Platform (Internal WIARA Project)
Responsibilities and Achievements:
- Architected and implemented advanced Next.js features including SSR, ISR, and SSG
- Created comprehensive design system with Storybook documentation
- Reduced development time by 30% through reusable components
- Maintained 100% Google PageSpeed scores through optimization strategies
- Integrated efficient GraphQL queries and mutations
- Participated in Agile development with sprint planning and code reviews
Technologies: Next.js | Storybook | TypeScript | GraphQL | WordPress | Tailwind CSS | Shadcn UI | SSR | ISR | SSG