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I am a Middle Full-Stack Developer with over 3 years of commercial experience building real-world web products using React and Node.js ecosystems. I have developed an e-commerce platform with a microservices architecture, including product management, user roles, and scalable backend services. I also worked on an online trailer rental marketplace with complex database queries and production-ready deployment infrastructure. In addition, I built a real-time messenger with instant messaging via WebSockets, as well as an analytics dashboard with KPI tracking, charts, and reporting features. I would be glad to bring my experience in building scalable and user-focused applications to contribute to your team and product.…I am a Middle Full-Stack Developer with over 3 years of commercial experience building real-world web products using React and Node.js ecosystems. I have developed an e-commerce platform with a microservices architecture, including product management, user roles, and scalable backend services. I also worked on an online trailer rental marketplace with complex database queries and production-ready deployment infrastructure. In addition, I built a real-time messenger with instant messaging via WebSockets, as well as an analytics dashboard with KPI tracking, charts, and reporting features. I would be glad to bring my experience in building scalable and user-focused applications to contribute to your team and product.

Denis Yatsyk

Full Stack Developer, Front-End Developer, Back-End Developer, +2

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I am a Middle Full-Stack Developer with over 3 years of commercial experience building real-world web products using React and Node.js ecosystems. I have developed an e-commerce platform with a microservices architecture, including product management, user roles, and scalable backend services. I also worked on an online trailer rental marketplace with complex database queries and production-ready deployment infrastructure. In addition, I built a real-time messenger with instant messaging via WebSockets, as well as an analytics dashboard with KPI tracking, charts, and reporting features. I would be glad to bring my experience in building scalable and user-focused applications to contribute to your team and product.…I am a Middle Full-Stack Developer with over 3 years of commercial experience building real-world web products using React and Node.js ecosystems. I have developed an e-commerce platform with a microservices architecture, including product management, user roles, and scalable backend services. I also worked on an online trailer rental marketplace with complex database queries and production-ready deployment infrastructure. In addition, I built a real-time messenger with instant messaging via WebSockets, as well as an analytics dashboard with KPI tracking, charts, and reporting features. I would be glad to bring my experience in building scalable and user-focused applications to contribute to your team and product.

Available to hire

I am a Middle Full-Stack Developer with over 3 years of commercial experience building real-world web products using React and Node.js ecosystems. I have developed an e-commerce platform with a microservices architecture, including product management, user roles, and scalable backend services. I also worked on an online trailer rental marketplace with complex database queries and production-ready deployment infrastructure. In addition, I built a real-time messenger with instant messaging via WebSockets, as well as an analytics dashboard with KPI tracking, charts, and reporting features. I would be glad to bring my experience in building scalable and user-focused applications to contribute to your team and product.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Ukrainian

Fluent

English

Advanced

Russian

Fluent

Work Experience

Junior Front-end Developer at BrightByte

April 5, 2023 - August 30, 2023

Built interactive analytics dashboards with charts, tables, and KPI metrics using React and TypeScript. Implemented internationalization to support multiple languages across the app. Built a secure authentication system including user registration, login, and password recovery via email using Resend. Implemented OAuth authentication with Google and GitHub, providing users with multiple sign-in options. Implemented real-time communication in an online messenger using WebSockets. Wrote unit and integration tests and contributed to bug fixes and UI stability.

Junior Back-end Developer at NextEdge

September 4, 2023 - February 29, 2024

Integrated AWS services to store and serve user-uploaded images efficiently (S3-based storage). Implemented a Redis caching layer to improve backend performance and reduce database load. Developed an AI-assisted feature that collects user data and generates personalized recommendations.

Middle Full-stack Developer at Lavanda Group

March 10, 2024 - September 27, 2024

Created an e-commerce application using a microservices architecture with Express.js, implementing Docker Compose to automate the build and deployment process. Used Prisma ORM to manage database operations and implement complex queries for an online trailer rental marketplace. Configured Nginx as a reverse proxy for routing, load handling, and production traffic management. Deployed applications across Vercel and Render. Set up production delivery pipeline with Cloudflare for performance optimization and global content delivery.

Middle Full-stack Developer at CodeNova

October 7, 2024 - May 16, 2026

Migrated applications from no-code platform workflows to a fully local development environment and custom codebase. Connected the ChatGPT API to the frontend to answer user questions. Integrated RabbitMQ for handling background jobs and asynchronous processing between services. Designed and implemented a role-based access control (RBAC) system to manage permissions across the platform. Implemented offline mode using IndexedDB. Developed an admin dashboard for an e-commerce platform to track product performance metrics such as daily and weekly sales, views, and user engagement.