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Oles Vykhovanok
Senior Full Stack JavaScript Developer (React, Node.js)
New to Contra
Oles is ready for their next project!
I developed a modern healthcare platform that helps care providers monitor patients and improve safety. The system focuses on fall prevention, silent nurse call functionality, and real-time sensor data analysis.
The frontend is built with Next.js, delivering a fast, responsive, and user-friendly interface. The backend uses NestJS to provide a scalable and well-structured API for handling data processing, authentication, and system logic.
The platform translates sensor data into actionable insights for healthcare professionals, helping them respond faster and provide better patient care.
This project demonstrates my ability to build scalable full-stack applications with a clean architecture and modern technologies.
Tech Stack: Next.js, NestJS, TypeScript, REST API.
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I developed a mobile platform that helps users book moving and delivery services quickly and conveniently. The app allows customers to schedule pickups, track deliveries, and manage moving tasks directly from their mobile devices.
The mobile application is built with React Native CLI, providing a high-performance cross-platform experience. The backend infrastructure uses PostgreSQL for reliable data storage and efficient handling of orders, users, and logistics data.
The platform enables users to create requests, track movers in real time, and manage delivery details through a clean and intuitive interface.
This project demonstrates my ability to build scalable mobile applications and integrate them with robust backend data systems.
Tech Stack: React Native CLI, PostgreSQL, Node.js, REST API.
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I developed a full-stack CRM platform that helps teams manage leads, track sales pipelines, and organize client communication in one centralized system. The frontend is built with React, providing a responsive interface with reusable components and smooth navigation.
The backend uses Node.js and Express to deliver a structured REST API that handles authentication, business logic, and communication with the database. PostgreSQL is used for reliable relational data storage and efficient querying.
The project demonstrates my ability to build scalable full-stack applications and design clean, maintainable architectures.
Tech Stack: React, Node.js, Express, PostgreSQL, REST API, JWT, Axios.
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I developed a mobile platform that connects families with trusted babysitters and childcare providers. The app helps parents easily find, book, and manage childcare services in a convenient and secure way.
The mobile application is built with React Native and Expo, delivering a smooth cross-platform experience for iOS and Android users. Firebase powers the backend infrastructure, handling authentication, real-time data, and cloud services.
The platform allows users to create profiles, browse available sitters, manage bookings, and communicate directly within the app.
This project demonstrates my ability to build scalable mobile applications with modern cross-platform technologies.
Tech Stack: React Native, Expo.io, Firebase.
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