Full Stack Developer

Experience

1. Full Stack Developer

   An e-commerce and POS platform for selling goods, including mobile applications used in retail environments. Technologies React, React Native, Node.js, NestJS, TypeScript, HTML, CSS, SASS, ZPL, WebSockets Responsibilities Developed Cordova plugins for the iOS mobile app. Integrated peripheral devices such as scales and label printers. Worked on device communication and data exchange. Supported printing workflows using ZPL. Collaborated on frontend features and mobile app logic.

2. Full Stack Developer

   A fintech platform for working with large volumes of financial data. The product focuses on performance, real-time data processing, reporting, and advanced data visualization Technologies React, Next.js, Node.js, TypeScript, Material UI, Recharts, HTML, CSS, SASS, WebSockets Responsibilities Implemented real-time Excel file editing with upload and save options. Built and improved dashboards and data views. Worked with charts and financial data visualization. Focused on performance and data handling at scale.

3. Full Stack Developer

   Mobile music streaming and merchandising application with built-in administrative features for billing, order management, and customer support. Technologies Node.js, React, TypeScript, Next.js, REST APIs, PostgreSQL, Redis, Firebase, Keycloak Responsibilities Developed dynamic lists and data views with filtering and search. Integrated REST APIs for user data, orders, and media content management. Implemented secure data persistence and session handling for mobile users.

4. Full Stack Developer

   Online platform for wine taste testing with the option to purchase kits. Based on the results, users received personalized wine recommendations. Technologies Node.js, React, Next.js, NestJS, MongoDB, TypeScript, MySQL Responsibilities Implemented Node.js backend logic for order processing and billing workflows. Implemented secure payments in compliance with PCI DSS standards. Developed NGXS store from scratch for state management. Ensured code quality with unit tests using Jest. Built Node.js APIs for subscription management and order fulfillment. Used Redis and MySQL to optimize backend data storage and caching.

5. Full Stack Developer

   Web application using a neural network to predict global events and visualize interconnections between them. Technologies NestJS, React, TypeScript, Redux, Leaflet, MongoDB Responsibilities Developed a dashboard for real-time data visualization. Integrated MongoDB database schemas to securely store user profiles and test results. Created RESTful APIs with Node.js and NestJS to serve analytical data. Implemented pagination to handle large data responses efficiently.