Description Marketplace for selling building goods with parts for building machines, main customers was from Sweden, The second part of that project also was written with a mobile app on react native. Mobile app was providing services to customers. From a customer perspective there was a tracking system, qr code for keeping records of goods, user management etc. Responsibilities Technology Stack TypeScript, React Native, Expo, JavaScript, jQuery, Scss

The Cryptocurrency Exchange platform allows users to track the live exchange rate, currency fluctuation, comparative value, and potential growth of various cryptocurrencies and earn money by investing into the chosen cryptocurrencies. The exchange platform uses advanced analytics to build diagrams and tables to show the fluctuations for each currency in real time in order to help users track the current exchange rates and purchase the cryptocurrency at the best possible time. The back-end Node.js and Express application continually aggregates all the data about each registered cryptocurrency and sends it to the client-side application. The client side application, built with React and Redux, was integrated with MetaMask, a Google Chrome plugin, and web3.js to enable users to trade a cryptocurrency.

The Delivery Service Platform is a custom marketplace designed to help carriers earn money by delivering things, and help users save money on ordering deliveries. The platform includes a communication portal where people can browse delivery options, place orders, and talk to delivery companies. Users can specify various data about their package such as the size, weight, and other, while carriers can choose the packages to deliver from the list of user requests. The application automatically calculates the delivery rates and charges the users to transfer the money to a linked account of a delivery company or an individual carrier. The Delivery Service Platform client side was created with React and Redux and consists of the user and carrier components. The platform’s back-end consists of a Node.js proxy server that communicates with the client side and also partially acts like a proxy by sending queries to the PHP-based back-end API.

The multi-tenant ecommerce platform is designed for pharmaceutical distributors and pharmacies. The platform allows pharmacies to create their own online shops and then buy products from distributors connected to the service. Pharmacies can manage available items, customers, and orders, while distributors can create product offers and manage product information and variants. The back office was developed as a modular single-page web application. Its client-side was created in TypeScript using React library and Redux for state management. The backend was developed in Node,js and SQL(knex). Material UI has been used to implement a simple and lightweight user interface for the product.

Custom solution for client that was selling sport goods across different countries like Poland, Great Britain, USA, France, Italy, German, Ukraine. That system was providing delivery tracking and keeping records for goods, changing products and managing users. Keep financial records based on sellings, bots for each connected website, basically chat implementation where admins could write and read messages from admin panel to bots. Charts with downloading or sorting functionality based on annual revenue

Dashboard for USA customers, managing data for schools, universities.

Rollo Ship Manager lets users see, manage, and ship online orders from Amazon, eBay, Etsy, Shopify and other marketplaces. Shippers can schedule package pickups and automatically inform customers of the tracking number for their shipment. Rollo Label Printer is engineered for high-volume direct thermal label printing and is compatible with major shipping platforms including UPS, USPS, FedEx, and others.

Admin panel for inner assessment of the organization users, how they’re proceed in their qualifications and assess other, cooperating with KAM key account manager to discuss salary etc