A robust and centralized system for electric vehicle (EV) charging infrastructure. This system aims to provide a seamless and reliable experience for both facility managers (station owners) and customers, facilitating efficient management of charging stations and enhancing user satisfaction through a user-friendly mobile application. PHP/Yii2 web-based admin panel, PHP/Yii2 RESTful API and MySQL. WebSocket implementation to enable real-time communication between the administrative backend, charging stations, and mobile application to provide instant updates on charging status, availability, and payments. A React Native mobile app for iOS and Android to efficiently manage the dispersed and diverse network of charging stations with WebSocket integration to listen for the events in real time. Extended to be used on a POS Terminal as well.

A platform that digitalizes of the coffee supply chain. Helping coffee producers become international exporters. Almacena Origin mobile app has been created to make purchases from farmers on the field. These purchases are synchronized with the Inventory web app, which allows managing different inventory lots. A mobile app supports offline mode. It means that logged-in users can create farmers and collectors and complete purchases without network coverage and when the app is online all data will be synchronized. Also, there is integration with external mobile printer. Another part of the platform is Trade Dashboard web app which is used for creating and completing a fully transparency deal. In this part of the platform, there is a multi-step form that allows the buyer and seller to fill in detailed information for a particular deal. Most of the events during passing through the form notified the participants in the deal via email. There is communication with a third-party API that sends particular events to be written on a Polygon blockchain. React Native application, optimized for iOS and Android on all screen sizes. Communicates with a backend server via REST API. Fully custom UI. Has integration with a mobile printer via Bluetooth connection. Uses Google Maps and Apple Maps, depending on the OS. React web apps, optimized performance. Creating dynamic forms using React hook form. Translating web apps and a mobile app using the react-i18next framework. Using React build-in hooks to implement global simple state management following a redux design pattern.

Digital brochure app that helps users to find promotional articles in big retail stores. It supports logged-in and anonymous promotions browsing and filtering. For logged-in users, a shopping list, shared family shopping list and favorites list are provided as extended functionality. iBeacon and Eddystone beacons installed near the retail stores can trigger user notification for currently ongoing promotions if the user approaches the location with a walking speed. React Native application, optimized for iOS and Android on all screen sizes. Communicates with a backend server via REST API. Fully custom UI. Has integration with iBeacon and Eddystone via React Native <> OS bridge. Uses Google Maps and Apple Maps, depending on the OS. Localized in multiple languages.

Custom-developed SaaS learning management system, using microservice architectural style. The platform offers a learning portal for enterprise companies and their employees. Angular-based app to create and manage content, deliver training and understand the business impact of their learning experiences. AI-powered features provide learners with a unique learning experience through conversations - suggestions, quizzes, teammates evaluation. Custom domains, SSL certificates, two-factor authentication, and third-party integrations. Client-based multi-product subscription panel for billings management.