Zsolt Rácz

TAM Autohof is a network of petrol stations in the Czech Republic and Slovakia.

I was in charge of the solution design and implementation of their website. Eventually, an e-shop was added to the website. It was integrated with the company's customer reward system and handled orders from thousands of registered members.

The site is built on PHP and Symfony; WordPress handles the CMS functionality and administration interface.

OnlineFit is a comprehensive, multilingual web application that helps fitness center owners manage their businesses. Fitness owners can generate their websites and let their customers easily sign up for training through a calendar.

As the full-stack engineer, I designed the entire architecture of the solution and provided operations and support for over a year.

Main features of the system:
Booking management for group training, online payments, invoicing, stock management, website creator, support for multiple clients in different locations, and built-in business analytics tools.

Emplaya is a tool for managing the workforce of mid-to-large size companies. Its main features include shift, vacation, and sick leave planning. It consists of a desktop and a mobile application. I participated as the lead developer of the microservice-based API providing a back end for the desktop and mobile application. My roles included providing maintenance, implementing new features to the back end, documenting processes, and internal API documentation.

For the Beyond mobile application, I designed and implemented a sophisticated back-end architecture to manage the app's core functionality, which allows users to record and schedule the release of audio and video content for future dates. The challenge was building a solution that could handle large media files, ensure long-term storage, and stream them efficiently using adaptive bitrate technology.

Except for back-end responsibilities, I also supported the front-end development team, providing guidance and troubleshooting across the iOS and Android platforms to ensure a cohesive and efficient user experience. From advising on media handling to API design, I played a critical role in bridging the gap between the back-end services and the mobile app’s functionality.

I worked as a front-end developer on MAIA, an AI assistant for a telecommunications company. The tool, built with Node.js, TypeScript, and Angular, allowed call center and shop agents to quickly retrieve information from a knowledge base. I played a key role in technical analysis and development, including analyzing dependencies, documenting API calls, and designing a data storage solution for an analytics tool (data warehouse). Additionally, I wrote all user stories, ensuring a structured development process.