My first full-time job was at ESET, a well-known Slovak company recognized for its high-quality antivirus software. I spent ten years there, primarily working as a C++ developer. During this time, I worked on many projects, some of which are listed below.

• Developed a push notification system that was built upon my MQTT protocol implementation, including the client-side.
• Maintained integration of an antispam engine into the ESET Smart Security product.
• Created a DNS tunnel module capable of transferring data over DNS in situations where other network protocols were restricted.
• Developed a web-based information system for handling incoming antispam statistics, including processing, storing, filtering, and displaying.
• Implemented a standalone application for creating live CD/DVD or USB systems, known as ESET SysRescue Live.
• Developed a standalone application for activating preinstalled ESET products.
• Maintained the installer for ESET products.

Tech stack: C++, Python, MQTT, HTTP, CSS, SQL, QT, MFC, MSI, WiX