Thodoris Kalogeropoulos

Background

About Thodoris Kalogeropoulos

Created the backend architecture for real-time AI voice agents that became the foundation of Kalimera.ai, leading to strategic partnership formation and a new business entity. Started as a Backend Engineer delivering 6 enterprise solutions with 100% uptime (including 500+ days continuous operation for NRG), then advanced to R&D and Lead roles in under 2 years. Architected a sophisticated real-time voice interaction system from scratch using C# and.NET, featuring bidirectional PBX communication, concurrent STT/LLM/TTS processing, and sub-second response times. The system handles highly concurrent connections with human-like conversational capabilities including interruption handling and dynamic tool execution. Currently working as a Backend Software Engineer at Code Create for Kaizen Gaming, applying my expertise in high-performance systems and enterprise architecture to deliver scalable solutions. Previously led the transformation of innovative AI voice technology into enterprise-grade products while coordinating 10+ cross-functional team members across engineering, telecom, and business units. Throughout my career, I've maintained a focus on efficiency, reliability, and clean architecture. Built high-performance APIs processing thousands of requests per second with 99.99% reliability, implemented ETL solutions with 100% accuracy, and reduced system load times by 99% through strategic optimizations.