About
Costin-Alexandru
Deonise


I’m Chief Technology Officer at Qflex Technologies, where I lead the technical strategy and delivery of custom AI systems for enterprise clients. I’m also a Parallel and Distributed Computer Systems Master’s student and Associate Lecturer at the University POLITEHNICA of Bucharest, where I’ve taught 1000+ students since 2022.
My research spans scalable automatic differentiation, privacy-preserving machine learning, and LLM systems for structured language understanding. That work spans roles at the Research Institute and Bitdefender, and is published across six peer-reviewed papers. In 2025 I attended the Oxford Machine Learning School at the University of Oxford.

In 2026 I served as national team coach for Romania’s delegation to the International Olympiad in Artificial Intelligence, which placed 4th worldwide with 8/8 medals, the country’s best result in the competition’s history. I also mentor Team AlphaZ, a rookie FIRST Robotics Competition team that became the first Romanian team to win an award at a FIRST World Championship event.
I grew up in Pitești, Argeș county, graduating Colegiul Național “Ion C. Brătianu” in 2020. As a high-school student I was president of the County Council of Students of Argeș and an active member of the European Youth Parliament Romania, before studying Computer Science at POLITEHNICA Bucharest.