I work on blockchain security, DApps, Besu PoA/QBFT networks, and hands-on Web3 education.
Researcher and educator specializing in blockchain security, distributed systems, and decentralized applications. I design and develop DApps, build and operate Hyperledger Besu (QBFT) networks with Blockscout and Faucet integration, and transform these systems into hands-on learning environments for students and professionals.
I teach at the University of West Attica (UniWA) and the University of Malta, and as a Senior Researcher I contribute to EU and Greek National projects. I am also co-author of the first open-access Greek textbook on blockchain (Kallipos editions).
Horizon Europe program whose primary goal is to significantly ease the complexity and reduce the effort of building correct and efficient heterogeneous swarms.
LIFE EU program that assists public authorities in transforming the energy context of the European regions in order to facilitate a rapid transition to a decarbonized and sustainable economy.
Horizon EU project examining the impact and role of first responders across the full emergency lifecycle—planning, logistics, maintenance/diagnostics, training, and management—to strengthen the EU’s ability to respond to emergencies.
ESPA (Research – Innovate) project aiming to develop a distributed architecture, both in software and hardware, to secure supply chain traceability processes and data using blockchain, smart contracts, and embedded security mechanisms.
Gamified Web3 DApp for blockchain learning with quizzes and token rewards.
Fantasy League management with SBT identity, multi‑team trades, and voting.
Private Hyperledger Besu (QBFT) Ethereum network for research on consensus, privacy, and operational resilience.
Hands-on labs on consensus mechanics, common attack patterns, and DeFi incident simulations inspired by the bZx oracle/flash-loan exploits.
Curated collection of resources and learning materials for Web3, blockchain, and distributed systems.
A few popular/representative publications are listed here. For the full list, please see my CV or Google Scholar.
Introductory course focused on cybersecurity threats and blockchain (including DORA regulation), with hands-on lab sessions.
Development and security of Web 3.0 DApps.
A fundamental introduction to cybersecurity and other aspects to instil assurances in DLT-related activities and compatibility with EU regulations (e.g., DORA).
