Andreas Antonopoulos is a seasoned technology strategist, author, and entrepreneur with over two decades advising organizations on emerging technologies and applied open-source systems. A long-time pioneer who recognized the Internet’s potential in 1988, he has launched five companies, led large security and research teams, and served as CTO and partner across consulting firms. He is best known for authoring the authoritative "Mastering" series on Bitcoin, Ethereum and the Lightning Network and for hands-on open-source contributions to seminal projects like 386BSD and early Linux. Combining deep academic training in distributed systems from UCL with practical experience in security, networking and back-end development, he translates complex technical topics into clear, actionable guidance. A world-class public speaker and teacher with 300+ engagements and 175+ published articles, Andreas brings unexpected connections across hardware, protocol design and socio-technical issues like free speech and open government. He also codes as a hobbyist and holds a pilot’s license, reflecting a curious, multidisciplinary approach to problem solving.
14 years of coding experience
4 years of employment as a software developer
Research Fellow Computer Science Distributed Systems Security, Research Fellow Computer Science Distributed Systems Security at University College London
Mastering Ethereum, by Andreas M. Antonopoulos, Gavin Wood
Role in this project:
Technical Writer
Contributions:942 commits, 484 PRs, 651 pushes in 3 years 8 months
Contributions summary:Andreas's contributions primarily focused on editing and adding content to the documentation of the "ethereumbook" repository. They modified the author biographies, copyright information, and other supporting files such as the table of contents and index. Moreover, they added and updated code examples and provided relevant context, expanding on the technical aspects of the book's content.
Mastering Bitcoin 3rd Edition - Programming the Open Blockchain
Role in this project:
Back-end Developer & Technical Writer
Contributions:4 releases, 821 commits, 125 PRs in 9 years 5 months
Contributions summary:Andreas contributed code examples demonstrating Bitcoin-related concepts such as proof-of-work, key and address generation, and UTXO selection. They also added examples of interacting with Bitcoin Core via RPC, including block and transaction retrieval. Further contributions included code examples using libbitcoin and other libraries, demonstrating a range of Bitcoin functionalities.
masteringblockchainbitcoinbitcoin-apioreilly
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Andreas Antonopoulos - Owner at Andreas M. Antonopoulos