Alexandros Roussos is a finance-focused counsel at Sidley Austin in New York with eight years of legal experience across global finance, CMBS, and banking & finance. He progressed from trainee roles in Athens to senior managing associate and now counsel, combining cross-jurisdictional training in Greece, France and an LL.M. from Columbia. Known for pragmatic deal-side expertise, he regularly navigates complex international financings and regulatory issues for institutional clients. Beyond law, he contributes to open-source software—helping improve the web3j Java library for Ethereum integration—which highlights an uncommon blend of legal acumen and technical curiosity. Fluent in international practice and comfortable with technical documentation and code-level problem solving, he brings a detail-oriented, multidisciplinary approach to transactions and risk management. Clients and teams benefit from his European legal foundations paired with New York finance-market experience.
7 years of coding experience
10 years of employment as a software developer
Bachelor of Laws (LL.B.) Law, Bachelor of Laws (LL.B.) Law at Ethnikon kai Kapodistriakon Panepistimion Athinon
Master of Laws (LL.M.) Law, Master of Laws (LL.M.) Law at Columbia Law School
Master’s Degree International Business Law (Master 2 Pro Droit International Privé et du Commerce International), Master’s Degree International Business Law (Master 2 Pro Droit International Privé et du Commerce International) at University of Paris I: Panthéon-Sorbonne
Lightweight Java and Android library for integration with Ethereum clients
Role in this project:
Back-end Developer
Contributions:6 releases, 12 reviews, 84 commits in 2 years 10 months
Contributions summary:Alexandros primarily contributed to the web3j library, focusing on improvements and bug fixes related to Ethereum integration. They changed the README file to reflect updated documentation, refactored the `ReadonlyTransactionManager` and implemented the `sendCall` function. The user also addressed issues related to exception handling and made modifications to the core methods of the library. Furthermore, the user added a test and fixed broken links.
Contributions:89 pushes, 42 branches in 1 year 6 months
ethereumblockchainweb3command-line-toolsweb3j
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