Michael Arnaldi is a seasoned technology founder and CEO with nine years of leadership experience building fintech and developer-focused products from inception to market. Based in London, he combines hands-on backend engineering—evidenced by substantive contributions to the popular ZIO Scala library fixing core concurrency, STM, and scheduling issues—with strategic roles as CEO, CTO, and co-founder across startups and consultancies. He has led R&D and digital strategy teams, guided architecture as a non-exec CTO, and scaled blockchain and fintech initiatives, bringing both product vision and deep systems-level expertise. A former math and computer science student from Università di Pisa who left academia for applied innovation, he’s as comfortable debugging fiber contexts as he is shaping company strategy.
9 years of coding experience
9 years of employment as a software developer
Dropout Mathematics and Computer Science, Dropout Mathematics and Computer Science at Università di Pisa
ZIO — A type-safe, composable library for async and concurrent programming in Scala
Role in this project:
Back-end Developer
Contributions:8 commits, 8 PRs, 4 comments in 2 years 5 months
Contributions summary:Michael primarily focused on maintaining and improving the ZIO library, addressing critical issues within its core functionality. Their contributions include fixing bugs related to `Schedule`, `Chunk` manipulation, and the behavior of `Supervisor` and `FiberContext`. They also worked on STM-related improvements, specifically addressing failures and unexpected errors in the driver. The user's changes demonstrate a deep understanding of concurrent programming and effect-based systems.
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Michael Arnaldi - Chief Executive Officer at Effectful Technologies