Simo Leone is a Helsinki-based freelance software engineer with 26 years of experience specializing in infrastructure, operations, payment systems, and shipping high-quality products. He blends hands-on engineering with occasional team-building, helping startups and mid-size teams solve reliability and payment integration challenges. Currently operating both as an independent consultant and a senior engineer at Hummingbird, he focuses on pragmatic, production-ready solutions that scale. A University of Illinois CS graduate, Simo’s long career suggests deep institutional knowledge of legacy systems as well as modern cloud practices, making him especially effective at bridging old and new stacks.
A world clock to use on an inforad or second display
Contributions:1 review, 1 PR, 12 pushes in 2 years 10 months
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Simo Leone - Freelance Software Engineer at Hummingbird