

Joe Leo
CEO, Def Method and Co-author, The Well-Grounded Rubyist
New York City, New York, United States
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Joe Leo is the founder and owner of Def Method, a New York City-based software consultancy dedicated to building high-quality, thoughtfully crafted software. With over 20 years of experience as a software developer and engineering leader, he has helped shape and mentor teams across industries, always with a deep focus on software craft and building beautiful, maintainable code.
Joe is co-author of *The Well-Grounded Rubyist* and a respected voice in the Ruby community, frequently sharing insights on engineering leadership, AI-driven development, and sustainable software practices. Joe is committed to ensuring that automation serves as a tool for augmenting human creativity, improving collaboration, and sustaining the craft of software engineering.
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