David Scott Bernstein is the author of the book Beyond Legacy Code: Nine Practices to Extend the Life (and Value) of Your Software. It’s an insider’s view of the software industry drawn from his four decades of hands-on experience as a software developer, trainer, and consultant to some of the biggest players in the business. David’s continuing passion for software design and construction has led him to train more than 10,000 professional developers since 1989 at hundreds of companies around the world including Amazon, Yahoo, and Microsoft—where his book’s advice has been successfully applied. His consulting firm, To Be Agile (http://ToBeAgile.com), helps developers adopt Extreme Programming practices such as test-first development, pair programming, and refactoring.

David Bernstein has been a professional speaker since 1990. He has over 20,000 hours of public speaking experience and has presented at most major Agile conferences including several years at (Agile Alliance) Agile, Craft Conf in Budapest, Scrum Gathering, Mile High Agile, Agile Testing Days, plus he has keynoted DevOps Days Tokyo 2020, and the Scrum Gathering Tokyo 2022 as well as leading hundreds of public and private classes for professional software developers and development teams.