How Kent Beck shapes the software engineering industry

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Brought to You By:• Antithesis – verify your system’s correctness without human review or traditional integration tests – and avoid bugs or outages.• turbopuffer – a vector and full-text search engine built on object storage. It’s fast, cheap, and extremely scalable.• WorkOS – everything you need to make your app enterprise ready.—Few have made as big an impact on software engineering as this week’s guest on the Pragmatic Engineer podcast, Kent Beck. He created Extreme Programming, pioneered test-driven development (TDD), co-created JUnit, and is one of the authors of the famous ‘Agile Manifesto’. But these days, he's re-examining many ideas for the age of AI, and says we’re failing to accumulate trust during this new era at the same high rate as new code is being accumulated.In this episode of the Pragmatic Engineer podcast, Kent and I dig into his journey from discovering Smalltalk in the early days of personal computing, to helping define modern software engineering practices. We explore the origins of TDD, design patterns, Extreme Programming, and Agile – along with some lessons learned at Apple and Facebook.Kent explains why he believes software engineering is about far more than writing code, why no one yet knows exactly how engineers should work alongside AI agents, and how his "explore, expand, extract" framework can help engineers navigate major technology shifts.—Timestamps00:00 Intro03:47 Human engineers aren’t going away08:00 Kent's path into tech13:50 Undergraduate and graduate studies17:21 Kent’s first programming job18:54 The rise and fall of Smalltalk27:04 Working with Ward Cunningham37:36 Design patterns44:05 Working at Apple51:08 CRC Cards59:29 Testing tools in the language1:04:22 The C3 project with Martin Fowler1:09:54 Extreme Programming1:16:25 Developing TDD1:25:07 Writing the Agile Manifesto1:30:00 Agile’s impact1:32:40 Agile’s downside1:37:32 The Dotcom Bust1:44:30 Lessons from working at Facebook1:59:44 Kent’s ‘Good to Great’ program at Facebook2:06:07 Soft skills engineers need to learn2