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Jan 5, 2026 14 min

How Senior Engineers Manage Huge Codebases (Without Losing Their Mind)

from PierreHenry.Dev Tech Show Hosted by Pierre-Henry Soria

Managing a large codebase can feel overwhelming, especially in fast-moving teams. Let’s be honest: keeping thousands of lines of code clean, scalable, and maintainable while staying sane? That’s the real challenge. In this video, I share the proven strategies and real-world habits that senior engineers actually use to tackle massive codebases without burning out. You’ll learn how to break down complexity, maintain quality under pressure, and develop the mental models that make even huge projects feel manageable. Whether you’re joining a large project or watching your own codebase grow, these practical techniques will help you work smarter. Thanks for reading The Healthy Scientist: Build Using AI With Healthy Habits 🔥! Subscribe for free to receive new posts and support my work. You can get inspired by the open-source projects I’ve built over the past several years, available on my GitHub. And there are so much more to come on my LinkedIn! This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit www.pierrehenry.dev

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How Senior Engineers Manage Huge Codebases (Without Losing Their Mind)

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