25 Hard-Learned Programming Mistakes From a Decade of Software Engineering

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A software engineer with over ten years of industry experience has compiled 25 common programming mistakes observed across their career, published on DEV Community. The piece argues that software engineering is fundamentally about managing complexity, communication, and trade-offs rather than just writing code. Key pitfalls highlighted include premature abstraction, over-engineering for scale, excessive third-party dependencies, and writing tests too tightly coupled to implementation details. The author also cautions against full codebase rewrites, working in isolation when stuck, and treating code reviews as opportunities to showcase individual intelligence. The article aims to help developers at all levels avoid years of costly trial and error by learning from these documented missteps.

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