Ashby Engineering has reported that over half of new production code since August 2025 is AI-generated, yet customer issues remain stable. The talent acquisition platform with 100,000 weekly active users shows no regressions in code quality or engineering velocity. This practical case study demonstrates AI's impact on real-world software development beyond theoretical discussions.

The engineering team argues AI targets mechanical coding tasks—syntax, glue code—not judgment-based work. Engineers remain responsible for understanding code and maintaining quality. LLMs can produce confidently incorrect output, requiring increased skepticism and critical thinking. The shift emphasizes human judgment and taste as more valuable than ever before.

Ashby establishes two ground rules: empathy cannot be replaced by AI, and engineers own their shipped code. Specs must continue serving human readers, focusing on expensive-to-change decisions. The company resists shortcut culture, prioritizing thoughtful abstractions over rapid development. This approach reflects their successful startup philosophy of deep thinking over superficial velocity.