Contributed comprehensive behavioral interview preparation content for senior candidates to the yangshun/tech-interview-handbook repository, focusing on practical guidance for common pitfalls, story selection, and defensive strategies. The work involved structured content creation and technical writing using Markdown, ensuring clarity and scalability for future updates. By aligning the new material with hiring objectives, the contribution improved the consistency of candidate evaluation and expanded the handbook’s coverage for advanced interview scenarios. The approach emphasized maintainable documentation practices, supporting both content creators and end users. No bugs were addressed during this period, with efforts concentrated on feature delivery and repository quality enhancement.