Worked on enhancing secure HTTP communication in the thomaspoignant/go-feature-flag repository by implementing client certificate support within the HTTP retriever. Focused on backend development using Go, the work involved refactoring HTTP client creation to centralize and cache instances, improving reliability and maintainability. Transport validation was added to ensure robust configuration, and the HTTP retriever client was initialized upfront to reduce startup latency and prevent nil reference errors. The approach emphasized collaborative development and code quality, with contributions co-authored to ensure thorough review. These updates strengthened the API development workflow, addressing both security and stability in HTTP retrieval processes.