Worked on the facebook/fbthrift and facebook/fboss repositories, focusing on codebase modernization and API surface reduction using C++ and API design expertise. Addressed technical debt in fbthrift by refactoring ThriftServer to remove deprecated API usage, improving maintainability and preparing the code for future Thrift API migrations. In fboss, removed the external Thrift Function History Export API, consolidating function history management internally to reduce maintenance and security risks. Emphasized code clarity, internal tooling support, and backward-compatibility during these changes. The work combined code refactoring and software development skills to enhance stability, readability, and long-term upgrade readiness across both repositories.