Muhammad Shakir contributed to the DFE-Digital/academies-academisation-api by focusing on backend development and code quality improvements using C# and NUnit. He enhanced the reliability of the Application Creation workflow by refining test assertions, replacing broad equivalence checks with targeted equality logic to reduce false positives and negatives. This approach improved test coverage accuracy and increased confidence in API releases and future refactors. Additionally, Muhammad addressed technical debt by performing non-functional whitespace cleanups, supporting codebase maintainability and readability. His work demonstrated a commitment to clean code, robust unit testing, and sustainable development practices within the .NET ecosystem.