Srikanth Thummala worked on the NHSDigital/identity-service-jwks repository, focusing on maintaining API stability during August 2025. He executed a controlled rollback of the ftrs-search API changes, restoring previous API behavior to ensure backward compatibility and minimize disruption for downstream clients. This work required careful analysis of integration points and a strong understanding of RESTful API design and version control using Git. By prioritizing stability over new feature development, Srikanth addressed a critical bug and reduced the risk of regressions, demonstrating depth in troubleshooting and maintenance within a Node.js and JavaScript codebase in a production healthcare environment.