Srinivasulu Munagala contributed to HMRC’s pension-scheme-event-reporting-frontend and pensions-scheme-frontend by modernizing API integrations and improving data validation. He upgraded the UpscanInitiateConnector to use HttpClientV2 and refactored generic type handling for future compatibility, leveraging Scala and Play Framework. Srinivasulu also established test scaffolding with FastJsonAccumulatorSpec, laying the foundation for robust unit testing. In the pension-administrator-frontend, he enhanced business name validation to enforce stricter input rules, improving data quality and user experience. Additionally, he standardized OptionalSchemeReferenceNumber handling across controllers and services, resolving compilation errors and stabilizing builds. His work demonstrated depth in backend and frontend development.