Worked on the Netflix/dgs-codegen repository to streamline the code generation process for backend services. Focused on simplifying the generated builders by removing runtime checks for JSpecify annotations, this change eliminated unnecessary null checks for non-nullable fields, reducing code complexity and runtime overhead. The approach aligned with broader goals of improving performance and maintainability within the codegen module. Leveraged Kotlin and GraphQL expertise to ensure the generated code remained robust while enhancing readability and future extensibility. The work contributed to overall codebase health by reducing boilerplate and clarifying the code path, supporting ongoing backend development efforts in the project.