Worked on improving configuration reliability and documentation quality across the valtimo-platform/valtimo and valtimo-platform/valtimo-documentation repositories. Focused on back-end development and documentation, addressing critical issues such as environment variable naming for Keycloak OAuth2 integration and correcting YAML formatting in migration guides. Used Markdown and YAML to enhance clarity and prevent misconfigurations, ensuring that authentication properties were correctly recognized by Spring Security and that deployment documentation was accurate and readable. Demonstrated careful debugging and precise Git practices, delivering targeted fixes that improved onboarding and deployment stability without introducing new features, emphasizing maintainability and configuration hygiene throughout the development process.