Worked on the City-of-Helsinki/kukkuu repository to enhance the event reminder system by extending the lead time for notifications from one day to three days, directly addressing a product owner’s request and improving user engagement. Used Python and configuration management skills to implement and document the feature, ensuring the changes were robust and ready for release. Collaborated closely with the product owner and QA to validate the new timing and prevent regressions in the notification workflow. No major bugs were reported during this period, and all updates were thoroughly documented to support future maintenance and stakeholder communication within the project.