Kader App is a mobile application that provides a comprehensive solution for managing family and health screening for posyandu cadre.
I joined Kader Kita App in pre-phase 2 as a backend programmer. My main focus was stabilizing and optimizing existing services from phase 1, especially around query efficiency, business logic flow, and reliability in production.
I worked on improving screening and family-related service performance, refining transactional logic to reduce inconsistent states, and fixing bugs found in phase 1 flows. I also handled API improvements for OTP/auth integration, background job processing, and reporting endpoints, while continuously supporting database migration and indexing updates to keep the backend scalable and maintainable.
