Crafting high-performance digital experiences

A production-ready academic information system developed for the Informatics Engineering Program at Universitas Muhammadiyah Tangerang. I designed and implemented the digital signature feature end-to-end, covering document approval workflows, cryptographic signing, and public verification. The system applies modern security principles and is actively used by students and faculty to replace manual wet-signature processes.

HIMTI UMT App is the official Android application for the Computer Engineering Student Association at Muhammadiyah University of Tangerang, designed to centralize information, events, and member attendance in a single platform.

A production enterprise HRIS mobile application developed to support employee attendance, HR operations, and internal business workflows. I joined the project during the v3 development phase, working as part of a cross-functional team to enhance UI, improve user flows, extend features, and strengthen the existing architecture while managing the release and update lifecycle.