As an Android Developer at PT Sarimelati Kencana Tbk., I developed the Pizza Hut Android end-user application supporting delivery, takeaway, and dine-in services, including loyalty points and payment integrations. I focused on building reliable, scalable features for a large-scale consumer application. Key Responsibilities: - Developed and maintained core features of the Pizza Hut Android application. - Performed bug fixing and performance improvements to ensure application stability. - Collaborated with cross-functional teams to deliver and enhance application features. - Implemented modern Android components and architecture for enterprise-scale development. Tech Stack: Android, Jetpack Library, Kotlin, Dependency Injection, MVVM, Hilt, Retrofit, Firebase, CI/CD

As a Mobile Software Developer at PT. Autentika Digital Indonesia, I build secure digital identification systems. The company itself specializes in PKI-based technologies, offering solutions such as digital document signing, 2FA, and a full Certification Authority system. I contributed to projects aimed at enhancing national-level ID verification and enterprise-grade certificate management. Key Responsibilities: - Developed cross-platform OCR and Face Recognition applications using Flutter and Google ML Kit. - Integrated machine learning models using TensorFlow Lite for offline document recognition and facial similarity checks. - Collaborated with the backend team to ensure secure data exchange using PKI encryption. - Built and maintained a web dashboard using ReactJS for Certificate Authority lifecycle management. Tech Stack:
 Flutter, Dart, Google ML Kit, TensorFlow Lite, ReactJS, REST API, GitLab, Figma, PKI.

As an Android Mobile Engineer at KlikDokter, part of Kalbe Farma Group, I worked on modernizing and scaling Indonesia’s leading health-tech platform. I was involved in the development of several mobile apps for patients, doctors, and pharmacies, enabling features such as virtual consultations, medical scheduling, and e-pharmacies. Key Responsibilities: - Developed core features in KlikDokter’s Android app using Kotlin and Jetpack Libraries. - Built and maintained features like online consultations, medicine delivery, and appointment bookings. - Developed internal medical applications such as KlikMedis for doctors and Moshealth for pharmacies. - Followed MVVM architecture with Hilt for dependency injection and Coroutines for asynchronous operations. - Coordinated with UI/UX designers, QA engineers, and product managers. Tech Stack:
 Kotlin, Android SDK, Jetpack (Navigation, LiveData, ViewModel), Hilt, Retrofit, Coroutines, Firebase, Jira, GitLab.

At Elabram Systems, I worked as an Android Developer responsible for building HR and recruitment applications across Southeast Asia. I worked on several end-to-end products including internal workforce systems and public-facing job platforms. The systems supported Elabram’s broader mission to improve talent management and outsourcing in the region. Key Responsibilities: - Developed and maintained mobile applications such as Axdif (task and workforce management) and Xremo (job portal for Malaysia). - Designed UI workflows and implemented business logic in both Kotlin and Java. - Managed version control and CI pipelines with Bitbucket and Git. - Implemented notification and chat modules, attendance tracking, and role-based access systems. - Collaborated closely with backend developers to integrate RESTful APIs and optimize performance. Tech Stack: Kotlin, Java, MVP/MVVM, Retrofit, Firebase, Bitbucket, Android Studio, Jira, REST API.

As a Fullstack Software Developer at DataOn, I contributed to the development of GreatDay HR (formerly SunfishGo), a mobile HRIS solution used by enterprises across Asia. The platform enables employees to manage leave, attendance, and payroll from their mobile devices. Key Responsibilities: - Developed hybrid mobile apps for Android and iOS using Ionic Framework and AngularJS. - Built backend services and RESTful APIs using Node.js to support core HRIS functionalities. - Created modules for leave requests, attendance logging, and approval workflows. - Maintained Git-based version control and coordinated deployments with CI tools. Tech Stack: Ionic, AngularJS, Node.js, HTML/CSS, JavaScript, REST API, GitLab, Visual Studio Code.