BUMA Digiman (2021-2022)

Engineered BUMA Digiman, a sophisticated native Android application for Indonesia’s second-largest mining contractor, digitalizing maintenance operations for their thousand of mining vehicle fleet. Specialized in offline-first architecture to enable uninterrupted inspections in remote mining locations.

Technical Implementation:

• Architected robust offline-first system using Room/SQLite enabling:
  • Complete vehicle inspection workflows without network connectivity
  • Multi-format data collection (checklists, photos, documents, digital signatures)
  • Automatic data synchronization using WorkManager when connectivity resumes
• Developed role-based access control system distinguishing between supervisor and inspector capabilities
• Integrated enterprise authentication using Microsoft Authentication Library (MSAL) with Azure services
• Built comprehensive inspection system handling:
  • Dynamic form generation and validation
  • Photo and document upload management
  • Digital signature capture and verification
  • Automated synchronization queuing

Key Technical Achievements:

• Engineered offline data management system handling complex inspection data types
• Implemented automatic background synchronization using WorkManager
• Built enterprise-grade authentication with MSAL/Azure integration
• Created role-specific features and workflows
• Developed reliable local storage architecture using Room