Role: Lead Mobile & AI Engineer

Flutter, Android, Supabase, PostgreSQL, Row-Level Security (RLS), PowerSync / Offline Data, Gemini Multimodal API, Speech-to-Text (STT)

Built an offline-first mobile operations and financial ledger tailored for vessel operators and maritime businesses. The application enables crews to log operational expenses (fuel, ice, provisions, catch yields) at sea under zero-connectivity conditions, featuring real-time receipt scanning and a voice-driven AI assistant.

Maritime vessel managers operate in remote offshore areas with little to no cellular connectivity, causing critical transaction logs and catch records to be lost or delayed.

Manual bookkeeping resulted in prolonged revenue calculations, calculation errors during profit-sharing settlements (bagi hasil), and slow record reconciliation.

Entering detailed multi-currency and unit data on small mobile screens while on active duty was slow and error-prone.

Offline-First Synchronization: Engineered a robust local-first database replication architecture using Supabase and PowerSync/SQLite, allowing seamless offline CRUD operations with conflict-free cloud reconciliation once connectivity returns.

Multimodal Voice & Receipt AI: Integrated Google Gemini multimodal APIs and on-device STT pipelines to enable hands-free voice logging and automated receipt parsing directly into structured transaction drafts.

Complex Settlement Logic: Built an automated net-profit and multi-party share distribution calculation engine with instant formatted report generation ready for WhatsApp dispatch.

Hardened Security & Isolation: Implemented granular PostgreSQL Row-Level Security (RLS) policies preventing cross-vessel and cross-tenant data leaks.

Successfully deployed an operational pilot running smoothly under 100% offline conditions at sea.

Accelerated voyage financial settlement and profit-sharing calculations from hours of manual tabulation to under 30 seconds.

Achieved zero data loss across hundreds of offline-logged transactions during real-world maritime pilot runs.