AI Engineer and Full-Stack Developer

Built and maintained full-stack ERP modules for sales, purchasing, quality, warehouse, and production operations. Owned features end to end, from database schema design and backend APIs to React and TypeScript user interfaces.

Delivered production applications including a national sales ERP, a factory ERP, and internal HR applications for payroll and collective leave. These systems supported approximately 200 users across the organization.

Implemented approval-chain workflows with detailed audit trails, capturing who performed each action, when it occurred, and where it was performed. Worked directly with non-technical stakeholders in sales, purchasing, quality, and warehouse teams to translate business processes into software.

Designed, built, and deployed two complete ERP applications independently for sales and warehouse domains. Owned the database schema, APIs, user interface, AI integration, deployment, and operational workflows.

Built a multi-level approval engine in which an LLM evaluates pricing, quantity, and discount risk before human approval. Developed an email-to-order pipeline using n8n, document-grounded RAG assistants with controlled tools, confirmation flows for write actions, and regression benchmarks integrated with Vitest.

Modeled warehouse operations across three warehouses using 12 months of seeded transaction history, real-time stock synchronization, and a live 3D warehouse visualization. Published seven build logs documenting the implementation and technical decisions.

Completed a Bachelor of Applied Technology (Diploma IV) in Informatics Engineering in Surabaya, Indonesia.