I build frontends that hold up in production, and help teams ship faster with AI.

TAF Webchat

Chat with your Power BI data

Nawatech · Full-stack Developer

AI chat app that lets business users ask plain-language questions about Power BI data. An LLM writes and runs DAX against Microsoft Fabric, then answers with text, tables, and charts, without anyone needing DAX skills or a custom report.

• —Delegated identity instead of a service account, keeping each user's data permissions
• —The server holds all secrets; the browser never talks to the LLM or Fabric directly
• —Fixed 502 errors by shrinking the session cookie from about 10 KB to under 3 KB

BTN Payroll AI Assistant

AI-assisted payroll operations platform

Side project · Frontend Engineer

Validates payroll data against business rules and uses OCR + LLM extraction to turn scanned deduction memos into upload-ready HR batch files.

• —OpenAPI-first: typed frontend API calls generated from a linted spec
• —Async submit + poll for multi-minute OCR jobs, avoiding the 30s gateway timeout
• —LLM isolated behind a gateway, with prod/dev AI environments separated by header

Aldino Medika

Medical Check-Up (MCU) Management System

Side project · Frontend Engineer · API Contract Designer · Deployment

End-to-end platform for corporate medical check-ups: client onboarding, MCU planning, patient registration, inspection results, SOAP notes, and result delivery.

• —Contract-first API with end-to-end type safety
• —Domain-driven architecture (one Django app per business domain)
• —Designed for SATUSEHAT (HL7 FHIR R4) interoperability: FHIR-aligned visit status, NIK identity, ICD-10; integration designed, not yet built

Maindealers Project

Motorcycle sales ecosystem with multi-channel chatbot

Nawatech · Frontend Engineer

Three connected apps that drive motorcycle sales: a campaign console, a WhatsApp + web chatbot, and a product catalog, plus a white-label option for dealer partners.