Project Title: Development of Online Dashboard for "Bantuan Kasih Johor" (270K+ Records, Role-Based Access) Project Description: I am looking for an experienced developer to build an online dashboard system (Power BI / Web App / other suitable solution) using my existing Excel dataset. The system must be scalable, user-friendly, and easily maintainable, as the dataset currently contains 270,000+ records and will continue to grow over time. Core Requirements: 1. Data Source Existing data in Excel (270K+ records) Preferably connected to: Google Sheets (Google Drive) OR Cloud database (recommended for performance) Admin must be able to: Add new data Edit existing records Delete data if needed Upload new Excel files (additional data) and merge into existing dataset Auto-update reflected in dashboard (real-time or near real-time) 2. User Roles (Login System Required) A. ADMIN USER (Multiple Accounts) Full access to all data Manage users (create/delete DUN users) Edit/add/delete recipient data B. DUN USER (Multiple Accounts) Restricted access Can ONLY view data for their assigned DUN 3. Dashboard Features ADMIN Dashboard (Main Page) Total number of recipients (overall) Total recipients by Jenis Bantuan (Aid Category) Total recipients by DUN DUN Dashboard (Main Page) Total recipients within their DUN Total recipients by Jenis Bantuan (within their DUN only) 4. Interactive Features Click on Jenis Bantuan → display full list of recipients under that category Click on DUN → display full list of recipients under that DUN Each record should display relevant details (name, address, phone, etc. including additional fields if needed) 5. UI/UX Requirement Clean, modern, and professional dashboard design Easy navigation Mobile-friendly is a bonus 6. Performance Requirement Must handle large dataset (270K+ rows) efficiently Fast loading and filtering Scalable for future expansion 7. Urgency This project is URGENT. Please include in your proposal: Suggested solution/tech stack (Power BI, Web App, etc.) Timeline to complete (preferably within 24–72 hours if possible) Total cost for full system delivery Bonus (Optional but Preferred): Experience with large datasets Previous dashboard or analytics projects Suggestions for best architecture (performance + cost efficiency)