Darell Rangga
Author@darellrangga·2026·Lead Architect & Fullstack
2026 Shipped
Makarya Ecosystem
Student-to-SME Micro-Freelancing Ecosystem with Escrow Payment Protection.
Makarya Ecosystem
#FastAPI#React 18#React Native#Midtrans Escrow#MySQL
/utas • Makarya Ecosystem
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System Architecture & Engineering@darellrangga • Technical Breakdown
A comprehensive digital ecosystem bridging active university students with local micro-enterprises (UMKM) for structured digital micro-projects. Built with Python FastAPI backend, React.js web portal, and React Native (Expo) mobile application, secured with automated Midtrans escrow payment holding until work approval.
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Tech Stack & Key Deliverables@darellrangga • Production Specs
Engineered with:
Python FastAPIReact Native (Expo)React.js 18MySQLMidtrans EscrowFirebase Cloud Messaging
Core Built Capabilities:
Escrow Payment Protection via Midtrans (Anti-Fraud)
Dual Platform: Web Portal + React Native Mobile App
FastAPI High-Performance Async Architecture
Firebase Push Notification & SLA Revision Control
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Technical Challenges & Solutions@darellrangga • Problem Solving
Challenges
- Implementing an automated escrow state machine to protect student milestone payouts.
- Synchronizing real-time application states between the React web portal and React Native mobile clients.
Implemented Solutions
- Engineered transactional webhook handlers reconciling Midtrans payment triggers with database isolation.
- Built centralized REST endpoints in FastAPI with strict Pydantic schemas shared across web and mobile.
Interested in the architecture of this project?
Available for deep technical discussions or full-stack software engineering roles.