2023 — Present
Backend Engineer (Logistics / Shipping Platform) · iShip Service Co., Ltd.
Develop and maintain a multi-courier logistics platform that integrates multiple shipping providers into a single operational system.
- ▹Built a multi-carrier shipping platform integrating Flash Express, MakeSend, DHL, Ninja Van, Thailand Post, and Shopee Express with create, cancel, and real-time tracking support.
- ▹Designed and implemented a dynamic pricing engine based on zone, weight or size, temperature type, COD, discounts, and pickup fees.
- ▹Implemented webhook pipelines for shipment status updates, parcel dimension updates, and automatic price recalculation.
- ▹Built MakeSend API v2 integration covering master data, area lookup, price calculation, shipment creation, cancellation, and tracking.
- ▹Implemented service-area validation for both origin and destination coverage before shipment creation.
- ▹Designed a credit ledger system to track service charges, pickup fees, COD transactions, and webhook-triggered financial adjustments.
- ▹Built price-difference reconciliation by tracking number and implemented comprehensive audit logging for requests, responses, webhooks, and pricing events.
- ▹Integrated Telegram, Line, and customer webhook notifications for shipment status and billing events while supporting backend architecture, data modeling, and production operations.
- Laravel
- PHP
- MySQL
- REST API
- Webhooks
- 3rd-party API Integration
- Pricing Engine
- Logistics Platform
- Order Management
- COD
- Credit Ledger
- System Integration