Backend Developer — Multi-Platform Order Hub & Courier Integration (Fulfillment/WMS)

Posted 10 hours ago

Worldwide

Summary

I need a backend developer to build a custom order fulfillment system that pulls orders from multiple e-commerce platforms (Shopify, WooCommerce, Magento, OpenCart) into a single normalized database, checks stock per client, and automatically generates shipping waybills through several regional couriers (Econt, Speedy, Box Now, Pigeon Express, Intime). The stack will be Supabase (Postgres) for the database/API and Appsmith for the admin interface, with custom code handling the platform webhooks, order normalization, and courier API integrations. This is a real business (fulfillment/3PL) going into production, not a prototype — reliability of order intake and waybill generation matters more than polish on the UI.

$1,000.00
Fixed-price
Expert
Experience Level
Remote Job
One-time project
Project Type

Contract-to-hire opportunity

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Skills and Expertise

Mandatory skills

Shopify

API

Ecommerce

API Development

Activity on this job

Proposals:20 to 50
Last viewed by client:7 hours ago
Interviewing:
0
Invites sent:
0
Unanswered invites:
0

About the client

Member since Jul 23, 2026

Bulgaria
11:14 PM

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