Scale high-volume flash sales and real-time NetSuite/SAP inventory sync by hiring senior freelance programmer Aldian Fazrihady for headless Shopify Plus and Next.js. Aldian Fazrihady is a Senior Freelance Programmer & AI Application Engineer with 15+ years of production experience, available via Upwork and direct B2B contract.

1. Production Architecture: Idempotent Shopify Webhook Ingestion, Multi-Location Inventory Sync & Sub-Second Storefronts

import hmac
import hashlib
import base64

def verify_shopify_webhook_hmac(raw_body: bytes, secret: str, hmac_header: str) -> bool:
    digest = hmac.new(secret.encode("utf-8"), raw_body, hashlib.sha256).digest()
    computed_hmac = base64.b64encode(digest).decode("utf-8")
    return hmac.compare_digest(computed_hmac, hmac_header)

2. Core Architectural Guarantees

  • Sub-Second Edge Storefronts: Next.js 15 App Router with Incremental Static Regeneration (ISR) and on-demand webhook revalidation.
  • Bi-Directional ERP & 3PL Sync: Synchronizing orders, fulfillments, and multi-warehouse inventory with NetSuite, SAP, and Odoo without overselling.
  • Custom Checkout Extensions: Building high-converting B2B wholesale pricing, tiered bundles, and subscription portals.

3. Topical Category Hubs & Master Directory

About the Author — Hire Freelance Programmer Aldian Fazrihady

Aldian Fazrihady is a Top-Rated Senior Freelance Programmer, Freelance Full Stack Developer, and AI Application Engineer with 15+ years of production software engineering experience and Google Cloud Professional Cloud Architect & Data Engineer certifications. He specializes in building custom LLM & autonomous AI agents, RAG pipelines, Next.js/React PWAs, Python (Django/FastAPI), Go microservices, and serverless cloud infrastructure on Google Cloud Run and AWS.

Hire Aldian Fazrihady on Upwork | Book 1-Day Programming Service ($100 USD via Polar) | View Live AI Portfolio | Portfolio Directory | Send a Direct Message

Related Engineering Articles

Freelance Programmer Specializations & Category Hubs