When Systems Don't Talk to Each Other

Most operational pain comes from disconnection: orders in one system, inventory in another, shipping somewhere else, customer data in a fourth. Manual handoffs fill the gaps — until they don't, and something gets dropped, double-shipped, or lost.

API integrations replace those manual handoffs with reliable, automatic data flow between the systems you already use.

What ThinkGenius Builds

  • Two-way integrations that keep records in sync across platforms in real time or on a schedule.
  • Webhook handlers that react to events from third-party systems and trigger downstream actions.
  • Custom backends and API layers that unify multiple systems behind a single clean interface.
  • Carrier and fulfillment integrations for label generation, tracking, status updates, and reconciliation.
  • Marketplace and platform integrations for listings, orders, inventory, and pricing.
  • Internal-to-internal integrations connecting tools, databases, dashboards, and operational systems.

Common Integration Patterns

E-Commerce ↔ Internal Systems

Sync orders, inventory, customers, and fulfillment data between platforms like Shopify or WooCommerce and your internal database.

Shipping & Carrier APIs

Generate labels, fetch tracking, normalize delivery events, and reconcile shipments across multiple carriers.

Payments & Billing

Connect payment processors, reconcile transactions, handle webhooks for refunds and chargebacks, and surface financial data.

CRM, ERP & Operations

Push customer, order, and operational data between line-of-business systems so teams stop double-entering.

Webhook Pipelines

Receive events from third-party platforms, validate them, route them to the right handler, and act reliably.

Custom Internal APIs

Build a clean API layer in front of your existing systems so internal tools, automation, and dashboards have one source of truth.

Built for Production, Not Just for the Happy Path

Real integrations break in messy ways: rate limits, expired tokens, malformed payloads, partial failures, retries that should be idempotent. Production-quality integrations handle all of that explicitly — with logging, monitoring, error reporting, and predictable recovery.

Tools & Technologies

  • Python
  • PHP
  • JavaScript / Node.js
  • REST & GraphQL
  • Webhooks
  • OAuth & token auth
  • MySQL
  • Queues
  • Docker
  • Cloud deployment

Outcomes

  • Systems that stay in sync without manual handoffs
  • Faster operations with fewer dropped tasks
  • Real-time visibility across platforms
  • Less time spent firefighting broken connectors

FAQs

What kinds of APIs do you integrate?

E-commerce platforms (Shopify, WooCommerce, custom backends), shipping carriers, payment processors, marketplaces, CRMs, ERPs, accounting systems, internal services, and custom partner APIs. Both REST and GraphQL.

Can you build a backend or API from scratch?

Yes. Many projects involve building a custom backend or API layer that ties multiple systems together, or exposing a clean internal API for other tools to consume.

How are credentials and security handled?

Credentials are stored securely (env vars, secret managers), requests use proper authentication, and integrations follow least-privilege principles. Security is part of the architecture, not an afterthought.

What happens when an external API fails?

Production integrations include retry logic, queueing, idempotency, error reporting, and graceful degradation — so a transient failure on a third-party service doesn't break your operations.

Can you replace a brittle integration that already exists?

Yes. Many engagements start with an existing connector that breaks too often, and end with a clean, maintainable integration in its place.

Two Systems That Should Talk and Don't?

Send over what platforms or APIs you need connected and what should happen between them. I'll scope the integration.