[ 06 ]Architecture and integrations

Plugging your product into the tools you already use.

Software architecture and API integration: connecting your application to Shopify, Stripe, a CMS, your CRM or invoicing, without rebuilding everything.

01What this is

No product lives alone. There's your shop, your invoicing tool, your CRM, your emails, sometimes an old piece of software nobody dares touch. Architecture work is deciding how all of that talks, and where the truth lives when two systems disagree.

It's the part I like most: taking what exists, understanding its constraints, and designing the missing piece rather than throwing everything out. Shopify as an invisible back-office behind a custom storefront, a CMS like Sanity so the client edits without breaking anything, Stripe for payments, n8n or webhooks for automations.

02What it covers
Architecture design: data, services, hosting
Shopify, Stripe, Sanity, HubSpot and other API integrations
Webhooks, syncs, automations (n8n)
API design and documentation for your partners
Audit and takeover of an existing system
03How I go about it
01

Map before coding

A diagram of everything that exists and everything that must talk. Half the problems get solved right there.

02

One source of truth

Every piece of data has an owner. Other systems read it, they don't reinvent it.

03

Designed to fail well

A third-party API will eventually stop answering. The system must carry on, log it, and retry cleanly.

04The tools
RESTWebhooksShopifyStripeSanityn8nPostgreSQL

Let's work together.

A project, a question, an urge to modernise your business?
Write to me. I answer within 24 hours.

contact@amauryandrade.com