Node.js development for the work behind the website.

We start with the simplest tool that works. Many integrations can run in Shopify Flow, Zapier or Make, and our business automations service builds those. Node.js development is the right choice when volume makes per-task pricing expensive, when logic is too complex for a no-code tool, or when a custom app needs a real backend.

Kind one is API development and backends. We build REST and GraphQL APIs in Node.js, usually with Express or the server side of a Next.js app, with a database where one is needed. Express 5 is the current major version, and its migration guide lists what changed from Express 4; older Express services we take over get upgraded as part of the work.

Kind two is webhooks. Shopify, WooCommerce, payment providers and most SaaS tools send webhooks when something happens: an order is paid, a customer signs up, stock changes. Our handlers verify each request’s signature, respond quickly, put the real work on a queue and are safe to run twice, because providers retry and duplicates happen.

Kind three is integrations: your store connected to an ERP, warehouse, 3PL, CRM or marketplace, through each system’s official API. Every sync logs what it did, retries when the other system is down and sends an alert when it can’t recover. Data moves in documented directions, and only the fields each system needs move at all.

Kind four is background jobs: nightly reports, feed generation, image processing, data clean-ups and scheduled imports. They run on a schedule with logs and alerts, so a failed job is noticed the same morning.

Runtimes are kept supported. Node.js’s release page says production applications should only use Active LTS or Maintenance LTS releases, and Node.js 20 reached end of life in March 2026. We run services on a supported LTS line and plan upgrades before support ends, not after.

Security basics are not optional: API keys and passwords in environment variables or the host’s encrypted settings, never in code; input validated at every endpoint; dependencies checked for known vulnerabilities; and access limited to what each service needs. The OWASP Top 10 is the checklist we review against.

AI-assisted development is a good fit for this kind of work. Integration code is often repetitive: mapping fields, handling pagination, retrying requests. AI tools draft it quickly, a developer reviews it, and the time saved goes into the error handling, logging and tests that integrations usually lack.

Taking over an existing Node.js service is a common starting point. A Node.js developer on our side reads the code first, writes down what it does and which systems it touches, and checks the runtime and dependencies against their support dates. We then add logging and alerts before changing anything, so the first improvement is that failures become visible. Only after that do we fix bugs, move hard-coded keys into environment variables and take on new API development, with tests for the parts that handle orders or customer data.