API Development & System Integration.
Most operators have the software they need — a CRM, a billing system, a help desk, an email tool, a warehouse ledger. What's missing is the plumbing between them. We design and build the integrations that stop your team from retyping data, chasing failed webhooks, or rebuilding a dashboard every quarter.
GraphQL
n8n
Zapier
Stripe
HubSpot
Shopify
Postgres
Cloudflare Workers
Node.jsGraphQLn8nZapierStripeHubSpotShopifyPostgresCloudflare WorkersNode.jsA short list of
real things.
Not deliverables in the consultant sense. Actual files, pages, docs, access. Listed here so there's no surprise.
- 01Integration map: every system, the data it owns, and the sync direction — in a single document
- 02Typed API client or middleware service, deployed to your cloud or ours, with environment separation
- 03Webhook endpoints with idempotency, retries, and a dead-letter queue for inspection
- 04Scheduled sync jobs where real-time isn't needed, with monitoring and alerting on failure
- 05Schema validation on incoming and outgoing payloads, with drift alerts when APIs change upstream
- 06Secrets management: credentials in a vault, rotation plan, audit log for access
- 07Error monitoring (Sentry or equivalent) with alerts routed to the channel your team actually watches
- 08Runbook: what each integration does, how to debug a failure, who to contact upstream
Glue that holds up
under load.
A no-code Zap wired on a Friday afternoon works on Monday. Six months later it's silently dropping orders, firing duplicates, or timing out at 2am and nobody noticed. These are the failure modes we build against.
- What usually happens
A webhook misses once, the downstream system never sees the event, and nobody notices until a customer complains.
What we do insteadEvery webhook endpoint idempotent, every failed delivery retried with backoff, and a dead-letter queue you can inspect.
- What usually happens
Data silos: leads in HubSpot, orders in Shopify, support in Freshdesk, and no single view of a customer.
What we do insteadA typed integration layer that syncs the canonical record across systems, with conflict rules you signed off on.
- What usually happens
Credentials hardcoded in a no-code tool, rotated never, and a former contractor still has access.
What we do insteadSecrets in a vault, OAuth refresh tokens rotated, and an access log you can audit in a minute.
- What usually happens
An API changes its response shape and the integration breaks silently — until the month-end report is wrong.
What we do insteadSchema validation on every response, alerts when shapes drift, and a staging harness to catch upstream changes before prod.
- What usually happens
Rate limits hit at the worst possible moment — Black Friday, a campaign launch, a migration window.
What we do insteadBack-pressure and queuing designed in, not bolted on. Jobs slow down gracefully instead of flooding and failing.
- What usually happens
A 'simple Zap' becomes a Zap calling a Zap calling a webhook calling a Zap, with no single person who understands it.
What we do insteadOne integration layer, in code, in a Git repo you own. Diffs are readable, rollbacks are one command.
How we work, start to finish.
- 01Systems audit
We sit with the people using the tools, map every system and the data that lives in each, and identify the sync points that actually matter. Output: an integration map and a ranked list of what to build first, by hours-saved and risk-reduced.
- 02Design the contract
For each integration we write down the event, the payload shape, the failure modes, and the rollback plan — before any code is written. You sign off on the document; the build follows it.
- 03Build and harden
Integration code in a Git repo, deployed to a staging environment where we can replay real webhooks and simulate failures. Retries, idempotency, and alerting are built in, not added later.
- 04Hand over with runbooks
Production deploy, monitoring configured, and a written runbook per integration: what it does, how to debug it, what to do when the upstream API changes. Your team can own it from day one, or keep us on retainer for monitoring — either works.
Before you
ask us.
Stop retyping data between tools.
Tell us which systems are fighting each other. You'll get an integration map, a ranked build order, and an honest read on which parts are worth automating now versus later.
or email hello@genvoid.com