Recorded client call
“I find him very nice to work with and he actually delivers a very good quality. So I am really happy with him.”
Noa van der Veen · Strategy and operations, CheckyPro

Connected product engineering
We build APIs and third-party integrations that survive duplicate events, rate limits, provider outages, and the edge cases absent from quick-start documentation.
Certified partnerships
Rated by clients and team
What you get
The contract, retry path, audit trail, test suite, and runbook are part of the deliverable: not follow-up work after the first incident.
REST and GraphQL APIs with explicit contracts, stable error shapes, versioning, authentication, and useful documentation.
Payments, banking, KYC, EHR, CRM, advertising, and AI providers: wrapped so their quirks do not leak through your product.
Signature verification, idempotency, replay, exponential backoff, and dead-letter queues as standard.
Rate limits, tenant isolation, scoped credentials, usage metering, and gateway policy without unnecessary platform overhead.
Consumer contracts, provider sandboxes, mock servers, and failure-path tests that run in CI before production.
Replace brittle direct calls and silent failures without stopping the product or losing in-flight events.
Traceable requests, redacted logs, encrypted payloads, and retention controls for regulated workflows.

Integrations that survive the edge cases absent from quick-start docs.
Delivery
We document data ownership, provider limits, authentication, error semantics, and what must happen when either side is unavailable.
OpenAPI or GraphQL contracts, internal adapters, idempotency keys, queues, and observability are agreed before implementation.
We use real provider sandboxes, recorded edge cases, contract tests, and fault injection: not happy-path mocks alone.
Dashboards, alerts, replay tooling, runbooks, and ownership handoff make the integration supportable after go-live.
Failure-proof engineering
Every integration we ship includes signature verification, idempotency, replay, exponential backoff, dead-letter queues, and operational dashboards. When a provider goes down, your product degrades gracefully: it does not break.
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Fit
Related services
Build the product services and data model behind the integration layer.
Explore serviceMove and reconcile provider data across warehouses, marts, and product systems.
Explore serviceStabilise an inherited integration that is losing events or blocking launch.
Explore serviceTestimonials
Verbatim quotes from teams we shipped to production. We publish testimonials with written sign-off on file.
4.6/5across 58 verified client reviews.Read them all at source
What matters is not whether the happy path works. It is what the product does when the provider behaves unexpectedly.
Our production work includes Stripe, Plaid, Onfido, Apple HealthKit, EHR systems, OpenAI, Anthropic, Meta Marketing API, Google Ads API, CRMs, and other vertical providers. The important capability is not memorising SDKs; it is engineering around provider-specific limits and failure behaviour.
Talk to the engineers who will design the contract, failure paths, tests, and operational handoff: not a sales engineer.