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Product Engineering

APIs & System Integration

Connecting systems that were never designed to talk to each other, with the reconciliation and retry logic that keeps data consistent.

Overview

Integration work is where estimates go wrong. Rate limits, partial failures, duplicate records, and inconsistent identifiers between systems are the actual job, and they only show up under real volume.

We build integrations that assume failure: idempotent writes, dead-letter queues, and reconciliation jobs that detect divergence rather than trusting that every message arrived.

What you receive

  • Integration services with retry and dead-letter handling
  • Reconciliation jobs and exception reporting
  • OpenAPI specification
  • Load test results at projected peak volume
  • Operational runbook

Typical stack

  • Node.js
  • Python
  • Redis
  • RabbitMQ
  • PostgreSQL
  • OpenAPI

Capabilities

What this covers in practice

01

Third-party integrations

Marketplace, payment, and logistics APIs handled with per-provider rate limiting and backoff.

02

Reconciliation pipelines

Scheduled comparison between systems of record, with exception reports instead of silent drift.

03

Event-driven architecture

Queues and workers sized to real throughput, with idempotency so retries are safe.

04

API design

Versioned, documented interfaces that your partners can build against without support calls.

Related

Also under Product Engineering

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Want to talk through a apis & system integration project?

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