Digital Engineering

API & Microservices

Clean integration layers between the systems you already run.

The problem

Your systems do not talk to each other, so people copy data between them by hand. Existing integrations break quietly and nobody finds out until a customer complains.

What's included

  • Integration audit and API contract design
  • REST or GraphQL services with typed contracts
  • Authentication, rate limiting and input validation
  • Queues and webhooks for reliable background work
  • Automated tests and API documentation
  • Logging and failure alerts

How it fits together

API & Microservices architectureClient appsAPI gatewayAuthServicesQueueDatabases
API & Microservices architecture: Client apps, then API gateway, then Auth, then Services, then Queue, then Databases.

The stack

  • Node.js
  • TypeScript
  • GraphQL
  • PostgreSQL
  • Redis
  • Docker

Typical outcomes

  • Less manual re-entry between systems
  • Failures that raise an alert instead of going unnoticed
  • Documented APIs other developers can build on

Results depend on your starting point and scope.

Common questions

Often not. A well-structured single service is simpler and cheaper to run. We split services only where scaling or team boundaries justify it.

Usually, yes. If a system has no API, we can often work through its database, file exports or a small adapter service. We confirm the approach during scoping.

You do. Code and documentation transfer to you on final payment, as described on our Trust Center page.

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