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systems integration · apis

Make different systems exchange data without turning the operation into a maze.

A good integration is not one that works during a happy-path demo. It is one that fails predictably, can retry safely, exposes where a transaction stopped, and does not duplicate money or data when the other side is unavailable.

Integrations have to be designed to fail well

Networks time out. Vendors rate-limit. Credentials expire. A request can be processed remotely even when your side never receives the response. Those are normal distributed-system conditions, not edge cases.

Retries, idempotency keys, durable queues, dead-letter handling, correlation IDs, and reconciliation routines are the difference between a connection and an integration you can trust.

Java and Spring Boot for enterprise integrations

Java and Spring Boot are a strong fit for transactional APIs, integration services, schedulers, messaging, and systems that need long-term maintainability inside enterprise environments.

We also work with Go, PHP, Node.js, and Python when they fit the surrounding platform better.

Observability shows where the transaction stopped

A support team should not need to grep random servers to understand whether an order reached the ERP, whether a payment webhook was processed, or whether a retry is still pending.

Structured logs, correlation IDs, metrics, traces, business-status tables, and alerts make operational state visible.

Where integrations usually break

Common failure points include inconsistent identifiers, undocumented status transitions, duplicate callbacks, timezone and encoding differences, partial updates, and assumptions about ordering.

We map these failure modes early and define the source of truth for each piece of data before coding the integration.

Anti-corruption layers protect your domain

External APIs change. Legacy schemas carry awkward rules. An anti-corruption layer keeps those concepts at the boundary instead of leaking vendor-specific fields and status codes through the entire system.

That makes future provider changes and internal refactoring much less expensive.

Frequently asked questions

Do you integrate with SOAP and legacy web services?

Yes. SOAP, XML, older authentication schemes, databases, files, queues, and vendor-specific protocols can be wrapped behind a cleaner internal contract.

Can you integrate payment providers and Pix?

Yes. Payment flows should include idempotency, webhook validation, reconciliation, state transitions, and auditable handling of failures.

Do you build public APIs?

Yes. API design can include authentication, authorization, versioning, rate limits, documentation, monitoring, and consumer-facing contracts.

Can you fix an integration that already exists?

Yes. We first trace the transaction end to end, identify failure modes and hidden coupling, and then stabilize the path before making larger structural changes.