IT system integration

Integration connects systems that run separately today into one consistent flow of data, so nobody retypes it by hand. We build API and webhook connections, synchronization of orders, stock, customers and payments, and queues with retries, logs and alerts. We work with Laravel, Python and PostgreSQL and run solutions in Docker. We hand over the code and documentation to you.

We start with a map of systems: what should talk to what, in which direction and how often. Then we check available APIs and limits, design the data flow and build the integration in stages, testing on sample data and then on real data. Timing depends on the number of systems, the quality of their documentation and the complexity of business rules. Older systems without an API take more work, which we discuss upfront.

The main factors are the number of connected systems, the quality and availability of their APIs, the sync direction (one-way or two-way), data volume, mapping rules and exception handling. Monitoring, logging and migration of historical data also count. We begin with a short analysis, because hidden limits in external systems can change the scope. That way the budget rests on facts rather than assumptions.

We design integrations so an outage does not lose events and data can be reprocessed. Events go into queues, and failed operations are retried with a log and an alert if the error repeats. We validate incoming data and protect access with authentication and minimal permissions, following practices aligned with ISO/IEC 27001. Before launch we test failure scenarios so it is clear who responds to a problem and how.

External APIs change, so an integration needs care: monitoring, updates after vendor changes and adjustment to new processes. The code and documentation are yours, but we can handle maintenance under a separate agreement. Logs and alerts show when something stops working before customers notice. The integration can also be extended later to more systems without rebuilding the whole.