API and systems integration
Most organisations don't need another system. They need the ones they have to agree with each other.
Integration is the least visible engineering we do and some of the most valuable. A platform that cannot talk to the systems around it creates work instead of removing it. Bytekat has spent eleven years wiring new builds into old estates: bank-side systems with their own security regimes, government platforms with fixed interfaces, warehouse tools that report to a back office across a border.
Both directions of the seam
We consume APIs (payment gateways, government stacks, identity services, third-party platforms) and we design and build them. When stocktaking tools on a warehouse floor need to feed an audit back office, or an event platform needs to hand registrations to an agency's own systems, the interface gets the same discipline as the product: versioned, documented and boring to operate.
Legacy is not an excuse
Real estates contain undocumented databases, export files that arrive by email, and systems whose vendor disappeared years ago. Integration work at Bytekat starts with an honest survey of what actually exists, then builds the seam that works with it, rather than pretending the estate is cleaner than it is.
Delivered inside serious walls
Our integration record includes delivery inside a major private bank's compliance regime, and audit platforms in Australia fed by capture on the warehouse floor. If two of your systems disagree about the truth, that disagreement is where our work starts.
Questions we actually get.
- What kinds of systems have you integrated?
- Banking-side systems under compliance review, warehouse and field capture, government platforms, and the ordinary estate of business software: accounts, communications, storage. The pattern transfers and the discipline is the same.
- Can you integrate with a system that has no documentation?
- Usually, yes. We survey what actually exists (schemas, exports, observed behaviour) and build a seam that tolerates the system as it is. It is slower than integrating a clean API, and we will tell you by how much before we start.
- Do you build APIs for others to consume?
- Yes. Versioned, documented, and designed so the consuming team can build without meetings. An API is a product whose users are engineers, and we treat it that way.
- How do you handle credentials and sensitive data in integrations?
- Least privilege, encrypted transport, secrets kept out of code, and audit trails on the seams. Integration is where data crosses boundaries, so it gets the most conservative engineering in the build.
The work starts with what you need, not our menu.
Tell us what you need. A human reads every brief.