B.4 · Custom Software & Product Engineering
API Development & Systems Integration
Making systems that were never designed to meet work together properly

What we build
API platforms and integration layers between systems that were never designed to talk. Contract-first API design with versioning that does not break consumers, API gateways with authentication, rate limiting, and quota, event-driven integration over Kafka or a message broker, connectors to ERP, CRM, banking, and government portals, and reconciliation that proves both sides agree rather than assuming they do.
Capabilities
- Contract-first design with versioning that never silently breaks a consumer
- Gateways with authentication, rate limiting, quota, and per-consumer observability
- Event-driven integration with exactly-once semantics where it actually matters
- Connectors to ERP, CRM, banking, logistics, and statutory portals
- Reconciliation jobs that prove both systems agree, and raise it when they do not
- Sandbox environments and developer documentation that a partner can self-serve
Related services
How it connects
Where it sits in the stack.
This service, and the two it hands off to. None of them can be optimised alone.
APIs & Integration
API platforms and integration layers between systems that were never designed to talk.
Custom Software Development
End-to-end delivery of bespoke business systems: discovery and domain modelling, architecture, implementation, test automation, deployment, and support.
Software & Product Engineering · see serviceWeb Applications
Web applications and customer portals built on modern server-rendered frameworks.
Software & Product Engineering · see serviceBring us the whole problem.
Tell us where the work is stuck, whether that is a model that never reached production, an application nobody can change, a data platform nobody trusts, or a plant the business cannot see. An engineer replies with a first read, not a sales deck.