InterSystems Development & Integration

Cache ObjectScript, IRIS, Ensemble, HealthShare, TrakCare. HL7 and healthcare integration. Production support and live-system stabilisation. Deep, hands-on InterSystems experience approaching 20 years.

Senior Engineering Across the Full Software Lifecycle

Byteys builds, integrates, and modernises production systems. Specialist depth in InterSystems and legacy platforms, full-stack capability across modern stacks.

Why Byteys?

Legacy System Modernisation

Legacy systems built on InterSystems, Microsoft, and enterprise stacks — stabilised, extended, integrated, and modernised. Not rewritten for the sake of it: evolved with a pragmatic, risk-aware approach

Full-Stack Software Development

End-to-end software delivery across .NET / C#, Python, Node.js, JavaScript / TypeScript, SQL Server, Oracle, MySQL. Services, APIs, integrations, web apps, tooling, automation.

Architecture, Quality & Delivery

Architecture and technical leadership, integration design, code review, release readiness, and production support. The discipline that keeps complex software running in the real world.

Senior & Hands-On

You work directly with senior developers. No layers, no bait-and-switch. We write the code ourselves.

Specialist, Not Generalist

Deep expertise in InterSystems and legacy systems, backed by modern full-stack capability. We know where the hard parts are before we start.

Outcomes Over Theatre

Fewer slides, more shipped software. We're brought in when it matters and needs to work.

We're often brought in when:

"When the system has to work — and someone has to understand it deeply enough to build it."

Talk to us about your delivery