Byteys is an Australian specialist software development consultancy (trading as VK6 Pty Ltd), founded by Lee Wewzow — a senior developer and architect with 25+ years of experience including several years inside InterSystems Australia and many more delivering on InterSystems technology at client sites. Byteys specialises in hands-on development and integration across the InterSystems platform (Cache, IRIS, Ensemble, HealthShare, TrakCare), legacy system modernisation, and full-stack software delivery. We combine deep platform expertise with modern engineering discipline, and operate as senior-only practitioners engaged directly by our clients.

InterSystems capabilities:

Cache ObjectScript development (expert level, 20+ years)
IRIS platform development and migration
Ensemble / HealthShare productions — business services, processes, operations
TrakCare — internal-build experience (InterSystems) and client implementations
HL7 and healthcare integration
Live production support and stabilisation alongside InterSystems Support
Hospital go-live and commissioning experience (including Fiona Stanley Hospital)

Complementary capabilities:

Full-stack development — .NET / C#, Python, Node.js, JavaScript / TypeScript
Enterprise integration (REST / SOAP, messaging)
Databases — SQL Server, Oracle, MySQL / MariaDB, Caché / IRIS globals
DevOps and release engineering — Git, CI/CD, Docker, environment management
Architecture, code review, engineering standards, quality engineering