Callum Whyte
Callum is a lead developer who’s expertise lies in building robust scalable microservice and serverless systems on the .NET stack, as well as Xamarin mobile apps and websites with the Umbraco CMS.
Away from his desk you can find him organising community events; from local meetups and hackathons to the annual 300 person Umbraco UK Festival conference. He’s an active contributor to open source projects, as well as co-host of a weekly YouTube series “UmbraCoffee” and a regular speaker at events all over the world!
From Monolithic Monster to Majestic Microservice App
Callum will share the process followed and challenges faced from incrementally rewriting a large monolithic medical system (used by the NHS and other global health institutions) into a majestically constructed microservices architecture.
He’ll discuss how the team identified, prioritised and replaced key components of an existing application as independent services; the difficulty but importance of refactoring the legacy codebase to be event oriented, methods used to effectively “strangle” parts of the live system as they were replaced, and what the team needed to do to rapidly scale up a creaking system against a tight Christmas deadline…
He will also take a look at the infrastructure components used to quickly get a large microservices system up and running, focusing on utilising Azure Functions and API Management Gateway, and touch upon the learning curve that working with these unfamiliar technologies had on the growing team.
Callum is a lead developer who’s expertise lies in building robust scalable microservice and serverless systems on the .NET stack, as well as Xamarin mobile apps and websites with the Umbraco CMS.
Away from his desk you can find him organising community events; from local meetups and hackathons to the annual 300 person Umbraco UK Festival conference. He’s an active contributor to open source projects, as well as co-host of a weekly YouTube series “UmbraCoffee” and a regular speaker at events all over the world!
From Monolithic Monster to Majestic Microservice App
Callum will share the process followed and challenges faced from incrementally rewriting a large monolithic medical system (used by the NHS and other global health institutions) into a majestically constructed microservices architecture.
He’ll discuss how the team identified, prioritised and replaced key components of an existing application as independent services; the difficulty but importance of refactoring the legacy codebase to be event oriented, methods used to effectively “strangle” parts of the live system as they were replaced, and what the team needed to do to rapidly scale up a creaking system against a tight Christmas deadline…
He will also take a look at the infrastructure components used to quickly get a large microservices system up and running, focusing on utilising Azure Functions and API Management Gateway, and touch upon the learning curve that working with these unfamiliar technologies had on the growing team.