Ciaran O'Donnell's Blog

Ciaran O'Donnell

I’m a software architect and technology enthusiast. I work at Avanade leading their Software Engineering & Architecture Center of Excellence. My passion is in finding good software architectures and also good culture, processes, practices etc. I like technology and want the industry to grow, mature and become more inclusive. I also like training for American Ninja Warrior but hold no misconceptions that I’ll ever appear on the show :)

CQRS and Event Sourcing - are they the same?

7 minute read

Command Query Responsibility Seggregation, or CQRS for short, is a really common pattern. Even people who don’t know it often find out they have implemented...

Managing Imposter Syndrome

5 minute read

Imposter syndrome is one of the challenges of modern software engineering, and probably tech in general. Lots of people have it, and they all wish they didn’...

Monoliths to Microservices! And Back Again?

13 minute read

Monoliths were once all the rage, but recently microservices have become the target state for everyone who wants to be trendy. Now it seems people are buckin...

Shu Ha Ri for learning Microservices

6 minute read

Shu Ha Ri is a concept in Japanese martial arts that describes the 3 stages of learning. It’s been borrowed a few times to discuss how people should learn co...

Working from home during Corona

8 minute read

Now almost everyone that can work from home is, I thought I would share my thoughts as someone who has worked from home for years, and manages a team of peop...