Engineering the Future of Software
18-19 October 2016: Training
19-21 October 2016: Tutorials & Conference
London, UK

Microservices: Pros and cons

Rachel Laycock (ThoughtWorks), Cassandra Shum (ThoughtWorks)
9:30–9:50 Thursday, 20/10/2016
Location: King's Suite
Average rating: ***..
(3.88, 25 ratings)

It seems as if the whole world of software development is jumping on the bandwagon to move to a microservices architecture. There are a lot of good aspects to architecting a system in this fashion, but what about the downsides? Are microservices a silver bullet and will they solve all our problems?

Rachel and Cassie will present a debate in which they take opposing sides on whether to implement services in a “micro” fashion. In a knockdown style, our discussion will feature the zings and gotchas to each side of the argument. The debate will ultimately leave attendees with a better understanding of the things to consider and practices to follow to decide whether or not microservices are the best approach for them.

Photo of Rachel Laycock

Rachel Laycock


Rachel Laycock is the chief technology officer for North America at ThoughtWorks, where she’s accountable for driving technology strategy and defining areas of focus for the North American business, steering technical capabilities and solutions, and serving as a conduit between global leadership and technology teams on the ground. She’s worked on a wide range of technologies and the integration of many disparate systems and advises clients on technology strategy and identifying and prioritizing technical trends and solutions. She has many years of experience coaching organizations on Agile and continuous delivery technical practices at scale. She’s a member of the technical advisory board to the global CTO, which regularly produces the ThoughtWorks Technology Radar. Her ultimate passion is problem-solving and in her 16+ years of delivering software has discovered that people challenges are often more difficult to solve than software ones.

Photo of Cassandra Shum

Cassandra Shum


Cassie Shum is the technical director and principal consultant for the east portfolio in North America at ThoughtWorks. A software engineer and architect, she’s spent the last nine years focusing on architectures including event-driven systems and microservices, a wide range of technologies with an emphasis on mobile and software delivery excellence, and she’s helped grow delivery practices and technical strategy and support the next generation of technologists. Some of her passions include advocating for women in technology and public speaking. She’s involved in promoting more female speakers in technology.

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Picture of Hugh Greene
24/10/2016 22:18 BST

Hi folks, thanks for the fun presentation :-) Even though microservices aren’t too relevant to my day-to-day work there were some very useful snippets: the Inverse Conway Manoeuvre, and the idea of focusing on products over projects.