--- title: "Michael Walmsley (@walmsles) | Hashnode" description: "AWS Community Builder (Serverless). Read the latest articles by Michael Walmsley on Hashnode." url: "https://hashnode.com/@walmsles" --- @walmsles # Michael Walmsley @walmsles · Melbourne, Australia · Joined October 2021 AWS Community Builder (Serverless) [Website](https://blog.walmsles.io/) ### [Web Sockets Don't Pub-Sub](https://blog.walmsles.io/web-sockets-dont-pub-sub?utm_source=hashnode&utm_medium=feed) Web Sockets have become a fundamental technology in modern web development, but their true function is often misunderstood. The killer use-case for Web Sockets has been in the development and proliferation of chat apps where users jump into a channel... 11 min read · [blog.walmsles.io](https://blog.walmsles.io/web-sockets-dont-pub-sub?utm_source=hashnode&utm_medium=feed) [Mar 2, 2025](https://hashnode.com/posts/web-sockets-dont-pub-sub/67c44f305929561a46e7be6f) ### [Introducing ServerlessDNA.com - A New Site dedicated to Serverless!](https://blog.walmsles.io/introducing-serverlessdnacom-a-new-site-dedicated-to-serverless?utm_source=hashnode&utm_medium=feed) One thing I have learned over the past year while writing blog articles on Serverless to help people learn is that it is not straightforward, and the skills you need are more than just writing software or deploying infrastructure. You need to underst... 2 min read · [blog.walmsles.io](https://blog.walmsles.io/introducing-serverlessdnacom-a-new-site-dedicated-to-serverless?utm_source=hashnode&utm_medium=feed) [Jan 29, 2023](https://hashnode.com/posts/introducing-serverlessdnacom-a-new-site-dedicated-to-serverless/63d5c82b14664025306b3662) ### [How SAM CLI and AWS Lambda Powertools enable University Students to Start building solutions in less than 60 minutes](https://blog.walmsles.io/how-sam-cli-and-aws-lambda-powertools-enable-university-students-to-start-building-solutions-in-less-than-60-minutes?utm_source=hashnode&utm_medium=feed) I am an Advanced Application Engineering Manager at Accenture in Australia and work hard advocating for Serverless Technology, accelerating teams new to building Serverless solutions on AWS. I design and build Serverless solutions using Event-Driven ... 7 min read · [blog.walmsles.io](https://blog.walmsles.io/how-sam-cli-and-aws-lambda-powertools-enable-university-students-to-start-building-solutions-in-less-than-60-minutes?utm_source=hashnode&utm_medium=feed) [Jan 14, 2023](https://hashnode.com/posts/how-sam-cli-and-aws-lambda-powertools-enable-university-students-to-start-building-solutions-in-less-than-60-minutes/63c2651c86920af24335158b) ### [Serverless Testing, Part 3: Simplify Testing with SOLID Architecture](https://blog.walmsles.io/serverless-testing-part-3-simplify-testing-with-solid-architecture?utm_source=hashnode&utm_medium=feed) Article on Testing Serverless architectures using SOLID and Hexagonal software architecture principles without needing to mock AWS SDK Calls at all! 18 min read · [blog.walmsles.io](https://blog.walmsles.io/serverless-testing-part-3-simplify-testing-with-solid-architecture?utm_source=hashnode&utm_medium=feed) [Dec 30, 2022](https://hashnode.com/posts/serverless-testing-part-3-simplify-testing-with-solid-architecture/63ae725a3d3781ebc3ff5caf) ### [Understanding Lambda Execution Models](https://blog.walmsles.io/understanding-lambda-execution-models?utm_source=hashnode&utm_medium=feed) Know the Services you are using; really know them. Understanding how they work and fail is essential for constructing a resilient serverless architecture. This is the number one piece of advice I share with new Serverless Engineers. Knowing the AWS ... 5 min read · [blog.walmsles.io](https://blog.walmsles.io/understanding-lambda-execution-models?utm_source=hashnode&utm_medium=feed) [Apr 30, 2022](https://hashnode.com/posts/understanding-lambda-execution-models/626cd3f0a2d355d4df43dfe4)