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AWS launched Lambda MicroVMs this week, and it solves the very timely problem of "how to create sandboxed environments so we can safely run AI-generated or user-supplied code?" It offers a unique combination of properties amongst AWS's compute services: S

Modern applications rarely do just one thing at a time. An API request creates an order, and then another service needs to reserve stock, another to charge the customer, another to send an email, and so on. In a serverless or event-driven architecture, fo

Step Functions is often used to poll long-running processes, e.g. when starting a new data migration task with Amazon Database Migration. There's usually a Wait - Poll - Choice loop that runs until the task is complete (or failed), like the one below. Pol

Two weeks ago, I gave you the biggest serverless announcements pre-re:Invent (see here). So here are the biggest serverless announcements during re:Invent 2025. Lambda Managed Instances Here's the official announcement. A common pushback against Lambda is

Like London buses, we've waited years for true innovations to the Lambda platform and two came at the same time! Lambda Managed Instances Lambda Durable Functions I will be updating the Production-Ready Serverless workshop to cover these new features in t

Learn how semantic tags can help manage schema coupling in event-driven architectures and eliminate the need for event versioning.

Learn about lambdalith and how it helps you build serverless APIs with AWS Lambda, as well as its pros and cons.

Learn how to handle end-to-end tests involving multiple microservices and ensure their correct functioning and adherence to contracts.

Learn how to implement fine-grained access control using access tokens and scopes and the cost implications of this approach.

Here is the biggest mistake many teams make when they try to adopt serverless and why they ultimately fail. Don't make the same mistake.