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The AWS Developers Podcast
The AWS Developers Podcast

Evolving Lambda: from ephemeral compute to durable execution

04 March 2026 1:06:41 Amazon Web Services

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About this episode

In this episode, Romain sits down with Michael Gasch, Product Manager at AWS for Lambda Durable Functions, to explore one of the most exciting launches in the Serverless space in recent years. Michael shares the full story: from the early days of Lambda and the evolution of the serverless developer experience, to the challenges developers face when building multi-step, stateful workflows — and how Durable Functions addresses them natively within Lambda. Discover the evolution of AWS Serverless and why last year was 'the year of Lambda', key launches including IDE integrations, Lambda Managed Instances, and Lambda Tenant Isolation. Learn what Lambda Durable Functions are and what they are not, the checkpoint-replay model and how it enables resilient, long-running executions, and wait patterns including simple wait, wait for callback, and wait for condition. Explore real-world use cases: distributed transactions, LLM inference orchestration, ECS task coordination, and human-in-the-loop workflows. Michael shares unexpected feedback from customers about architectural simplification, how coding agents like Kiro dramatically accelerate writing Durable Functions, and when to choose Durable Functions vs. Step Functions vs. SQS/SNS. Plus, what's coming next: more regions, and the Java SDK (now available!).

With Michael Gasch, Product Manager, AWS Serverless (Lambda Durable Functions)

    • Lambda Durable Functions documentation
      AWS Regional Services availability page
      Durable Functions SDK on GitHub
      AWS SAM - Serverless Application Model
      Designing Data-Intensive Applications by Martin Kleppmann
      Kiro IDE - AI-powered development environment

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