Session
Better isolation for your SaaS tenants with Lambda tenant isolation
In a multi-tenant SaaS application, tenant isolation is one of the most challenging problems to solve correctly. If you need strong isolation, a single-tenant approach might seem like the best option, but it comes with its own operational and scalability trade-offs.
In this talk, I will explore AWS Lambda's latest security feature, Tenant Isolation, and how it helps you to maintain a multi-tenant architecture while achieving stronger isolation boundaries with reduced complexity.
This talk is based on the AWS Lambda's latest feature announced in re:Invent 2025 - Lambda Tenant Isolation.
Level: 200
Target audience: Solution architects, Developers, Technical decision makers.
List of conferences:
1. AWS re:Invent re:Cap Netherlands 2026
Talk structure:
* Introduction to single tenancy and multi-tenancy
* Why tenant isolation is hard
* How Lambda tenant isolation works
* Use cases
* Q&A (if applicable)
Pubudu Jayawardana
AWS Community Builder | Senior Cloud Engineer | Serverless enthusiast
Amsterdam, The Netherlands
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