Open Source Summit + Embedded Linux Conference North America 2026

When our platform served a SaaS company growing from
9M$ to $100M ARR, we faced a decision every scaling team encounters: stay on Heroku or migrate to Kubernetes. We chose migration. This talk shares the real lessons from moving 47 microservices to EKS while maintaining 99.9% uptime.

I will cover the migration patterns that worked, the ones that failed spectacularly, and the operational changes that made the difference between success and rollback. You will learn how we reduced API latency from 700ms to 70ms, why our first three migration attempts failed, and what "production ready" actually means when your customers include enterprise clients with strict SLAs.

This is not a vendor pitch or theoretical framework. It is a practitioner's account of what happens when you bet your platform on Kubernetes and have to deliver.

Attendees will leave with a realistic migration checklist, common failure patterns to avoid, and honest metrics on what to expect during and after migration.