SREday

Site Reliability, DevOps and Cloud

November 7, 2025 ING Cedar, Amsterdam, Netherlands

1
Day
25+
Speakers
2
Tracks
200+
Attendees

From Spot Ocean to Karpenter - One Year Later

Marius Kimmina
adjoe
Abstract

Over One year of operating Karpenter in production across multiple Kubernetes Clusters has taught us at adjoe many valuable lessons that we want to share in this talk. We will talk about how we handled the migration process, why we build a custom controller to handle broken nodes as well as how we have optimized our nodepools to avoid too frequent disruptions and much more

Bio

Marius, a dedicated DevOps Engineer at Hamburg’s fast-growing adtech company, adjoe. Since joining over three years ago, Marius has been on a mission to enhance the reliability and scalability of our backend — an event-driven microservice architecture written in Go and powered by Kubernetes. His passion for coding and Kubernetes doesn’t stop here. Marius also actively contributes to open-source projects, including CoreDNS and Karpenter, constantly pushing his skills and knowledge forward. When he’s not scaling systems or optimizing code, you’ll find him hosting board game nights, tackling bouldering walls, or setting off on adventures across Asia.

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