# josie.lol

> Personal website of Josephine Pfeiffer, Senior Software Engineer at Red Hat. Linux userspace networking, Kubernetes (SIG Autoscaling, WG Node Identity), Arch Linux on s390x, Karpenter for IBM Cloud.

josie works on infrastructure and security. she spends work hours on linux userspace networking, free time on porting distros to weird architectures, and contributing to CNCF projects. she unironically thinks s390x is cool and will argue about it. occasionally writes crystal, and likes electronics with transparent cases.

## About

- [Homepage](https://josie.lol/): bio, certifications, sameAs links
- [About](https://josie.lol/about/): projects, affiliations, FAQ

## Talks

- [From Static Tokens to Attestation: The Evolution of Secure Node Joining](https://josie.lol/talks/#talk-secure-node-joining): This panel examines secure node joining in modern Kubernetes environments where tools like Karpenter and Cluster API enable rapid infrastructure scaling. We discuss defining a root of trust, validatin
- [my mainframe runs arch btw](https://josie.lol/talks/#talk-arch-mainframes-lightning): A lightning talk exploring the journey of getting Arch Linux running on IBM mainframe hardware. Because if it runs Linux, it should run Arch.
- [Beyond CAS: Why the world needs another Kubernetes Cluster Autoscaler](https://josie.lol/talks/#talk-beyond-cas-karpenter): Kubernetes' Cluster Autoscaler (CAS) has been the standard for dynamic scaling, but it suffers from limitations that hamper its performance in some scenarios. This talk introduces Karpenter, a modern 
- [Mainframes Aren't Dead, They're Just Running Kubernetes Now](https://josie.lol/talks/#talk-mainframe-kubernetes): Mainframes have been declared dead more times than JavaScript frameworks have been invented—but here they are, still running the backbone of global finance, government, and enterprise computing. And n
- [A Hitchhiker's Guide to Developer Productivity](https://josie.lol/talks/#talk-developer-productivity-guide): This talk explores how Golden Paths and Software Templates can revolutionize developer productivity by providing prescribed, automated practices for common development tasks. Using "The Hitchhiker's G
- [9001 Ways to break out of a container](https://josie.lol/talks/#talk-container-breakouts): Container security is essential, but what happens when the bad guys get creative? In "9001 ways to break out of a container," we’ll explore the fascinating and terrifying techniques hackers use to esc
- [Would You Like Fries With That? AI for Developer Productivity](https://josie.lol/talks/#talk-ai-developer-productivity): In this talk, Kyra and I showcased how we successfully integrated an AI-powered recommendation engine into Red Hat's Internal Developer Platform, based on Backstage.io, to enhance developer productivi