# josephine pfeiffer

❯ neofetch
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hi@josie.lol
-------------
senior consultant @ red hat
zurich, switzerland
cloud-native, foss, gnu/linux, infosec, infra, sre
blog, code(github, red hat gitlab, sygnum gitlab), linkedin
email

❯ cat bio.txt

generally competent computer magician in the areas of
infrastructure, security, and developer experience.

❯

❯ ls -la /crt/

Google Cloud Professional Cloud Architect (2025)
IBM z/OS Mainframe Practitioner (2025)
Red Hat Certified Architect (2024)
Red Hat Certified Specialist in Multi-Cluster Management (2024)
Red Hat Certified Specialist in OpenShift Data Foundation (2024)
Red Hat Certified OpenShift Administrator (2023)
Red Hat Certified Specialist in Containers (2023)
AWS Certified Security - Specialty (2023)
Certified SAFe 5 & 6 Product Owner/Product Manager (2022 & 2023)
AWS Certified Solutions Architect – Professional (2022)
scrum.org Professional Scrum Master (PSM I) (2019)

view all certifications on credly →

❯ grep "volunteer" ~/.profile

Open Infra Foundation: Programming Committee Member, Open Infra Summit (2025)
The Linux Foundation: Subject Matter Expert/Exam Developer, Certified Backstage Associate Exam (2024)

❯ gh repo list --fork --json name,description,stargazerCount,forkCount,updatedAt --jq '.[] | "\(.name) ★\(.stargazerCount) 🍴\(.forkCount) - \(.description)"'

archlinux ★2483 🍴621 - AUR package maintainer, contributed to core packages
kube-burner ★152 🍴48 - MAINTAINER - Kubernetes performance testing tool
backstage ★24.1k 🍴4.2k - Developer portal framework with 14 contributions

❯ tree /talks --dirsfirst

    /talks
    ├── Mainframes Aren't Dead, They're Just Running Kubernetes Now
    │   ├── The Linux Foundation Open Source Summit North America (2025)
    │   └── Kubernetes Community Day Budapest (2025)
    ├── A Hitchhiker's Guide to Developer Productivity
    │   └── Swiss Dev Confederation (2024)
    ├── 9001 Ways to break out of a container
    │   └── Bsides Bristol (2024)
    └── Would You Like Fries With That? AI for Developer Productivity
        ├── Uphill conf (2024)
        └── Kubernetes Community Day Zurich Rejects (2024)

❯ rssfetch rss.xml --format=short

    2025-01-12 How golden paths improve developer productivity
    A deep dive into the implementation of golden paths for streamlining developer workflows.2024-11-14 Unleashing the T-Rex: How Containers Sometimes Fail to Contain
    An exploration of container escape vulnerabilities and mitigation strategies.2024-08-23 Achieve more with less using Red Hat Developer Hub's self-service features
    How to leverage Red Hat Developer Hub's self-service capabilities to boost development team efficiency.2024-01-15 CVE-2023-6944
    Security vulnerability disclosure and technical analysis of CVE-2023-6944.