Jan Chaloupka
Principal Software Engineer at Red Hat
Brno, Southeast, Czechia
Summary
🤩
Rockstar🎓
Top SchoolJan Chaloupka is a Principal Software Engineer and team lead at Red Hat with 12 years of experience designing and operating cloud-native infrastructure and Kubernetes-based platforms. He combines deep backend engineering with DevOps and CI/CD expertise, contributing to high-profile open-source projects like kubectl, kube-apiserver, Cluster API and OpenShift installer. His work spans core scheduler and API improvements, test automation, release tooling, and cloud-provider integrations—often fixing subtle bugs in controller logic and test client behavior. Jan routinely refactors build and generation pipelines, syncs dependencies across complex projects, and improves reliability of installer and operator components. Based in Brno, he brings a mathematically trained mindset from VUT Brno to pragmatic engineering, favoring maintainable automation over ad hoc fixes. Colleagues rely on him for stabilizing tricky reconciliation loops and for translating Kubernetes internals into production-ready workflows.
12 years of coding experience
11 years of employment as a software developer
Ing., Mathematical methods in computer science, Ing., Mathematical methods in computer science at Vysoké učení technické v Brně
Czech, English
Github Skills (57)
dependency-management10
kubernetes10
container10
docker10
apidoc10
scripting10
lifecycle10
testing10
command-line-interface10
bash10
cloud-infrastructure10
kubectl10
microsoft-azure10
resource-management10
etcd10
Programming languages (17)
Github contributions (5)
kubernetes-retired/contrib
Mar 2016 - Feb 2018
[EOL] This is a place for various components in the Kubernetes ecosystem that aren't part of the Kubernetes core.
Role in this project:
DevOps Engineer
DevOps EngineerContributions:89 commits, 86 PRs, 33 pushes in 1 year 10 months
Contributions summary:Jan focused on automating the deployment and management of a Kubernetes cluster using Ansible. They implemented scripts to deploy, restart, and update various components of the cluster, including etcd, master, and node services. Key contributions included modifying Ansible playbooks and scripts to enable features, configure settings, and quote arguments for more reliable execution of the cluster. These changes improved the overall automation and configuration management within the Kubernetes ecosystem.
kubernetes
kubernetes-sigs/descheduler
Mar 2018 - Nov 2022
Descheduler for Kubernetes
Role in this project:Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:764 reviews, 101 commits, 187 PRs in 4 years 8 months
Contributions summary:Jan's contributions center on infrastructure and backend configuration. The commits include changes to shell scripts for build and test environments, alterations to the codebase, and adjustments to command-line parameters, indicating active involvement in automating processes and ensuring code quality. The user refactored the build scripts for code generation. The user also made changes to the project's import path and made code changes.
kubernetesk8s-sig-scheduling
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