Johannes Würbach
Staff Software Engineer at Enam Co.
Berlin, Germany
Summary
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Rockstar🎓
Top SchoolJohannes Würbach is a Staff Software Engineer with 14 years of experience building scalable, cloud-native infrastructure and automation tooling from Berlin. He blends hands-on DevOps and backend expertise—working on Kubernetes autoscaling, kOps, Prometheus, and CI/CD tooling—with team leadership experience at Contentful and Principal/Staff roles at Humanitec and an AI startup. Johannes is an active open-source contributor who has improved core projects like the Kubernetes autoscaler, Deis PaaS, and popular tooling such as testem and travis dpl, often focusing on efficiency, reliability and reducing API noise. He has a strong track record of pragmatic infrastructure improvements (fewer AWS API calls, better autoscaling and health checks) and a knack for making complex systems operable and testable. Based in Berlin with a CS background from Freie Universität, he pairs systems-level thinking with practical scripting and API-first automation. An understated detail: he routinely contributes to both low-level build and deployment plumbing and higher-level API documentation and OpenAPI integration.
14 years of coding experience
14 years of employment as a software developer
BS, Informatik, BS, Informatik at Freie Universität BerlinHeinrich-Hertz-Gymnasium, Berlin
English, German
Stackoverflow
11reputation
0reached
1answer
0questions
Github Skills (79)
dependency-management10
sentry10
postgresql10
testing10
bash10
terraform10
ruby10
opentelemetry10
coreos10
heroku10
openapi10
operator10
monitoring10
javascript10
es6-promise10
Programming languages (23)
Github contributions (5)
testem/testem
Dec 2014 - Dec 2022
Test'em 'Scripts! A test runner that makes Javascript unit testing fun.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:85 releases, 273 reviews, 830 commits in 8 years 1 month
Contributions summary:Johannes made several contributions focused on improving the test runner's functionality. They addressed a timeout issue in the CI environment, upgraded the socket.io and express dependencies, and patched the socket.io client for compatibility with PhantomJS. Additionally, the user added an array index of polyfill for IE <= 8, improved the handling of test results, and refactored the console message handling and browser connection into iframes.
javascripttest-runnerunit-testing
kubernetes-sigs/prometheus-adapter
Apr 2020 - Nov 2020
An implementation of the custom.metrics.k8s.io API using Prometheus
Role in this project:Back-end Developer
Back-end DeveloperContributions:2 reviews, 8 commits, 5 PRs in 7 months
Contributions summary:Johannes's commits primarily involve updates related to the `custom-metrics-apiserver` and related dependencies. These updates include code modifications in vendor files, changes to provider and test files, and the addition of the openapi spec. The user also made adjustments to the go.mod file and re-vendored the project dependencies, signifying work on the core functionality of the project.
prometheusk8s-sig-instrumentation
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