Jonathan Berkhahn
Software Engineer at IBM
San Jose, California, United States
Summary
🤩
Rockstar🎓
Top SchoolJonathan Berkhahn is a software engineer with 12 years’ experience building and hardening cloud-native and distributed systems, currently based in San Jose and serving as co-chair of Kubernetes' Service Catalog. He brings deep back-end and DevOps expertise from long-term contributions to Cloud Foundry and Kubernetes projects, improving reliability through CI/CD, testability, and robust plugin/configuration frameworks. His work spans critical pieces of the ecosystem—kubectl utilities, operator-sdk scorecard testing, CF router resiliency, and Cloud Controller service binding—demonstrating a knack for reducing flakiness in production workflows. Jonathan’s contributions emphasize maintainability and observability: refactors that enable unit testing, sensible timeouts, and safer reconnection semantics. He holds an MS in Computer Science from Virginia Tech and quietly pairs protocol-level thinking with pragmatic engineering to keep large-scale platforms running.
12 years of coding experience
BS, Computer Science, BS, Computer Science at Virginia Tech
Github Skills (35)
unit-testing10
kubernetes10
docker10
cloud-foundry10
nat10
apidoc10
back-end-development10
testing10
plugin-development10
command-line-interface10
configuration-management10
internationalization10
dockers10
cicd10
ruby10
Programming languages (10)
Github contributions (5)
kubernetes-retired/service-catalog
Nov 2017 - Nov 2021
Consume services in Kubernetes using the Open Service Broker API
Role in this project:
Back-end Developer
Back-end DeveloperContributions:13 releases, 1 review, 80 commits in 4 years 1 month
Contributions summary:Jonathan focused on improving the `kubernetes-retired/service-catalog` project. They implemented features to enforce strict increasing broker relistRequests. The user also added unit tests for binding and broker backends and further unit tests for class, instance, and plan backends. In addition, they added tests to enable namespaced resources within the service catalog.
apibrokeropen-service-broker-apibroker-apiconsume
operator-framework/operator-sdk
Mar 2020 - Jan 2023
SDK for building Kubernetes applications. Provides high level APIs, useful abstractions, and project scaffolding.
Role in this project:Backend & DevOps Engineer
Backend & DevOps EngineerContributions:95 reviews, 45 commits, 88 PRs in 2 years 10 months
Contributions summary:Jonathan primarily contributed to improving the testability and maintainability of the `scorecard` component, a core feature of the operator-sdk for Kubernetes applications. They refactored the scorecard command to enable more robust testing. Additionally, the user added unit tests for several subcommands, including `bundle`, `alpha scorecard`, `completion`, `olm`, `run` and `version`, demonstrating a focus on improving code quality and ensuring the reliability of the operator-sdk. These changes involved modifications to the codebase to facilitate testing and enhance the overall development process.
kubernetes-applicationsproject-scaffoldingscaffoldinghigh-leveloperator
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