Jeroen Op 't Eynde
Systems Engineer at grafana
Belgium, United States
Summary
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RockstarJeroen Op 't Eynde is a seasoned systems engineer with 12 years of hands-on experience in Linux, Kubernetes, and cloud-native tooling, operating as a freelance engineer out of Belgium. He contributes to prominent open-source projects—most notably Grafana Tanka and jsonnet-libs—where he implemented Helm templating integration and enhanced Kubernetes deployment and monitoring patterns. His work shows a knack for bridging DevOps and backend engineering: building native functions, rendering kustomize into jsonnet, and hardening Prometheus/Grafana alerts for resilient production behavior. Comfortable with automation and infra refactors, he also brings practical insights like deploying pull-through Docker registries and streamlining helm-based workflows.
12 years of coding experience
Github Skills (28)
kubernetes10
docker10
observability10
alertdialog10
alertifyjs10
configuration-management10
alertview10
grafana10
alerts10
dockers10
cicd10
go10
prometheus10
helm10
configuration-file10
Programming languages (22)
Github contributions (5)
grafana/jsonnet-libs
Jan 2020 - Jun 2022
Grafana Labs' Jsonnet libraries
Role in this project:
DevOps Engineer
DevOps EngineerContributions:171 reviews, 138 commits, 224 PRs in 2 years 4 months
Contributions summary:Jeroen's contributions focused on enhancing the infrastructure and automation aspects of the project. They made significant changes to the Kubernetes configuration by refactoring and introducing new libraries for services like the termination handler and docker registry, and for improving the use of Prometheus. Their work includes adding features to deploy a docker registry as a pull-through cache and updating and streamlining existing setups using helmraiser. The commits demonstrate a strong emphasis on improving the deployment, operability and monitoring setup within the Kubernetes environment.
monorepoobservabilityjsonnetprometheusgrafana
grafana/tanka
Aug 2020 - Dec 2022
Flexible, reusable and concise configuration for Kubernetes
Role in this project:Backend & DevOps Engineer
Backend & DevOps EngineerContributions:1 release, 176 reviews, 98 commits in 2 years 4 months
Contributions summary:Jeroen implemented a new native function, `helmTemplate`, to integrate Helm templating within the Tanka framework. This involved creating a `HelmConf` struct, converting configurations to arguments, and executing the `helm template` command. They also added unit tests for the new functionality and documented the use of environment variables. Further, the user extended the functionality of the project by rendering kustomize into jsonnet.
cuelangconfigurationkubernetes-deploymentnoyamlk8s
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