SUN Haoyu
Senior Software Engineer at Genuine Impact
Antibes, Provence-Alpes-Côte d'Azur, France
Summary
🤩
Rockstar🎓
Top SchoolSUN Haoyu is a senior software engineer with 11 years of experience designing high-performance distributed systems, large-scale caches, and OLTP middleware, currently contributing to OpenShift's monitoring stack at Red Hat from Antibes, France. His background blends low-level systems work in C/C++—including a hybrid SSD/RAM storage backend and cache consistency mechanisms—with data engineering and full-stack projects using Python, Flask, TypeScript and PostgreSQL. He has a strong operational mindset, having coordinated migrations across 3,000+ servers, supported SRE on-call rotations, and contributed DevOps improvements to prominent open-source monitoring projects like kube-prometheus and cluster-monitoring-operator. Notably, his open-source contributions emphasize reliability and security—adding PodDisruptionBudgets, TLS configuration, and alerting improvements for Prometheus/Thanos. Comfortable moving between kernel tuning, backend architecture and analytics dashboards, he delivers pragmatic, performance-first solutions that simplify operations and scale. Educated in applied IT in France, he pairs deep systems craft with an eye for practical automation and observability.
10 years of coding experience
8 years of employment as a software developer
Information Technology, Information Technology at Institut national des Sciences appliquées de LyonInstitut national des Sciences appliquées de Rouen
Github Skills (23)
kubernetes10
docker10
dockers10
go10
prometheus10
openshift10
jsonnet10
kubernetes-pods10
alarmmanager10
notificationmanager10
operator10
exporter9
prometheus-exporter9
yaml9
thanos9
Programming languages (11)
Github contributions (5)
openshift/cluster-monitoring-operator
May 2021 - Jan 2023
Manage the OpenShift monitoring stack
Role in this project:
DevOps Engineer
DevOps EngineerContributions:163 reviews, 68 commits, 97 PRs in 1 year 8 months
Contributions summary:SUN's commits primarily revolve around the management and configuration of the OpenShift cluster monitoring operator. Their contributions include bumping versions of dependencies like the Prometheus Operator and Prometheus itself, reflecting the user's responsibility for keeping the monitoring stack up-to-date. Furthermore, the user implemented the addition of PodDisruptionBudget to ThanosQuerier and configuring the alerting configurations, showcasing their understanding of high-availability requirements and alerting management within the cluster. Additionally, the user worked on the configuration for TLS certificates and Prometheus endpoints, reflecting their involvement in securing the infrastructure.
monitoringkubernetesgrafanaopenshift
prometheus-operator/kube-prometheus
Aug 2021 - Jan 2023
Use Prometheus to monitor Kubernetes and applications running on Kubernetes
Role in this project:DevOps Engineer
DevOps EngineerContributions:10 reviews, 11 commits, 8 PRs in 1 year 5 months
Contributions summary:SUN's contributions primarily focused on improving and maintaining the `kube-prometheus` project. They removed deprecated label selectors and updated dependencies for better performance and security. The user added features to improve the node exporter and prometheus adapter, demonstrating an understanding of monitoring and operational aspects of the project. The user also introduced functionality for rule patching and exclusion.
monitorcluster-monitoringalertsdashboardsoperator
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