Haoran Yu
Senior Software Engineer at LinkedIn
San Francisco Bay Area United States
Summary
🤩
Rockstar🎓
Top SchoolHaoran Yu is a Senior Software Engineer in the San Francisco Bay Area with 13 years of experience building scalable backend systems, metadata platforms, and analytics services. Currently working on Metadata Engineering at LinkedIn, he has a strong track record improving performance and reliability in high-throughput advertising systems at Yahoo!—including a QuickStop throttler that reduced event load by ~97% and CPU optimizations that cut bid-server utilization and p99 latency significantly. He has deep hands-on experience across Kafka, Elasticsearch, Docker, GraphQL, and cloud storage, and has shipped search, file upload, and auth integrations for SaaS platforms. An active open-source contributor, he improved certificate management and Helm hooks for the popular kubeflow/spark-operator, ensuring scripts work both inside and outside pods and strengthening e2e testability. Known for pragmatic performance tuning and cross-system integrations, he blends production-grade engineering with a research-minded background from UC Berkeley.
13 years of coding experience
4 years of employment as a software developer
Bachelor of Science - BS Electrical Engineering and Computer Sciences, Bachelor of Science - BS Electrical Engineering and Computer Sciences at University of California, Berkeley
English, Chinese, German
Github Skills (14)
sh10
kubernetes10
script10
kubernetes-operator10
shell10
devops10
scripting10
kubernetes-pods10
automation9
automations9
helm7
kube-controller-manager5
apache-spark5
spark4
Programming languages (12)
Github contributions (5)
kubeflow/spark-operator
Aug 2018 - Feb 2020
Kubernetes operator for managing the lifecycle of Apache Spark applications on Kubernetes.
Role in this project:
DevOps Engineer
DevOps EngineerContributions:93 reviews, 73 commits, 41 PRs in 1 year 7 months
Contributions summary:Haoran primarily focused on improving and modifying the `hack/gencerts.sh` script, a key component for managing certificates within the Kubernetes environment. Their contributions involved fixing wording, flag names, and modifying the script to function correctly both inside and outside of a pod container, streamlining the certificate generation process for the Spark operator. Additionally, the user added a `delete-resource.sh` script for Helm chart post-delete hooks and contributed to the e2e testing framework.
lifecyclespark-applicationsapacheoperatorspark
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