Zhaoyu (Joey) Luo

Notion

Staff Software Engineer, Infrastructure & Product Security · 2022-12 - Now

• Product Security since 2024-11: Led the design and implementation of critical encryption infrastructure that enabled product adoption by world-class customers. (reference)
• Multi-region infra: Unblocked millions of ARR growth by designing and implementing the core infrastructure enabling multi-region scaling and GDPR compliance support. (reference)
• Datastore SLA: Established and achieved 99.99% reliability metrics across the sharded PostgreSQL by DB connection proxy isolation, dynamic connection pool tuning, Postgres query/index optimization.
• Data Migration: Enabled 31 engineering projects to transform billions of Postgres records in the first year safely and reliably by building and deploying a data migration system.

Peloton Interactive

Site Reliability Engineering Manager · 2022-02 - 2022-12

• Hands-on TLM: Managed enterprise SRE team of 7 direct reports and 2 offshore teams supporting AWS cloud engineering.
• Assisted with Amazon B2B platform launch that boosted stock price by 20.36%. SAP ERP system integration. Experienced with SOX and GDPR compliance in pre-IPO organization.
• Established company-wide standards on S3/SFTP data ingestion and HTTP custom headers.
• Established org-wide prod/dev data separation practice and team SLA with intake process.

Senior Data Engineer (Data Infra Pod Lead) · 2020-08 - 2022-02

• Built ETL and data lake streaming solution with: Kubernetes/EMR/Airflow/Hudi/Spark/DBT/data catalog.
• Airflow Kubernetes Migration: Migrated 200+ ETL jobs / data pipelines to self-hosted Airflow on Kubernetes with 34 developers onboarded without business interruption.

Senior Software Engineer, Infrastructure (Datastore & Observability) · 2019-01 - 2020-08

• Kubernetes Migration Observability Leader: Migrated all backend services from EC2/ECS to Kubernetes without downtime. Worked with 50+ engineers to ensure metric/trace/sentry/logging pipeline/Datadog mcrouter agent consistency.
• ORM Storage Migration: Led 4 people to migrate ORM's underlying storage from Redis to 66 Postgres tables without downtime.

Facebook

Production Engineer (Messaging Infrastructure) · 2017-12 - 2019-01

Messenger Messaging Infrastructure: Responsible for monitoring and live troubleshooting the world-class highly scalable and reliable pub/sub system powering Messenger, encompassing storage and caching, real-time message routing and delivery, and messaging endpoints for browsers and mobile devices.

Uber

Software Engineer, Infrastructure (Observability) · 2016-01 - 2017-11

• Part of Uber's observability infra group that powered metrics ingestion/storage/monitoring/alerting.
• Built Uber's "Datadog/Pagerduty" that supports 100k alerts with multi-region setup.
• Migrated the first microservice from Uber to AWS (DNS/load balancer/tcpdump ngrep Wireshark/CSRF attack/OneLogin OAuth SSO integration).

LinkedIn

Site Reliability Engineer Intern · 2015-06 - 2015-08

Streamed Linux CPU performance profile FlameGraph to frontend UI.

Jiepang.com / Guohe Ad

Software Engineer, Infrastructure / Lead Database Admin · 2012-05 - 2014-06

• Migrated 50M photo metadata from MongoDB to MySQL with 0 downtime.
• Migrated 50M photo content with a high-performance file replication service in C (uses Linux syscall inotify and epoll).

Nomura Research Institute

System Engineer · 2011-07 - 2012-04

Managed 7-Eleven IT infra: Apache, DNS, DHCP, Squid, Mail, Sphinx.