David He Email & Phone Number

Redwood City, Ca, Us

We are hiring engineershttps://tinyurl.com/45rpjzmzhttps://tinyurl.com/5x5cwpsy

San Francisco, California, Us

Part time, technical advisor to the Weeknd team (called Candid apps before). Our Android/iOS apps leverage AWS backend using EKS capable to handle scalable and burst traffic, featuring TikTok-style videos, local events hosted by enthusiasts.

Santa Clara, California, Us

I managed teams built scalable data platform ingesting and storing exabytes of security data from customer’s event logs, at 15 million events per second, 4 petabytes on one trillion events daily.- Data lake and query services on BigQuery, Athena/S3- Stream pipelines on Kafka, Dataflow, Flink- Data transformation to data warehouse and ML feature stores, log forwarding to SIEM such as Splunk- Powering key products such as NGFW AIOps, IoT, Cortex XSIAM, XDR, and XSOARAlso managed teams built visualization and reporting products based on the data platform for SOC or security analytics: Log Explore, IOC Search, Threat Insights. Leveraged AI foundation models for copilot and chatbot, ML models for threat alerting.Utilized GCP/AWS for scalability: Kubernetes GKE/EKS, Istio, Cloud SQL / AWS RDB, Redis, Vertex AI MLOps, Prometheus/Grafana. Managed cloud costs efficiently.Key publications: Streaming Infra with Flink - https://tinyurl.com/mt6rt8b2 ; Realtime processing - https://tinyurl.com/437sakc4 ; Dataflow and gRPC- https://tinyurl.com/2p9fy7s2

Sunnyvale, Ca, Us

Managed teams responsible for telemetry data, performance monitoring tools and tuning.• Ingested 1 PB data daily from JavaScript beacons, mobile telemetry APIs, and backend logs.• Built streaming and batch pipelines using Kafka, Samza/Hadoop/Spark, data to MySQL / Pinot for analytics.• Created dashboards and visualization UI for performance, mobile crash, and backend exceptions metrics.• Worked with data scientists, built anomaly detection ML models trained on time series data, provided alerting and root cause analysis.• Found that ads revenue can increase by 1.5% for every 100ms page speed improvement.• Led site speed optimization across teams, achieving page load times under 2 seconds (P90).Key publications:Presentation - http://goo.gl/2k7Gv4 ; Apps optimizations - http://goo.gl/kV15ke ; Bottlenecks analysis: http://goo.gl/5Ubvq5 ; Mobile crash reports - http://goo.gl/NCxhcc

Sunnyvale, Ca, Us

Created and grew the new site speed performance engineering team from scratch to 10+ engineers.

Sunnyvale, Ca, Us

Started off as IC to lead company-wide site speed initiative.

San Jose, Ca, Us

Led teams in the US and China Development Center to build a scalable e-commerce platform.

San Jose, Ca, Us

Started off as Sr Engineer, then Staff Architect, Principal Engineer. Worked on and contributed to:- Web presentation and backend platform- Real user monitoring RUM system and tools- Company's performance awareness by my finding that 10% speed up correlates to 1% revenue up. - CDN to speed up static and dynamic page contents.- Homepage, Check-out, and SYI pages- Data access layer DAL, distributed caching layer

Doctor Of Philosophy - Phd, Electrical Engineering

Bachelor Of Science - Bs, Electronic Engineering

Mba Program