Yuhao Chen

Teams Webinar Product Team

• Working on large online virtual events features for Microsoft Teams with millions of users and growing fast
• Led effort in development, testing, and optimization of the team's privacy data pipeline that processes ~10M signals daily across all regions
• Made key trade-off decisions considering requirement, performance, and cost
• Optimized the pipeline using a metric-driven approach and reduced machine resource usage by 50% and NoSQL database throughput usage by 70%
• Led multiple service and infra improvement efforts that helped save costs and improve service reliability
• Configured cloud components such as FrontDoor, Traffic Manager, Load Balancer
• Clusters, Vault, VM Scale Sets, Queues, NoSQL database (Cosmos DB) etc
• Shipped new APIs supporting webinar management by tenant admin (search, view, delete webinar)
• Worked with the UX and design teams to integrate the API with the client
• Led efforts in improving service devops cycle, testability and debuggability that massively increased engineering efficiency and improved service test coverage from 15% to 65% (and growing)
• Drafted guidelines for the team to pick and choose optimal solution among several alternatives and helped team onboarding to standardized unit test patterns (AAA patterns), integration tests, NightWatch tests, etc
• Worked with software development and testing team members to design and develop robust solutions to meet client requirements for functionality, scalability, and performance.
• Updated old code bases to modern development standards, improving functionality.
• Integrated third-party tools and components into applications.
• Tested methodology with writing and execution of test plans, debugging and testing scripts and tools.

Family.microsoft.com Product Team

• Worked on large-scale, high availability service applications that enhance children’s digital safety and wellness
• Family.microsoft.com has a MAU of 20M and service QPS of ~55k
• Led improvements of notifications fan-out service to support omni-channel delivery experience (SMS, WNS, email, feed) with high reliability and reduced duplicates
• Led design and shipped various cross-disciplinary milestone projects that filled gaps in E2E user experience and helped improve user engagement metrics
• Projects include family activity notifications and feeds, device monitoring and reporting, ITP (identity theft protection) with
• MS Defender integration, adult graduation scenario (for kids of age 18+ to disable parental controls), etc
• Owner of two business critical services with 99.95% reliability requirement and QPS >1k
• Actively involved in partner onboarding, code reviews, technical design and reviews, livesite investigation, security and compliance assessments, etc
• Drove various engineering improvements that enhanced code readability and maintainability, background job testability, service reliability, etc.

• Supported philanthropic effort by redesigning and implementing core features and components of the website in HTML5 to replace the unsupported Flash components
• Added support for third party OAuth login (e.g
• Sign in with Google) to allow viewers to more easily sign in and start making contributions right away.