# Norbert Hu

> Software Engineer

Location: San Francisco, California, United States
Profile: https://flows.cv/norberthu

Experience in distributed systems, database engine, virtualization and kernel development; system level and database performance and prototyping development

Specialties: Analysis and prototyping in the areas of server performance and scale

## Work Experience
### Software Engineer @ Temporal Technologies
Jan 2022 – Present

### Software Engineer @ Uber
Jan 2014 – Jan 2022
- Tech lead for Kafka 8
- Worked on storage layer for Cherami (Uber's durable and scalable task queue engine)
- Tech lead for personalized predictions in Uber Maps (powers 55~60% of all trips for pickup and destinations)
- Tech lead for large scale immutable key value store (used by Maps Routing Engine and Tile Display, Uber AI Personalized Predictions platform, etc.)
- Tech lead for 30 person P0 effort to provide real time insights and diagnostics into individual trip data
- Tech lead for infra layer on Project Next in UberAI, Uber's next generation personalized predictions platform

### Software Engineer @ Foursquare Labs, Inc.
Jan 2011 – Jan 2014
- Worked on the Infrastructure Team, building backend distributed systems for serving data at scale

### Software Engineer @ Microsoft
Jan 2009 – Jan 2011
- Designed and built datacenter simulation running on a single commodity hardware by emulating entire datacenter worth of Hyper-V machines to be managed by the product
- Led in-depth analysis and prototyping effort and improved product-wide performance by many folds by alleviating threading and lock contentions, greedy memory allocations, deficient database schema and heavy network traffic

### Kernel Software Engineer @ Microsoft
Jan 2007 – Jan 2009
Hyper-V Hypervisor
- Prototyped and implemented early launch of the hypervisor, focusing on bootstrapping multi-processor systems to initialize physical processors and configure real/protected/long mode memory
- Help drove the performance/scale effort to improve from 24 to 64 logical processors in 6 months
- Analyzed/improved performance in shadow page tables, interrupts, spin locks and NUMA hardware
- Implemented numerous debugger extensions to understand the hypervisor performance

### Software Engineer @ Microsoft
Jan 2003 – Jan 2007
SQL Server & WinFS
- Designed and developed xEvent, a platform enabling eventing in SQL as well as end-to-end tracing
- Applied patent on “Dynamic Database Memory Management Policies” - awarded on November 23, 2010
- Designed and implemented a new dynamic memory management algorithm allowing SQL Server to take advantage of the system file cache and SuperFetch on Vista to perform well on client operating systems and client hardware
- Provided thorough analysis and prototypes which fundamentally changed the product’s design and implementation for better performance in the storage engine and relational engine
- Designed and developed xSim, a C#/XML based multi-threading scenario load simulation framework, which is fully extensible and adds minimal overhead

### Software Engineer @ Microsoft
Jan 2002 – Jan 2003
Exchange Server Scalability Team


## Education
### BS in Computer Science
Carnegie Mellon University

### High School
Taipei American School


## Contact & Social
- LinkedIn: https://linkedin.com/in/norberthu
- GitHub: https://github.com/norberthu

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Source: https://flows.cv/norberthu
JSON Resume: https://flows.cv/norberthu/resume.json
Last updated: 2026-04-11