# Xiuming Zhu

> Software Engineer

Location: Sunnyvale, California, United States
Profile: https://flows.cv/xiuming

Experienced in bridging data infrastructure, ML/AI technology, and product execution to deliver end-to-end production systems. I have built and scaled platforms for ad ranking, trust & safety, fraud detection, and LLM-powered applications, with a strong focus on integrating ML/AI into real business workflows rather than treating them as standalone experiments. I enjoy translating complex models into practical, scalable product capabilities that improve user experience and operational efficiency

## Work Experience
### Staff Software Engineer @ Thumbtack
Jan 2024 – Present
Major project
1. Led the development of an AI-powered Trust & Safety platform to enhance user protection and policy enforcement.
2. Optimized ML model accuracy through fine-tuning of LLM.
3. Improved developer productivity and experience through AI-agent-driven workflows
4. Spearheaded the design and implementation of identity verification systems, including background checks and re-entry validations.
5. Developed and optimized scam and fraud detection systems leveraging machine learning and natural language models.
6.  Drove cross-functional collaboration to streamline LLM application deployment and improve operational efficiency.
7.Built and maintained core pricing services.

### Software Engineer @ Thumbtack
Jan 2021 – Present | California, United States
Major projects:
1. lead the effort to improve Trust & Safty platform

### Principal Software Engineer @ Walmart eCommerce
Jan 2018 – Jan 2021 | Sunnyvale, CA
Major projects: 
1. Unified real-time machine learning platform. This platform enables data scientists deploy models written in python to online scoring system (mostly java-based) with little effort. 
2. IOT-related projects .  Make Walmart voice shopping more extensive. 
Related tools & langauges: Spark MLib, tensorflow, MLeap, Scala, Play framework, Python, Java

### Staff Software Engineer @ Walmart Labs
Jan 2016 – Jan 2018 | Sunnyvale, CA

### senior software engineer @ Walmartlabs
Jan 2014 – Jan 2016 | sunnyvale, CA
Major project: Online Advertising System
1. Own the  ETL pipeline of  Ads attribution system. The data pipeline handles upto 1 billion events per day. It consists of both batch and real-time processing functionalities. 
2. Analyzing data with machine learning toolbox, like Spark MLib. 
Related Techniques: Hive, Cassandra, Azkaban, Pig, Spark, sklearn

### Software Engineer @ Amazon
Jan 2013 – Jan 2014
Information Security Department
Related skills: ruby on rails, AWS

### Research Assistant @ Department of Computer Science, The University of Texas at Austin
Jan 2009 – Jan 2013 | Austin, TX
1.Develop real-time, low-power, reliable wireless protocols for
process control system and body medical system.
2.Investigate real-time scheduling problems related to actual process control and body area network.

### Programming Engineer Coop @ Emerson Process Management
Jan 2009 – Jan 2009 | Austin,TX,USA
Design and develop commercializable applications based on WirelessHART for process control industry. Past and on-going projects:  Location awareness application on WirelessHART, wireless process control, WirelessHART test suite, cloud computing service in process control industry.

### Automation Testing engineer @ Siemens Healthcare
Jan 2007 – Jan 2007 | Shanghai, China
Developed SilkTest automation testing scripts to test GUI functionalities of CT software.


## Education
### PHD in Computer Science
University of Texas at Austin

### Master of Engineering (M.Eng.) Pattern Recognition in Computer Engineering
Tongji University

### Bachelor of Science in Computer Science
Tongji University


## Contact & Social
- LinkedIn: https://linkedin.com/in/xiuming-zhu-11671118
- Portfolio: http://www.cs.utexas.edu/~xmzhu

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Source: https://flows.cv/xiuming
JSON Resume: https://flows.cv/xiuming/resume.json
Last updated: 2026-04-12