# Jianjie Ma

> Principal Software Engineer, Machine learning at Indeed.com

Location: Mountain View, California, United States
Profile: https://flows.cv/jianjie

Experienced Machine Learning Engineer with a demonstrated history of working in the internet industry. Skilled in Machine learning, Java, Predictive Modeling, Optimization, and Analytics. Strong engineering professional with a Ph.D focused in Electrical and Computer Engineering ( and M.S. in Statistics) from Washington State University.

## Work Experience
### Principal Machine Learning Engineer @ Workday
Jan 2026 – Present
Machine learning engineer for LLM and Agent factory

### Principal Software Engineer @ Indeed.com
Jan 2019 – Present | Sunnyvale
Building recommendation, relevance models and predictive service.
Building enterprise multi-agent conversational service. Prompt engineering and agent evaluation.

### Senior software engineer,  machine Learning @ Uber
Jan 2016 – Jan 2019
Built backend for in-app user feedback report classification,  powered by machine learning, natural language processing, and deep learning.

### Tech Yahoo, Data scientist, Principal @ Yahoo
Jan 2014 – Jan 2016
Ads ranking model, feature engineering and predictive service.

### Distinguished Scientist @ PayPal
Jan 2013 – Jan 2014

### Principal Scientist @ PayPal
Jan 2011 – Jan 2013
Modeling solution  and feature engineering for financial and account-take-over risk detection.

### Sr. Decision Analytics Architect @ Visa Inc.  (Cybersource)
Jan 2007 – Jan 2011

### Product development and management @ Lucent Technologies, Shanghai
Jan 1999 – Jan 2001
Product management on Optical Transport Network, TCP/IP Network and  Digital Video Network solution.


## Education
### Ph.D in Electrical and Computer Engineering
Washington State University

### Master's degree in Statistics
Washington State University

### B.E. in Engineering
Tsinghua University

### M.S. in Electrical engineering
Shanghai University


## Contact & Social
- LinkedIn: https://linkedin.com/in/jianjie-ma-7a5a327

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