# Li Wen

> Life is a wonderful thing

Location: San Jose, California, United States
Profile: https://flows.cv/liwen

I have 10+ years experiences in building high quality software and online service in world-class software/Internet companies. I’ve got deep understanding on developing large projects in agile way. I’m good at finding problems and resolve them proactively. As a tech lead, I can take care of pressures and communicate/coordinate internal/external resources and lead the team work together to achieve the final result.

## Work Experience
### Principal Software Engineer @ Cardlytics
Jan 2021 – Present

### Principal Software Engineer @ Yahoo! Inc.
Jan 2019 – Jan 2021 | sunnyvale
2019年末来到广告组。主要贡献有：
1. 发现现有邮件重定向以及购物小票数据批处理流需要优化。定位了多处性能瓶颈，并重新设计并实现了以上批处理流。使得SLA从24小时以上降到了不到8小时。同时减少了60%的硬件需求。
2. 作为targeting组对Gemini（Yahoo产品原生广告）的联系人，通过提供技术方案、实现新功能以及出现线上问题时共同debug的方式，支持了Gemini对targeting的集成需求。实现了以下功能：
*

### Principal Software Engineer @ Yahoo! Inc.
Jan 2017 – Jan 2019 | Sunnyvale, California, United States
Relocated to the U.S. and working on central tech team to help on multiple projects to build a reliable platform. Including:

1. As the POC of Yahoo Push Notification System for GDPR compliance, designed and implemented the GDPR client with the entire OnePush team to support all GDPR requirements. 

2. Continue supports Image processing/serving service. Implemented features like Smart Crop/Gamma Correction/Color Thief and so on to make sure it meets customers' requests on image processing part. 

3. Designed and implemented YAMAS(Yahoo's monitoring system) v2 collector to replace v1 collector; After the v2 release, the collector as the most unstable component in v1 became super stable.

4. Build and released Comet SDK for iOS to support YAK scenario. (YAK is to allow Yahoo users to sign-in with device push notifications instead of password).

### Tech Yahoo, Software Dev Eng, Sr @ Yahoo! Inc.
Jan 2014 – Jan 2017 | Beijing City, China
带领一个5人团队设计并实现了Yahoo图片在线处理的后台服务的第二版。

1. 稳定服务超过2000 RPS;
2. 自我保护，不会被突发的大流量访问击垮；
3. 将图片平均处理时间从100ms 降到 30ms;

### System Engineer @ Yahoo! Inc.
Jan 2011 – Jan 2014 | Beijing City, China
设计实现了WebGW（Yahoo移动门户）的一个子系统来支持实时改变用户（property）注册信息而不需要产品部署以及服务器重启。

### Software Development Engineer @ Microsoft
Jan 2007 – Jan 2011 | Beijing, China
工作在多个项目：
1. Game client: 为windows 7设计实现一个与X-box live集成的游戏中心；
2. Windows Mobile 6: 邮件和短信模块
3. Windwos Phone 7: 彩信模块
4. Healthcare: 护士服务站模块


## Education
### Master's degree in Computer Science and Technology
Northeastern University (CN)

### Bachelor's degree in Computer Software Engineering
Northeastern University (CN)


## Contact & Social
- LinkedIn: https://linkedin.com/in/willforever

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