# Tracy Stampfli

> Principal Engineer at Slack

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

## Work Experience
### Principal Engineer @ Slack
Jan 2021 – Present

### Senior Staff Engineer @ Slack
Jan 2019 – Present

### Staff Engineer @ Slack
Jan 2016 – Jan 2019 | San Francisco Bay Area

### Senior Computer Scientist @ Adobe Systems
Jan 2005 – Jan 2016
• Founding member of the Primetime Video runtime team, developing a cross platform streaming video playback library on platforms including Mac, Windows, Android, iOS, and others. Worked on features including HLS and DASH parsing and playback, ad insertion and metrics, ABR streaming, networking, integration with DRM, and others. 

• Developed many video-related features for the Flash Player, including updates to the decoding pipeline, new codec support, and enhancements to networking code used for video playback. 

• Added support for H264 video playback to Adobe AIR on iOS, and implemented hardware rendering of video in AIR. 

• Architected and implemented fullscreen playback for Flash Player 9, the first technology to support fullscreen playback in the browser. Feature design involved addressing usability and security concerns in addition to technical implementation. 

• Developed the Mac client for the Adobe Connect Meeting application, and handled its integration with the Flash Player. Worked on features such as screen sharing, remote control, accessibility, SSL support, and HTTP tunneling.

### Principal Software Engineer @ Macromedia, Inc.
Jan 2002 – Jan 2005
• Prototyped new products as engineer on the New Business Opportunities team. Several of these prototypes went on to be developed into shipping products, including the online meeting application Macromedia Breeze/Adobe Connect.

• Responsible for cross-platform screen sharing, video and audio streaming, and networking features in various products.


## Education
### MA in Mathematics
University of California, Berkeley

### BS in Mathematics
Brown University


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

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