# Sebastian Messmer

> Software Engineer at WhatsApp

Location: San Mateo, California, United States
Profile: https://flows.cv/sebastianmessmer

## Work Experience
### Staff Software Engineer @ WhatsApp
Jan 2021 – Present | Menlo Park, California, United States
Security & Privacy at WhatsApp

### Senior Software Engineer @ Facebook
Jan 2018 – Jan 2023 | Menlo Park, USA
Working in the area of Machine Learning, developing PyTorch, ONNX and Caffe2.

### Software Engineer @ Facebook
Jan 2016 – Jan 2018 | London, United Kingdom
I was part of the effort to make Facebook's Augmented Reality Platform happen.

### CEO, Founder, Team Leader @ enspire UG
Jan 2011 – Jan 2016 | Karlsruhe
We develop the platform http://sunsteps.org, which helps charities in raising money.
On sunsteps.org, people can donate  to charities without actually giving their own money by doing their online shopping and donating the advertisement fees paid by the shop.

### Software Engineering Intern @ Google
Jan 2014 – Jan 2014 | Mountain View
Working in Google Search, improving performance of Android App Indexing
and developing a machine learning system to improve correctness.
Google Inc. filed a patent for my invention.

### Software Engineering Intern @ Facebook
Jan 2014 – Jan 2014 | Menlo Park
Developed a system which is checking correctness of the Facebook Graph API by automatically rerunning production queries in a test environment.

### Software Engineering Intern @ Google
Jan 2013 – Jan 2013 | New York City
Developed a graph/chart library for displaying monitoring data on a web page.

### Student Assistant @ Karlsruhe Institute of Technology (KIT) / University of Karlsruhe (TH)
Jan 2010 – Jan 2010


## Contact & Social
- LinkedIn: https://linkedin.com/in/sebastian-messmer-077ab382

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