# Michael Jahr

> Building something new

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

After 2.5 lovely years in Paris I'm moving back to SF in summer 2024 to build something new!

## Work Experience
### Founding Engineer @ Parallel Web Systems Inc.
Jan 2023 – Present | San Francisco Bay Area
Starting a new company with old friends.

### Engineer @ Stealth Startup
Jan 2023 – Jan 2023
Built ML and LLM-enabled features for a personal finance startup.

### Engineering / Payment Intelligence @ Stripe
Jan 2019 – Jan 2021 | San Francisco Bay Area
I led the Payment Intelligence group responsible for fraud prediction and prevention (Stripe Radar), optimizing authorization rates and minimizing transaction costs, and using ML to help merchants understand their customers and optimize payments.

### Engineering / Marketplace Dynamics @ Airbnb
Jan 2017 – Jan 2019 | San Francisco Bay Area
I led eight engineering teams responsible for the end-to-end homes search and booking experience at Airbnb: guest landing page, sign-in, search results and refinements, home detail, and booking experience; as well as machine learning and relevance for search ranking, customizing the guest experience, and push/email notifications.

### Director of Engineering @ Twitter
Jan 2012 – Jan 2017 | San Francisco Bay Area
I led the teams which owned Twitter's home timeline, using machine learning to show the best tweets; also A/B experiment infrastructure used across the company.  Previously led ads ranking, prediction, and targeting.

### Staff Software Engineer @ Google
Jan 2003 – Jan 2012

### Software Engineer @ Plumtree Software
Jan 2001 – Jan 2003

### Intern @ Sun Microsystems
Jan 2000 – Jan 2001

### Intern @ Information Sciences Institute
Jan 2000 – Jan 2000


## Education
### BS/MS in Computer Science
Stanford University


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

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Source: https://flows.cv/michaeljahr
JSON Resume: https://flows.cv/michaeljahr/resume.json
Last updated: 2026-04-05