# John Tsai

> Software Engineer at Virtu Financial

Location: New York, New York, United States
Profile: https://flows.cv/johntsai

## Work Experience
### Software Engineer @ Virtu Financial
Jan 2025 – Present | New York, New York, United States

### Senior Software Engineer @ Anomalo
Jan 2024 – Jan 2025

### Software Engineer @ Citadel
Jan 2022 – Jan 2024 | New York, New York, United States

### Site Reliability Engineer @ Citadel
Jan 2019 – Jan 2022 | New York, New York, United States

### Engineer in Residence @ Facebook
Jan 2019 – Jan 2019 | Newark, New Jersey, United States
Visiting computer science lecturer at the New Jersey Institute of Technology

### Solutions Engineer @ Facebook
Jan 2017 – Jan 2018 | New York, New York, United States

### Co-Founder @ Tech Startup
Jan 2015 – Jan 2017 | Washington, District of Columbia, United States

### Senior Software Engineer @ Applied Predictive Technologies
Jan 2015 – Jan 2015 | Washington, District of Columbia, United States

### Software Engineer @ Applied Predictive Technologies
Jan 2013 – Jan 2015 | Washington, District of Columbia, United States

### Teaching Assistant @ Harvard University Extension School
Jan 2010 – Jan 2013 | Cambridge, Massachusetts, United States
TA for multivariable calculus and linear algebra

### Software Engineer Intern @ Google
Jan 2012 – Jan 2012 | New York, New York, United States


## Education
### Bachelor of Arts (B.A.) in Computer Science
Harvard University


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

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Source: https://flows.cv/johntsai
JSON Resume: https://flows.cv/johntsai/resume.json
Last updated: 2026-04-13