# Andrew Guan > Engineer at Retool | Stanford CS alum Location: San Francisco Bay Area, United States Profile: https://flows.cv/andrewguan ## Work Experience ### Software Engineer @ Retool Jan 2023 – Present | San Francisco, California, United States ### Staff Security Researcher @ Palo Alto Networks Jan 2020 – Jan 2023 ### CS Instructor @ Stanford University Jan 2019 – Jan 2020 Head TA (CS155: Computer and Network Security) Course Assistant (CS152: Trust and Safety Engineering) Teaching Assistant (CS106B: Programming Abstractions) ### Machine Learning Researcher @ UnifyID Jan 2019 – Jan 2019 ### Machine Learning Researcher @ The University of Tokyo Jan 2018 – Jan 2018 | Tokyo, Japan ### Software Engineer @ Twitter Jan 2017 – Jan 2017 | San Francisco Bay Area ## Education ### Master of Science - MS in Computer Science - Computer and Network Security Stanford University ### Bachelor’s Degree in Symbolic Systems Stanford University ## Contact & Social - LinkedIn: https://linkedin.com/in/guanandrew --- Source: https://flows.cv/andrewguan JSON Resume: https://flows.cv/andrewguan/resume.json Last updated: 2026-04-11