# Tiffany Y. > Engineering at TikTok Location: San Francisco Bay Area, United States Profile: https://flows.cv/tiffanyy I'm skilled in full-stack web development and am passionate about distributed systems, cloud-native, observability engineering, and test automation. Graduated from Columbia University, I'm pursuing my second Master's degree at San Jose State University now. Coming from a business and finance background, I became enticed to software engineering through one of my analyst internships, and have been striving to become an influential engineer to create more values at scale. I love music and play excellent piano, guitar, bass drum, and other instruments. I can be reached at tiffany.yxzr@gmail.com, and will be happy to discuss any opportunities, innovative ideas, interesting projects, and common interests! ## Work Experience ### Software Engineer @ TikTok Jan 2024 – Present | San Jose, California, United States ### Quality Assurance Engineer @ Amazon Jan 2023 – Jan 2024 | Sunnyvale, California, United States ### Associate - US Banks Cyber, Tech, InfoSec Risk Management @ Morgan Stanley Jan 2023 – Jan 2023 | Alpharetta, Georgia, United States • Provide independent assessment on the effectiveness of Technology controls on an ongoing basis Identify and assess Technology risks related to key systems supporting the US Banks activities and products. • Analyze risk data and trends, conduct deep dive as needed, and convey results in meaningful risk messages to various stakeholders. • Conduct effective 2LoD challenges of risks and drive the risk remediation. • Review metrics, industry developments, and escalation reports to monitor risk and control-related developments, issues and trends in the management of Technology risk for the US Banks. ### Quality Assurance Engineer @ Amazon Jan 2022 – Jan 2022 | Sunnyvale, California, United States • Designed and optimized test plans for unannounced features of Echo devices. Executed, validated, and continuously tracked test cases and defects for Echo family devices. Worked on project management with stakeholders (TPMs & Software Developers). • Devised automation strategy for features on Linux-based Echo devices. Increased testing efficiency and reduced manual testing time by 30 hours per week by automating test cases through Alexa's in-house Python automation framework. • Integrated device endpoints for the new features and encapsulated Android Debug Bridge (adb) shell commands to enhance the automation framework, utilizing object-oriented design patterns and Python multi-threading. • Carried out Android-based in-house OS pipeline QA maintenance through sanity test automation. ### Economics Teaching Assistant @ Agnes Scott College Jan 2017 – Jan 2019 | Decatur, GA TA for Intro to Microeconomics, Macroeconomics, and Econometrics classes; taught >90 students during walk-in tutoring hours; have consistently been invited as a teaching assistant for 5+ semesters. ### Lead Instructor @ Agnes Scott College Jan 2017 – Jan 2018 | Decatur, GA Designed and presented Chinese lessons to 15 high-school students, with rigorous coursework in reading, writing and conversations; students literacy improved from 0 to 500 Chinese characters within 3 months. ## Education ### Master of Science - MS in Enterprise Risk Management Columbia University ### Master of Science - MS in Data Analytics San José State University ### Summer Session in Computer Science University of California, Berkeley ### Bachelor of Arts - BA in Economics; Minor in Music (Piano) Agnes Scott College ### Bridge to Business Program Georgia Tech Scheller College of Business ### High School Diploma in General Studies Zhengzhou Foreign Language School ## Contact & Social - LinkedIn: https://linkedin.com/in/tiffany-yxzr --- Source: https://flows.cv/tiffanyy JSON Resume: https://flows.cv/tiffanyy/resume.json Last updated: 2026-03-29