Sunny Xu
Quality Assurance Engineer (Contract) at DataAnnotation
California, United States
Summary
👤
Senior🎓
Top SchoolSunny Xu is a Quality Assurance Engineer with nine years of programming and hands-on testing experience who specializes in validating APIs and refining front-end experiences to build dependable, user-friendly systems. Currently contracting at DataAnnotation, Sunny reviews and corrects AI-generated code across languages, authors unit and integration tests, and delivers actionable reports that tighten reliability and maintainability. Trained in computer science at San Jose State and UX/UI at UC Berkeley Extension, Sunny blends backend rigor (Go, Python, SQL) with frontend empathy (React, Next.js, Tailwind) to anticipate real users’ needs and failure modes. Their background across healthcare administration and customer-facing roles informs a practical focus on clear, empathetic error handling and documentation that reduces user anxiety.
9 years of coding experience
1 year of employment as a software developer
San José State UniversityCertificate in User Interfaces/User Experience, User Interfaces/User Experience, Certificate in User Interfaces/User Experience, User Interfaces/User Experience at UC Berkeley ExtensionProgramming languages (1)
Github contributions (5)
xusn-sunny/practice2DGame_java
Nov 2016 - Feb 2017
Contributions:5 pushes, 3 branches in 3 months
xusn-sunny/Starfield-VFX
Jan 2017 - Jan 2017
Contributions:3 pushes, 1 branch in 1 day
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