David Qiao
Software Engineer Intern @ ByteDance
About
Completing Computer Science M.S. in June 2027. Currently researching database systems at UCSB. Passionate and accomplished competitive programmer, reaching a peak rating of 2168 (Master) on Codeforces, placing 4th with UCSB at the 2025 Southern California ICPC Regional, 16th at the 2026 ICPC North American Championship, and becoming the first-ever team from UCSB to advance to either the NAC or the ICPC World Finals.Looking for roles in backend development, databases, or computing.Email: qiaodavid5@gmail.com
United States
Cupertino
Computer Software
Vector Databases, Distributed Systems, Operating Systems, Computational Geometry, C++, Java, Python (Programming Language), Git, GraphQL, Database Management System (DBMS), Compilers, Education
Experience
Software Engineer Intern
ByteDance
San Jose, CA
Relational Databases
Undergraduate Learning Assistant
UCSB College of Engineering
Santa Barbara, CA
CS130B - Data Structures & Algorithms 2
Cloud QA Automation Intern
Sonatus
Sunnyvale, California, United States
- Won 2nd place in Business Operations in Sonatus AI Hackathon 1.0 - Engineered reusable test library functions to increase coverage across untested features - Proposed 20+ new tests to strengthen the test plan for a new product - Designed and automated integration tests using Playwright and GraphQL, improving automation coverage by 65%
Programming Instructor
AlphaStar Academy
Santa Clara, California, United States
USACO Silver Basic/Advanced Instructor - Hosted classes in-person and on Zoom - Taught DSA fundamentals to middle/high schoolers - C++/Python/Java
Education
UC Santa Barbara
Computer Science
Distributed Systems Lab (Databases)
UC Santa Barbara
Computer Science
Minor in Mathematics
Cupertino High School
High School/Secondary Diplomas and Certificates
David Qiao's Contact Information
Phone
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