Zhongwei (Joe) Teng is an accomplished AI Research Engineer II at Duolingo since January 2023, with a robust background in research and software engineering. Prior experience includes a role as a Research Assistant at Vanderbilt University, where contributions involved data visualization from hand-drawn images, translating natural language to Bash commands, and automatic speech verification spoof detection. Additional internships include a Software Engineer Intern position at Meta, focusing on deep learning and video recommendation, as well as a Junior Software Developer role at FortyAU. Zhongwei also completed a web developer internship at the Institute for Software Integrated Systems, where an app was developed to facilitate patient information collection for doctors. Educational qualifications consist of a PhD in Computer Science and an MS in Electrical and Electronics Engineering from Vanderbilt University, along with a Bachelor's degree in Electrical and Electronics Engineering from Sichuan University.