Alex Jiakai XU

Alex Jiakai XU

Computer Science Student

Columbia University

Biography

Jiakai Xu is a self-motivated, responsible, and easy-going first-year master’s student in Computer Science at Columbia University. He holds dual bachelor’s degrees in Computer Science from Columbia University and the City University of Hong Kong, earned through the Joint Bachelor’s Degree Program. With a strong academic record, Jiakai has extensive experience as both a Research and Teaching Assistant. His primary interests lie in computer systems, cybersecurity, web development, and software design. Additionally, he has notable achievements and strong interests in civil aviation flight technology, aerospace vehicle design, and life sciences, particularly in immunology, stem cells, and public health.

Interests
  • Computer Systems
  • Programming Languages
  • Software Designing
  • Cyberspace Security
  • Civil Aviation
  • Life Sciences
Education
  • M.S. in Computer Science, 2024 ~ 2025

    Columbia University in the City of New York

  • B.A. in Computer Science, 2022 ~ 2024

    Columbia University in the City of New York

  • B.S. in Computer Science, 2019 ~ 2024

    City University of Hong Kong

Skills

c
C
cplusplus
C++
java
Java
python
python
go
go
php
PHP
html5
HTML
css3
CSS
javascript
JavaScript
linux
Shell
haskell
Haskell
matlab
Matlab
ruby
Ruby on Rails

Experience

 
 
 
 
 
Columbia University
Teaching Assistant
Aug 2024 – Dec 2024 New York, NY

COMS W4995 Design Using C++ : Graduate seminar on programming language design in C++
Instructor: Prof. Bjarne Stroustrup ; Enrollment: 30+ students

Led weekly office hours to answer students’ questions and explain new features of C++.
Mentored and evaluated student software development projects.
Assisted the professor with instruction and classroom management.

 
 
 
 
 
Columbia University
Teaching Assistant
Jan 2024 – May 2024 New York, NY

COMS W4118 Operating Systems : Linux kernel hacking and concurrent programming in C
Instructor: Prof. Kostis Kaffes ; Enrollment: 150+ students

Designed and graded kernel hacking homework, and midterm exams for the class.
Developed automated grading scripts for the teaching team.
Delivered recitations and met with students during weekly office hours.
Assisted the professor with instruction and material preparation.

 
 
 
 
 
Columbia University
Teaching Assistant
Jan 2023 – May 2023 New York, NY

COMS W3157 Advanced Programming : UNIX systems programming using C and shell
Instructor: Dr. Brian Borowski ; Enrollment: 350+ students

Delivered recitations and met with students during weekly office hours.
Designed and graded 7 programming labs and 3 exams for the class.
Assisted the professor with instruction and material preparation.

 
 
 
 
 
City University of Hong Kong
Research And Teaching Assistant
Jun 2022 – Jan 2023 Hong Kong SAR

CS2204 Fundamentals of Internet Applications Development : Website frontend development using html, css, javascript
Instructor: Prof. Zhenjiang Li ; Enrollment: 200+ students

Developed a new set (15 sessions) of tutorial materials independently.
Assisted professor in updating lecture notes and coursework.
Led follow-up research on sign language recognition and bio-algorithm analysis project.

 
 
 
 
 
City University of Hong Kong
Research Assistant (Fulltime)
Jul 2021 – Jun 2022 Hong Kong SAR

Supervisor: Prof. Shuaicheng Li

Developed a new genetic diagnosis and cancer screening website with colleagues using ruby on rails and vue.js.
Developed several bioanalysis processes using bash and python scripts.
Responsible for the deployment of the website and server administration.

Recent Publications

(2024). Enhancing the Applicability of Sign Language Translation. IEEE Trans. Mob. Comput..

Cite Project DOI

Projects

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Accomplish­ments

Upsilon Pi Epsilon Honor Society
The Neil R. and Ann B. Hammer Family Charitable Foundation Scholarship
Dean List of School of General Studies (every semester)
Dr. & Mrs. Yeung Kin Man Scholarship
Dean List of College of Engineering (every academic year)

Contact