Résumé · Sean Yen

Sean Yen

Tesla

Palo Alto, CA

Software Engineer

August 18, 2025 – Ongoing

Rewrote codebase from C++ to TypeScript, resulting a 60.1x improvement in execution times and allowing for another 3.8x speedup in React render times.
Introduced analytics, error logging, and deadman alerts to internal tool for better observability.
(AND THERE WILL BE MORE!!)

TikTok

San Jose, CA

Software Engineer Intern

June 23 – August 15, 2025

Implemented 5 API routes in Go with GORM and Thrift to integrate functionality across codebases.
Reduced React page load times by 2.72x, and optimized SQL query for a 2.51x speedup.

UC San Diego

San Diego, CA

Graduate Student Researcher

October 1, 2024 – June 30, 2025

Student IT

May 23, 2022 – June 14, 2024

Automated the cleanup and upload of 7,900 student degree plans by writing versatile code in Python and Julia and reverse engineering internal web APIs.
Ensured accuracy by identifying 3,450 mistakes using Python, elevating the quality of plans for students.
Developed 16 intuitive and visually captivating web-accessible dashboards with Tableau, React, and D3.js to present actionable insights that empowered university administrators with more informed decisions.
Tracked 7 years' worth of changes made to degree plans, unveiling the root causes of previously unexplained fluctuations in degree difficulty to administrators.
Represented course prerequisites as an interactive tree structure implemented using D3.js, enabling administrators to visualize how their decisions can cascade down to hundreds of courses.
Created an advanced academic plan visualization custom built for staff to highlight potential roadblocks to student success.

Association for Computing Machinery at UCSD

San Diego, CA

Frontend Developer

May 15, 2023 – Present

Built 8 web pages in Next.js and TypeScript as part of a rewrite of our membership portal, registering 1,128 event check-ins in the past year.
Reimagined animations from design prototypes using CSS, attracting 192 orders on our merch store.
Developed 9 challenges for SDCTF, a global cybersecurity competition with over 400 teams competing.

Tesla

Palo Alto, CA

Software Engineer Intern

June 17 – September 13, 2024

Overhauled a complex React app in TypeScript to optimize user experience, reusability, and performance.
Improved reliability and portability by optimizing C++ and Rust programs for compatibility with WebAssembly.

Education

University of California San Diego

San Diego, CA

Master of Science in Computer Science (GPA 4.0/4.0)

September 26, 2024 – June 13, 2025

Bachelor of Science in Computer Engineering (GPA 3.959/4.0) Magna Cum Laude

September 23, 2021 – June 14, 2024

Coursework Data Structures (Java, C++), Systems Programming (C, Assembly), Operating Systems, Digital Systems Design (System Verilog), Software Engineering, Database Systems, Parallel Computing (CUDA). TODO: grad classes? though tbh, did i really learn anything in my masters

Henry M. Gunn High School

Palo Alto, CA

GPA 4.0/4.0 (weighted 4.44)

August 2017 – June 2021

Coursework Functional and Object-Oriented Programming (Simply Scheme), AP Computer Science A (SICP).

Projects

Personal Website (link)

Github

Developed full-stack websites with back-ends powered by PHP, Firebase, and Express.js.
Designed and built 2 web pages over 2 years with HTML, CSS, and JavaScript.
Created a multitude of web tools and games for a diverse audience, attracting 163,000 unique users in 2025.

UCSD Classroom Schedule (link)

Github

Discovered, investigated, and documented the API for my university's course registration website.
Engineered a web scraper to collect the times and locations of all 11,000 meetings across 2,400 courses.
Designed an interactive map of the campus's 85 buildings, organizing meetings by classroom.
Informed 16,813 students, TA's, and professors in 2025 of nearby available classrooms, providing a reliable resource for informal meetings.

SunSET for UCSD (link)

Github

Founded a croudsourcing initiative to collect grade distributions for 1,442 courses from 436 students.
Engineered a reliable tech stack for collecting submissions, powered by React and Google Apps Script.

HTMLifier (link)

Github

Provided tools for 22,000 students in 90 days for publishing their own games.

Discord Webhook Sender (link)

Github

Simplified the process for creating announcements on Discord for 5,500 users in 90 days.

E羊icques (link)

Github

Modified Scratch allowing for more customizability for 3,000 students every week.
Taught myself React and Redux by reading through their code.

Trig Drill Generator (link)

Github

Designed a timed quiz that generates practice problems for students in my trigonometry class.

OlamREEE (link)

Github

Digitized a portion chemistry project for student convenience and to promote collaboration.
Offered my chemistry teacher a remote alternative during distance learning.

Unofficial Gunn Web App (link)

Github

Provided reliable schedule information and tools to students, parents, and staff.
Garnered nearly 1,000 clicks per month from Google with up to 736 concurrent users.
Made the app accessible to students without smartphones.

Elimination (link)

Github

Volunteered to build and host a website with Elm and MongoDB for a school event with 323 participants.

Skills

Languages HTML, CSS, JavaScript, TypeScript, Python, Rust, Go (Golang), Java, C, C++, CUDA, Elm, Ruby, Julia, Bash.

Frameworks React.js, Next.js, React Native, Webpack, Rollup, jQuery, Express.js, Node.js, Deno, Three.js, Flask.

Tools Git, GitHub, VS Code, Figma, Unix, Linux.

+ years of experience in full-stack web development and web scraping.

Experience

Tesla

TikTok

UC San Diego

Association for Computing Machinery at UCSD

Tesla

Education

University of California San Diego

Henry M. Gunn High School

Projects

Skills