Welcome to my portfolio

Xubin Sun

Aspiring Product Manager · Incoming MSCS @ Northwestern

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Grad OffersCornell · Northwestern · UCL
3.9/4
GPATop 5%
0
InternshipsZoom · Alibaba Cloud · Deloitte · Penghui
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PublicationsSCI Q1 · Int'l Conferences

About Me

I like building products that people actually want to use. I've interned at Zoom working on AI features, at Alibaba Cloud on data products, and at Deloitte on backend systems — each time getting closer to understanding how good software really comes together.

I write research on the side — mostly around language models and medical imaging. A few papers came out of it, which I'm proud of.

Outside of work, I run, go to the gym, and make short videos. One somehow hit 29 million views.

Starting my master's at Northwestern this fall.

Internships

AI Product Manager Intern

Zoom Communications (Present)

Dec 2025 – Present

Driving AI feature development for Zoom Present — from PRD to launch, with data instrumentation, competitive analysis, and evaluation framework design.

  • Led requirements planning and delivery for Zoom Present AI editing features and mobile full-flow design, producing 6+ core PRDs and coordinating cross-functional reviews across product, design, frontend, backend, and QA teams
  • Designed data instrumentation schemas for key features (e.g., slide insertion, search), defining trigger sources, parameter fields, success/failure criteria, and funnel event chains to support adoption rate, success rate, and undo behavior monitoring
  • Conducted 5+ competitive analyses covering Gamma, Genspark, Manus, AnyGen, and Skywork — benchmarking AI PPT generation speed and interaction paths to quantify gaps and inform product iteration priorities
PM
AI

Product Operations Intern, Dataphin

Alibaba Cloud (Lingyang Intelligence)

Jul 2025 – Sep 2025

Led Storylane demo content creation, data dashboard development, and international business liaison for Dataphin's global expansion.

  • Created 50+ English demos on Storylane covering Copilot and NL2SQL scenarios, built reusable templates with standardized scripts and storyboards, and published across 6 channels including Alibaba Cloud website and WeChat Mini Program
  • Developed a demo data monitoring dashboard tracking views, traffic sources, retention, and conversion rates by channel — identifying user drop-off points and bottleneck pages to guide content optimization
  • Built an online searchable demo library organized by channel with standardized naming and versioning conventions, significantly improving asset retrieval and reuse efficiency
PM
Data

Data Platform Developer Intern (SAP Project)

Deloitte China (Hangzhou)

May 2025 – Jul 2025

Full-cycle backend development — from requirements and prototyping to API development, gateway management, and SAP integration.

  • Participated in full backend development lifecycle including requirements documentation, Axure prototyping, database design, API development, and Postman integration testing
  • Built an API gateway information management module to synchronize API data from Alibaba Cloud, classify APIs by business centers, and track utilization rates for ongoing monitoring
  • Designed and optimized backend interfaces in Spring Boot and MyBatis — including supplier quality management (CRUD + Excel export), customer information retrieval (cross-table queries), and SAP CSB payroll integration
Backend
Engineering

Big Data Intern

Penghui Technology (Shanghai)

Jun 2024 – Aug 2024

Developed AI interfaces, built standardized web services from legacy scripts, and applied Hadoop/Hive/Spark for large-scale data processing.

  • Developed a Python-based AI reply interface — writing prompts, calling Zhipu's LLM API, and persisting user queries and AI responses to MySQL for durable storage
  • Upgraded script-based queries into standardized Spring Boot + MyBatis + MySQL web services for enterprise invoice retrieval, billing details, and address correction — with pagination, fuzzy search, and Postman-validated API contracts
  • Applied Hadoop, Hive, and Spark for large-scale data processing — writing SQL and HiveQL queries and leveraging Spark transformations for efficient data computation
Data
Backend
AI

Research & Publications

Improving Negative Rejection Ability in Language Models: A Review of Fine-Tuned LLMs, RAG, and RAFT

Journal of King Saud University – Computer and Information Sciences (SCI Q1) · 2025

B. Li, Z. Zhong, H. Zhang, X. Sun, B. Ihnaini

Robust Medical Image Classification with Curvature Regularization on the PATHMNIST

Fourth International Conference on Computer Graphics, Image, and Virtualization (ICCGIV 2024) · 2024

G. Yang, J. Qi, X. Sun

Privacy Dataset Distillation for Medical Imaging Using Class Centralization and Covariance Matching for OCTMNIST

Fourth International Conference on Advanced Algorithms and Signal Image Processing (AASIP 2024) · 2024

X. Sun, D. Li, G. Yang

Education

Northwestern University

M.S. in Computer Science, McCormick School of Engineering

Sep 2026 – Sep 2027

Chicago, USA

  • Admitted to Northwestern, Cornell, and UCL — committed to Northwestern MSCS (Fall 2026)

Wenzhou-Kean University

B.S. in Computer Science (Minor: Mathematics)

Aug 2022 – Jun 2026

Wenzhou, China

  • GPA: 3.922 / 4.0 (Top 5%, Ranking 9/140)
  • Dean's Scholarship: 2nd Prize (2024–2025), 3rd Prize (2022–2023)
  • Dean's List: Spring & Fall 2023, Spring & Fall 2024, Spring 2025
  • Core courses: Computer Systems, Data Structures, Discrete Structures, Computer Organization, Big Data, Calculus, Linear Algebra
  • Exchange at Kean University (NJ, USA): Jan – May 2025, CS core courses + cross-cultural projects

Leadership & Volunteering

Head of New Media Department

Wharf Poetry Club, WKU · Jun 2023 – Sep 2024

Published original poetry and articles on a weekly basis and managed publicity for club events and activities, growing the club's online presence and engagement.

Teaching Assistant

Department of Computer Science, WKU · Sep 2023 – Dec 2024

Organized academic workshops, assisted in grading coding assignments, and evaluated final projects. Built a grade management database for data-driven teaching support.

IT Assistant

WKU Library, Information Management Dept. · Jun 2023 – Present

Developed Python web crawlers for large-scale book data collection from Douban, wrote data validation scripts, and automated real-time library data updates.

Interests

Fitness

Regular gym training and strength building

Running

Long-distance running enthusiast

Short-Form Video

Multiple posts with 200K+ views; peak 29M views on a single video

Vibe Coding

Independently built multiple 'helper' tools and mini-programs

Say Hello

Always happy to chat about ideas, projects, or anything in between.

1234946@wku.edu.cn+86 15267452924WeChat: Bingoowin
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