Zhan Chin is a Member of Technical Staff with 12 years of experience building full-stack systems and ML infrastructure, now based in Singapore. He co-founded and served as CTO of Havana, developing an AI agent to help school enrollment teams—which was acquired by Cognition, where he now contributes to product and engineering. His background includes early-stage engineering at Airplane and production ML infra at Nuro, showing a range from startup velocity to safety-critical systems. Zhan is an active contributor to Oppia, implementing interactive learning widgets like a draggable Graph Input that blends front-end interactivity with backend data modeling. He holds combined Bachelors and Masters degrees in Computer Science from the University of Pennsylvania and began mentoring high-performing competitive programmers in Singapore early in his career. Known for turning complex educational problems into usable AI-driven workflows, he combines product intuition with hands-on engineering.
12 years of coding experience
8 years of employment as a software developer
Singapore-Cambridge GCE A Levels, Singapore-Cambridge GCE A Levels at Raffles Institution
Bachelors + Masters, Computer Science, Bachelors + Masters, Computer Science at University of Pennsylvania
A free, online learning platform to make quality education accessible for all.
Role in this project:
Full-stack Developer
Contributions:1 PR in 1 day
Contributions summary:Zhan's contributions focused on implementing new interactive widgets for a learning platform, specifically a Graph Input widget. They added the initial boilerplate code and JavaScript for the widget, including the ability to visualize graphs from JSON input and make vertices draggable. Further work included adding editor functionality like the ability to add and delete nodes and edges, and added basic functionality for editing vertex labels, indicating a strong focus on front-end development and also a degree of back-end work related to the widget's data structures.
Contributions:47 commits, 2 PRs, 34 pushes in 25 days
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Zhan Chin - Member Of Technical Staff at Cognition