# Joe Kuei-Han Chen Hands-on engineering leader who takes products from prototype to monetization and scale. Built DeepLearning.AI's engineering organization from scratch and a learning platform serving 5M+ registered users. Technical depth spans AI infrastructure, full-stack development, and agent-assisted engineering. [joechen@stanfordalumni.org](mailto:joechen@stanfordalumni.org) | [linkedin.com/in/autojoechen](https://www.linkedin.com/in/autojoechen) --- ## Work Experience **DeepLearning.AI** *Head of Engineering | Taipei, Taiwan / Palo Alto, CA | 2022–Present* - Report to founder Andrew Ng; lead engineering, data, security, infrastructure, and incident response; own technology spending and vendor negotiations. - Built the organization from scratch, personally hiring ~20 people across engineering, product, design, curriculum, project management, and operations; now lead an 18-person engineering team through three engineering managers. - Built the initial platform prototype hands-on in three months; the platform now serves 5M+ registered users and has supported 100+ course launches. - Led engineering for the platform's transition from free courses to paid offerings, including persistent sandbox playgrounds, assessments, and certificates. - Built an LLM API gateway serving 10K+ concurrent users in production (multi-provider routing, fallbacks, quotas, usage tracking, and cost controls) and Jupyter-based infrastructure for hands-on course labs. - Deliver product updates and urgent fixes hands-on using AI coding agents. **MoPub ([acquired by AppLovin](https://investors.applovin.com/news/news-details/2022/AppLovin-Closes-Acquisition-of-Twitters-MoPub-Business/default.aspx))** *Lead/Principal Solutions Engineer | San Francisco, CA | 2021–2022* - Led and trained the 30-person global solutions engineering team. - Created and automated the advanced bidding partner certification program using Selenium, BrowserStack, and AWS Device Farm. **Culture Biosciences** *Senior Software Engineer | South San Francisco, CA | 2019–2021* - Designed and developed firmware and software for custom in-house bioreactors used in pharmaceutical, industrial, and synthetic biology applications, plus a web-based LIMS for fermentation engineers and customers. - Scaled the Raspberry Pi fleet and AWS services using Docker, Python, Flask, React, TypeScript, and C++. **Cheetah Mobile** *Architect, Commercial Solutions | San Francisco, CA / Beijing, China | 2016–2019* - Designed monetization strategy and solutions for Cheetah Mobile's app portfolio (600M+ monthly active users in 2016) and Musical.ly (later merged into TikTok); the team was exclusively responsible for Musical.ly's advertising monetization. - Developed product strategy for commercial teams and designed the architecture of Cheetah's ad-tech systems, primarily real-time bidding (RTB). **MoPub ([acquired by Twitter](https://www.adexchanger.com/mobile/twitter-buys-mopub-becomes-a-mobile-ad-exchange/))** *Team Lead, Professional Services | San Francisco, CA | 2013–2016* - Led the ~12-person West Coast professional services team. - Developed ad SDKs for iOS (Objective-C), Android (Java), and Unity (C#); worked with clients and sales on integration and optimization. **EAT Club ([acquired by Compass Group](https://www.compass-usa.com/compass-group-usa-acquires-eat-club/))** *Front-End Software Engineer | Palo Alto, CA | 2011–2013* - First engineer: built the consumer-facing desktop and mobile website, the routing algorithm, and operational tools (Python/Django, MySQL, jQuery, Backbone.js). **Earlier roles** *2007–2011* - Yahoo!, Analyst/Intrapreneur, Optimization Solutions Development (2010–2011): developed optimization solutions in the Yahoo! and Right Media ad marketplace, generating $5M+ in incremental revenue. - Microsoft, Software Development Engineer, Windows Live (2007–2009): built Windows Live Photo Gallery as part of the Digital Memories Experience team. --- ## Advising and Investing Startup advisor and investor since 2014, including MAX ([acquired by AppLovin in 2018](https://www.adexchanger.com/mobile/applovin-acquires-max-in-a-bid-to-spur-in-app-header-bidding-adoption/)) · Block Party ([acquired by DeleteMe in 2026](https://joindeleteme.com/blog/block-party-is-joining-deleteme/)) · CloudX · Kooapps. --- ## Technical Skills - **Languages:** Python, TypeScript, C++, Objective-C, Java, C# - **Web and mobile:** Next.js, React, React Native, FastAPI, Flask, Django - **Databases:** PostgreSQL, MySQL, Redis - **Cloud and devices:** AWS, Kubernetes (EKS), Terraform, Helm, Docker, Vercel, Raspberry Pi fleets, bioreactor firmware - **AI and data:** OpenAI and Anthropic APIs, LLM gateways, Jupyter, Airflow, AI coding agents - **Ad tech:** iOS, Android, and Unity ad SDKs; in-app bidding; real-time bidding (RTB) - **Test automation:** Playwright, Vitest, Selenium, BrowserStack, AWS Device Farm --- ## Education **MIT xPRO** *Professional certificate, Principles of Biomanufacturing | 2020* **Stanford University** *B.S. in Electrical Engineering | 2004–2007* - HP and Agilent Senior Design Award for an OLPC typing and writing application (Python). **Texas Academy of Mathematics and Science** *Early-college program, University of North Texas | 2002–2004* - 2004 honors: Barry M. Goldwater Scholar; [Siemens Westinghouse regional finalist](https://tams.unt.edu/research/awards.html); [Intel Science Talent Search semifinalist](https://sspcdn.blob.core.windows.net/files/Documents/SEP/STS/2004/Program-Books/Semifinalist.pdf#page=24). --- Also available as [PDF](https://autojoechen.com/resume.pdf) and [Markdown](https://autojoechen.com/resume.md).