Jeffery Do
Founding AI Engineer at Stealth AI Startup
San Francisco Bay Area United States
Summary
👤
Senior🎓
Top SchoolJeffery Do is a Founding AI Engineer and entrepreneur in the San Francisco Bay Area with 11 years of experience building large-scale backend and data systems. He designed and operated high-throughput ETL and streaming pipelines and audience segmentation microservices at PlayStation that handled hundreds of millions of users and materially increased sales across PS4, PS5, and the Webstore. Comfortable across Java, Scala, Kotlin, Python and golang, he combines hands-on engineering with a DevOps mindset—driving Kubernetes migrations, CI/CD automation, observability, and operational runbooks. Jeffery is now applying that product-focused infrastructure experience to founding roles at a stealth AI startup and BitsOf, bringing a pragmatic blend of data engineering, ML-ready tooling, and developer productivity. A natural collaborator and documentarian, he often codified onboarding, created diagnostic tooling, and recorded training materials to scale knowledge across large engineering teams.
11 years of coding experience
7 years of employment as a software developer
California Polytechnic State University, San Luis Obispo
English, chinese (simplified) [spoken]
Github Skills (16)
analytics9
science9
machine-learning9
data-visualization9
data-mining9
deep-learning8
charts8
data-science8
helm8
kubernetes7
python3
semantic-versioning3
artificial-intelligence2
apply1
pandas1
Programming languages (6)
Github contributions (5)
bitsof/bitsof
Mar 2025 - Feb 2026
Contributions:4 reviews, 70 PRs, 64 pushes in 10 months
bitsof/selecto
Apr 2023 - Jul 2023
Contributions:41 reviews, 36 PRs, 44 pushes in 3 months
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