Quinn Johnson
Engineer at Notion
Oakland, California, United States
Summary
👤
Senior🎓
Top SchoolQuinn Johnson is an engineer and founder with 11 years of experience building production ML tooling, real-time perception systems, and high-performance web visualizations. He co-founded Aquarium to streamline ML team workflows and previously led Ground Truth Engineering at Cruise, scaling labeled data pipelines that powered autonomous vehicle perception. At Graphistry he pushed GPU-accelerated, WebGL-based visual analytics to handle millions of elements, and at Ouster he connected cloud infrastructure to real-time lidar perception stacks. Now at Notion he’s working on agentic AI experiments, applying a blend of systems thinking and product-focused engineering. Quinn’s background spans low-level performance optimization to orchestration of cross-functional ML teams, and he’s particularly skilled at turning data infrastructure challenges into production-ready developer experiences. Based in Oakland, he brings startup grit plus experience shipping mission-critical systems at scale.
11 years of coding experience
11 years of employment as a software developer
Electrical Engineering and Computer Science, Electrical Engineering and Computer Science at University of California, Berkeley
Github Skills (37)
webgl10
graph-algorithms10
visualization10
network-visualization10
python10
jupyter10
network-analysis10
analyzer10
pandas10
splunk10
graph10
graph-analysis10
networkx10
neo4j10
rapids10
Programming languages (1)
Github contributions (5)
quinnhj/people-money-hackathon
Mar 2015 - Mar 2015
Contributions:42 pushes in 4 days
ericdwang/PDSQL
Dec 2014 - Dec 2014
Contributions:20 commits in 6 days
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