Andrew Johnson
Founder, Principal Software Engineer at Circle Quant Inc.
Greater Chicago Area United States
Summary
👤
Senior🎓
Top SchoolAndrew Johnson is a founder and Principal Software Engineer with 14 years of experience building high-performance systems and quantitative trading infrastructure while also driving usage-based billing products at Stripe. He blends startup grit—founding Circle Quant to research high-risk, high-reward strategies and build trade-execution stacks—with enterprise-scale engineering learned at Stripe, Metronome, DoorDash, and Facebook. Comfortable across research, low-latency systems, and production SaaS, he focuses on reliable execution and measurable business impact. Based in the Greater Chicago Area, he pairs a Computer Science degree from the University of Maryland with a track record of shipping both exploratory quant research and production billing platforms. A practical tinkerer, he organizes work around performance and automation rather than flashy surface features.
14 years of coding experience
10 years of employment as a software developer
Georgia Institute of TechnologyBachelor of Science (BS), Computer Science, Bachelor of Science (BS), Computer Science at University of Maryland
Github Skills (57)
python10
protocol-buffers10
machine-learning10
numpy10
serialization10
protoc10
rpc10
deep-learning10
gpu10
neural-network10
protobuf10
marshalling9
intellij9
futures9
clion9
Programming languages (6)
Github contributions (5)
helios2k6/Knapsack
Apr 2014 - Feb 2017
Contributions:9 commits, 2 pushes in 2 years 9 months
helios2k6/B2-Backblaze-API
Apr 2018 - Sep 2023
Contributions:239 pushes, 1 branch in 5 years 5 months
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