Matthew Kim
Head Of Engineering at Rime Labs
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolMatthew Kim is a Head of Engineering based in San Francisco with 12 years of experience building production-grade systems across payments, Bitcoin custody, fraud risk, and machine learning. He led core infrastructure at Cash App for Bitcoin hot wallets and Lightning, and moved an internal skunkworks project into a GA Bitcoin Conversions product; prior roles include risk engineering at Square and real-time fraud and prediction systems at Postmates. Matthew blends ML and backend expertise—earlier work includes machine vision for clinical research and deploying models/ETL pipelines at scale—and he holds an MA in Mathematics from San Francisco State. He also explored crypto-native tooling at Inscribing Atlantis, building a Rust backend for Ordinals-based 3D asset auctions that fused astronomical data into on-chain traits. Known for turning research and proofs-of-concept into resilient, customer-facing features, he mentors teams to ship secure, auditable systems under production constraints.
12 years of coding experience
9 years of employment as a software developer
Master of Arts - MA, Mathematics, Master of Arts - MA, Mathematics at San Francisco State University
Stackoverflow
66reputation
2kreached
2answers
1question
Github Skills (52)
pytorch10
python10
data-science10
machine-learning10
voice10
tensorflow10
deep-learning10
erc209
erc7219
voice-assistant9
exchange9
jax9
ethereum8
apache8
scheduler8
Programming languages (4)
Github contributions (5)
MaCaki/macaki.github.io
Jan 2015 - Feb 2025
CV site and pdf compiler
Contributions:26 PRs, 123 pushes, 20 branches in 10 years 2 months
compilerpdfcv-site
MaCaki/interpreter
Mar 2014 - Apr 2014
Contributions:20 commits in 1 month
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