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David Kim
Co-founder & CTO
David was a principal engineer at Stripe for 5 years, where he built the device fingerprinting layer for Stripe Radar. He holds 2 patents in real-time fraud scoring and designed tracio.ai's sub-30ms processing pipeline. He's obsessed with performance — the kind of person who profiles database queries for fun. His writing covers Go internals, Rust performance, ClickHouse optimization, and the math behind device matching algorithms.
Go & Rust performanceClickHouse optimizationDevice matching algorithmsReal-time fraud scoringTLS fingerprinting
Articles by David
How Digital Footprint Tracking Works Under the Hood
March 14, 202611 min read
Read article TLS Fingerprinting and JA4 Hashes Explained
March 5, 20268 min read
Read article Zero Trust Starts with Device Verification
February 22, 20266 min read
Read article Real-Time Fraud Scoring at Scale
February 14, 202611 min read
Read article Rust in Production: Why We Rewrote Our Signal Processor
January 30, 202612 min read
Read article WebRTC IP Leak Detection: From Bug to Feature
January 15, 202610 min read
Read article Device Graph Analysis: Connecting the Dots Across Sessions
January 15, 202612 min read
Read article Detecting Multi-Accounting in Gaming and SaaS
December 28, 20259 min read
Read article Ready to get started?
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