0%
Latency cut, courier flow
230ms → 100ms p99
Refactored request flow to remove a monolith dependency. Direct microservice access cut courier-assignment p99 from 230ms to 100ms.
0×
Inference speedup
CatBoost EDD · p99 ≈ 0.04ms
In-process CatBoost inference replaced an out-of-process service call. ~25k requests in ~0.5s on a 2-vCPU/4GB box.
$0K/mo
Redis spend reclaimed
800-key cardinality · in-memory LRU
Recognized 800-key cardinality on the 'company' dimension; in-memory LRU collapsed 80%+ of Redis traffic without changing semantics.
0yr
Building backends at scale
startup → high-traffic platform
Front-end → full-stack → cloud → backend → tech lead. Same instinct throughout: ship simple, observe everything.