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RESUMÉ · 2026 · SAN FRANCISCO, CA
maya.chen@hey.com
mayachen.dev
"Distributed-systems engineer with 9 years building payments and developer infrastructure at scale."
Tools & Stack
TypeScript / Go / Rust / Python / SQL / Postgres / Kafka / gRPC / Kubernetes / Terraform / Distributed systems / Event sourcing / Payments
Selected work - past 9 years
Senior Staff Software Engineer
Tech lead for Connect Reconciliation. Migrated 4PB of ledger data off MySQL onto an in-house columnar store; cut nightly close from 6h to 22m.
Staff Software Engineer
Built the multiplayer presence layer that powers cursors, selection sync, and follow mode. Sub-50ms p99 across 8 regions.
Senior Software Engineer
Owned ACH risk scoring end-to-end. Reduced fraud loss by 38% in 12 months without changing approval rate.
Software Engineer
Cash App core ledger. On-call for the money-movement pager rotation.