I've spent the last decade building distributed systems that process payments, stream audio, and run financial infrastructure at scale. I write Go and Rust for the hard problems, and PostgreSQL for everything else. Currently open to staff/principal contracts — especially fintech, dev tooling, or infra.
Led migration of the payment routing layer from a Ruby monolith to a Go service handling 40k req/s. Reduced p99 latency from 180ms to 22ms. Owned on-call for EMEA payouts.
Built the real-time transaction pipeline in Kotlin and Kafka. Introduced distributed tracing with OpenTelemetry across 30+ services, cutting mean time-to-diagnose from 40min to 4min.
Maintained a Hadoop/Spark pipeline ingesting 8TB/day of audio events. Led the migration from on-prem to AWS while maintaining 99.9% SLA throughout.
Lightweight Go client for PostgreSQL-backed message queues. Zero external dependencies, SKIP LOCKED for at-least-once delivery, dead-letter support. 600+ GitHub stars.