Hafiz Putra Ludyanto

Senior Backend Engineer

I build reliable distributed systems in Go — notification infrastructure for 11M users, compliance verification pipelines end-to-end, and 21+ microservices at Astro. 7+ years across fintech, e-commerce, and RegTech. 2,900+ GitHub contributions/year.

GogRPCPostgreSQLRedis KafkaKubernetesAWSTerraform

Selected Projects

Multi-LLM CV evaluation in Go — vector DB semantic matching, full observability (Grafana/Prometheus/Jaeger), 80% coverage gate, blue-green deployment.

Local-first semantic code search — GPU-accelerated ONNX embeddings, MCP server integration, no data leaves your machine.

High-concurrency coupon claiming in Go — atomic operations under flash-sale load, stress and chaos test suite, zero double-claims.

Birthday reminder service built to enterprise standards — 992 tests across 59 suites (unit/integration/chaos/mutation), circuit breaker, RabbitMQ quorum queues.