Software Engineer
CurrentLeadec
- Multi-tenant search infrastructure: Designed multi-tenant vector search service (Qdrant) with namespace-level isolation across 100+ independent environments; collection filters enforced strict data boundaries, reducing memory overhead 80% vs. per-tenant database approach
- Hybrid search service: Built search service combining inverted-index keyword matching with semantic vector retrieval to handle exact alphanumeric codes and natural language in a unified pipeline; improved Recall@5 by up to 20% over vector-only architecture with no latency regression
- Low-latency query routing layer: Engineered intent-classification service that routes requests before triggering expensive downstream calls; fast-path circuit breaker for direct-lookup queries reduced p99 retrieval latency from 150ms to <5ms (30x), eliminating vector search overhead for targeted file queries
