Backend Engineer – L1 · UIX Labs
- **Quick-Commerce App:** Owned end-to-end feature development on the Orders Service processing 10K+ daily transactions, including a customer loyalty and rewards program, complex refund/cancellation workflows, and third-party payment API integrations. - Optimized critical backend services reducing P95 API latency by 48% through query batching and connection pooling; eliminated 60% of redundant database calls by introducing read-through caching and consolidating N+1 query patterns. - Identified a…