Vikram Narra

Building latency-sensitive services on Amazon's payments infrastructure, handling high-volume transaction workloads under strict consistency guarantees.

Owned the feature-freshness path for Shopify's ML fraud-detection model on the Signals team, cutting feature staleness from ~6 min to under 45 sec.

Built always-on, on-device AI for a wearable startup, cutting live transcription latency by 500 ms with a tree-based RAG cache and contextual prefetching.

Built Kafka and Spark streaming pipelines for real-time, fault-tolerant trade-execution and reconciliation workflows.

Developed distributed microservices and biometric authentication for high-throughput financial platforms.

A daily color-matching puzzle game I designed, built, and shipped solo on iOS, grown to 6,000+ daily active users entirely through organic channels.

An AI proximity social network with a Redis-backed geospatial matching pipeline delivering sub-second pairing under concurrent load.

A prompt-based navigation system that turns natural-language queries into optimized multi-modal routes using LLM planning, retrieval, and geospatial ranking.