Naveen Kumar

I’m a Software Development Engineer 1 at Adda247, where I design and implement production REST APIs, subscription flows, and core backend services. I’ve built features like freemium paywall access control, UPI AutoPay for recurring subscriptions, and end-to-end membership lifecycle handling.

I’ve driven measurable performance and reliability improvements across our platform: Search Module on Elasticsearch handles 600K+ weekly queries with 40% lower search latency, and I reduced load times by 30% using Redis caching plus MySQL & MongoDB schema indexing. I also automated 700K+ record migration to Elasticsearch with Logstash ETL pipelines, cutting manual operational effort by 80% and reducing downtime by 20% using CI/CD and Logstash/Kibana/Grafana-driven incident analysis.

On the engineering side, I revamped user authentication with multi-tenancy, OTP mobile login, AES encryption, and 2-device session enforcement. My projects extend into AI search: I built a hybrid keyword + KNN vector search pipeline supporting 1.5M+ products monthly, added LLM-driven filter extraction and reranking with strict JSON schemas, and reduced embedding costs by skipping unnecessary re-embeddings.