Vishal Bhargava

Platform engineer working on the infrastructure layer of LLM systems.

I help engineering teams get LLM inference costs under control — through measurement, routing, and serving efficiency, without giving up reliability.

Platform engineer, 12 years. Tech Lead Manager @ Kittl. Based in Dubai.

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Recent

Hybrid search didn't help. It still fixed my retrieval.

12 August 2026

Technology Ritam Rag Retrieval Evals Inference-Cost LLM

I added hybrid search and a cross-encoder reranker to my RAG service, measured it, and wrote up four findings. Then I ran the one comparison I’d been putting off, and three of the four didn’t survive.

Building a RAG service: architecture, trade-offs, and lessons

29 January 2026·9 mins

Technology Ritam Rag Fastapi GCP Observability LLM

Built a production-shaped RAG v1: offline indexing + FastAPI /query on Cloud Run (Terraform), with sources, logs, and basic monitoring.