OpenSearchCon India 2026

Modern ecommerce search systems must do more than return results. They must understand customer intent, retrieve relevant products, and do all of this within extremely tight latency budgets. Even small delays can impact user experience and conversion.

In this talk, I will walk through the architecture of a product discovery system designed to deliver relevant product suggestions in under 200 milliseconds using OpenSearch and Lucene. The session will explore how search infrastructure can power real time product discovery across high traffic ecommerce platforms.

We will cover how queries are processed, how candidate products are retrieved efficiently, and how filtering and ranking strategies help surface high quality and buyable items. The talk will also discuss practical techniques for managing latency budgets, optimizing search queries, and designing indexes that balance speed and relevance.

Attendees will gain practical insights into building fast and scalable product discovery systems and learn how OpenSearch and Lucene can be used to power low latency search experiences in modern ecommerce applications.