Paurush Batish

About Paurush Batish

Northeastern University MS candidate in Computer Software Engineering, contributing to…

Experience

1. Ai Software Engineer

   BCG X

   Sep 2024 — Present · Boston, MA, US

   Built an LLM-powered chatbot for a FastAPI-based product discovery platform using LangGraph, enabling dynamic search, review generation, and multi-turn conversations with voice capabilities via Gemini 2.0 Flash2. Architected scalable infrastructure on GCP with Terraform, using Cloud Build triggers, Apigee-managed WebSocket APIs, and integrated Sentry for real-time issue and error tracking3. Integrated D-ID for real-time avatar responses synced with user voice commands, implementing a dual WebSocket setup for seamless bidirectional interaction4. Developed custom tools and internal dashboards (e.g, input fillers, query filters) to support modular interaction flows and extend functionality across microservices5. Resolved critical memory leaks by refactoring Gunicorn worker architecture, applying the singleton pattern, and explicitly managing memory for large operations, resulting in a stable, scalable backend.Engineered high-performance Excel exports for datasets exceeding rows using OpenPyXL and XlsxWriter, implementing batch operations tailored to format-specific use cases6. Built intelligent query decorators to optimize Django ORM filtering, resolving multi-join inefficiencies, and automated file cleanup with cron jobs7. Implemented a fast, seamless table UI using TanStack Query, offset-based pagination, and cache preloading logic to eliminate perceived lag during scrolls; enforced access controls via the principle of least privilege