Mintu Kumar

CallSignal: Built a 5-agent async LLM pipeline (Python asyncio) extracting deal intelligence across 13 dimensions from sales transcripts; provider-agnostic abstraction over OpenAI GPT & AWS Bedrock with STS auto-refresh. Implemented SQLite caching, rate limiting (500 RPM), human-in-the-loop review queue, and automated PDF reports – replacing manual rep note-taking at scale.

Hermes: Designed a LangGraph workflow (60+ nodes) for automated Freshdesk ticket resolution – intent classification, user validation, RAG search (OpenSearch + RRF fusion), and GPT-powered response generation.

6 month

B.Tech in Electronics and VLSI Engineering – Indraprastha Institute of Information Technology Delhi (IIIT-Delhi) (2022-11 – 2026-05)