Sayan Chatterjee

About Sayan Chatterjee

I’m a Cloud-Native & AI Architect with over 15 years of experience designing and…

Experience

1. Technical Lead

   IBM

   Dec 2021 — Present · Bengaluru, IN

   Lead Architect for a mission-critical, event-driven publish-subscribe platform powering cloud-native workloads across IBM Cloud regions- Increased event throughput and resiliency by designing a multi-threaded subscription and retry engine, handling millions of cloud-native events daily- Built a real-time observability dashboard using the ELK stack to monitor and troubleshoot cloud event flows globally- Integrated Kafka Schema Registry to enforce schema evolution policies and support multi-tenant data validation across topics- Developed a LangChain-based Retrieval-Augmented Generation (RAG) agent prototype for dynamic service remediation use cases using WatsonX and ChromaDB- Contributed upstream to Go Kafka client libraries, improving throughput, memory efficiency, and observability- Drove CI/CD transformation and automated deployment pipelines using Kubernetes, Helm, and GitOps workflows for scalable, cloud-native service delivery- Led architecture reviews, sprint planning, and delivery for globally distributed teams- Promoted open-source contribution, component reusability, and self-healing microservice patterns in production.

Education

• Birla Institute of Technology and Science, Pilani - Goa Campus

  Doctor of Philosophy - PhD

  2025

• University of Kalyani

  Master’s Degree

  2008 — 2011

• University of Calcutta

  Bachelor’s Degree

  2003 — 2008