As a Principal Software Engineer with 7+ years of experience, I've built my career on solving complex technical challenges and empowering others to do the same. My journey spans from being a Founding Engineer at a startup to leading 25+ developers across multiple product verticals, giving me unique insights into both building from scratch and scaling at enterprise level. My Expertise: Full-Stack Development: React, Node.js, Python, TypeScript AI/ML Systems: LangChain, OpenAI API, RAG pipelines, model fine-tuning Cloud Architecture: AWS, Kubernetes, Terraform, microservices Leadership: Team scaling, technical mentoring, hiring processes Real-World Impact: Architected systems handling $500M+ transaction volumes Built AI document processing reducing processing time by 80% Led cloud migration saving $300K annually with 75% less downtime Scaled engineering teams from 3 to 25+ developers Beyond Code: MongoDB User Group Leader - Kolkata Technical Speaker at developer conferences Research Contributor - Published in Science Immunology Mentor to 15+ engineers who've advanced their careers I believe in learning by doing - every session includes actionable takeaways, real-world examples, and personalized growth strategies based on your specific goals.