Vaibhav Sutar
Generative Ai Engineer @Tata Consultancy Services
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WORK HISTORY
Generative Ai Engineer @Tata Consultancy Services
1) Designed and developed a multi-agent LangGraph system with a supervisor graph routing user queries to specialized sub-agents (Surest, Cirrus, Renewal, SAMx, BNE, GCO, etc.) based on client configuration stored in MongoDB 2) Implemented Retrieval-Augmented Generation (RAG) using PostgreSQL with pgvector for semantic similarity search on training documents, enabling context-aware Q&A with GPT-4o 3) Built a pre-loaded PDF Q&A feature using GPT-4o Vision — backend auto-loads a static PDF, converts pages to base64 images, and answers user questions without any file upload from the user Developed FastAPI REST endpoints with OAuth2/OIDC authentication, JWT validation, rate limiting (SlowAPI), and multi-tenant (client_id) based access control Integrated Azure OpenAI (GPT-4o) with token-based auth via UHG API Gateway, supporting chat, JSON-structured responses, and vision (image/PDF) inputs 4) Implemented tool orchestration using LangChain tools with LangGraph ToolNode, injected state, per-tool logging, retry policies, and error resilience 5) Built async PostgreSQL connection pooling for LangGraph checkpointing (conversation memory across sessions) and vector similarity search Enabled multi-client tenant architecture — each client (Internal, SAMx, BNE, GCO, etc.) has independently configured assistants and tools controlled via MongoDB.
EDUCATION
Nutan Vidyalaya highschool
Ssc
JSPM's Rajarshi Shahu College of Engineering
Bachelor of Engineering - BE
ABOUT VAIBHAV SUTAR
Generative AI Engineer 4 years of experience specializing in designing and deploying scalable LLM-powered solutions, building end-to-end AI systems with prompt engineering, fine-tuning, RAG architecturesto drive intelligent automation and business impact.
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