Pratanu Dolui

I built an Enterprise RAG Engine with Spring Boot and Spring AI to answer questions over uploaded PDF, text, and Markdown files. It uses pgvector for document embeddings and hybrid retrieval with vector search and BM25.

I streamed LLM answers with source citations over REST and SSE, and added global exception handling and Docker Compose.

As a Backend Development Intern at Dhee Coding Lab, I developed backend APIs using Java, Spring Boot, Hibernate, and MySQL for SaaS-style web applications. I also implemented RESTful services, CRUD operations, and authentication modules, and optimized SQL queries.

At CODESOFT, I developed responsive web interfaces using HTML, CSS, JavaScript, and MySQL. I hold a Bachelor of Engineering in Computer Science and Engineering from PES Institute Of Technology And Management, and completed NPTEL's Programming in Java course.