Bratin Dey

Applied AI and Full Stack Engineer with 3+ years of experience designing, developing, and deploying scalable cloud native applications using React, TypeScript, JavaScript, Node.js, FastAPI, Python, AWS, and Google Cloud Platform. Experienced in building end to end software solutions, REST APIs, microservices, real time distributed systems, and AI powered applications. Strong expertise in Large Language Models (LLMs), Retrieval Augmented Generation (RAG), LangChain, LangGraph, vector search, semantic search, embeddings, prompt engineering, agentic AI, and AI workflow orchestration.

Built production solutions across US based EdTech and Healthcare platforms, including wearable health analytics, AI assistants, real time interview platforms, browser extensions, desktop applications, and cloud based developer platforms. Experienced with Docker, Kubernetes, Datadog, CI/CD, PostgreSQL, MongoDB, BigQuery, observability, monitoring, and cloud infrastructure. Passionate about building reliable, scalable, and AI driven software while owning the complete software development lifecycle from architecture and implementation to deployment, monitoring, and production support.

Software Development Engineer - CodeHall Technologies Pvt. Ltd. - Bangalore, India

(2023-04)

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M.Sc. - Computer Science - West Bengal State University (2021-01 - 2023-01)

B.Sc. - Computer Science - West Bengal State University (2018-01 - 2021-01)