Rajarshi Mitra

Machine Learning & Generative AI Engineer
Kolkata, IN.

About

Highly accomplished AI/ML Engineer with a Master's degree in Computer Science and Engineering, specializing in Generative AI, Large Language Models (LLMs), and advanced machine learning techniques. Proven ability to design, develop, and deploy high-impact AI solutions, including a Medical RAG Chatbot that achieved 85%+ accuracy and reduced query latency by 40%, and a Pix2Pix GAN for state-of-the-art underwater image enhancement. Expert in end-to-end ML workflows, MLOps, and optimizing cloud resource utilization, driving significant improvements in efficiency and performance.

Work

Tata Consultancy Services (TCS)
|

AI/ML Engineer

Kolkata, West Bengal, India

Summary

As an AI/ML Engineer, led the full lifecycle development and deployment of advanced AI/ML solutions, including a high-impact Medical RAG Chatbot, driving significant improvements in performance and operational efficiency.

Highlights

Engineered and deployed a Medical RAG Chatbot utilizing LangChain and Pinecone, achieving an 85%+ accuracy rate and reducing query latency by 40% for enhanced diagnostic support.

Optimized cloud resource utilization by implementing Mistral-based local LLMs for on-premise inference, resulting in a 60% reduction in cloud API costs.

Streamlined ML operations by developing end-to-end ML workflows and Dockerized services with CI/CD, decreasing deployment time from 2 weeks to 3 days.

Facilitated real-time access and adoption for over 50 healthcare professionals by deploying the Medical RAG Chatbot through Streamlit, ensuring seamless integration into clinical workflows.

Education

Jadavpur University
Kolkata, West Bengal, India

Master of Engineering

Computer Science and Engineering

Grade: 7.78 CGPA

Academy of Technology
Adisaptagram, West Bengal, India

Bachelor of Technology

Computer Science and Engineering

Grade: 9.05 CGPA

Awards

GATE 2022 Qualification

Awarded By

Graduate Aptitude Test in Engineering (GATE)

Achieved 91.25 percentile in the highly competitive Graduate Aptitude Test in Engineering (GATE) in Computer Science and Information Technology (CSIT).

Publications

Perceptually Driven Loss Function Modelling for Training GAN to Enhance Underwater Images

Published by

CVIP Conference

Summary

Co-authored a research paper titled "Perceptually Driven Loss Function Modelling for Training GAN to Enhance Underwater Images," presented at the CVIP Conference in 2024.

Languages

English

Certificates

Python for Data Science, AI & Development

Issued By

IBM via Coursera

Machine Learning with Python

Issued By

IBM via Coursera

Machine Learning A-Z: AI, Python

Issued By

Udemy

The Python Bible: Complete Python Development

Issued By

Udemy

Skills

Programming & ML

Python 3, SQL, Scikit-Learn, TensorFlow, PyTorch, Keras, XGBoost, Hugging Face Transformers, LangChain, RAG, FAISS.

Data Handling

Pandas, NumPy, Feature Engineering, Data Cleaning.

AI/ML Techniques

Deep Learning, NLP, Generative AI, LLMs, Prompt Engineering, Ensemble Methods, Transfer Learning.

Computer Vision & GANs

OpenCV, CNNs, Autoencoders, Pix2Pix, GANs.

Deployment & MLOps

FastAPI, Streamlit, CI/CD, Docker, Azure ML.

Soft Skills

Communication, Critical Thinking, Problem Solving, Collaboration.

Algorithmic & Problem-Solving

LeetCode (350+ problems solved).

Projects

GAN-based Underwater Image Enhancement using Perceptually Driven Loss Functions

Summary

Developed a cutting-edge GAN-based solution for underwater image enhancement, leveraging novel perceptual loss functions to significantly reduce haze, color distortion, and structural degradation.