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Arnab Chatterjee

@arnabchatterjee1

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AI/ML engineer focused on scalable LLM systems and production ML solutions.

India

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What I'm looking for

I seek roles building production ML/LLM systems with strong engineering teams, opportunities for end-to-end deployment, and measurable business impact.

I am an AI/ML engineer experienced in building scalable, production-grade machine learning and LLM systems that drive measurable business impact.

At Zintlr I improved professional profile search accuracy by 60% with an LLM-based entity extraction pipeline and optimized a FAISS-based RAG system to reduce token usage by 40% while increasing output accuracy by 45%.

I've designed end-to-end MCP integrations with OpenAI and deployed models on AWS SageMaker, and I built a speech sentiment recognition model (CNN over mel spectrograms) achieving 0.83 accuracy to support sales insights.

My projects include fuel blend property prediction (ranked 30/7000), credit card fraud detection (F1 0.92), and finetuning LLaMA3-8B for grammar assistance; I combine strong engineering, data strategy, and experimentation to deliver robust ML products.

Experience

Work history, roles, and key accomplishments

Current

AI/ML Engineer Intern

Current

Zintlr

May 2025 - Present (1 year 1 month)

Developed LLM-based entity extraction and RAG optimizations that improved search accuracy by 60% and increased RAG output accuracy by 45% while lowering token usage and costs; deployed models and services on AWS SageMaker.

OpenAI API Hugging Face Faiss AWS Sagemaker CNN LLM

Education

Degrees, certifications, and relevant coursework

Indian Institute of Information Technology, Kota

Bachelor of Technology, Computer Science

2022 -

Activities and societies: Projects and internships in AI/ML, participation in hackathons and coding platforms.

Pursuing a Bachelor of Technology in Computer Science with expected graduation in May 2026, focusing on AI/ML and software engineering through academics and practical projects.