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umesh siddharth

@umeshsiddharth

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I build production-grade AI, ML, and RAG systems for healthcare and financial-services workflows.

United Kingdom

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What I'm looking for

I'm looking to build production AI, ML, and GenAI systems end-to-end, especially for healthcare or financial-services workflows where reliable, grounded, privacy-conscious models matter.

I've built production-grade AI and machine learning systems at C R Technologies and Virtusa, delivering healthcare and financial-services applications from data pipelines through deployment.

At C R Technologies, I developed a healthcare document Q&A application using LangChain, OpenAI and Anthropic Claude APIs, RAG, FAISS/Chroma, and autonomous agent workflows. I improved factual grounding by ~25%, reduced unsupported responses by ~60%, and achieved ~92% answer relevance.

At Virtusa, I built risk-scoring, customer-analytics, semantic search, and NLP platforms using Python, SQL, PySpark, XGBoost, BERT, GCP, Docker, and Kubernetes, supporting 50K+ daily predictions at 99.9% uptime.

Experience

Work history, roles, and key accomplishments

Current

AI / Machine Learning Engineer

Current

C R Technologies

Jun 2025 - Present (1 year 3 months)

Built reusable Python and PySpark data pipelines for healthcare text ingestion, preprocessing, and feature engineering, cutting data-prep time by ~40%. Developed a healthcare document Q&A application using LangChain, OpenAI and Anthropic Claude APIs, and RAG with FAISS/Chroma vector search, achieving ~92% answer relevance.