The Sr. Principal Data Scientist ML/DL is a primary driver in the design and development of state-of-the-art Artificial Intelligence solutions for medical applications. The Principal Data Scientist ML/DL works closely with senior data scientists, machine learning engineers, software engineers and subject matter experts on current company technologies and forward-looking projects. They are the drivers of recent research and solution implementation in the creation of novel artificial intelligence approaches.

Primary responsibilities include the enhancement of existing company NLP technologies and extension of those systems in new cloud-based applications. Emphasis is on development of novel machine/deep learning techniques for information extraction and synthesis. They translate research code into clinical NLP solutions deployed at scale in production environments including statistical methods, deep learning, and large language model technologies.



Work will involve all aspects of methods development from initial PoC implementation to performance characterization and production launch of new methods.

The successful candidate will have a solid history of publication in Machine/Deep Learning with an emphasis on Natural Language Processing, Information Retrieval and/or Information Extraction. Exposure to recent research literature and the ability to effectively implement new technologies is key. The successful candidate will have proven success in taking machine/deep learning solutions to production environments. Solid technical skills are required.

Primary Responsibilities:
- Lead end-to-end training and fine-tuning of Large Language Models (LLMs), including both open-source (e.g., Qwen, LLaMA, Mistral) and closed-source (e.g., OpenAI, Gemini, Anthropic) ecosystems.
- Architect and implement GraphRAG pipelines, including knowledge graph representation and retrieval for enhanced contextual grounding.
- Design, train, and optimize semantic and dense vector embeddings for d

📌 Senior Principal Data Scientist (Hyderabad)
🏢 Optum
📍 Hyderabad