Lead Data Scientist - Machine Learning, NLP, R, Python, Gen AI

Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find a culture guided by inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health optimization on a global scale. Join us to start Caring. Connecting. Growing together.

We are seeking an AI Builder for our TAI initiative to develop a conversational bot using RAG framework and LLM, Develop new models and integrate GenAI to analyze the data.

Positions in this function produce innovative solutions driven by exploratory data analysis from unstructured, diverse datasets typically measured in gigabytes or larger. Applies knowledge of statistics, machine learning, programming, data modeling, simulation, and advanced mathematics to recognize patterns, identify opportunities, pose business questions, and make valuable discoveries leading to prototype development and product improvement. Uses a flexible, analytical approach to design, develop, and evaluate predictive and prescriptive models and advanced algorithms that lead to optimal value extraction from the data. Works with analytics and statistical software such as SQL, R, Python, Hadoop and others to perform analysis and interpret data. This function is not intended for employees performing the following work: less complex analysis on small data sets rules-based algorithmic or descriptive analytics development of big data infrastructure.

Primary Responsibilities:

• Reviews the work of others
• 
  Develops innovative approaches
• Sought out as expert
• Serves as a leader/ mentor
• Comply with the terms and conditions of the employment contract, company policies and procedures, and any and all directives (such as, but not limited to, transfer and/or re-assignment to different work locations, change in teams and/or work shifts, policies in regard to flexibility of work benefits and/or work environment, alternative work arrangements, and other decisions that may arise due to the changing business environment). The Company may adopt, vary or rescind these policies and directives in its absolute discretion and without any limitation (implied or otherwise) on its ability to do so

Required Qualifications:

• Bachelors or Masters or PhD in Computer Science, Artificial Intelligence, Machine Learning, or a related field
• 5+ years of proven experience in AI/ML, with a robust portfolio of successful AI projects
• Experience with MCP servers and understanding their application in AI/ML projects

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• Expertise in NLP, prompt engineering, and the development of intelligent agents
• Solid programming skills in Python, R, or Java
• Familiarity with AI/ML frameworks and libraries such as TensorFlow, PyTorch, Keras, etc.
• Proven excellent analytical, problem-solving, and organizational skills
• Solid leadership skills and experience in managing small to medium-sized teams
• Effective communication skills, with proficiency in presenting technical details to a non-technical audience

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