Note: The job is a remote job and is open to candidates in USA. Optum delivers technology-enabled care and health services that help millions of people live healthier lives. The Senior Data Scientist will use machine learning, large language models, and healthcare analytics to develop scalable data science solutions, improve claims payment integrity, and communicate actionable insights to technical and business stakeholders.
Responsibilities
- Utilize large language models (LLMs) to enhance analytic methodologies and support innovation across core product lines
- Design, develop, and maintain data science solutions, including data preparation, feature engineering, model development, evaluation, deployment, and monitoring
- Collaborate with engineering and product teams to implement and maintain scalable machine learning models in production environments
- Communicate technical findings, insights, and recommendations clearly to both technical and business stakeholders
- Support innovation initiatives in machine learning and AI by evaluating and applying new techniques and technologies
- Independently analyze complex data problems and recommend actionable solutions that deliver measurable business value
- Contribute to best practices in model development, code quality, documentation, and reproducibility
- Partner with cross-functional teams to ensure analytical solutions align with business objectives and operational needs
- Assist in evaluating and implementing emerging technologies such as foundation models, retrieval-augmented generation (RAG), and advanced NLP techniques
- Demonstrated problem-solving, communication, and collaboration skills
Skills
- • 3+ years of experience developing and deploying predictive models using machine learning, deep learning, NLP, or related techniques
- • 3+ years of experience using machine learning libraries and frameworks such as Scikit-learn, PyTorch, TensorFlow, or SparkM
- • 3+ years of professional experience programming in Python for data science and machine learning applications
- • 2+ years of experience writing complex SQL queries for data extraction, transformation, and analysis
- • 1+ years of hands-on experience with large language model (LLM) frameworks such as Hugging Face Transformers, LangChain, or OpenAI APIs
- • 1+ years of experience working with cloud platforms such as AWS, Azure, or GCP
- • Experience using Apache Spark for distributed data processing and large-scale data transformations
- • Experience using Git for version control and collaborative software development
- • Experience working with healthcare data, claims analytics, or payment integrity solutions
Benefits
- Flexibility to work remotely from anywhere within the U.S.
- Comprehensive benefits package
- Incentive and recognition programs
- Equity stock purchase
- 401k contribution
- Career development opportunities
- Development for other roles you may be interested in
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