Senior Data Scientist @ Optum

Optum's Applied AI team is seeking a detail-oriented and proactive Senior Data Scientist (Core in Data Analysis) with minimum 3-4 years of industry experience to support the development and maintenance of data pipelines that fuel AI/ML initiatives. You will work closely with data engineers and other data scientists to enable large scale data analysis of prior ML inferred data - structured and unstructured clinical datasets. This role blends hands-on data wrangling, transformation logic, and insight generation in a highly collaborative environment.

Primary Responsibilities:

• Collaborate with cross-functional teams - including ML engineers, annotators, and clinical domain experts - to translate business challenges into deployable AI solutions
• Implement automated data labeling pipelines using techniques like active learning, weak supervision, and human-in-the-loop systems
• Support the design, development, and maintenance of scalable data pipelines for AI/ML workflows
• Perform exploratory data analysis (EDA), profiling, and validation on healthcare data to ensure readiness for downstream ML tasks
• Partner with data scientists to prepare datasets for model training, evaluation, and monitoring
• Ensure data quality, consistency, and documentation across structured (e.g., EHRs) and unstructured (e.g., scanned PDFs) sources
• Integrate and monitor data workflows using orchestration tools (e.g., Airflow, Step Functions)
• Build dashboards or reports to communicate insights, trends, or pipeline health as needed
• 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