Optum is hiring a Senior Data Scientist to develop and deliver large-scale predictive modeling projects for healthcare Payment Integrity processes. You'll guide Data Scientists and pioneer innovative approaches to solve complex analytics problems for Optum Insight.
What You'll Do
- Apply advanced statistical and predictive modeling techniques to build, maintain, and improve multiple predictive detection engines.
- Lead discovery processes with Data Scientists and partner with Payment Integrity Operations management to define business requirements.
- Create sound statistical analyses and frame business scenarios that impact critical business decisions.
- Contribute to the development of Agentic AI architectures using new technologies to solve business challenges.
- Design sampling methodology, prepare data (including cleaning and imputation), identify analytic methods, and develop predictive models.
- Communicate analytics results and predictive models to business partners and clients.
- Track and monitor model performance, recommending ongoing improvements to methods and algorithms.
What We're Looking For
- Proven experience in data science and building predictive models.
- Proven experience in manipulating large datasets.
- Proven experience in delivering production-grade AI/ML pipelines.
- Demonstrated solid expertise in programming in Python and SQL.
- Proven experience with distributed computing technologies such as PySpark.
- Proven experience with Git / GitHub for version control.
Nice to Have
- Proven experience with healthcare claims data.
- Proven experience with Azure, Databricks, Snowflake, LLMs and/or similar tools.
- Demonstrated problem-solving and analytical thinking skills.
- Demonstrated organizational skills with the ability to be flexible and work with ambiguity.
Technical Stack
- Python, SQL, PySpark, Git, GitHub, Azure, Databricks, Snowflake, LLMs
Team & Environment
You'll join the Payment Integrity Data Science team within Optum Insight.
Benefits & Compensation
- Comprehensive benefits.
- Career development opportunities.
Work Mode
This is a hybrid position. You'll be based in either Dublin or Letterkenny.
Our culture is guided by diversity and inclusion, focused on caring, connecting, and growing together, and we are committed to advancing health equity on a global scale.
Optum is an Equal Employment Opportunity employer and all qualified applicants will receive consideration for employment without regard to gender, civil status, family status, sexual orientation, disability, religion, age, race, and membership of the Traveller community, or any other characteristic protected by law.


