Senior AI/ML Engineer

Expert-Level Python For Production Systems

Proven ability to architect and write clean, typed, and testable code for distributed systems. Experience building systems that communicate via message queues like Azure Service Bus. In-depth knowledge of LLM vulnerabilities and experience implementing guardrails against prompt injections and data.

Asynchronous & Concurrent Programming: Mastery of Python's asyncio to build scalable, I/O-bound services. Deep, hands-on experience with FastAPI and Pydantic for building robust, schema-validated microservices.

Cloud-Native Development: Strong experience with Docker for applications and deploying orchestrated environments like Kubernetes (AKS). Experience on explainable AI tools such as LIME and SHAP.

Undergraduate degree or equivalent experience. Master's or relevant in Computer Science, Machine Learning, or related field. 8+ years of experience in AIML engineering and research. Experience with experiment tracking tools (e.g., Weights & Biases, MLflow). Hands-on experience with MLOps, model deployment, and monitoring. Proven expertise in LLMs, generative AI, and deep learning. Solid programming skills in Python and familiarity with ML libraries (e.g., scikit-learn, Keras). Familiarity with AIML governance, ethics, and responsible AI practices.

Careers with Optum. We built an entire organization around one giant objective; make the health system work better for everyone. When it comes to how we use the world's large accumulation of health-related information, or guide health and lifestyle choices or manage pharmacy benefits for millions, our first goal is to leap beyond the status quo and uncover new ways to serve. Optum, part of the UnitedHealth Group family of businesses, brings together some of the greatest minds and most advanced ideas on where health care has to go in order to reach its fullest potential. For you, that means working on high performance teams against sophisticated challenges that matter. Optum, incredible ideas in one incredible company and a singular opportunity to do your life's best work.

Diversity creates a healthier atmosphere: UnitedHealth Group is an Equal Employment Opportunity/Affirmative Action employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, national origin, protected veteran status, disability status, sexual orientation, gender identity or expression, marital status, genetic information, or any other characteristic protected by law. UnitedHealth Group is a drug-free workplace. Candidates are required to pass a drug test before beginning employment.