AI/ML Engineer

Requisition Number: 2347224
Job Responsibilities
Influences the team designs and solutions.
Responsible for prioritizing and tech stack selection for implementation for AI/ML solution.
Hands-on AI/ML engineering expert that will tackle intrinsically hard problems, acquiring expertise as needed.
Helps decompose complex problems into straightforward solutions; is customer focused.
Understands the problem space and the "why" behind the solution; identifies opportunities to improve the AI solution.
Focus on AI capability performance metrics (quality, latency, cost, reliability, and adoption/impact).
- Undergraduate degree or equivalent experience.
Core AI/ML Engineering
Foundational understanding of Machine Learning concepts.
Hands-on experience applying Statistical Models, Machine Learning Models, Deep Learning Models, and GenAI Models.
Ability to quantize and optimize GenAI models (latency/cost/performance tradeoffs).
Exposure to RAG, LangChain, and VectorDBs (or equivalent frameworks/tools).
Ability to run medium to complex proof-of-concepts in a healthcare business context involving model training, evaluation, and baselining against production systems
Platform, Scale, and Delivery
Understanding of AI platform tech stack and how models move from experimentation to production.
Experience working on large-scale training and inference of ML models.
Familiarity with evaluation metrics and model performance measurement.
Experience scaling via Databricks and PySpark (or equivalent distributed compute).
Experience with GitHub and modern engineering practices (code reviews, pair programming).
Familiarity with cloud platforms such as Azure and/or AWS
Collaboration & Leadership Behaviors
Excellent communication, writing, and presentation skills within the team.
Ability to mentor junior AI/ML engineers; collaborative, positive attitude.
Team player-able to take feedback and "disagree and commit" to the team's direction.
Fosters a culture of safety, quality, and trust
Responsible AI
Demonstrated commitment to building, testing, and deploying AI responsibly in a way that meets enterprise governance expectations (e.g., model development/testing requirements aligned to the Optum Machine Learning Review Board)
PREFERRED QUALIFICATIONS
Experience improving GenAI systems across quality, hallucination reduction, cost, and latency through experimentation and evaluation frameworks.
Experience productionizing AI/ML with CI/CD, observability, monitoring, and operational readiness in regulated environments.
Prior experience delivering AI/ML in healthcare.
Careers with Optum. Here's the idea. We built an entire organization around one giant objective; make the health system work better for everyone. So 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. SM
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.