Senior AI ML Engineer

Requisition Number: 2364162
Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find a culture guided by inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health optimization on a global scale. Join us to start Caring. Connecting. Growing together.
We are seeking a Senior AI Engineer who will operate as an individual contributor while demonstrating leadership capabilities in driving AI initiatives. The ideal candidate will have deep expertise in machine learning (ML), deep learning (DL), and deploying solutions on Google Cloud Platform (GCP). Experience with Dialogflow CX and/or Google GECX, Vertex AI, Python, LLMs, Agentic AI systems, and Google's AI Development Kit (ADK) is essential. A solid GitHub presence showcasing real-world projects is highly valued. Knowledge in LiveKit platform is valued.
Primary Responsibilities:

• Design, develop, and deploy ML/DL models using Vertex AI, Python, and GCP-native tools
• Build and optimize conversational AI agents using Dialogflow CX, integrating with APIs and backend systems
• Develop and fine-tune Large Language Models (LLMs) for various NLP tasks, including summarization, classification, and question answering
• Implement Agentic AI systems that can autonomously plan, reason, and execute tasks using LLMs and orchestration frameworks
• Leverage Google ADK to build, test, and deploy scalable AI applications aligned with GCP best practices
• Integrate and experiment with Agentic AI frameworks to enhance autonomous decision-making and task execution capabilities
• Lead by example in technical design, code quality, and solution architecture, mentoring junior engineers informally
• Collaborate cross-functionally with engineering and product teams to translate business needs into scalable AI solutions
• Maintain and showcase code and projects on GitHub, ensuring reproducibility and collaboration
• Monitor model performance, conduct A/B testing, and iterate based on feedback and metrics
• Automate ML workflows using CI/CD pipelines, Docker, Kubernetes, and MLOps best practices
• 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 regards 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

Required Qualifications:

• BTECH/BE
• Experience in Google Dialogflow,GECX,Vertex AI
• Building AI solutions in Conversational AI
• Livekit knowledge

At UnitedHealth Group, our mission is to help people live healthier lives and make the health system work better for everyone. We believe everyone-of every race, gender, sexuality, age, location and income-deserves the opportunity to live their healthiest life. Today, however, there are still far too many barriers to good health which are disproportionately experienced by people of color, historically marginalized groups and those with lower incomes. We are committed to mitigating our impact on the environment and enabling and delivering equitable care that addresses health disparities and improves health outcomes - an enterprise priority reflected in our mission.