> Markdown version of [/jobs/ext/3798836-senior-ai-ml-engineer](https://www.wearedevelopers.com/jobs/ext/3798836-senior-ai-ml-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior AI/ML Engineer - **Company:** Optum, Inc - **Location:** Hopkins, MN, United States (Remote available) - **Experience:** Expert - **Salary:** $120,100.0 - $214,500.0 - **Contract:** Permanent contract - **Skills:** LangGraph Framework, AI Evaluation, Artificial Intelligence, Amazon S3, Big Data, Continuous Integration, Data Integrity, Graph Database, Monitoring of Systems, Information Retrieval, Python (Programming Language), Knowledge-Based Systems, Machine Learning, Natural Language Processing, Search Technologies, Software Engineering, Workflow Management Systems, Feature Engineering, Data Ingestion, Retrieval-Augmented Generation, Large Language Models, Multi-Agent Systems, Prompt Engineering, Hallucination Detection, AgentCore, Generative AI, Agentic-AI, AI Platforms, Information Technology, CrewAI, AutoGen, Machine Learning Operations, Graph RAG, Semantic Kernel, Serverless Computing, OpenSearch - **Published:** October 17, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=b52545b1ebc3c595 ## About the Role * Bachelor's or Master's Degree in Computer Science, Artificial Intelligence, Machine Learning, Data Science, Engineering, or a related technical field * 5+ years of software engineering, AI engineering, or machine learning engineering experience * 3+ years of hands-on experience developing AI/ML solutions, including Generative AI, LLMs, NLP, and traditional machine learning models * 3+ years of experience designing, building, and deploying production-grade LLM applications, RAG pipelines, AI agents, and orchestration workflows * 5+ years of solid Python development experience supporting AI and data-intensive applications * 3+ years of experience with AWS AI and cloud-native services including Bedrock, SageMaker, Lambda, OpenSearch, ECS/EKS, and S3 * 2+ years of experience with vector databases, embeddings, semantic search, and enterprise knowledge retrieval systems * 2+ years of experience implementing MLOps, LLMOps, model monitoring, evaluation frameworks, and AI operationalization practices Preferred Qualifications: * 2+ years of hands-on experience with Agentic AI frameworks such as LangGraph, Semantic Kernel, CrewAI, AutoGen, MCP, or AgentCore * Experience implementing multi-agent architectures and autonomous workflow orchestration * Experience with AI evaluation frameworks, hallucination reduction techniques, model benchmarking, and prompt optimization * Demonstrated familiarity with Knowledge Graphs, Ontologies, GraphRAG, and enterprise knowledge systems. * Experience building reusable AI platform services supporting multiple use cases * Experience implementing Retrieval-Augmented Generation (RAG), prompt engineering, semantic search, and knowledge retrieval systems * All employees working remotely will be required to adhere to UnitedHealth Group's Telecommuter Policy. ## Description * Design, develop, and deploy scalable AI/ML models and automation solutions to solve complex business problems * Build and maintain end-to-end ML pipelines including data ingestion, feature engineering, model training, and deployment * Develop automation frameworks for model training, testing, validation, and monitoring (MLOps) * Collaborate with data science, engineering, product, and business teams to deliver AI-driven solutions * Optimize model performance through continuous evaluation, tuning, and retraining strategies * Ensure scalability, reliability, and governance of AI models including compliance and data integrity * Integrate AI/ML solutions into production systems using CI/CD and cloud platforms * Stay updated with emerging AI/ML technologies and automation best practices to drive innovation You'll be rewarded and recognized for your performance in an environment that will challenge you and give you clear direction on what it takes to succeed in your role as well as provide development for other roles you may be interested in.