Hiring: Senior AI/ML Engineer - Remote Company: Optum Location: Eden Prairie, MN Job Posted Time: 2026-09-16 15:57:54 Employment Type: Full-time Target Skills & Keywords: Generative AI, NLP, Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), Transformer Architectures, Agent-Based AI Systems, Machine Learning Engineering, Healthcare AI, Conversational AI, Embedding Generation Experience: - Senior-level experience in AI/ML engineering - Proven expertise in designing and deploying generative AI and NLP solutions - Hands-on experience developing and fine-tuning LLM applications - Experience building RAG pipelines end-to-end Required Skills: - Design and deploy generative AI and NLP solutions using transformer-based architectures for enterprise use cases such as search, summarization, extraction, conversational AI, and decision support - Develop and fine-tune large language model (LLM) applications using commercial and open-source models such as OpenAI, Anthropic/Claude, Gemini, LLaMA, or Mistral - Design and implement retrieval augmented generation (RAG) pipelines including document ingestion, chunking strategies, and embedding generation - Build production-grade AI systems with a focus on reliability, performance, and safety - Work on agent-based AI systems Qualifications: - Deep expertise in AI/ML engineering for healthcare - Ability to collaborate across data science, engineering, product, and healthcare domains - Commitment to responsible AI/ML innovation - Candidates in the Minneapolis or Washington, D.C. area must be able to work in the office a minimum of four days per week Compensation: Not specified in the job posting Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don’t miss this opportunity to join a forward-thinking team!