AI/ML Engineer Remote Nationwide or Hybrid in MN/DC

Job ID: 98803640704Posted: 2026-08-05Location: Minnetonka, Minnesota, United StatesSalary: $98,500 - $176,000/yearJob Area: TechnologyCompany: UnitedHealth GroupOptum Tech is a global leader in health care innovation. Our teams develop cutting-edge solutions that help people live healthier lives and help make the health system work better for everyone. From advanced data analytics and AI to cybersecurity, we use innovative approaches to solve some of health care's most complex challenges. Your contributions here have the potential to change lives. Ready to build the next breakthrough? Join us to start Caring. Connecting. Growing together.We are looking for a talented and motivated Software Engineer to join our team. The perfect candidate will have experience with LLMs and be skilled in developing and implementing machine learning solutions. You will utilize the LangChain framework to work with both closed source and open source models and apply fine-tuning and Retrieval-Augmented Generation (RAG) methodologies to optimize language models for specific tasks and datasets.You'll enjoy the flexibility to work remotely * from anywhere within the U.S. as you take on some tough challenges. For all hires in the Minneapolis or Washington, D.C. area, you will be required to work in the office a minimum of four days per week.Primary Responsibilities:Develop and implement machine learning solutions using LLMsUtilize the LangChain framework for working with closed source and open-source modelsApply fine-tuning methodologies to optimize machine learning models for specific tasks and datasetsWrite clean, maintainable, and efficient code adhering to PEP8 standardsUtilize containerization technologies such as Docker for development and deploymentEnsure the production quality of code, including thorough testing and documentationBe comfortable working on the terminal for various development and deployment tasksWork on traditional machine learning methods like XGBoost for classification tasks and unsupervised learning techniques like K-meansYou'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. Required Qualifications:Undergraduate degree or equivalent experience3+ years of proven experience working with Large Language Models (LLMs)3+ years of experience with machine learning concepts and fine-tuning methodologies3+ years of professional coding experience in Python, following PEP8 standardsExperience using the LangChain frameworkExperience with Retrieval-Augmented Generation (RAG) techniquesExperience with containerization technologies such as DockerExperience ensuring production-quality code, including thorough testing and documentationExperience with version control systems such as GitSolid problem-solving skills and attention to detailAbility to write clean, maintainable, and efficient codeComfortable working in the terminal for development and deployment tasksAuthorized to work in the United States without the need for current or future employer-sponsored visa sponsorship (e.g., H-1B, TN, F-1/OPT, CPT, or other employment-based visa status)Preferred Qualifications: Healthcare experienceStatistical knowledge#OptumTechPJ*All employees working remotely will be required to adhere to UnitedHealth Group's Telecommuter Policy.Pay is based on several factors including but not limited to local labor markets, education, work experience, certifications, etc. In addition to your salary, we offer benefits such as, a comprehensive benefits package, incentive and recognition programs, equity stock purchase and 401k contribution (all benefits are subject to eligibility requirements). No matter where or when you begin a career with us, you'll find a far-reaching choice of benefits and incentives. The salary for this role will range from $98,500 - $176,000 annually based on full-time employment. We comply with all minimum wage laws as applicable.Application Deadline: This will be posted for a minimum of 2 business days or until a sufficient candidate pool has been collected. Job posting may come down early due to volume of applicants.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.UnitedHealth Group is an Equal Employment Opportunity employer under applicable law and qualified applicants will receive consideration for employment without regard to race, national origin, religion, age, color, sex, sexual orientation, gender identity, disability, or protected veteran status, or any other characteristic protected by local, state, or federal laws, rules, or regulations.UnitedHealth Group is a drug - free workplace. Candidates are required to pass a drug test before beginning employment.