The Role
Design, research, fine-tune, and deploy advanced AI/ML models (including LLMs and agentic systems). Build production training pipelines, optimize infrastructure, benchmark models, ensure ethical AI, mentor staff, and integrate solutions with cross-functional teams.
Summary Generated by Built In
Requisition Number: 2360926
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.
Primary Responsibilities:
Required Qualifications:
Preferred Qualifications:
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.
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.
Primary Responsibilities:
- Fine-tunes a large language model on proprietary data to improve its performance
- Develops new machine learning models from scratch
- Experiments with novel model architectures or algorithms
- Conducts and publishes research on AI models
- Research and develop cutting-edge AI models, including deep learning, reinforcement learning, and generative architectures
- Advance agentic capabilities by designing autonomous systems that can reason, plan, and interact with complex environments
- Prototype and refine novel algorithms to improve model performance, scalability, and interpretability
- Collaborate with cross-functional teams to translate theoretical advancements into practical enterprise applications
- Conduct rigorous experimentation and benchmarking to evaluate model efficacy and robustness
- Publish findings, contribute to open-source initiatives, and stay abreast of emerging trends in AI research
- Ensure ethical AI development by incorporating fairness, transparency, and accountability into model design
- Optimize training pipelines and infrastructure for large-scale model deployment and continuous learning
- Mentor junior researchers and contribute to the development of internal AI knowledge bases and best practices
- Partner with data engineering and product teams to integrate AI solutions into production systems
- 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 regard 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:
- Bachelor's or master's degree in computer science, Engineering, or a related field
- 8+ years of experience in software development
Including 3+ years of experience delivering solutions with a focus on AI/ML - Extensive experience implementing generative AI solutions using OpenAI compatible APIs
- Hands-on experience with Azure Functions, Azure Monitor, and App Insights.
- Experience with frontend development using React or Angular, and backend services using Java or .NET
- Experience with Cloud-based AI and data services like Python, Databricks, RAG, Agentic, AI Foundary, LangFuse
- Experience in GitHub & M365 Copilot,Deep learning frameworks such as PyTorch, TensorFlow, Scikit Learn
- Solid understanding of RAG architecture including knowledge of vector databases and semantic search
- Expertise in Azure Document Intelligence, OCR, and Databricks
- Advanced proficiency in Python for AI/ML and automation
- Enterprise search, NLP, Speech AI, Vision AI, Supervised & unsupervised ML
- Lead the design and implementation of intelligent applications using Azure OpenAI, LLM Gateway, and Retrieval
- Augmented Generation (RAG) techniques
- Ability to drive end-to-end delivery of AI-powered solutions across cross-functional teams
- Proven excellent communication and stakeholder management skills
Preferred Qualifications:
- Azure certifications (e.g., Azure AI Engineer Associate, Azure Developer Associate)
- Experience with prompt engineering and fine-tuning LLMs
- Experience working in agile development environments
- Agentic AI concepts & Implementation
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.
Skills Required
- Bachelor's or master's degree in computer science, Engineering, or a related field
- 8+ years of experience in software development, including 3+ years delivering AI/ML solutions
- Extensive experience implementing generative AI solutions using OpenAI compatible APIs
- Hands-on experience with Azure Functions, Azure Monitor, and Application Insights
- Frontend development experience using React or Angular
- Backend services experience using Java or .NET
- Experience with Python, Databricks, RAG, Agentic concepts, AI Foundary, LangFuse
- Experience with GitHub and M365 Copilot
- Deep learning frameworks such as PyTorch, TensorFlow, Scikit-learn
- Solid understanding of RAG architecture, vector databases, and semantic search
- Expertise in Azure Document Intelligence and OCR
- Advanced proficiency in Python for AI/ML and automation
- Experience in enterprise search, NLP, Speech AI, Vision AI, supervised and unsupervised ML
- Lead design and implementation using Azure OpenAI, LLM Gateway, and Retrieval techniques
- Experience with Augmented Generation (RAG) techniques
- Ability to drive end-to-end delivery of AI-powered solutions and strong stakeholder management
- Proven excellent communication skills
- Experience conducting and publishing AI research
Optum Compensation & Benefits Highlights
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Healthcare Strength — Health coverage offers copay and HSA medical options with dental, vision, company‑paid life and disability, and free or low‑cost virtual visits. Feedback suggests the offering is comprehensive and competitive on paper.
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Parental & Family Support — Time off and family supports include PTO, eight paid holidays plus a floating day, six weeks paid parental leave, up to two weeks paid caregiver leave, Bright Horizons back‑up care, and adoption assistance up to $10,000. Feedback suggests these resources are meaningful for caregivers and family needs.
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Retirement Support — Savings programs include a 401(k) with employer match (after one year, vesting after two) and a 10%‑discount Employee Stock Purchase Plan. These programs bolster long‑term financial security when combined with other savings resources.
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The Company
What We Do
Optum, part of the UnitedHealth Group family of businesses, 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. At Optum, we support your well-being with an understanding team, extensive benefits and rewarding opportunities. By joining us, you’ll have the resources to drive system transformation while we help you take care of your future. We recognize the power of connection to drive change, improve efficiency and make a difference in health care. Join a team where your skills and ideas can make an impact and where collaboration is key to creating technology that produces healthier outcomes.
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Optum Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
Optum has three workplace models that balance the needs of the business and the responsibilities of each role. These models, core on‑site (5 days/week), hybrid (4 days/week) and telecommute or fully remote, vary by country, role and location.
Typical time on-site:
Not Specified
