Senior Site Reliability Engineer

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:

• Lead end-to-end design and implementation of AI Ops solutions from concept through production with an emphasis on responsible AI practices
• Contribute to the improvement of our SRE practices; Lead incident response; Ensure high availability, scalability, and performance of cloud environments
• Automate Infrastructure & Operations: Develop Infrastructure as Code using Terraform & GitHub Actions while adhering to best practices
• Define and own solution architecture for RAG pipelines, agentic workflows, tool calling, orchestration, and conversational context management
• Design, develop, and deploy AI-powered solutions to address complex business challenges across enterprise scale using RAG based solutions 
• Work closely with development and SRE teams to improve system design, advocate for reliability, and mentor fellow engineers
• Design, code, test, and operate software using Python & Node.js
• Leverage enterprise-approved AI tools to streamline workflows, automate tasks, and drive continuous operational efficiency
• 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:

• Bachelor's degree in information systems, Computer Science, Engineering, or related field or equivalent certification
• 5+ years of overall software engineering and Site Reliability Engineering (SRE) experience in a public cloud environment (GCP, AWS, Azure) 
• 3+ years of demonstrated hands-on experience with Python and Terraform based development 
• 2+ years delivering AI/ML or Generative AI solutions in production 
• 2+ years of experience managing Kubernetes environments (EKS, AKS, GKE, or self-hosted) 
• Available to work rotating 24x7 primary and secondary on-call shifts

Preferred Qualifications:

• Hands-on experience with cloud infrastructure automation, observability tools, and SRE best practices for AI workloads 
• Experience leading globally distributed technical teams 
• Experience with vector search and enterprise search solutions 
• CI/CD (GitHub Actions preferred) & Infrastructure as Code experience with Terraform 
• Proven experience building Retrieval Augmented Generation (RAG) pipelines, Agentic AI, or multi-step AI workflows 
• Proven experience building evaluation and monitoring frameworks for AI quality 
• Proven effective communication skills with ability to explain complex technical concepts to diverse stakeholders

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.