Senior Software Engineer I

Requisition Number: 2369220
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:

• Design and develop scalable voice/IVR applications using TypeScript, AWS Lex, and LLM-based AI
• Implement intelligent intent detection and conversational flows using LLMs to enhance Lex capabilities
• Build backend services and APIs using AWS (Lambda, API Gateway, DynamoDB)
• Integrate IVR systems with telephony platforms and enterprise applications
• Develop end-to-end voice solutions including call routing, prompts, fallback handling, and AI-driven responses
• Optimize voice interactions for accuracy, latency, and user experience
• Monitor, troubleshoot, and improve production IVR/AI systems
• Collaborate with product, UX, and data/AI teams to deliver conversational AI solutions
• Write clean, testable, and maintainable code following best practices
• Participate in code reviews, agile processes, and continuous improvement
• 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 Computer Science, Engineering, or related field
• 5+ years of software development experience with solid TypeScript/JavaScript skills
• Hands-on experience with AWS services (Lex, Lambda, API Gateway, DynamoDB)
• Experience building conversational AI/IVR systems and integrating with telephony platforms
• Experience with LLMs (AWS Bedrock, OpenAI, Azure OpenAI) for intent detection and conversational AI
• Experience with cloud-native application development and deployment on AWS
• Knowledge of debugging, performance optimization, and system reliability
• Solid understanding of RESTful APIs and microservices architecture
• Familiarity with Amazon Bedrock for building, deploying, and scaling generative AI applications
• Proficiency with Git and CI/CD practices
• Demonstrated solid problem-solving, communication, and collaboration skills

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.
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