Principal Software Engineer - Remote

Optum 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 seeking a Senior Application Developer with solid expertise in Generative AI across both open source and AWS ecosystems. The role focuses on building scalable AI-driven applications, conversational solutions, and agentic systems using modern GenAI frameworks while leveraging cloud platforms for deployment and integration. The candidate will play a key role in designing, developing, and delivering intelligent digital experiences.

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

• Design and develop AI-driven applications and conversational solutions
• Build and optimize chatbot and virtual assistant experiences
• Contribute to HLD/LLD and solution design decisions
• Ensure scalability, performance, and maintainability of applications
• Develop production-grade GenAI applications using open-source frameworks (LangChain, LangGraph)
• Build RAG pipelines, semantic search, and knowledge-based assistants
• Implement agentic workflows and multi-agent orchestration
• Work with LLMs (Claude, GPT, Llama, Mistral) and apply prompt engineering techniques
• Design evaluation, observability, and guardrails for AI systems
• Leverage AWS services such as Amazon Bedrock, Lambda, and API integrations
• Integrate AI solutions with enterprise applica...