Senior Full Stack Developer - Cybersecurity

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 diversity and inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health equity on a global scale. Join us to start Caring. Connecting. Growing together. The Sr. Full Stack Software Engineer (Job Code-TEC032 / GL-28) (Vue.js / Java Spring Boot / Python) is responsible for designing, building, and maintaining secure, scalable web applications and AI-enabled platform capabilities that support our cybersecurity products and services. This role spans frontend and backend development, with a focus on building intuitive, high-performance user interfaces using Vue.js, robust APIs and backend services using Spring Boot and Python, and scalable cloud-native solutions deployed in Azure environments. This role operates at the intersection of frontend engineering, backend services, cloud infrastructure, cybersecurity, and applied AI development. The Sr. Full Stack Software Engineer partners closely with product managers, security specialists, DevOps engineers, and other cross-functional team members to deliver reliable, observable, and secure end-to-end solutions supporting complex cybersecurity workflows, intelligent automation, and AI-assisted user experiences. The role also includes contributing to AI-powered product features leveraging large language models (LLMs), semantic search, retrieval-augmented generation (RAG), vector indexing, and contextual retrieval technologies. The engineer will help design and implement services and pipelines supporting document ingestion, embeddings, intelligent search, and AI-driven workflows integrated into customer-facing applications. You will enjoy the flexibility to telecommute* from anywhere within the U.S. as you take on some tough challenges.

Key Accountabilities: Design, implement, and maintain end-to-end features across the frontend (Vue.js) and backend services (Spring Boot and Python) Build secure, responsive, and user-friendly interfaces that visualize complex cybersecurity data and workflows Develop and maintain RESTful APIs, business logic, and data access layers using Spring Boot, Python services, and ORM frameworks Design and implement AI-powered product features leveraging large language models (LLMs), semantic search, retrieval-augmented generation (RAG), and intelligent workflow automation Build and maintain data ingestion, indexing, embedding, and retrieval pipelines to support AI-driven search and contextual experiences Develop Python-based services and workflows for AI orchestration, document processing, data transformation, and automation Integrate third-party and cloud-based AI services (e.g., Azure OpenAI, vector databases, embedding services) into customer-facing applications Model and manage relational database schemas and entity relationships to support product requirements Leverage Azure cloud services to deploy and operate full stack applications with a focus on reliability, performance, security, and scalability Apply secure coding practices across the stack, addressing common web and API vulnerabilities (e.g., OWASP Top 10) Contribute to and follow CI/CD pipelines (e.g., GitHub Actions, Azure DevOps) for building, test, and deployment of frontend and backend components Participate in code reviews and design discussions, ensuring quality, maintainability, and alignment with architectural standards Troubleshoot and resolve issues across the stack, focusing on root cause analysis and long-term improvements Collaborate with cross-functional teams to translate requirements into technical designs and implementations