Full Stack Developer JAVA, React, AI

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:

• Build and maintain end-to-end features across front-end, back-end, and database layers
• Develop responsive UI components using modern frameworks (e.g., React/Angular), ensuring usability and accessibility basics (HTML/CSS)
• Implement and maintain backend services and REST/GraphQL APIs (e.g., Node.js/Java), including input validation and error handling
• Work with databases (SQL/NoSQL): write queries, design/modify schemas, create migrations, and optimize basic performance
• Integrate with third-party services and internal systems (auth, payments, messaging, etc.) following established patterns
• Write and maintain unit, integration, and basic end-to-end tests; contribute to improving automated test coverage
• Participate in code reviews, address feedback, and follow team standards for clean, maintainable, well-documented code
• Troubleshoot and resolve issues across the stack (UI bugs, API failures, data inconsistencies); perform root-cause analysis
• Support CI/CD pipelines and deployments (branching, build failures, release checklists) with DevOps guidance
• Implement basic security best practices (authentication/authorization, secure API patterns, OWASP awareness, secrets handling)
• Monitor application health using logs/metrics and assist in incident triage and production support as needed
• Maintain technical documentation (feature notes, API specs, setup steps) and actively learn new tools and patterns
• 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
• 2+ years of software development experience  
• Experience building/consuming REST APIs (and understanding HTTP, JSON, status codes)
• Working knowledge of databases: SQL (preferred) and/or NoSQL; ability to write queries and understand schema design
• Familiarity with Git and collaborative workflows (branches, pull requests, code reviews)
• Proficiency in at least one backend language/framework (e.g, Nodejs/Express, Java/Spring)
• Proficiency with front-end fundamentals: HTML, CSS, JavaScript/TypeScript and a modern framework (React/Angular)
• Proven basic testing skills (unit/integration tests) and debugging/troubleshooting ability
• Proven solid problem-solving skills, ability to learn quickly, and clear written/verbal communication

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.