Senior Software Engineer II (Java, Microservices, React)

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, develop, test, and maintain full-stack applications using modern backend and frontend technologies, delivering reliable, high-performance solutions at enterprise scale
• Build and evolve RESTful APIs and backend services with a focus on security, scalability, and maintainability
• Develop modern, responsive, and accessible user interfaces using contemporary frontend frameworks
• Participate across the full software development lifecycle, including design, implementation, testing, CI/CD, deployment, and production support
• Act as a hands-on engineer, working independently on complex problems and leading by example through high engineering standards
• Troubleshoot complex technical issues, perform root-cause analysis, and implement durable solutions in both development and production environments
• Support application availability, reliability, and stability for business-critical systems, including participation in incident response and operational support
• Collaborate with product management, architecture, QA, and platform teams to translate business requirements and roadmaps into technical solutions
• Contribute to design documentation, technical specifications, and operational runbooks to support long-term maintainability
• Identify gaps, risks, and improvement opportunities within existing systems and propose practical, scalable enhancements
• Collaborate with the team to identify opportunities for AI/ML integration
• Adhere to Agile and Scaled Agile (SAFe) practices, engineering governance, and enterprise service management processes
• Comply with all applicable Company policies, procedures, and business directives, changes including those relating to work location, team assignments, work schedules, and flexible work arrangements

Required

Qualifications

• Bachelor of Science in computer science or related quantitative field
• 8+ years of experience with software engineering and software development life cycle
• 5+ years of experience designing, developing, and supporting Spring Boot-based APIs and backend services
• Hands-on experience in backend software engineering within large-scale enterprise environments
• Experience working in Agile software development environments, collaborating closely with product, engineering, and operations teams
• Experience working with relational databases, including MS SQL
• Experience supporting systems in regulated environments with a solid focus on reliability, security, and compliance, particularly within healthcare or pharmacy domains
• Working knowledge of CI/CD practices and tooling, including GitHub Actions, artifact management, secrets management, and automated quality controls
• Solid proficiency in Java, with demonstrated experience building secure, scalable, and maintainable applications

Preferred

Qualifications

• Experience with React to build modern, responsive, and accessible user interfaces
• Experience with one of the cloud platforms (Azure, AWS or GCP). Having Azure cloud experience
• Experience with Optum enterprise platforms and tooling, including Skyline
• Experience with Camunda or similar workflow and business process orchestration frameworks
• Experience supporting high-availability, customer-facing platforms in healthcare, pharmacy benefit management, or related regulated industries
• Familiarity with operational excellence practices, including observability, incident management, and production support for mission-critical systems

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.