Senior Software Engineer I

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.

We are seeking a highly skilled and motivated Senior Full Stack Developer with deep expertise in both front-end and back-end technologies. You will play a pivotal role in designing, developing, and maintaining scalable web applications using React JS and Java/Spring Boot within a monorepo structure. This is a hands-on technical role requiring solid problem-solving abilities, a passion for clean code, and a sense of ownership over what you build.

Primary Responsibilities:

• Develop and maintain Java or Spring Boot applications in a monorepo setup
• Manage dependencies using Maven with consistent parent POM configurations
• Collaborate with cross-functional teams including QA and DevOps to ensure high-quality releases
• Troubleshoot and resolve application, build, and deployment issues
• Write clean, testable, and well-documented code adhering to project standards
• Participate in code reviews and contribute to continuous improvement
• Optimize and secure SQL queries and database integrations
• Support CI/CD pipelines and automated testing processes
• 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:

• Front-End
  • 6+ years of hands-on web development experience
  • 5+ years of React JS with deep understanding of internals and reusable libraries
  • Experience with testing, deploying, and optimizing web applications
  • Experience building and integrating RESTful APIs
  • Expert in JavaScript (ES6+), TypeScript, HTML5, CSS3
  • Expertise in state management patterns and web application routing
  • Solid understanding of web application security best practices
  • Proficient with distributed version control systems (e.g., Git)
• Back-End
  • Solid experience with Java and Spring Boot frameworks
  • Experience with Spring Security for authN or authZ implementations
  • Experience with Maven (multi-module, parent or child POM)
  • Experience with CI/CD tools and automated testing frameworks
  • Expertise in Spring JPA, Hibernate, and MyBatis
  • Solid understanding of Separation of Concerns and Single Responsibility Principle
  • Familiarity with monorepo best practices and dependency management
  • Proficient in custom Java annotations and Java.lang.reflect
  • Proficiency in SQL and OLAP or OLTP database integration
  • Proven comfortable using IntelliJ IDEA or similar IDEs

Preferred Qualifications:

• Experience profiling and tuning performance of web applications
• Broad understanding of cloud platforms (Azure preferred; AWS or GCP also valued)
• Familiarity with DevOps practices and cloud-native development
• Solid knowledge of application security best practices
• Demonstrated ability to create reusable libraries and scalable architecture

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.