Full Stack Engineer - Java, Angular, Mongo DB

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.

About the Role:

We are looking for a highly skilled Full Stack Engineer with 3-5 years of experience in building scalable web applications using Java, Spring Boot, and Angular, along with familiarity in integrating AI‑assisted development practices and tools into engineering workflows. The ideal candidate will have solid back-end and front-end engineering skills, hands‑on experience with AWS, experience with Playwright is a plus and a solid understanding of modern application architecture. You will work across the full development lifecycle contribute to high‑quality code, and help drive continuous improvement in performance, reliability, security, and automation while integrating AI‑assisted development practices to drive improvements in performance, reliability, security, and developer efficiency.

Primary Responsibilities:

• Design, develop, and maintain end‑to‑end web applications using Java, Spring Boot, and Angular, including building scalable RESTful APIs and microservices
• Participate in the full Software Development Lifecycle (SDLC) - design, development, testing, deployment, monitoring-and collaborate with engineers, product teams, and stakeholders to ensure clarity and alignment
• Diagnose and resolve technical issues through effective debugging and continuously identify opportunities to improve application performance, scalability, and reliability
• Ensure high‑quality, maintainable code through unit testing, adherence to coding standards, and CI/CD best practices
• Design, develop, and deploy AI-powered solutions to address complex business challenges with emphasis on responsible use of AI
• Leverage enterprise-approved AI tools to streamline workflows, automate tasks, and drive continuous improvement
• Evaluate emerging trends to inform solution design and strategic innovation
• Conduct AI-driven code reviews to identify defects faster and improve code quality and development efficiency
• Comply with all company policies, procedures, and directives, including potential role, team, or shift adjustments based on business requirements
• 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

Join the Enterprise Technology Infrastructure Platform Services ( ETIPS ) team, driving innovation and reliability across core systems.

Required Qualifications:

• 3+ years of hands‑on experience as a Full Stack Developer with Java, Spring Boot, and Angular
• Solid experience building frontend applications using Angular (v8+), TypeScript, and common frontend build tools
• Practical experience deploying and operating applications on AWS
• Demonstrated experience in identifying and remediating security vulnerabilities, ensuring secure software development practices
• Hands‑on experience using AI tools to support development activities such as code generation, automated documentation, refactoring, debugging, or workflow automation
• Solid understanding of MongoDB and document‑oriented database design
• Solid knowledge of data structures, design patterns, and microservices architecture
• Proficiency with Git, branching strategies, and modern CI/CD pipelines like Github Actions

Preferred Qualifications:

• Practical experience with Playwright or similar modern automation testing frameworks
• Experience working in Agile/Scrum development environments
• Experience with Terraform, Docker, or other container‑based deployment technologies
• Experience integrating AI-powered features or services into application components or internal engineering frameworks
• Exposure to security best practices for cloud‑native applications
• Familiarity with emerging AI/ML tools for developer productivity (e.g, AI agents, intelligent test generation, AI-driven static analysis)
• Demonstrated ability to drive improvements in code quality, automation, and testing coverage

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.