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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 Senior Java Developer with 6-9 years of hands‑on experience in designing, developing, and deploying enterprise-grade applications. The ideal candidate should demonstrate solid expertise in Core Java, Spring ecosystem, microservices, DevOps tooling, and modern engineering practices. In addition to technical depth, the role requires the ability to mentor junior engineers, conduct technical interviews, provide architectural guidance, and uphold engineering excellence across the team.

Primary Responsibilities:

• Technical Leadership & Delivery

• Design, develop, and enhance scalable Java-based applications using Java 8+, Spring, Spring Boot, Hibernate/JPA, REST/SOAP APIs

• Work on hands‑on coding assignments including string manipulations, collections, Java programs, design problems, and troubleshooting

• Contribute to system design involving design patterns (circuit breaker, microservices), SOLID principles, and class modelling

• Optimize performance, troubleshoot OOM issues, and enhance system scalability and resilience

• Automation, DevOps & Cloud-readiness

• Implement CI/CD pipelines using GitHub Actions, Jenkins (Intermediate), and containerization using Docker, Kubernetes including scaling fundamentals and debugging

• Work with messaging queues, API gateways, and integration patterns

• Database & Integration

• Work extensively with Oracle DB, JPA/Hibernate ORM, and SQL optimization

• Develop and maintain REST/SOAP based microservices integrations

• Security & Best Practices

• Implement and review security frameworks - Spring Security, OAuth2, JWT-based authentication

• Ensure engineering quality through clean code, code reviews, and enforcement of development standards

• Technical Mentoring & Interviewing

• Mentor junior and mid-level developers on Java, design, and debugging

• Conduct L1/L2 technical interviews, hands-on coding assessments, design evaluations, and cross-questioning sessions

• Guide team members in problem solving, code structure, and modern engineering practices

• 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 regard 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:

• Education & Experience

• Bachelor's or Master's in Computer Science or related field

• 6+ years of professional experience in Java backend engineering

• Demonstrated experience mentoring and technically guiding engineers

• Java 8+, Core Spring, Spring Boot, Spring AOP

• REST API development, Oracle DB, JPA/Hibernate ORM

• Messaging Queues, GitHub Actions, Jenkins

• Docker, Kubernetes, API Gateways, Microservices Architecture

• Functional Programming (Lambdas, Streams, Optionals)

Preferred Qualifications :

• SOAP API, Spring Security

• Experience with design whiteboarding/problem modelling

• Performance management & NFRs

Soft Skills & Behavioral Expectations:

• Solid communication skills with ability to articulate technical concepts

• Proven ability to mentor, guide, and uplift engineering talent

• Proactive ownership, problem solving, and collaboration across cross-functional teams

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.