Lead Full Stack Engineer - Java, React

Requisition Number: 2394476
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.
A highly experienced Full Stack Engineer with 10+ years of expertise in Java/J2EE, Spring Boot, Kafka, and Cloud Platforms (GCP/Azure), responsible for designing, developing, and supporting scalable, high-performance enterprise applications.
Primary Responsibilities:

• Design, develop, and maintain enterprise-grade applications using Java/J2EE, Spring Boot, and microservices architecture
• Build and optimize event-driven and real-time data processing solutions using Apache Kafka, ensuring scalability, reliability, and fault tolerance
• Lead architecture discussions and contribute to technical design, solutioning, and technology roadmaps
• Develop secure, reusable, and high-quality code following industry best practices, coding standards, and design patterns
• Implement and manage cloud-native solutions on Google Cloud Platform (GCP) and/or Microsoft Azure, leveraging services for compute, storage, networking, and monitoring
• Collaborate with product owners, business stakeholders, architects, and cross-functional teams to translate business requirements into technical solutions
• Drive application modernization initiatives, including migration from monolithic systems to microservices and cloud platforms
• Ensure application reliability through performance tuning, monitoring, troubleshooting, and production support activities
• Implement CI/CD pipelines, infrastructure automation, and DevOps best practices to accelerate software delivery
• Mentor junior engineers, conduct code reviews, and promote engineering excellence across development teams
• Ensure adherence to security, compliance, and operational standards while delivering resilient and scalable solutions
• Participate in Agile/Scrum ceremonies and contribute to planning, estimation, and successful project execution
• 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

Qualifications - External
Required Qualifications:

• Bachelor's or Master's degree in Computer Science, Information Technology, Engineering, or a related field
• 10+ years of hands-on experience in software design, development, and support of enterprise applications
• Hands-on experience with cloud platforms such as Google Cloud Platform (GCP) and/or Microsoft Azure, including deployment, monitoring, and cloud-native services
• Hands-on experience with CI/CD tools and DevOps practices using Jenkins, GitHub Actions, GitLab CI, Azure DevOps, or similar platforms
• Experience with containerization and orchestration technologies such as Docker and Kubernetes
• Experience in Agile/Scrum development methodologies and working within cross-functional teams
• Extensive experience developing microservices-based applications using Spring Boot, Spring MVC, Spring Security, and RESTful APIs
• Proven experience implementing event-driven architectures using Apache Kafka, including producers, consumers, Kafka Streams, topic management, and performance tuning
• Solid expertise in Java/J2EE, including Core Java, Multithreading, Collections, JVM tuning, and design patterns
• Solid knowledge of relational and NoSQL databases such as Oracle, SQL Server, PostgreSQL, MongoDB, or BigQuery
• Solid understanding of distributed systems, scalability, resilience, security, and performance optimization
• Proven excellent analytical, problem-solving, and troubleshooting skills
• Demonstrated solid verbal and written communication skills with the ability to interact with technical and business stakeholders
• Skills & Competencies:
  • Hands-on experience with GCP and/or Azure cloud services
  • Experience with CI/CD, containerization (Docker/Kubernetes), and DevOps practices
  • Solid expertise in Java/J2EE, Spring Boot, REST APIs, Microservices, and Kafka
  • Solid understanding of distributed systems, cloud architecture, and event-driven design
  • Proven excellent problem-solving, leadership, stakeholder management, and communication skills
• Leadership Expectations:
  • Experience mentoring engineers, conducting code reviews, and driving engineering best practices
  • Proven ability to lead technical discussions, architecture reviews, and design decisions
  • Proven ability to manage multiple priorities while delivering high-quality, scalable, and reliable solutions
  • Demonstrated solid collaboration and stakeholder management skills in a fast-paced enterprise environment

Preferred Qualifications:

• Relevant cloud certifications such as Google Professional Cloud Architect, Google Professional Cloud Developer, Microsoft Azure Developer Associate, or Azure Solutions Architect Expert
• Experience with Infrastructure as Code (Terraform, Cloud Deployment Manager, ARM Templates, or Bicep)
• Experience in cloud migration, modernization, and application transformation initiatives
• Experience with API gateways, service mesh technologies, and event streaming platforms
• Knowledge of observability and monitoring tools such as Splunk, Dynatrace, Grafana, Prometheus, or Cloud Monitoring
• Exposure to AI/ML-enabled products, data engineering pipelines, or large-scale analytics platforms

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.