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.
The Full Stack Engineer will be responsible for designing, developing, and maintaining enterprise-grade applications using modern technology stacks. This role requires hands-on expertise in both frontend and backend technologies, cloud platforms, and the ability to lead technical initiatives while mentoring junior team members. The ideal candidate will have a strong track record of delivering scalable, high-performance solutions in an agile environment.
Primary Responsibilities:
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Technical Leadership & Development
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Design and develop end-to-end solutions using Java/J2EE, Spring Boot, Spring MVC, and RESTful microservices architecture
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Build responsive and performant user interfaces using React.js, Redux, and modern JavaScript frameworks
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Lead the architectural design and implementation of cloud-native applications on AWS/Azure platforms
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Develop and maintain microservices-based applications with focus on scalability, resilience, and performance
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Implement and optimize RESTful APIs and Web Services following industry best practices
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Integrate AI/ML capabilities into applications (LLM APIs, ML model serving, AI-powered features)
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Design and implement intelligent features using AI/ML technologies and frameworks
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Write clean, maintainable, and well-documented code with comprehensive unit and integration testing
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DevOps & CI/CD
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Design and implement CI/CD pipelines using Jenkins for automated testing, building, deployment, and monitoring
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Configure and manage infrastructure as code using tools like Chef, Ansible, or Terraform
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Implement containerization strategies using Docker and orchestration with Kubernetes
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Ensure automated deployment processes and release management best practices
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Monitor application performance and implement proactive optimization strategies
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Product Delivery & Team Leadership
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Own end-to-end delivery of products and features from conception to production
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Lead agile ceremonies and drive sprint planning, execution, and retrospectives
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Mentor and guide junior developers on best practices, design patterns, and coding standards
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Collaborate with cross-functional teams including Product Managers, UX Designers, and QA Engineers
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Conduct code reviews and ensure adherence to engineering standards and practices
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Architecture & Design
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Apply design thinking principles to solve complex business problems with appropriate technology solutions
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Evaluate and recommend technology stacks considering cost efficiency, performance, resilience, and scalability
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Design database schemas and optimize queries using Hibernate, Spring Data JPA, and relational databases
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Architect solutions considering security, compliance, and healthcare domain requirements (HIPAA, PHI)
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Create technical documentation, architecture diagrams, and design specifications
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Quality & Testing
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Implement comprehensive testing strategies including unit tests, integration tests, and end-to-end testing
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Coordinate test data management and ensure quality assurance throughout the development lifecycle
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Debug complex production issues and implement permanent solutions
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Establish and maintain code quality standards using tools like SonarQube, ESLint, etc.
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Manages and is accountable for professional employees and/or supervisors
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Impact of work is most often at the local level
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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:
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Bachelor's degree in Computer Science, Engineering, or related technical field from a recognized university
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12+ years of overall IT experience in software development
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8+ years of hands-on experience in Java/J2EE technologies including:
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Spring Framework (Spring Boot, Spring MVC, Spring Security, Spring Data JPA)
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RESTful web services and microservices architecture
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Hibernate and ORM frameworks
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8+ years of experience with React.js/Redux and modern frontend development
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5+ years of experience with cloud platforms (AWS/Azure) including:
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Cloud-native application development
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Infrastructure management and deployment
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Cloud services integration (S3, Lambda, RDS, EC2, Azure App Services, etc.)
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5+ years of experience leading product delivery as a technical lead
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4+ years of experience with automated deployment and release management tools (Chef, Ansible, Jenkins, etc.)
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4+ years of experience managing development delivery in agile methodologies (Scrum, Kanban)
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4+ years of experience building and consuming Web Services, REST APIs, and microservices
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4+ years of experience with build tools (Maven, Gradle, npm, webpack)
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3+ years of experience providing technical solutions for new product capabilities
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Technical Skills:
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Backend: Java 11+, Spring Boot, Spring MVC, Spring Security, Hibernate, JPA, RESTful APIs
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Frontend: React.js, Redux, JavaScript (ES6+), HTML5, CSS3, TypeScript
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Cloud: AWS (EC2, S3, Lambda, RDS, CloudFormation) or Azure (App Services, Functions, Storage, SQL Database)
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CI/CD: Jenkins, GitLab CI/CD, Azure DevOps, GitHub Actions
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Containerization: Docker, Kubernetes, container orchestration
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Configuration Management: Chef, Ansible, Terraform
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Build Tools: Maven, Gradle, npm, webpack
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Databases: PostgreSQL, MySQL, Oracle, MongoDB
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Version Control: Git, GitHub
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Testing: JUnit, Mockito, Jest, React Testing Library, Selenium
Preferred Qualifications:
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Domain Experience
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Experience in Healthcare domain (HCC, Health Care Cloud, HIPAA compliance)
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Experience with healthcare portals and patient engagement platforms
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Knowledge of healthcare data standards (HL7, FHIR)
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Additional Technical Skills
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Experience with GraphQL APIs
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Experience with AI/ML technologies and frameworks (TensorFlow, PyTorch, scikit-learn)
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Experience integrating AI services (OpenAI, Azure AI, AWS Bedrock, Anthropic Claude)
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Experience with vector databases (Pinecone, Weaviate, ChromaDB) for AI applications
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Experience with event-driven architectures (Kafka, RabbitMQ)
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Experience with monitoring and observability tools (Splunk, ELK Stack, Prometheus, Grafana)
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Knowledge of NoSQL databases (MongoDB, Cassandra, DynamoDB)
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Knowledge of LLM integration, prompt engineering, and RAG (Retrieval-Augmented Generation) patterns
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Knowledge of security best practices and OWASP guidelines
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Familiarity with serverless architectures
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.
