Senior Java Full Stack Developer

Job DescriptionJob Description Title: Senior Java Full Stack Developer Location: Jacksonville, FL - Onsite Duration: 6-12 months contract Rate $58/hr on c2c with VMS charges Job Description:- Job Description (JD) Senior Java Full Stack Developer Position: Senior Java Full Stack Developer Experience: 8 Years Location: Onsite(Jacksonville) Job Summary We are seeking an experienced Senior Java Full Stack Developer with 8 years of expertise in designing, developing, and implementing enterprise-scale web applications. The ideal candidate should possess strong backend development experience using Java, Spring Boot, Microservices, and frontend expertise with React.js. Experience with cloud platforms, REST APIs, database design, and Agile methodologies is highly preferred. Key Responsibilities Design, develop, and maintain scalable enterprise applications using Java/J2EE, Spring Boot, Spring MVC, Hibernate, and Microservices. Develop and consume RESTful and SOAP web services. Build responsive and interactive user interfaces using React.js, JavaScript, HTML5, CSS3, Redux, and TypeScript. Develop secure APIs with JWT, OAuth2, Spring Security, and role-based access control. Implement microservices architecture and support service discovery, API gateways, and distributed systems. Design and Eligible to workimize database solutions using Oracle, DB2, MongoDB, and SQL. Write efficient SQL queries, stored procedures, functions, and triggers. Develop scalable backend components leveraging Java Collections, Multithreading, Streams API, and Design Patterns. Integrate messaging and event-driven systems using Kafka and asynchronous processing frameworks. Deploy and manage applications on AWS Cloud using services such as EC2, S3, VPC, IAM, Route 53, ELB, and Auto Scaling. Implement CI/CD pipelines using Jenkins, Maven, Gradle, Docker, and Git. Perform unit, integration, and automated testing using JUnit, Mockito, Jest, React Testing Library, and Cypress. Collaborate with cross-functional teams in an Agile/Scrum environment. Required Skills Backend Technologies Java 8/11 J2EE, Servlets, JSP Spring Framework, Spring Boot, Spring MVC Spring Data JPA, Hibernate REST APIs, SOAP Web Services Microservices Architecture Frontend Technologies React.js JavaScript (ES6 ) HTML5, CSS3 Redux, React Router AJAX, JSON Database Technologies Oracle MongoDB DB2 SQL, PL/SQL Database Modeling and Eligible to workimization Cloud & DevOps AWS (EC2, S3, IAM, VPC, Route 53, ELB, Auto Scaling) Docker Jenkins Terraform GitHub/GitLab Testing & Tools JUnit Mockito Jest Cypress Maven Gradle IntelliJ IDEA Eclipse Preferred Qualifications Experience with Kafka, Redis, Splunk, Prometheus, Grafana, and ELK Stack. Knowledge of event-driven architecture and distributed systems. Experience with large-scale enterprise applications in healthcare, retail, or e-commerce domains. Strong analytical and problem-solving skills. Excellent communication and teamwork abilities. Nice to Have: Experience with Healthcare (Medicaid, Medicare, SNAP), or large enterprise transformation projects. AWS certification or cloud-native development experience. Role Descriptions: Design| develop and enhance Healthcare Payer Enrollment and Billing applications| including backend services| APIs| business components and integrations. Develop scalable Java/Spring Boot microservices supporting enrollment| billing and related healthcare business processes. Translate business requirements into reliable technical solutions and participate across design| coding| testing| deployment and production support. Develop and Eligible to workimize database components| APIs| event-driven integrations and batch-processing capabilities. Troubleshoot application and production issues| perform root-cause analysis and implement sustainable fixes. Ensure code quality through unit/integration testing| code reviews| security standards and CI/CD practices. Collaborate closely with business| architecture| QA| DevOps and onshore/offshore development teams.Managerial / Collaboration Skills Strong customer and stakeholder communication skills. Ability to work Consultantly and provide technical guidance to development team members. Experience working within Agile/Scrum delivery models| including sprint planning| refinement| reviews and retrospectives. Ability to coordinate effectively across business| technical and onshore/offshore teams. Essential Skills: 8 years of hands-on Java/J2EE development experience| with strong expertise in Java 8/11 | Spring Boot| Spring Framework and Microservices. Mandatory hands-on development experience in Healthcare Payer Enrollment and Billing applications/processes. Strong experience developing RESTful APIs| backend services and enterprise integrations. Experience with Spring Data JPA| Hibernate| SQL and relational databases| preferably DB2/PostgreSQL. Hands-on experience with Kafka or enterprise messaging technologies. Experience with CI/CD| Git| Jenkins/Azure DevOps| Maven/Gradle and automated testing using JUnit/Mockito. Good understanding of application security including OAuth2| JWT and Spring Security.