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# Senior Java Backend / Microservices Engineer

- **Company:** Diverse Lynx LLC
- **Location:** Jacksonville, FL, United States
- **Experience:** Expert
- **Salary:** $124,800.0 - $135,200.0
- **Contract:** Temporary contract
- **Skills:** Java (Programming Language), Spring Security, Application Programming Interfaces (APIs), Automation of Tests, Microsoft Azure, Software Quality, Code Review, Databases, Continuous Integration, IBM DB2, Relational Databases, DevOps, Gradle, Hibernate (Java), Java Persistence API, Spring Framework, Junit, PostgreSQL, Apache Maven, Enterprise Messaging Systems, OAuth, Mockito, JSON Web Token, Software Engineering, SQL Databases, Systems Integration, Spring-boot, Software Security, Backend, Git, Integration Tests, Apache Kafka, Restful APIs, Jenkins, Microservices
- **Published:** October 16, 2026
- **Apply:** https://www.careerjet.com/job/us32a8befa9453201f195082b8abf79ad5/eaa

## About the Role

Seeking a Senior Java Backend / Microservices Engineer with strong hands-on development experience in Healthcare Payer Enrollment and Billing applications. The role will be responsible for designing, developing, enhancing, and supporting enterprise healthcare applications using Java, Spring Boot, microservices, APIs, messaging, and relational databases.
Healthcare Requirement: Prior hands-on Healthcare Payer Enrollment and Billing application development experience is mandatory.
Mandatory Technical & Domain 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.

## Description

* 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.