Senior Full Stack Java Developer

Experience Level: Senior

About the Role

The Child Support System Enhancement Effort aims to migrate critical functionality from a legacy mainframe system to a modern, web-based platform. This initiative will improve scalability, security, and user experience while ensuring compliance with state and federal regulations. The modernization effort involves re-engineering business processes, implementing new technologies, and integrating with existing systems in an Agile development environment.

Join our Child Support team to transform a legacy mainframe system into an enhanced, web-based platform that improves usability, accessibility, and scalability. This is a continuation of our enhancement effort, integrating with the existing web-based application in an Agile development environment.

We’re seeking a Senior Full Stack Java Developer who is a hands-on coder, passionate about building robust, scalable solutions and leveraging AI-powered tools to accelerate development and improve quality.

Key Responsibilities

• Hands-on development of backend services using Java (8+ or Higher), Spring Framework, Spring Boot, and Spring Data JPA/Hibernate or similar.
• Build responsive front-end interfaces using JavaScript, HTML5, CSS, and Bootstrap.
• Design and implement RESTful APIs and integrate external systems via SOAP/REST web services and messaging platforms.
• Conduct unit testing, automated testing, and support data migration to relational databases (DB2, PostgreSQL, Oracle or similar).
• Contribute to CI/CD pipeline development using Jenkins, GitHub Actions, and Maven/Gradle.
• Apply secure coding practices, performance tuning, and ensure compliance with standards.

Required Skills & Experience

Strong hands-on experience in Java full-stack development.

·Expertise in Spring Framework, Spring Boot, and RESTful API design.

·Front-end proficiency in JavaScript, HTML5,CSS, and Bootstrap.

·Solid experience with relational databases (DB2,PostgreSQL, Oracle or similar), writing SQL queries and stored procedures.

·Experience with testing frameworks (JUnit, Mockito, Selenium or similar).

·Knowledge of DevOps practices, including Git-based version control, CI/CD pipelines, and build tools(Maven/Gradle).

·Strong problem-solving, communication, and collaboration skills.

Preferred Qualifications

·Experience with legacy system enhancement and modernization.

·Experience with message queues (JMS, RabbitMQ, Kafka).

·Familiarity with data migration strategies and performance optimization.

·Exposure to cloud platforms (AWS, Azure, Google Cloud Platform)and containerization technologies (Docker, Kubernetes).

·Experience with agentic AI integration in the development life cycle—including:

oCode generation and intelligent refactoring

oCode transformation (COBOL-to-Java)

oAutomated testing and test script generation

oSecurity scanning and AI-assisted IDE support

·Experience in AI prompt engineering and writing AI specifications for automation workflows.