GA DHS - Senior Software Developer

Job Responsibilities
• Develop and maintain Java-based applications using core Java and advanced Java (Java 17).
• Design and implement microservices using Spring Boot and other relevant frameworks.
• Build and consume RESTful APIs and web services.
• Integrate with databases, ensuring performance optimization (e.g., SQL databases like PostgreSQL, Oracle).
• Write unit and integration tests using JUnit, TestNG, Mockito, or other testing frameworks.
• Develop SQL queries and analyze data to support application development and production issues.
• Implement object-oriented design principles and patterns for scalable and maintainable codebases.
• Ensure adherence to clean code principles and write reusable, modular code.
• Troubleshoot and debug Java applications, ensuring optimal performance and security.
• Participate in code reviews and provide constructive feedback to peers.
• Follow Agile methodologies (Scrum) and participate in sprints, daily stand-ups.
• Use version control systems like GitHub for source code management.
• Implement and manage CI/CD pipelines using GitHub Actions.
• Collaborate with DevOps teams for cloud deployment and infrastructure management (AWS).
• Design, configure, and implement Spring Batch jobs for processing large datasets and scheduling tasks.
• Implement dynamic web pages and views using JSP (Java Server Pages).
• Design and implement authentication and authorization mechanisms using Key Cloak for identity and access management, ensuring secure communication through OAuth2.0 and JWT tokens.
• Leverage SAML/SSO integration for single sign-on and authentication.

Experience and Technical Skills Required
• Seven (7) years of experience in Java and modern technologies.
• Previous experience using
-Java (Java 17+) features such as records, sealed classes, switch expressions, pattern matching, and enhanced performance improvements
-Node 16+
-ServiceNow, Splunk, Dynatrace
-Spring Framework (Spring Boot, Spring MVC, Spring Data, Spring Security, Spring Batch)
-Microservices Architecture (Designing, developing, and deploying microservices)
-Java Server Pages (creating dynamic web pages and integrating with back-end logic)
-Database Management (PostgreSQL, Oracle and experience with ORM tools like Hibernate)
-RESTful Web Services (API development, consumption, and integration)
-Thorough understanding of REST, SOAP, Web services and API Communication protocols S/FTP/S, HTTP/S, File I/O etc.
-Testing: JUnit, TestNG, Mockito
-Version Control: GitHub
-Build Tools: Maven, NPM
-CI/CD: GitHub Actions
-Cloud Platforms: Amazon Web Services
-Frontend Integration: Understanding of HTML, CSS, JavaScript, and Angular 17+
-IDE: IntelliJ, Eclipse etc.
-Security & Identity Management: Experience with OAuth2.0, JWT tokens, and SAML/SSO integration for authentication and authorization
-Key Cloak Integration: Integrate Key Cloak with Java-based applications and services for API authentication
-Scripting Languages: Proficiency in one or more scripting languages, such as Bash, or PowerShell, Python

Teradata Retail Data Model (RDM): RDM systems
experience is a plus