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Apollo ITS

Senior Java and Database Developer

Apollo ITS, Atlanta, GA, United States

Title: Senior Java and Database Developer
Location: Atlanta, GA (Hybrid)
Duration: 12+ Months
Type: Contract

Job Description:
  • The suitable candidate will be a Java Developer with strong database knowledge.
  • This role will be responsible for developing and maintaining high-quality software applications, ensuring seamless integration with various database systems. Java 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 OAuth 2.0 and JWT tokens. Leverage SAML/SSO integration for single sign-on and authentication.
  • Proficiency in Postgres, PL/SQL and Oracle database technologies.
  • Formulating data dictionaries that are congruent with task specifications.
  • Creating technical documents that outline the purpose, capacity, and guidelines attached to each database.
  • Providing practical guidance on the use and migration of each database.
  • Servicing and updating databases, as required.
  • Database Responsibilities Development: Design and implement PL/SQL functions, procedures, and packages to meet business requirements.
  • Triggers: Create and manage database triggers for automation of tasks and enforcement of business rules.
  • Performance Tuning: Optimize SQL queries and PL/SQL code for performance and scalability. Database Design: Collaborate with the data modeling team to create 10/24/24, 10:24 AM State of Georgia
  • Database Design: Collaborate with the data modeling team to create efficient database designs. Testing: Conduct unit and integration testing of PL/SQL code to ensure reliability and accuracy. Documentation: Maintain documentation for developed code, processes, and database schemas. Collaboration: Work closely with application developers, business analysts, and other stakeholders to gather requirements and provide technical support.
  • Troubleshooting: Diagnose and resolve database issues, including performance bottlenecks and data integrity problems.

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
  • Frontend Integration: Understanding of HTML, CSS, JavaScript, and Angular 17+
  • Security & Identity Management: Experience with OAuth 2.0, JWT tokens, and SAML/SSO integration for authentication and authorization
  • KeyCloak Integration: Integrate KeyCloak with Java-based applications and services for API authentication
  • Scripting Languages: Proficiency in one or more scripting languages, such as Bash, or PowerShell, Python
  • Experience with cloud-based databases (e.g., AWS RDS).
  • \Proficiency in SQL and experience with relational databases (e.g., MySQL, PostgreSQL, Oracle). Knowledge of NoSQL databases (e.g., MongoDB, Cassandra) is a plus.
Familiarity with agile methodologies