GA DHS - Senior Java and Database Developer
GA DHS - Senior Java and Database Developer
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Job Description
The suitable candidate will be a Java Developer with strongdatabase knowledge. This role will be responsible for developing andmaintaining highquality software applications ensuring seamless integrationwith various database systems.
Java Responsibilities
Develop and maintain Javabased applications using core Java andadvanced Java (Java 17).
Design and implement microservices using Spring Boot andother relevant frameworks.
Buildand consume RESTful APIs and web services.
Integrate with databases ensuring performance optimization(e.g. SQL databases like PostgreSQL Oracle).
Writeunit and integration tests using JUnit TestNG Mockito or othertesting frameworks.
DevelopSQL queries and analyze data to support application development andproduction issues.
Implementobjectoriented design principles and patterns for scalable andmaintainable codebases.
Ensureadherence to clean code principles and write reusable modular code.
Troubleshoot and debug Java applications ensuring optimalperformance and security.
Participatein code reviews and provide constructive feedback to peers.
FollowAgile methodologies (Scrum) and participate in sprints daily standups.
Useversion control systems like GitHub for source code management.
Implementand manage CI/CD pipelines using GitHub Actions.
Collaboratewith DevOps teams for cloud deployment and infrastructure management(AWS).
Designconfigure and implement Spring Batch jobs for processing large datasetsand scheduling tasks.
Implementdynamic web pages and views using JSP (Java Server Pages).
Designand implement authentication and authorization mechanisms using Key Cloakfor identity and access management ensuring secure communication through OAuth2.0 and JWT tokens.
LeverageSAML/SSO integration for single signon 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 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.
Previousexperience using
Java(Java 17) features such as records sealed classes switch expressionspattern matching and enhanced performance improvements
Node 16
ServiceNow Splunk Dynatrace
Spring Framework (Spring Boot Spring MVC Spring Data SpringSecurity Spring Batch)
Microservices Architecture (Designingdeveloping and deploying microservices)
Java Server Pages (creating dynamic web pages and integratingwith backend logic)
Database Management (PostgreSQL Oracle and experience with ORMtools like Hibernate)
RESTful Web Services (API development consumption and integration)
Thoroughunderstanding of REST SOAP Web services and API Communicationprotocols 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 andAngular 17
Security & Identity Management: Experience with OAuth2.0 JWT tokens and SAML/SSO integration for authenticationand authorization
KeyCloak Integration: Integrate KeyCloak with Javabasedapplications and services for API authentication
Scripting Languages: Proficiency in one or more scripting languagessuch as Bash or PowerShell Python
Experience with cloudbased databases (e.g. AWSRDS).
Proficiencyin SQL and experience with relational databases (e.g. MySQL PostgreSQLOracle).
Knowledgeof NoSQL databases (e.g. MongoDB Cassandra) is a plus.
Familiaritywith agile methodologies.
Required/Desired Skills
Questions
Employment Type
Full Time
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