Java Developer

Quantum Technologies. LLC; Atlanta (GA); On-site; USD 100,000 - 140,000; Full time

Job summary

Quantum Technologies. LLC is seeking an experienced Java Developer to design, implement, and maintain scalable enterprise applications. The role focuses on Java/J2EE, Spring Boot, REST APIs, and database technologies, with collaboration across UI/UX, QA, and DevOps teams.

The ideal candidate will work on backend services, microservices architecture, and CI/CD pipelines, ensuring secure and reliable software delivery.

Qualifications

• Strong experience in Java programming, Spring Boot, and microservices.
• Experience with REST APIs and relational databases (Oracle, MySQL, PostgreSQL).
• Experience with unit testing (JUnit) and mocking (Mockito).
• Familiarity with CI/CD pipelines and deployment processes.
• Ability to design scalable, secure enterprise applications.

Responsibilities

• Design, develop, and maintain enterprise applications using Java and J2EE.
• Develop backend services using Spring Boot and Spring MVC.
• Build and maintain RESTful APIs and Microservices architecture.
• Implement OOP principles and design patterns.
• Develop database queries and data models for relational databases.
• Integrate third-party APIs and external systems.
• Perform unit and integration testing (JUnit, Mockito).
• Collaborate with UI/UX, QA, and DevOps teams.
• Work with CI/CD pipelines and deployments.
• Maintain performance, reliability, and security of apps.

Skills

Java

Spring Boot

Microservices

REST APIs

J2EE

OOP

Design patterns

SQL & databases

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Work Authorization:US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, OtherJob Summary:

We are looking for an experienced Java Developer responsible for designing, developing, implementing, and maintaining scalable enterprise applications. The ideal candidate should have strong experience in Java programming, Spring Boot, Microservices, REST APIs, and database technologies.

Key Responsibilities

• Design, develop, and maintain enterprise applications using Java and J2EE.
• Develop backend services and applications using Spring Boot and Spring MVC.
• Build and maintain RESTful APIs and Microservices architecture.
• Implement object-oriented programming (OOP) principles and design patterns.
• Develop database queries, stored procedures, and data models.
• Work with relational databases such as Oracle, MySQL, and PostgreSQL.
• Develop secure and scalable applications.
• Integrate third-party APIs and external systems.
• Perform unit testing and integration testing using JUnit and Mockito.
• Troubleshoot, debug, and resolve application issues.
• Participate in code reviews and technical discussions.
• Collaborate with UI/UX designers, QA engineers, and DevOps teams.
• Work with CI/CD pipelines and deployment processes.
• Maintain application performance, reliability, and security.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.