Senior Java Microservices Engineer - REST & Cloud

Quantum Technologies. LLC; Jersey City (NJ); On-site; USD 89,000 - 126,000; Full time

Job summary

Quantum Technologies. LLC is seeking a senior Java Developer in Jersey City, NJ to design and implement scalable microservices, RESTful APIs, and robust data access layers.

You will work across cloud deployments, influence architecture decisions, and collaborate with cross-functional teams to deliver high-quality software. The role requires 8+ years of hands-on Java experience, strong Spring and Hibernate proficiency, and solid knowledge of messaging systems like Kafka or RabbitMQ.

Qualifications

• 8+ years of hands-on Java development experience.
• Strong proficiency in Core Java (8/11/17+).
• Extensive Spring Boot/MVC/Framework experience.
• Microservices architecture expertise.
• RESTful API and Web Services development.
• Hibernate/JPA knowledge.
• SQL and relational databases experience.
• Kafka or similar messaging systems experience.
• Maven/Gradle and Git knowledge.
• JUnit/Mockito for unit testing.
• Knowledge of multithreading, JVM, and design patterns.

Responsibilities

• Build scalable and secure microservices-based architectures.
• Develop and integrate RESTful APIs and web services.
• Work with databases such as Oracle, PostgreSQL, MySQL, or MongoDB.
• Implement messaging with Kafka or RabbitMQ.
• Write clean, reusable, and optimized code following industry best practices.
• Perform unit testing, debugging, code reviews, and application troubleshooting.
• Collaborate with architects, business analysts, QA, and DevOps teams.
• Participate in Agile/Scrum ceremonies and sprint planning.
• Deploy and support applications in cloud environments.

Skills

Java development

Microservices

RESTful APIs

Spring Framework

Hibernate/JPA

SQL

JUnit/Mockito

Git

Multithreading

Tools

Maven/Gradle

Git

Kafka

RabbitMQ

Job description

Quantum Technologies. LLC is seeking a senior Java Developer in Jersey City, NJ to design and implement scalable microservices, RESTful APIs, and robust data access layers.

You will work across cloud deployments, influence architecture decisions, and collaborate with cross-functional teams to deliver high-quality software. The role requires 8+ years of hands-on Java experience, strong Spring and Hibernate proficiency, and solid knowledge of messaging systems like Kafka or RabbitMQ.