Senior Java Backend Engineer - Microservices & Concurrency

The Matlen Silver Group, Inc.; Newark (DE); On-site; USD 120,000 - 160,000; Full time

Job summary

The Matlen Silver Group, Inc. in Newark, DE seeks an experienced Java/J2EE Developer to design, develop, and maintain enterprise-grade applications using Java, J2EE, and microservices.

Ideal candidates bring 7+ years of backend development, strong multithreading skills, and proficiency with Spring Boot, REST, ORM (Hibernate), and CI/CD pipelines in a modern cloud/container environment.

Qualifications

• 7+ years of professional software development experience.
• Strong hands-on experience with Java and J2EE.
• Experience designing and developing microservices-based applications.
• Strong understanding of multithreading and concurrency in Java.
• Experience developing, debugging, and maintaining enterprise-level backend applications.
• Strong knowledge of object-oriented programming, design patterns, and performance optimization.

Responsibilities

• Design, develop, test, and maintain Java/J2EE applications.
• Build and enhance scalable microservices-based solutions.
• Implement multithreaded applications to support performance and concurrent processing.
• Troubleshoot application issues and optimize performance and reliability.
• Collaborate with developers, architects, QA, and business stakeholders.
• Participate in code reviews, technical design discussions, and Agile development activities.

Skills

Java

J2EE

Multithreading

Concurrency

Object-oriented programming

Design patterns

Backend development

Enterprise applications

Tools

Spring Boot

Spring Framework

RESTful API

SQL/ORM (Hibernate)

Kafka

RabbitMQ

Git

Maven/Gradle

CI/CD

Docker

Kubernetes

AWS/Azure

Job description

The Matlen Silver Group, Inc. in Newark, DE seeks an experienced Java/J2EE Developer to design, develop, and maintain enterprise-grade applications using Java, J2EE, and microservices.

Ideal candidates bring 7+ years of backend development, strong multithreading skills, and proficiency with Spring Boot, REST, ORM (Hibernate), and CI/CD pipelines in a modern cloud/container environment.