> Markdown version of [/jobs/ext/4269740-senior-java-developer](https://www.wearedevelopers.com/jobs/ext/4269740-senior-java-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Java Developer - **Company:** Matlen Silver - **Location:** Newark, DE, United States - **Experience:** Expert - **Salary:** $128,960.0 - $135,200.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Agile Methodology, Amazon Web Services, Application Performance Management, Automation of Tests, Microsoft Azure, Code Review, Concurrent Computing, Continuous Integration, Software Debugging, Software Design Patterns, Java Platform Enterprise Edition (J2EE), Gradle, Hibernate (Java), Spring Framework, Apache Maven, Enterprise Messaging Systems, Object-Oriented Software Development, RabbitMQ, Software Engineering, SQL Databases, Multithreading, Enterprise Software Applications, Concurrency, Spring-boot, Backend, Git, Containerization, Kubernetes, Apache Kafka, Restful APIs, Docker, Microservices - **Published:** October 18, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=448d2a46bb400d4c ## About the Role * Backend Java Developer * Microservices Developer * Software Engineer - Java Project DetailsSeeking an experienced Java Developer to design, develop, and maintain enterprise-level applications using Java/J2EE, microservices architecture, and multithreading. The ideal candidate will have strong backend development experience and the ability to build scalable, high-performance applications. Must-Haves * 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 application performance optimization., * Experience with Spring Boot and Spring Framework. * RESTful API development and integration. * Experience with SQL databases and ORM frameworks such as Hibernate. * Familiarity with messaging technologies such as Kafka or RabbitMQ. * Experience with Git, Maven/Gradle, CI/CD pipelines, and automated testing. * Exposure to cloud platforms and containerization technologies such as AWS, Azure, Docker, or Kubernetes. ## Description * 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.