Senior Java Developer

Senior Java Developer – Legacy Application Support & Enhancement

Location: Onsite; Glen Allen, VA

Terms: 12-month contract with probable extensions

Please, no unsolicited communication from third party vendors or candidates.

Capstone IT Staffing is seeking a Senior Java Developer to join our client’s team. This role will be primarily focused on production support and feature enhancement of a critical legacy enterprise application. This role offers the opportunity to stabilize, extend, and maintain a system that is essential to their business operations.

This role is ideal for developers who thrive in high-impact environments and enjoy working on systems where stability, maintainability, and scalability are critical. You’ll gain deep domain experience while also having the chance to contribute to forward-looking architectural transformations and microservice development.

Key Responsibilities

• Provide production support for a mission-critical legacy enterprise Java application.
• Troubleshoot, debug, and resolve system issues in a timely and structured manner.
• Design, develop, and deploy new features and enhancements to improve application functionality.
• Collaborate with business analysts, QA, and operations teams to deliver reliable and maintainable software.
• Participate in an on-call rotation (currently once every 12 weeks), with full training provided before assignment.
• Adhere to organizational security protocols, including privileged access via CyberArk.
• Gradually contribute to the modernization of the system, including microservices and containerization initiatives.

Core Technical Skills – Required

• Java (10 years) – strong hands-on expertise in enterprise-level development.
• Spring Boot / Spring Framework – including Spring Data and Spring Cloud.
• Hibernate / JPA2 – with experience in HQL, JPQL, Hibernate Criteria, and JPA Criteria APIs.
• Web Services (SOAP & REST APIs) – design, development, and integration.
• Junit, Mockito, and using test-driven approaches.
• Azure DevOps – pipelines, deployments, and repository management.
• Version Control – Git experience is essential.
• Application servers like WebLogic 14 .
• Build tools such as Gradle, Ant, and experience with IDEs like IntelliJ or Eclipse.
• Databases: Oracle 19c, SQL Server, MongoDB; message streaming using Kafka.

Preferred Qualifications

• Exposure to microservices architecture, containerization, and domain-driven design concepts.
• Experience using UI component libraries (for full-stack visibility).
• Agile software development lifecycle experience.

Capstone Consulting is an EEO employer.

Capstone website: http://www.capstonec.com/

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