Senior Java Developer

About the Role

We're seeking an experienced Senior Java Developer to modernize our legacy voice application platform. This role focuses on upgrading our Java 8 codebase to Java 17/21, refactoring legacy UI components, and eliminating outdated dependencies—all while maintaining system stability.

Responsibilities

• Upgrade Java 8 applications to Java 17/21 and modernize the tech stack
• Work with legacy Java UI technologies (JSP, JSF, Servlets, Spring MVC, or similar)
• Refactor and maintain voice applications using CCXML and VoiceXML
• Manage data migration and work with H2 database
• Remove and replace outdated third-party libraries
• Ensure observability through logging, metrics, and monitoring

Qualifications

• 10+ years Java development experience with legacy application modernization
• Proven experience migrating Java 8 Java 17/21 codebases
• Strong knowledge of legacy Java UI frameworks (JSP, JSF, Servlets, Struts, Spring MVC)
• Experience with H2 database and data migration
• Comfortable working with legacy code and technical debt
• Fluent English communication

Required Skills

• 10+ years Java development experience with legacy application modernization
• Proven experience migrating Java 8 Java 17/21 codebases
• Strong knowledge of legacy Java UI frameworks (JSP, JSF, Servlets, Struts, Spring MVC)
• Experience with H2 database and data migration
• Comfortable working with legacy code and technical debt
• Fluent English communication

Preferred Skills

• CCXML/VoiceXML experience
• SIP protocol knowledge
• Experience with Tabnine or similar coding co-pilots
• Distributed team collaboration across time zones

We are committed to diversity and inclusivity in our hiring practices.