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Senior Java Developer (Java 21 Modernization)

  • Source: LinkedIn
  • Arkhya Tech. Inc.
  • Remote
  • Mutual
  • Senior

Job Description

Job Summary

We are seeking an experienced Senior Java Modernization Engineer to lead the modernization and upgrade of legacy J2EE applications to Java 21 . The ideal candidate will have strong expertise in Java, Spring, AWS, application modernization, and hands-on experience using OpenRewrite for automated code refactoring and migrations.

Mandatory Skills

  • Strong experience in Java/J2EE development
  • Expertise in Spring Framework / Spring Boot
  • Experience with Apache Struts
  • Strong knowledge of Maven
  • Experience with IBM WebSphere Application Server or Open Liberty/WebSphere Liberty
  • Hands-on experience with Docker
  • Experience using OpenRewrite for Java application modernization
  • Strong database experience with Oracle Database
  • Experience working with AWS Cloud Services
  • Hands-on experience with Claude Code/CLI or other AI-assisted development tools
  • Proven experience upgrading legacy applications to Java 21
  • Prior experience in J2EE application migration and modernization projects

Responsibilities

  • Upgrade and modernize legacy J2EE applications to Java 21.
  • Analyze and refactor existing codebases using OpenRewrite and modernization tools.
  • Migrate applications running on WebSphere to modern runtime environments where applicable.
  • Develop and maintain enterprise applications using Java, Spring, and AWS services.
  • Work closely with architects and business teams to define modernization strategies.
  • Containerize applications using Docker.
  • Optimize application performance, security, and scalability.
  • Leverage AI development tools such as Claude Code/CLI to improve engineering productivity.

Skills

  • Java
  • j2ee
  • spring
  • amazon-web-services
  • spring-framework
  • spring-boot
  • apache-struts
  • apache-maven
  • ibm-websphere
  • websphere
  • ibm-websphere-application-server
  • websphere-liberty
  • Docker
  • oracle
  • oracle-database
  • claude-code
  • claude-by-anthropic
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