AES - DE - FS - Java Spring Microservices

We are seeking experienced Senior Java Developer / Technical Lead to lead and execute a Java platform modernization initiative involving the migration of enterprise applications from Oracle JDK 8 to OpenJDK 17/21. The candidate will be responsible for independently assessing application compatibility, upgrading dependent frameworks, resolving migration issues, and supporting deployments across development, testing, and production environments.
This is primarily a Lift-and-Shift migration initiative driven by WebLogic upgrades and end-of-life (EOL) requirements. The ideal candidate should possess strong expertise in legacy Java enterprise applications, WebLogic, Spring Framework, Hibernate, EJB, and CI/CD pipelines.
8+ years of hands-on experience in Java application development and support.
Strong experience with Java 8 and migration to Java 17/21.
Expertise in SOAP Web Services, EJB, Spring Framework, and Hibernate.
Experience working with Oracle WebLogic Server in enterprise environments.
Proficiency in source code management using Bitbucket and CI/CD pipelines using Jenkins.
Experience in application modernization, dependency upgrades, and production deployments.
Strong troubleshooting, debugging, and problem-solving skills.
Ability to work independently and drive migration activities with minimal supervision.
Lead the migration of applications from JDK 8 to OpenJDK 17/21.
Assess and resolve code and dependency compatibility issues.
Upgrade Spring Framework and Hibernate to supported versions.
Support SOAP-based services and EJB-based transaction management components.
Perform code remediation, testing, and validation of migrated applications.
Manage application build, deployment, and release activities across Dev, Test, and Production environments.
Utilize Bitbucket for source code management and Jenkins for CI/CD pipeline execution.
Troubleshoot and resolve migration, deployment, and performance issues.
Collaborate with infrastructure teams during WebLogic upgrades.
Drive the migration project independently with minimal supervision.