Java Software Engineer

Senior Java + JBoss EAP / Jakarta EE Migration

Engineer

Location: UAE (Onsite) Engagement: 30 weeks (extendable) Experience: 8 – 12

years Industry: IT Services / Enterprise Application Modernisation Joining:

Immediate / 30 days notice

About the Role

We are seeking a Senior Java Engineer with hands-on experience in JBoss EAP

migration and Jakarta EE namespace transitions to join a strategic enterprise

platform modernisation programme for a leading UAE-based industrial

organisation. The successful candidate will play a key role in upgrading legacy

middleware infrastructure to the latest supported stack, ensuring application

stability, performance, and long-term maintainability.

Key Responsibilities

• Migrate enterprise Java applications from JBoss EAP 7 to JBoss EAP 8,

including the full javax.* to jakarta.* namespace transition

• Upgrade and validate Java EE / Jakarta EE components — EJB, JPA, JMS,

JAX-RS, CDI — for compatibility with Jakarta EE 10

• Refactor and rebuild Maven/Gradle dependencies to align with Jakarta EE

10 and OpenJDK 17 standards

• Configure and administer JBoss EAP 8 environments — datasources, JNDI,

connection pooling, clustering, domain mode setup

• Perform performance tuning, JVM optimisation, and garbage-collection

analysis on production workloads

• Collaborate with platform, database, and DevOps teams during staged

rollout, testing, and cutover phases

• Troubleshoot and resolve migration-related issues across application,

middleware, and integration layers

• Document configurations, migration procedures, and operational runbooks

for handover

Required Skills & Experience

• 8 to 12 years of professional experience in Core Java development

• Strong hands-on experience with JBoss EAP (versions 6, 7, or 8) or WildFly

in production environments

• Proven experience executing Java EE to Jakarta EE migrations, particularly

the javax.* to jakarta.* namespace change

• Deep working knowledge of Java EE / Jakarta EE specifications: EJB, JPA,

JMS, JAX-RS, CDI, Servlet API

• Solid Maven / Gradle build expertise, including multi-module projects and

dependency management

• Working knowledge of RHEL or other enterprise Linux distributions

• Experience with Hibernate ORM (5.x and 6.x preferred)

• Familiarity with relational databases — MySQL, Oracle, or PostgreSQL

• Strong debugging skills using thread dumps, heap analysis, and profiling

tools

Preferred Skills

• Hands-on experience with JBoss EAP 8 specifically

• Exposure to Red Hat Migration Toolkit for Applications (MTA / Windup) or

Eclipse Transformer

• OpenJDK 17 or 21 migration from earlier JDK versions

• Experience with CI/CD tools — Jenkins, GitLab CI, or Ansible

• Background in industrial, manufacturing, banking, or telecom enterprise

systems

• Red Hat (RHCSA, RHCJD) or Oracle Java (OCP) certification

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a

related field

• Strong written and verbal communication skills in English

• Ability to work effectively in a structured, governance-driven enterprise

environment