Senior WebSphere Middleware Engineer | Liberty Migration Expert

Decskill; Portugal; On-site; EUR 65,000 - 90,000; Full time

Job summary

Decskill is hiring a Senior Middleware Operations Engineer specialized in WebSphere to ensure service stability, availability, and operational excellence in production environments. The role covers L2/L3 support, incident resolution, monitoring, and ongoing modernization toward Liberty.

Ideal candidates bring 5+ years in middleware operations, strong WebSphere administration, and experience migrating to Liberty, plus automation skills with Ansible, Shell, and Python.

Qualifications

• Minimum 5 years in middleware operations or production support.
• Hands-on WebSphere Application Server administration experience.
• At least one completed migration from WebSphere ND/Base to Liberty.
• Experience with monitoring, incident management, troubleshooting.
• Strong Linux/Unix, JVM fundamentals, and log analysis.
• Experience with Ansible for automation.
• Shell scripting and Python proficiency.
• Familiarity with deployment/orchestration tools such as XLD/XLR.
• Experience in high-availability or regulated environments is a plus.
• Excellent command of English (spoken and written).

Responsibilities

• Ensure stability, availability, and operational excellence of WebSphere services in production.
• Provide L2/L3 production support for middleware environments.
• Manage incidents, troubleshoot, and coordinate service restoration.
• Monitor logs, runtime issues, and server resource usage.
• Perform changes, restarts, patching, and lifecycle activities.
• Support WebSphere migration and modernization to Liberty.
• Contribute to platform optimization and stability.
• Coordinate with legacy, scheduling, and deployment teams.
• Automate tasks using Ansible, shell scripting and Python.
• Assist deployment/orchestration using XLD, XLR, or equivalents.
• Identify automation opportunities and drive improvements.
• Work autonomously on complex, critical environments.

Skills

WebSphere App Server administration

Middleware operations

Migration to Liberty

Ansible

Shell scripting

Python

XLD

XLR

Linux/Unix

JVM fundamentals

Log analysis

Incident management

English proficiency

Tools

XLD

XLR

Job description

Decskill is hiring a Senior Middleware Operations Engineer specialized in WebSphere to ensure service stability, availability, and operational excellence in production environments. The role covers L2/L3 support, incident resolution, monitoring, and ongoing modernization toward Liberty.

Ideal candidates bring 5+ years in middleware operations, strong WebSphere administration, and experience migrating to Liberty, plus automation skills with Ansible, Shell, and Python.