Middleware Operations Engineer

Senior Middleware Operations Engineer — WebSphere / Liberty

Imagine working at a company where your growth is supported every day, even from a distance. Where you are more than just a number: you are part of a constantly expanding team. We are more than 2,430 Primers around the world, and we want one more: YOU.

We are looking for a Senior Middleware Operations Engineer to join a challenging technology project in a financial environment, ensuring the stability of WebSphere services and supporting the modernization of WebSphere ND/Base environments towards Liberty.

🎯 Your role

• Ensure the stability, reliability and operational support of WebSphere production environments.
• Manage L2/L3 incidents, investigate runtime issues and restore services.
• Support and deliver migration activities from WebSphere ND/Base to Liberty.
• Review monitoring, optimize performance and analyse server resources to improve platform stability.
• Support patching, lifecycle activities and the remediation of obsolescence and technical debt.
• Automate operational tasks and support deployments using Ansible, XL Deploy/XL Release, Shell and Python.
• Prepare operational documentation, migration runbooks and technical handovers.
• Coordinate with middleware, infrastructure, application, legacy and production scheduling teams.

🔎 What we are looking for

• 5+ years of experience in middleware operations, application server support or production support.
• Strong hands-on experience administering WebSphere Application Server.
• Previous delivery of at least one completed migration from WebSphere ND or Base to Liberty.
• Strong Liberty configuration, deployment and troubleshooting skills.
• Good knowledge of Linux/Unix, JVM fundamentals, security, connectivity and log analysis.
• Experience in monitoring, incident management, service restoration and production stabilization.
• Practical experience in performance optimization and server resource analysis.
• Experience with Ansible and XL Deploy/XL Release or equivalent deployment and orchestration tools.
• Good knowledge of Shell scripting and Python.
• Understanding of COBOL ecosystem constraints and interfaces, and TWS or equivalent workload automation dependencies.
• Experience with application packaging, release coordination and migration documentation.
• Ability to manage RUN activities autonomously and escalate risks appropriately.
• English at C1 level and French at A1 level.

⭐ Nice to have

• Previous experience in financial, regulated or high-availability environments.

📍 Opportunity details

Location: Lisbon

Experience: 5+ years experience.

Working model: Hybrid — Lisbon

Working hours: 09:00–18:00.

On-call: Required.

Salary Package & Benefits: €1,200 to €2,000 (salary base) + Food Allowance + Flex Benefits

🚀 What we offer

At PrimeIT, we want you to keep growing beyond your current project.

You will have access to Prime Academy, our internal mobility programme Prime Mobility and Prime Health, alongside continuous support from our team.

All of this within an international organization, with projects across different sectors and opportunities for technological and professional growth!

Want to be part of this challenge? Send me your CV and get to know PrimeIT.