Paris-Based Senior Systems & Middleware Engineer

SEIDOR; Paris; Sur place; EUR 90 000 - 130 000; Plein temps

Résumé du poste

SEIDOR in Paris is seeking a Senior Systems & Middleware Engineer to join our onsite team at the CEB premises. You will maintain, administer, and support enterprise Linux and Windows Server environments, ensuring stability, security, and performance for critical business applications.

You will manage middleware like IIS, Apache, JBoss, .NET, and Java/JRE, perform upgrades, plan geographically across DEV, TEST, UAT and PROD, and work with vendors and IT teams.

Qualifications

• Over 15 years of relevant IT experience in enterprise environments.
• Strong Linux and Windows Server administration expertise.
• Hands-on middleware administration with IIS, Apache, JBoss, .NET and Java/JRE.
• Experience managing OS, middleware, and application upgrades throughout their lifecycle.
• Experience coordinating with external vendors and multidisciplinary IT teams.
• Bilingual in English and French (written and spoken).

Responsabilités

• Maintain, administer, and support enterprise Linux and Windows Server environments.
• Ensure stability, availability, security, and performance of platforms hosting critical business apps.
• Perform advanced troubleshooting and root cause analysis of complex incidents.
• Manage OS patching, upgrades, and lifecycle activities.
• Support virtualized environments and related infrastructure components.
• Administer, maintain, troubleshoot, and upgrade middleware technologies (IIS, Apache, JBoss, .NET, Java/JRE).
• Plan, coordinate, execute, test, and validate OS, middleware, and application upgrades.
• Monitor and optimize platform performance and reliability.
• Coordinate maintenance with software vendors, service providers, and IT teams.
• Work onsite full-time at the Paris CEB premises; occasional remote work may be possible.

Connaissances

Linux administration

Windows Server administration

Middleware engineering

IIS

Apache

JBoss

.NET Framework

Java/JRE

Web services

APIs

Batch processing

Performance monitoring

Root cause analysis

Incident resolution

Virtualized environments

Dev/Test/UAT/Prod environments

Description du poste

SEIDOR in Paris is seeking a Senior Systems & Middleware Engineer to join our onsite team at the CEB premises. You will maintain, administer, and support enterprise Linux and Windows Server environments, ensuring stability, security, and performance for critical business applications.

You will manage middleware like IIS, Apache, JBoss, .NET, and Java/JRE, perform upgrades, plan geographically across DEV, TEST, UAT and PROD, and work with vendors and IT teams.