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IBM Middleware Administrator (m/f/d)

Halian | Managed Services, Recruitment Agency & Contract Staffing
Abu Dhabi Emirate, UAE
Full Time
Senior
1 months ago
IBM WebSphere Application ServerIBM MQPatch ManagementSecurity HardeningPerformance MonitoringIncident Management
Free

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Role Purpose

  • The IBM Middleware Administrator is responsible for managing and maintaining enterprise IBM WebSphere Application Server and IBM MQ environments, which support mission critical integration and messaging platforms.
  • The role focuses on patch deployment, version upgrades, security hardening, performance monitoring, and incident resolution, ensuring middleware systems remain secure, stable, and highly available in a regulated enterprise environment.

Key Responsibilities

  • Plan and execute patch deployment and version upgrades for IBM WebSphere Application Server (WAS) and IBM MQ environments.
  • Ensure timely application of security patches across middleware components.
  • Perform patch testing, impact analysis, and rollback planning.
  • Minimize downtime during upgrades using controlled and phased deployment approaches.
  • Implement and maintain IBM MQ security controls including SSL/TLS encryption, LDAP integration, and channel authentication (CHLAUTH) rules.
  • Ensure middleware platforms comply with security standards and enterprise policies.
  • Identify and remediate vulnerabilities in middleware configurations.
  • Collaborate with cybersecurity teams to strengthen platform security.
  • Monitor health and performance of WebSphere Application Server environments and IBM MQ queues and channels.
  • Conduct performance tuning activities such as JVM optimization, thread pool tuning, and queue and channel performance optimization.
  • Identify and resolve performance bottlenecks affecting application integration.
  • Provide L2/L3 support for middleware related incidents, diagnose and resolve issues involving application connectivity, messaging failures, and system performance degradation.

Qualifications & Experience

  • Bachelor's degree in Information Technology, Computer Science, Systems Engineering or related field.
  • 8–10 years of experience in IBM Middleware administration and enterprise integration environments.
  • Hands on experience with IBM WebSphere Application Server (WAS) and IBM MQ (Messaging systems).
  • Experience supporting mission critical, large scale environments.
  • Experience in banking or regulated industries is highly preferred.
  • Strong expertise in IBM WebSphere Application Server administration and IBM MQ configuration and management.
  • Experience with middleware patching and upgrade processes, SSL/TLS configuration and certificate management, LDAP integration and authentication mechanisms.
  • Knowledge of middleware performance tuning and JVM optimization, messaging systems and integration patterns.
  • Familiarity with Linux/Unix environments and monitoring/logging tools.
  • Basic scripting knowledge (Shell, Python) is advantageous.
  • IBM Certified System Administrator – WebSphere Application Server (preferred).
  • IBM Certified Solution Advisor – MQ V9.0 (preferred).

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