IBM Middleware Administrator (m/f/d)
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Key skills for this role
About the Role
Halian seeks an experienced IBM Middleware Administrator to manage WebSphere Application Server and IBM MQ environments in a regulated enterprise. The role focuses on patch deployment, security hardening, performance monitoring, and incident resolution.
Key Skills for This Role
Responsibilities
- Plan and execute patch deployment and version upgrades for IBM WebSphere Application Server and IBM MQ environments
- Implement and maintain IBM MQ security controls including SSL/TLS encryption, LDAP integration, and channel authentication rules
- 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/channel performance optimization
- Provide L2/L3 support for middleware related incidents, perform root cause analysis, and implement preventive measures
- Maintain and support enterprise integration platforms for application communication
- Identify opportunities to automate patch deployment, monitoring, and routine maintenance activities
- Ensure middleware environments align with internal IT and security standards and regulatory requirements
- Maintain documentation for system configurations, patch history, and performance baselines
- Support audits and provide required compliance evidence
Requirements
- 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
- Experience supporting mission critical, large scale environments
- Experience in banking or regulated industries is highly preferred
- IBM Certified System Administrator – WebSphere Application Server (preferred)
- IBM Certified Solution Advisor – MQ V9.0 (preferred)
- Strong analytical and troubleshooting skills
- Ability to work in high pressure, production critical environments
- Effective communication and cross team collaboration
Full Job Posting
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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