Mainframe zLinux Middleware Administrator

2 weeks ago

Bengaluru, Karnataka, India Peoplelogic Full time ₹ 18,00,000 - ₹ 24,00,000 per year

Required Technical and Professional Expertise

  • Over 6 Years of Experience as a zLinux Middleware Administrator.
  • Install, configure, and manage OpenShift, WebSphere Application Server (WAS), IBM HTTP Server (IHS), and IBM MQ on IBM Z/Linux.
  • Deploy and manage containerized applications using Kubernetes and OpenShift operators.
  • Configure and maintain high availability (HA), clustering, and load balancing for all middleware components.
  • Tune JVM settings, heap size, garbage collection, and thread pools for WebSphere applications.
  • Optimize IBM MQ message flow, queue depth, and performance.
  • Configure caching, compression, and load balancing in IHS for improved web performance.
  • Use Splunk, ELK, Prometheus, Grafana, or IBM Tivoli Monitoring (ITM) for real-time system and application monitoring.
  • Implement SSL/TLS encryption, LDAP authentication, OAuth, and RBAC policies across middleware components.
  • Secure IBM MQ with SSL encryption, authentication, and message signing.
  • Set up WebSphere Network Deployment (ND) clusters for high availability.
  • Configure multi-instance queue managers and failover strategies for IBM MQ.

Preferred Technical and Professional Experience

  • Implement OpenShift scaling policies for auto-scaling and redundancy.
  • Ensure backup and recovery strategies using IBM Spectrum Protect (TSM).
  • Develop Ansible playbooks, Python scripts, and shell scripts to automate administration tasks.
  • Build and maintain CI/CD pipelines for WebSphere, OpenShift, and IBM MQ.
  • Provide 24/7 on-call support for production environments (if required).
  • Work closely with application developers, DevOps teams, network engineers, and security teams.

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