IBM WebSphere Administration, WebSphere Liberty Administration, IBM HTTP Server (IHS), Middleware Configuration, Security Administration, Performance Tuning, Troubleshooting, Automation, Scripting, Installation, Patch Management, Operating Systems, Java, Middleware, Environment Management

Job Description :

Seeking an experienced IBM WebSphere and WebSphere Liberty Administrator responsible for installation, configuration, administration, troubleshooting, patching, security, and performance tuning of IBM middleware environments. The candidate should have hands-on experience supporting production, UAT, and development environments.

Key Responsibilities:

- Install, configure, and administer IBM WebSphere Application Server (ND/Base).

- Create and manage Cells, Deployment Managers, Nodes, Node Agents, Clusters, and Application Servers.

- Deploy, undeploy, and troubleshoot EAR/WAR/JAR applications.

- Configure Virtual Hosts, JDBC Providers, Data Sources, JMS Resources, and Connection Pools.

- Manage SSL certificates, KeyStores, TrustStores, KDB, JKS, PKCS12 certificates.

- Perform WebSphere fix pack upgrades, maintenance, and rollback activities.

- Configure and troubleshoot IBM HTTP Server (IHS) and WebSphere Plugin.

- Monitor JVM performance and tune Heap Size, GC, Thread Pools, and Connection Pools.

- Perform backup and recovery of WebSphere configurations.

- Configure LDAP/Active Directory integration.

- Manage user roles and administrative security.

- Implement SSL/TLS certificates and certificate renewals.

- Conduct vulnerability remediation (Log4j, Java, OpenSSL, etc.).

- Analyze SystemOut.log, SystemErr.log, FFDC logs, and trace files.

WebSphere Liberty Administration:

- Install and configure WebSphere Liberty servers.

- Deploy applications using server.xml and Liberty features.

- Configure SSL, LDAP, JDBC, JMS, and Security in Liberty.

- Perform Liberty upgrades and fix pack installations.

- Troubleshoot application startup and deployment issues.

- Configure Liberty collective controllers and member servers.

- Implement application monitoring and health checks.

Required Skills:

- IBM WebSphere Application Server ND 8.x / 9.x

- IBM WebSphere Liberty

- IBM HTTP Server (IHS)

- IBM Installation Manager

- Java/J2EE Applications

- Linux/Unix and Windows Administration

- SSL Certificate Management

- LDAP/Active Directory

- wsadmin scripting (Jython)

- JDBC, JMS, MQ Integration

- Performance Tuning and Troubleshooting