IBM WebSphere Administrator | , Atlanta, GA

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Job Title: IBM WebSphere Administrator

Location: Atlanta, GA

Job Description:

• We are seeking a highly skilled WebSphere Administrator with expertise in IBM WebSphere Application Server (WAS), WebSphere Liberty, and Enterprise Service Bus (ESB) platforms.
• The ideal candidate will manage middleware infrastructure, support enterprise integration solutions, perform performance tuning, and ensure high availability across mission‑critical systems.

Key Responsibilities

• WebSphere Traditional (WAS) Administration
• Install, configure, and maintain WebSphere ND, Deployment Manager, Node Agents, and application servers.
• Configure clusters, JDBC providers, JMS resources, data sources, and application deployments.
• Manage SSL/TLS certificates, secure communication, and keystore/truststore configurations.
• Monitor system health, session management, workload distribution, and high-availability setups.
• Troubleshoot JVM, thread dumps, logs, application issues, and infrastructure components.

WebSphere Liberty Administration

• Install, configure, and maintain WebSphere Liberty servers, server.xml configuration, feature management, and environment setups.
• Enable Liberty runtime features, logging, tuning, security configuration, and microservices-based deployments.
• Deploy Java EE/web applications and ensure adherence to lightweight Liberty architecture.
• Integrate Liberty into CI/CD workflows and container platforms (Docker, OpenShift, Kubernetes).
• ESB (Enterprise Service Bus) Administration
• (Applicable to IBM Integration Bus (IIB), IBM ACE, IBM ESB, Mule ESB, or similar ESB platforms.)

Core ESB Responsibilities

• Install, configure, and support ESB middleware environments used for enterprise service integration.
• Manage message flows, mediation modules, endpoints, service orchestrations, and adapters.
• Configure and troubleshoot SOAP/REST services, JMS messaging, MQ queues, HTTP/HTTPS endpoints, and transformation logic.
• Maintain ESB artifacts such as modules, SCA components, mediation flows, and integration services.
• Implement ESB routing, message transformation, protocol bridging, and error‑handling strategies.
• Monitor ESB performance, message throughput, bottlenecks, and persistent storage.
• Deploy BAR files (IIB/ACE), mediation modules (WESB), or integration apps depending on platform.
• Manage versioning, CI/CD pipelines, and automated deployment of integration components.

Integration & MQ

• Support IBM MQ objects: queues, channels, topics, SVRCONN, listeners, and security.
• Ensure reliable message delivery, persistence, and high-availability configurations.
• Environment Support & DevOps
• Automate processes using Ansible, Terraform, shell, or Python.
• Integrate application servers and ESB into CI/CD pipelines (Jenkins, Azure DevOps, GitLab CI).
• Configure monitoring with Splunk, Dynatrace, AppDynamics, or Grafana.
• Support Linux/Unix environments for application and middleware hosting.
• Participate in 24x7 on-call rotations for production support and issue resolution.

Required Skills & Qualifications

• 5+ years of experience administering WebSphere Application Server (WAS ND).
• 3+ years of experience with WebSphere Liberty.
• 3+ years of experience working with an ESB platform (IBM ESB, IIB/ACE, Mule ESB, TIBCO, etc.).
• Strong understanding of Java EE stack, middleware architectures, SOAP/REST services, and JMS.
• Experience in SSL/TLS, certificates, certificates management, and secure communication setup.
• Strong troubleshooting of JVM, heap dumps, ESB message flows, and integration issues.
• Expertise in Linux/Unix administration and automation scripting.
• Familiarity with containers, Kubernetes, or OpenShift is a plus.

Preferred Qualifications

• IBM certifications for WebSphere, Liberty, Integration Bus, or ESB technologies.
• Experience with cloud-native deployments (AWS, Azure, Google Cloud Platform).
• Strong understanding of microservices, service mesh, and API gateway patterns.
• Experience with MQ clustering and high availability.