Senior WebSphere Administrator

Senior WebSphere Administrator



Detroit, MI



Responsibilities:





WebSphere Administration:





Install and upgrade WebSphere Application Server (WAS) Network Deployment 8.5.5.x, 9.50.5.x, and Liberty Profile 22.0.0x and above.

Configure application servers and deployment managers for optimal performance and resource utilization.

Apply fix packs and interim fixes to maintain up-to-date WAS environments.

Design and configure WAS clusters to ensure high availability, load balancing, and fault tolerance.

Set up and manage dynamic clustering, session persistence, and failover capabilities.

Monitor and tune performance using tools like AppDynamics and Azure Monitor.

Implement security best practices, including SSL/TLS certificate management and secure communications.

Perform regular security assessments and patch updates to meet compliance requirements.

Diagnose and resolve performance, application, and server issues effectively.

Analyze logs and utilize monitoring tools to pinpoint root causes of issues.

Collaborate with development teams for efficient troubleshooting and problem resolution.

Develop and maintain clear, comprehensive documentation for configurations and procedures.

Create standard operating procedures (SOPs) for common administrative tasks.





Cloud-Based Administration:



Leverage Azure VM experience to optimize cloud-based WAS environments.

Set up, monitor, and manage WebSphere servers on Azure VMs, ensuring seamless cloud operations.

Configure network settings, load balancing, and clustering within Azure cloud environments.





Automation & Scripting:



Familiarity with Linux OS and scripting languages (e.g., Shell, Python) for automation and task management.





Networking & Infrastructure:



Possess foundational knowledge of networking principles and load balancing techniques.





IBM HTTP Server (IHS) Administration:



Install and configure IBM HTTP Server 8.5.5x and above (IHS) to work with WebSphere Application Server on Linux platforms.

Configure the plugin-cfg.xml file to enable communication between IHS and WebSphere Application Server clusters.

Set up SSL/TLS certificates for secure communication on IBM HTTP Server.

Enable load balancing and failover using the WebSphere plugin within IBM HTTP Server.

Optimize performance through caching configurations and fine-tuning of HTTP server settings.

Implement security best practices, including setting access controls and securing directory structures.

Monitor and analyze IHS logs for troubleshooting and performance optimization.

Regularly update and patch IBM HTTP Server to ensure stability and security compliance.

Configure custom error pages and logging levels to enhance monitoring and user experience.









Required Skills:





Strong experience with:





WebSphere Application Server (WAS) Network Deployment and Liberty Profile (versions 8.5.5.x, 9.50.5.x, 22.0.0x and above)

IBM HTTP Server (IHS)

Linux operating system

Scripting languages (e.g., Shell, Python)

Azure cloud platform (VMs, networking, security)





Experience with:



AppDynamics and Azure Monitor

Dynamic clustering, session persistence, and failover

SSL/TLS certificate management

Performance tuning and optimization

Log analysis and troubleshooting





Excellent communication and interpersonal skills

Strong problem-solving and analytical skills

Ability to work independently and as part of a team





Preferred Skills:





Experience with other application servers (e.g., Tomcat, JBoss)

Experience with containerization technologies (e.g., Docker, Kubernetes)

Experience with DevOps practices and tools (e.g., CI/CD pipelines)





Keywords:



WebSphere Application Server, WAS, Liberty Profile, IBM HTTP Server, IHS, Azure, Cloud, Linux, Shell, Python, Scripting, Administration, Deployment, Configuration, Clustering, Performance, Security, Troubleshooting, Monitoring, DevOps, CI/CD