L3 Linux Administrator – WebSphere & Ansible

• Ansible
  

• IBM WebSphere Application Server (WAS)
  

• Red Hat Linux
  

• 810 years

We are seeking an experienced L3 Linux Administrator with strong expertise in Red Hat Linux IBM WebSphere Application Server (WAS) Ansible Automation and Configuration as Code (CaC). The successful candidate will be responsible for maintaining mission-critical production environments supporting enterprise middleware platforms driving infrastructure automation and ensuring system availability stability security and performance.

The role requires deep technical expertise in Linux administration WebSphere middleware infrastructure automation troubleshooting and production support within large enterprise environments.

• Administer and support Red Hat Enterprise Linux (RHEL) servers across Production DR and Non-Production environments.
  

• Perform OS installation patching upgrades security hardening and performance tuning.
  

• Troubleshoot Linux operating system storage file system networking and security-related issues.
  

• Monitor system health capacity and performance.
  

• Collaborate with developers operations and security teams to design and implement robust secure and scalable infrastructure and systems.
  

• Automate the deployment scaling and observability of applications and services.
  

• Continuously improve and optimize the performance availability and security of our systems.
  

• Work closely with the SRE team to design and implement deployment pipelines incident response and recovery plans.
  

• Continuously improve and optimize the performance availability and security of our systems.
  

• Install configure administer and support IBM WebSphere Application Server (WAS/WAS ND).
  

• Manage application deployments clustering node synchronization and JVM tuning.
  

• Support IBM HTTP Server (IHS) Plugin configurations SSL certificate management and middleware integrations.
  

• Perform root cause analysis and troubleshooting for WebSphere production incidents.
  

• Support application performance tuning and platform optimization.
  

• Develop and maintain Ansible Playbooks Roles and Automation Frameworks.
  

• Implement and support Configuration as Code (CaC) principles to standardize environment configurations.

• Automate server provisioning patching middleware deployments compliance checks and configuration management.
  

• Ensure configuration consistency across environments through Git-based workflows and automation.
  

• Collaborate with development and infrastructure teams to improve deployment efficiency.
  

1. Red Hat Linux Administration (RHEL) Advanced troubleshooting performance tuning security hardening and production support.

2. IBM WebSphere Application Server (WAS / WAS ND) Installation administration clustering deployment and middleware troubleshooting.

3. Ansible & Configuration as Code (CaC) Automation configuration management playbook development and infrastructure standardization.
   

1. Git GitHub Jenkins and CI/CD Tooling
   

2. ITSM ServiceNow

3. Monitoring & Observability Tools