Sr. Linux Systems Engineer managing enterprise IT infrastructure and cloud environments for a digital services company. Collaborating with clients and teams to ensure high availability and security of systems.
Responsibilities
Maintain and support IT infrastructure including server hardware and Linux operating systems
Perform installation, configuration, patching, and upgrades of Linux OS (RHEL 7, 8, 9)
Install, configure, and manage middleware components such as Apache, Tomcat, JBOSS, WebSphere
Develop and maintain Ansible playbooks for OS upgrades (RHEL 7 to RHEL 8), OS hardening, and automation tasks
Experience with Ansible Tower / AWX for configuration management and orchestration
Build and manage virtual machines in Azure Cloud, including mobility and services migration tool installation
Provide guidance and implementation support for OpenShift and Azure cloud environments
Interact with clients to resolve system, application, and infrastructure-related issues
Analyze application performance and ensure availability and performance objectives are met using monitoring and performance tools (AWS)
Lead and contribute to Oracle database migration (11g to 12c) using automated deployment tools
Migrate web applications from WebSphere 7 to Tomcat 8, including deployment to AWS cloud
Upgrade and manage DevOps and CI/CD tools such as Ansible, Puppet, Jenkins, OpenShift, AWS CodeDeploy
Develop AWS CloudFormation templates to automate EC2 provisioning, software installation, and service startup
Deploy and manage application updates across different versions on JBOSS and Tomcat environments
Ensure system security, compliance, and best practices across on-prem and cloud platforms
Requirements
8+ years of experience as a Linux Systems Engineer / Administrator
Strong expertise in RHEL (7, 8, 9) administration
Hands-on experience with Ansible Automation and Ansible Tower
Experience with AWS and Azure cloud platforms
Knowledge of OpenShift container platform
Strong understanding of application servers: Apache, Tomcat, JBOSS, WebSphere
Experience with cloud migrations and application modernization
Familiarity with CI/CD and DevOps tools
Strong troubleshooting and client communication skills
Bachelor's degree in information technology, Computer Science, or related field (preferred)
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