Principal Associate, Linux Administration

Principal Associate, Linux Administration

Chicago, IL (Loop) – Onsite 3 days per week

Under supervision, you will be performing activities and providing team leadership to support a large, complex Linux based computing environment and an increasing transition to Linux infrastructure in AWS. Additionally, you will assist in driving "infrastructure as code" mentality throughout the organization and demonstrate a passion for automation concepts and tools.

• Provide advanced system administration, operational support and problem resolution for a large complex Linux computing environment, including both virtualized and physical servers.
• Create and Patch AMIs, perform pull requests, write Automation code using tools such as Ansible, Terraform, etc.
• Perform Linux administration including changes, deletes, disk space management, application installation and support.
• Use your infrastructure and networking knowledge to maintain cloud-based infrastructure (predominantly on AWS) involving EC2, S3, RDS & VPC.
• Use configuration management tools (Ansible and Terraform) to build and maintain a hybrid infrastructure hosted both at colocation facilities and in the public cloud.
• Work directly with the development team to build supporting infrastructure for specific new application functionality.
• Run proof of concept projects on early stage infrastructure improvements to validate the feasibility of an approach, evaluate performance, and spike an implementation.
• Review and evaluate virtual and physical server performance and capacity.
• Forecast system demands and recommend upgrades, expansions and reconfigurations.
• Perform automated computing environment builds, site setup, user training, hardware/software installation, maintenance and support and documentation of operating procedures and processes.
• Support VMware environment including changes, adding/removing systems, and disk space management.
• Troubleshoot hardware and software problems, take appropriate corrective action and/or interact with IT staff or vendors in performing complex testing, support, server recovery, and troubleshooting functions.
• Assist with development and testing of changes needed to maintain a DR environment.
• Comply with all audit, compliance, and regulatory requirements.
• Attend meetings as a team representative.
• Support on call, weekend and off hours work as needed.
• Perform other duties as assigned.

• 6+ years of experience in Linux systems installation, operations, administration, and maintenance of physical and virtualized servers.
• 2+ years of experience with Kubernetes during Dev Ops (ideally EKS).
• Experience with Amazon Linux technologies (AMI, EC2, and/or ECS).
• Extensive knowledge of Linux operating systems, Linux shells and standard utilities, and common Linux security tools.
• Extensive Red Hat Linux administration experience.
• Ability to write and maintain code and scripts to automate tasks and manage infrastructure as code (IaC) with Terraform.

• Experience with AWS or Azure.
• Experience with Git Hub, Ansible, Jenkins and Terraform tools/applications.