Senior Systems Administrator (Linux)

Business Unit:

Cubic Corporation

Company Details:

When you join Cubic, you become part of a company that creates and delivers technology solutions in transportation to make people's lives easier by simplifying their daily journeys, and defense capabilities to help promote mission success and safety for those who serve their nation. Led by our talented teams around the world, Cubic is committed to solving global issues through innovation and service to our customers and partners.
We have a top-tier portfolio of businesses, including Cubic Transportation Systems (CTS) and Cubic Defense (CD). Explore more on Cubic.com.

Job Details:

Job Summary: We're looking for a Senior Systems Administrator who can blend strong technical know-how with a deep understanding of Linux and Azure environments to support and scale our growing infrastructure needs.

Work Shift: 24x7 Rotational
Experience: 5+ Years
Primary Skills: Linux, Azure, Production Systems
Secondary Skills: Windows Server, VMware

Responsibilities :

Azure Administration

• Design, deploy, and manage resources in Azure using ARM templates and Terraform.

• Implement secure, scalable Azure environments with IAM and networking (VNets, NSGs, Load Balancers, Gateways).

• Monitor and optimize resources using Azure Monitor, Log Analytics, and Application Insights.

• Drive cost efficiency, disaster recovery planning, and resource utilization.

• Collaborate on cloud migrations, vulnerability remediation, and system modernization.

• Certification such as Azure Administrator Associate or Solutions Architect Expert is a huge plus!

Linux Administration (CentOS/Red Hat)

• Administer and maintain production-grade Linux servers, perform OS patching, tuning, and secure configurations (SELinux, iptables, etc.).

• Manage storage using LVM, configure NFS/SMB, and automate tasks via shell scripting or tools like Ansible/Chef.

• Support open-source tools like Nginx, Apache, SFTP/FTP, and assist in performance tuning and capacity planning.

• Troubleshoot system issues and work with hardware vendors when needed.

Windows + VMware (Secondary Skillset)

• Manage Windows Server environments alongside Hyper-V/VMware virtual infrastructure.

• Ensure backup, recovery, and business continuity measures are in place.

• Contribute to identity access management across hybrid environments.

Minimum Job Requirements:

• Bachelor's degree, or equivalent years of experience in lieu of a degree.

• Five (5)+ years of hands-on experience in systems administration, with a focus on Azure and Linux.

• Proven expertise in enterprise IT environments, system performance, and infrastructure management.

• Ability to work in a rotational 24x7 support model.

• You bring a solution-driven mindset, stay updated with tech trends, and thrive in a collaborative, high-stakes environment.

Worker Type:

Employee