Job Description: Key Responsibilities

Infrastructure Administration Install, configure, and administer Linux/Unix servers (RHEL, Oracle Linux, CentOS, AIX, Solaris) across physical, virtual, and cloud environments. Manage IaaS instances on OCI including Compute, Block Storage, Virtual Cloud Networks (VCN), and associated networking constructs. Perform OS patching, upgrades, kernel tuning, and lifecycle management in line with client change management processes. Administer logical volume management (LVM), filesystem layouts, NFS/SMB mounts, and storage provisioning. Configure and maintain high-availability and disaster recovery solutions (clustering, failover, replication).

Cloud & OCI Operations Provision and manage OCI Compute instances, including Bare Metal, VM Shapes, and Dedicated VM Hosts. Configure OCI networking components: VCN, subnets, security lists, network security groups, load balancers, and FastConnect/VPN. Manage OCI Identity and Access Management (IAM), compartments, policies, and tenancy governance. Implement and manage OCI Block Volume, File Storage, and Object Storage for workload requirements. Monitor and optimise OCI resource utilisation, costs, and performance via OCI Monitoring, Logging, and Alarms.

Automation & DevOps Develop and maintain automation scripts using Shell (Bash/Ksh), Python, or Ansible for provisioning, configuration management, and routine operations. Leverage OCI CLI, Terraform, and/or OCI Resource Manager for infrastructure-as-code deployments. Integrate with ITSM tooling (ServiceNow or equivalent) for incident, change, and problem management workflows.

Security & Compliance Apply OS-level security hardening (CIS benchmarks, SELinux/AppArmor, firewall rules, PAM configuration). Manage user accounts, RBAC, SSH key infrastructure, and privileged access in line with least-privilege principles. Support audit and compliance activities including log management, vulnerability remediation, and evidence collection.

Monitoring & Incident Management Monitor system health, capacity, and performance using tools.



Act as L2/L3 for infrastructure incidents; lead root cause analysis and drive resolution within SLA. Produce operational reports, runbooks, and technical documentation for managed platforms.

Qualifications & Experience

5+ years of hands-on Linux/Unix server administration in an enterprise or managed services environment. Deep expertise in Red Hat Enterprise Linux (RHEL) or Oracle Linux; proficiency in at least one additional Unix variant (AIX, Solaris, HP-UX). Strong understanding of TCP/IP networking, DNS, DHCP, NFS, and enterprise storage protocols (iSCSI, FC). Proven scripting skills in Bash, Python, or Perl for automation and operational tasks. Experience with enterprise virtualisation platforms (VMware vSphere, KVM, OVM). Familiarity with ITIL-aligned service delivery processes (Incident, Change, Problem Management). Strong analytical and troubleshooting skills with the ability to work independently under pressure. Excellent written and verbal communication skills for client-facing engagement.

Preferred

Hands-on experience with Oracle Cloud Infrastructure (OCI) - Compute, Networking, Storage, IAM. Exposure to Oracle Engineered Systems: Exadata, Oracle Database Appliance (ODA), or SPARC SuperCluster. Infrastructure-as-Code experience: Terraform, Ansible, OCI Resource Manager. Experience in a professional services / managed services delivery model with multiple concurrent client engagements.

Certifications Highly Desirable

Oracle Cloud Infrastructure Foundations Associate (1Z0-1085); Oracle Cloud Infrastructure Architect Associate or Professional (1Z0-1072 / 1Z0-1067); Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE); Oracle Linux System Administrator (1Z0-100); ITIL Foundation v4 Core Competencies.

Core Competencies





Client Focus - proactively manages expectations and builds trusted relationships with client technical teams.

Problem Solving - systematic approach to diagnosing complex infrastructure issues with minimal guidance.

Collaboration - works effectively within multi-disciplinary delivery teams across time zones.

Accountability - takes ownership of outcomes and maintains quality standards under delivery pressure.

Continuous Improvement - identifies and implements process improvements to reduce toil and improve reliability.

Company Culture & Commitment

At DXC Technology, we believe robust connections and community are key to our success. Our work model prioritises in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We're committed to fostering an inclusive environment where everyone can thrive.

Recruitment Notice

Recruitment fraud is a scheme in which fictitious job opportunities are offered to job seekers typically through online services, such as false websites, or through unsolicited emails claiming to be from the company. These emails may request recipients to provide personal information or to make payments as part of their illegitimate recruiting process. DXC does not make offers of employment via social media networks and DXC never asks for any money or payments from applicants at any point in the recruitment process, nor ask a job seeker to purchase IT or other equipment on our behalf. More information on employment scams is available here.

About DXC Technology

DXC Technology (NYSE: DXC) is a leading enterprise technology and innovation partner delivering software, services, and solutions to global enterprises and public sector organizations - helping them harness AI to drive outcomes at a time of exponential change with speed. With deep expertise in Managed Infrastructure Services, Application Modernization, and Industry-Specific Software Solutions, DXC modernises, secures, and operates some of the world's most complex technology estates. Learn more on dxc.com.

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📌 Senior Linux/Unix Server Administrator - OCI (Adelaide)
🏢 DXC Technology
📍 Adelaide