Senior Linux/Unix Server Administrator - OCI

dxctechnology· 3001 DXC Technology Australia Pty Limited
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📍 AUS - SA - ADELAIDEFull time
Full time3001 DXC Technology Australia Pty Limited

About this role

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

Required

  • 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

  • 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.

At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes 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 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.

Frequently Asked Questions

Is the salary disclosed for the Senior Linux/Unix Server Administrator - OCI position at dxctechnology?
The salary for this Senior Linux/Unix Server Administrator - OCI role at dxctechnology is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Senior Linux/Unix Server Administrator - OCI position at dxctechnology located?
This Senior Linux/Unix Server Administrator - OCI role at dxctechnology is based in AUS - SA - ADELAIDE. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Senior Linux/Unix Server Administrator - OCI role at dxctechnology full-time or part-time?
This is listed as a Full time position. It is posted as a Senior Linux/Unix Server Administrator - OCI role in the 3001 DXC Technology Australia Pty Limited department at dxctechnology.
Which team or department does the Senior Linux/Unix Server Administrator - OCI at dxctechnology belong to?
This Senior Linux/Unix Server Administrator - OCI position is part of the 3001 DXC Technology Australia Pty Limited department at dxctechnology. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior Linux/Unix Server Administrator - OCI position at dxctechnology?
Click the "Apply Now" button on this page. You will be redirected to dxctechnology's official application portal hosted on workday where you can submit your application directly.
When was the Senior Linux/Unix Server Administrator - OCI job at dxctechnology posted?
This Senior Linux/Unix Server Administrator - OCI position at dxctechnology was posted on Aug 14, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior Linux/Unix Server Administrator - OCI
dxctechnology
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