Role Summary The AIX Engineer is responsible for the administration, maintenance, support and optimisation of IBM AIX operating systems within a mission-critical enterprise setting. The role includes operating system administration, provisioning, patch management, user and access administration, backup and recovery, storage and file system management, compliance, performance optimisation and vendor coordination.

The engineer will work closely with infrastructure, application, database, storage, network and security teams to ensure high availability, operational stability and compliance across the AIX platform. Key Responsibilities

Operating System Administration

Administer and maintain IBM AIX operating systems across production, test and development environments.

Perform system provisioning, installation, configuration and decommissioning.

Monitor system health, availability and performance.

Troubleshoot operating system issues and perform root cause analysis.

Perform capacity planning and system optimisation. Provisioning, Patching & Upgrades

Build and provision new AIX servers.

Perform operating system patching and technology level (TL/SP) upgrades.

Coordinate maintenance activities and planned outages.

Validate system functionality following upgrades and patches.

Maintain standard operating procedures for patch management.

User & Access Administration

Create, modify and remove user accounts.

Manage groups, permissions and role-based access controls.

Administer SSH keys and privileged access.

Support audit and security compliance requirements.

Review and maintain system access controls.

Backup & Recovery

Perform operating system backup and recovery activities.

Support backup validation and restore testing.

Coordinate recovery activities during incidents.

Ensure backup policies comply with enterprise standards.

Support disaster recovery exercises.

Storage & File System Management





Manage AIX file systems, logical volumes and volume groups.

Perform storage allocation and expansion activities.

Optimise storage utilisation and file system performance.

Monitor disk usage and capacity.

Support SAN storage integration.

Performance & Capacity Management

Monitor CPU, memory, disk and I/O performance.

Analyse system bottlenecks and recommend improvements.

Tune operating system parameters.

Support performance troubleshooting across infrastructure components.

Vendor Management

Liaise with IBM and other technology vendors for technical support.

Raise and manage vendor support cases.

Coordinate issue resolution and software fixes.

Participate in vendor-led maintenance activities.

Security & Compliance

Ensure AIX environments comply with organisational security standards.

Support vulnerability remediation.

Implement operating system hardening.

Assist with security audits and compliance reporting.

Maintain configuration standards and documentation.

Incident & Problem Management

Investigate and resolve Level 2 and Level 3 incidents.

Perform root cause analysis for recurring issues.

Participate in major incident resolution.

Maintain knowledge articles and operational documentation.

Change & Release Management

Participate in change planning and implementation.

Execute infrastructure changes in accordance with ITIL processes.

Support release deployments and post-implementation validation.

Maintain change records and technical documentation.

Documentation





Maintain system documentation, build guides and operational procedures.

Document configuration changes and environment updates.

Develop knowledge articles and support documentation.

Technical

Skills

Operating Systems

IBM AIX 7.x

Power Systems

VIOS

Storage

Volume Groups (VG)

Logical Volumes (LV)

JFS2 File Systems

SAN Storage

Backup

Enterprise Backup Solutions

Backup & Restore

Disaster Recovery

Security

User Administration

Access Management

SSH

OS Hardening

Security Compliance

Monitoring

IBM Power Monitoring

Enterprise Monitoring Tools

Performance Monitoring

Scripting

Korn Shell (ksh)

Bash

Perl (desirable)

Python (desirable)

ITSM

Incident Management

Problem Management

Change Management

ServiceNow (preferred) Experience

5–10+ years of IBM AIX administration in enterprise environments.

Experience supporting mission-critical production systems.

Experience with IBM Power Systems and Virtual I/O Server (VIOS).

Strong troubleshooting and performance tuning experience.

Experience working within ITIL-based managed services environments.

Experience coordinating with IBM support and third-party vendors.

Desirable

Skills

IBM PowerHA / HACMP

NIM (Network Installation Manager)

Automation using Ansible or similar tools

VMware and Linux administration (desirable)

Cloud platform exposure (AWS, Azure or Hybrid Cloud)

Enterprise monitoring and observability platforms (e.g. Splunk, Dynatrace) Key Competencies

Strong analytical and troubleshooting skills.

Excellent communication and stakeholder management.

Ability to work independently and within cross-functional teams.

Strong documentation and process discipline.

Customer-focused with a proactive approach to operational excellence.

Ability to support after-hours maintenance and major incidents when required.

📌 AIX Engineer/ (Sydney)
🏢 Dipole Group
📍 Sydney