Infrastructure Engineer – Linux/Unix

About the role

Infosys is seeking an experienced Infrastructure Engineer to lead Linux/Unix server operations for a Sydney‑based customer environment. You will be responsible for the full lifecycle of RHEL, Solaris and AIX servers, ensuring high availability, security and performance across physical, virtual and cloud workloads.

Key responsibilities

• Build, run, patch, monitor and manage the lifecycle of Linux/Unix servers, including user/group management, filesystem/LVM, services and kernel updates.
• Coordinate support across VMware/ESX, AWS, Azure, GCP and OCI environments, handling 24x7 monitoring, incident, change, problem and service request management.
• Drive patch planning, vulnerability remediation, rollback planning and operational risk tracking.
• Collaborate with storage, backup, database, network, security and application teams to resolve issues and maintain service continuity.
• Maintain ServiceNow/CMDB accuracy, server inventory, SOPs, runbooks and knowledge articles.
• Prepare shift rosters, ensure 24x7 coverage and lead governance forums with stakeholders.
• Train L1‑L3 colleagues on operational procedures, automation scripts and runbooks.
• Develop automation for health checks, patch reporting and self‑healing using Ansible, Jenkins and GitHub.

Required profile

• Strong analytical and troubleshooting skills with ownership of P1/P2 incidents.
• Excellent verbal and written communication, able to work with customers, tower leads and offshore teams.
• Willingness to learn new technologies and adapt quickly to transition needs.

Required skills

• Linux administration (RHEL), Unix administration (Solaris/AIX), shell scripting.
• Server build, patching, performance monitoring and incident/change/problem management.
• VMware/ESX, Windows interoperability and data‑centre operations.
• Automation tools: Ansible, Terraform, Jenkins, GitHub.
• Monitoring: Nagios, ELK, OpenNMS, Splunk.
• ServiceNow ITSM/CMDB.
• Cloud platforms: AWS, Azure, GCP, OCI.
• Container platforms and Red Hat OpenShift (good to have).

What we offer

• Competitive salary AUD 108,571 – 119,893 per year.
• Flexible hybrid working arrangements.
• Health insurance discount, fitness memberships and well‑being programs.
• Income protection, paid parental and volunteer leave.
• Salary packaging and novated leasing options.