Senior Linux System Engineer — Sydney, Sydney Region

Expired

Seeking a skilled Senior Linux System Engineer to join our Federal Government Client. 12 Months Contract with extensions Sydney, NSW Hybrid work flexibility 2-3 days on-site / WFH Key Responsibilities: • Manage and maintain core IT services including data centres, servers, virtualisation, operating systems, storage, backup, time services, logging, email, domain name resolution, web proxying, and security. • Securely manage connections to and from external networks, ensuring the safety and integrity of data traffic. • Perform daily security monitoring and risk mitigation across the IT environment. • Design, implement, and maintain 600 Linux hosts (primarily Ubuntu with some RHEL) and associated base infrastructure services, including virtualisation (VMware), block and file storage (Pure Storage), backup (Cohesity), and index/search (Splunk). • Administer core applications such as DNS (BIND), NTP, SMTP (Postfix), web proxying (Squid, Forcepoint/Websense), and RSA SecurID. • Work in a secure on-premises environment, contributing to both business-driven and internal projects from design through to service delivery. • Collaborate closely with other technical teams (Development, Platforms, Networks, Windows, Service Desk) to resolve issues and escalate concerns effectively. Required Skills: • Proven Experience as a Senior Linux System Engineer • Extensive experience managing a large fleet of Linux hosts and providing organisation-wide base infrastructure and core services • Ansible automation skills for infrastructure deployment and management • Experience in problem-solving, troubleshooting, documentation, and root cause analysis • A deep understanding of Linux, including networking, auditd, SELinux/AppArmor, IPTABLES/NFTABLES, TLS, and PKI • Experience implementing the ACSC's Essential Eight in a Linux environment Due to security clearance requirements for this role, candidates must be Australian Citizen and with an Active Baseline or NV1 Security Clearance. For a confidential discussion, please contact Gian on gian.guanzonpeoplebank.com.au quoting reference 265790 .