Systems administrator (infrastructure)

Job Description

Mode of Work - Hybrid(Monday, Wednesday, Friday-WFO)

Shift - 6 AM-3 PM IST

Skills and experience

Minimum 4 years in systems and infrastructure administration in an enterprise environment (6 or more preferred). Strong hands-on Windows Server and Linux server administration. Strong VMware virtualisation administration. Strong Microsoft Azure administration. Active Directory and Entra ID at an infrastructure and policy level (health,configuration, governance). Hands-on management of network switching and wireless — Cisco switches and wireless, and Aruba wireless. Firewall administration is not required. Infrastructure patching experience — firmware and OS updates across physical compute, storage, and network hardware, and virtualisation platforms. Backup and recovery administration, including fault diagnosis and remediation. Working knowledge of vulnerability management and access governance. Awareness of the ACSC Essential Eight, NIST CSF, or ISO 27001 sufficient to implement controls. Experience working within ITIL-based change management. Demonstrated ability to work independently, set their own priorities, and drive work to completion without close supervision. Fluent written and spoken English, with the ability to communicate clearly with non technical staff. Certifications desirable: Cisco CCNA, Microsoft AZ-104, VMware Certified Professional, Comp TIA Security+. GMP or other regulated industry experience advantageous but not essential.

Key accountabilities

Administer and maintain the virtual server environment across VMware and Azure, including host and guest management. Responsible for keeping the environment healthy, monitoring for issues, and resolving faults. Administer Azure cloud services and supporting infrastructure, including configuration, capacity monitoring, and cost-efficient operation. Escalate architectural or investment decisions to the Head of Digital and Technology. Maintain and manage network switching and wireless — Cisco switches and wireless across the environment, and Aruba wireless at the Adelaide site. Perform infrastructure patching — firmware and OS updates for physical compute, storage, and network hardware, and for VMware and other virtualisation platforms. Responsible for server and endpoint patching — setting the approach and schedule, and ensuring cycles are completed. Routine execution is carried out by Bio Cina staff; this role tracks completion and addresses any slippage or failures. Responsible for the ongoing operation of the backup environment — maintaining backup infrastructure, investigating and resolving failures, and confirming data remains recoverable. Triage and remediate vulnerability findings relevant to servers and infrastructure, and report on progress. Maintain Active Directory and Entra ID health, policy, and configuration, and support access governance and periodic access reviews. Implement infrastructure changes arising from cyber security remediation roadmap. Log and manage all changes through Jira Service Management in accordance with ITIL-based change control procedure. Support computer system validation and qualification by maintaining accurate configuration records and audit-trail settings. Maintain infrastructure documentation, runbooks, and configuration records within systems. Direct on-site colleagues for physical tasks and act as an escalation point above L1 for infrastructure matters. Contribute to Digital project work.