Hybrid Systems Engineer: Cloud, Security & Infra

Service Stream; City of Brisbane; Hybrid; AUD 100,000 - 140,000; Full time

Benefits offered by this job

Growth

Discounts

Paid Leave

Culture

Job summary

Service Stream is seeking a hands-on Systems Engineer (Infrastructure) to join our Enterprise Technology team in Australia. You will balance day-to-day operational support with security uplift initiatives and continuous improvement across Windows, Linux, cloud, and on-premises infrastructure.

You will manage AWS/Azure, Microsoft 365, networking, automation, and IaC, delivering secure, scalable environments while contributing to our SIP and DevOps practices.

Qualifications

• 3+ years of systems administration or infrastructure engineering experience in a medium to large enterprise.
• Hands-on experience with Windows Server and Linux environments.
• Experience with cloud platforms (AWS/Azure) and Microsoft 365 administration.

Responsibilities

• Administer and support Windows Server and Linux environments with security and high availability.
• Manage AWS and Azure infrastructure, including compute, storage, networking, identity, and cost optimization.
• Oversee patching, vulnerability remediation, and security controls (Essential Eight-aligned).
• Manage TLS/SSL certificate lifecycle, renewal, monitoring and rotation.
• Deliver security hardening and remediation aligned with SIP.
• Maintain Microsoft 365 (Entra ID, Exchange Online, Teams, SharePoint, Intune) administration.
• Maintain enterprise networking infrastructure and vendor relationships.
• Develop Infrastructure-as-Code and automation using Terraform, CloudFormation, Bicep, PowerShell, Python, Ansible.
• Contribute to DevOps practices, CI/CD, and automated deployments.
• Manage backup, recovery, and disaster recovery processes.
• Create technical documentation and runbooks.

Skills

Windows Server

Linux

AWS

Azure

Microsoft 365

Networking

Automation

IaC

Security hardening

Tools

Terraform

CloudFormation

Bicep

PowerShell

Python

Ansible

Job description

Service Stream is seeking a hands-on Systems Engineer (Infrastructure) to join our Enterprise Technology team in Australia. You will balance day-to-day operational support with security uplift initiatives and continuous improvement across Windows, Linux, cloud, and on-premises infrastructure.

You will manage AWS/Azure, Microsoft 365, networking, automation, and IaC, delivering secure, scalable environments while contributing to our SIP and DevOps practices.