Job Description
About Emesent
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Emesent is a Brisbane-based world leader in autonomous LiDAR mapping and drone autonomy. Our flagship product, Hovermap, delivers autonomous LiDAR mapping in GPS-denied environments for the Mining and Defence sectors. Our newly launched GX1 brings high-performance handheld LiDAR to surveying and the built setting. Behind both sits a pipeline of future hardware products and a team that takes hard engineering problems from concept to the field.
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Role Description
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The System Administrator reports to the Director of IT & AI and sits within a small IT team. The role is responsible for the design, operation, security, and continuous improvement of the organisation's corporate IT environment. This spans on-premises and cloud infrastructure, Microsoft and Linux platforms, identity and access management, SaaS integrations, endpoint fleet management, and internal engineering compute clusters.
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The role is both hands-on and enabling, keeping day-to-day operations running reliably while helping engineering and business teams adopt new technologies, tools, and workflows safely. The successful candidate will act as a technical escalation point (L2/L3) for the service desk and will contribute to governance, disaster recovery, and cybersecurity initiatives across the business.
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Key Responsibilities:
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Infrastructure & Operations
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Administer Windows Server environments, including Group Policy, DNS, DHCP, file and certificate services.
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Provide L2/L3 operational support, resolving escalations from the Service Desk and complex infrastructure incidents.
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Mentor and support L1/L2 Service Desk staff, building their technical capability.
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Prioritise tickets in the infrastructure queue, ensuring incidents and requests are resolved within agreed SLAs.
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Administer Microsoft 365, including Exchange, Teams, SharePoint, and Intune.
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Manage endpoint provisioning and lifecycle for a globally distributed workforce across Windows, macOS, and Linux.
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Administer VMware and Linux compute clusters and AWS environments, including capacity planning and performance management.
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Maintain VPN infrastructure for remote and on-site personnel.
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Administer network configuration for Brisbane HQ and remote sites (switching, routing, firewalls, wireless).




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Own DR and business continuity initiatives, including backups, restore testing, and infrastructure resilience.
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Enable teams to safely adopt new technologies and workflows, including internally developed tools.
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Support the secure adoption and governance of AI tools and services across the business, including access controls, data protection, and integration with existing platforms.
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Identity & Access Management
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Maintain Active Directory and Microsoft Entra ID, SSO, MFA, Conditional Access, and hybrid identity sync.
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Improve access management through Entra ID integrations with SaaS platforms and AWS (SAML/OIDC/SCIM), including automated provisioning and deprovisioning.
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Implement least-privilege RBAC and manage the
joiner/mover/leaver
process; conduct periodic access reviews.
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Cybersecurity
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Enforce endpoint security policies across Windows, macOS, and Linux using Intune, Defender, and equivalent tooling.
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Own patch management and vulnerability management across servers, endpoints, and network devices.
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Maintain firewalls, email security (DMARC/DKIM/SPF), web filtering, and endpoint detection and response.
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Monitor security alerts, investigate and contain incidents, and support penetration test remediation.
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Harden systems against recognised baselines (CIS, Microsoft baselines, ASD Essential Eight).
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Support cybersecurity governance, risk, and compliance initiatives.
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Governance
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Maintain documentation, network topology, and the asset register.
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Operate and improve change management, including risk assessment, approvals, and rollback planning.
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Contribute to IT policies and standards and support audits and compliance.
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Track licensing compliance, maintain the IT risk register, and contribute to DR/BC planning (RTO/RPO, DR exercises).
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Contribute to and uphold the organisation's AI policy.
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Skills & Experience
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5+ years in systems administration within a mixed Windows/Linux enterprise environment.
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Windows Server, Active Directory, and Microsoft Entra ID, including Group Policy, DNS/DHCP, certificate services, Conditional Access, MFA, and hybrid identity.
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Microsoft 365: Exchange Online, Teams, SharePoint, Intune.
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Linux administration (Ubuntu and/or RHEL-based).
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VMware vSphere/ESXi and AWS, including cluster and capacity management.
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Networking and network security: TCP/IP, VLANs, routing, switching, firewalls, enterprise Wi‐Fi, VPN.
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Scripting and automation in PowerShell, Bash, or Python.
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Clear written and verbal communication, including explaining technical issues and risks to non‐technical stakeholders.
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Strong documentation discipline: runbooks, network diagrams, change records.
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Strong understanding of AI tools and their security, privacy, and data governance implications.
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Desirable
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Relevant certifications, such as Microsoft (AZ-104, SC-300), AWS Solutions Architect, CCNA, or RHCSA.
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Experience applying security baselines (CIS, Microsoft, ASD Essential Eight) in a compliance or audit context.
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Experience supporting engineering or HPC compute environments.
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The Perks
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9‐day fortnight — every second Friday off.
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Employee Share Option Plan (ESOP) — share inEmesent'ssuccess.
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Genuine learning and development opportunities, including LinkedIn Learning.
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Flexible working arrangements and a casual dress code.
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Employee Assistance Program andQoctoronline telehealth.
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A full day of leave each year for your work anniversary.
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Who we are
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Emesent builds LiDAR mapping and autonomy technology for the world's most challenging environments. Founded in **** from Australia's CSIRO, our products —Hovermap, GX1, and the Aura software platform — capture spatial data in hazardous, GPS-denied, and hard‐to‐reach places for mining, survey, and infrastructure customers worldwide. With multiple product lines spanning hardware, desktop, and cloud,we'reat an inflection point — and this role sits at the technical heart of it.

📌 System Administrator (Queensland)
🏢 Emesent
📍 Queensland