Senior Systems Administrator

What you’ll be doing

We are looking for a Senior Systems Administrator to deliver advanced operational support, escalation, and continuous improvement across customer and internal environments within Atturra Managed Services. You will play a key role in maintaining platform health, resolving complex issues, driving standardisation, and mentoring engineers, while ensuring services meet agreed SLAs and security standards.

This position works closely with Service Delivery Managers, project teams, and customer stakeholders to support technical outcomes across Microsoft server and workstation platforms, Microsoft 365, VMware/Hyper-V virtualisation, automation, and enterprise backup solutions (including Veeam and Commvault).

Technical Operations & Escalations

• Act as a senior escalation point for complex incidents, problems, and requests across multiple customer environments.


• Perform root cause analysis (RCA), implement permanent fixes, and reduce recurring issues through strong problem management.


• Maintain and uplift monitoring, alerting, patching, and operational health across managed services platforms.


• Participate in on-call/after-hours support per roster requirements (where applicable).

Microsoft Infrastructure & Endpoint Management

• Administer and optimise Microsoft Windows Server environments and core services (e.g. AD DS, DNS, DHCP, GPO, RDS, file services, IIS).


• Manage Windows 10/11 endpoint configuration, hardening, patching, and lifecycle activities.


• Support identity and access, including Active Directory and Entra ID (Azure AD), MFA, conditional access, and SSO where applicable.

Microsoft 365 Administration

• Administer Microsoft 365 services including Exchange Online, Teams, SharePoint Online, OneDrive, Entra ID, Intune/Endpoint Manager and Microsoft security features as relevant to customer environments.


• Support platform changes, migrations, improvements, and service optimisation initiatives.

Virtualisation & Platform Support

• Deploy, maintain, and troubleshoot virtual environments across VMware vSphere and Microsoft Hyper-V.


• Support storage concepts and platforms (SAN/NAS), capacity planning, and performance tuning.

Backup, Recovery & Resilience

• Administer enterprise backup and recovery solutions including Veeam and Commvault.


• Conduct backup health checks, restore testing, DR support, and recovery activities during incidents.


• Ensure backup approaches align with customer RPO/RTO requirements and MSP standards.

Automation & Continuous Improvement

• Create and maintain automation to improve service quality and reduce manual effort (PowerShell and Ansible strongly preferred).


• Develop and maintain SOPs, KB articles, and technical standards; ensure documentation quality and reusability.


• Identify service improvement opportunities and contribute to tool uplift and standardisation.

Leadership & Mentoring

• Provide technical guidance and uplift capability across the Managed Services engineering team.


• Mentor and support junior engineers/administrators, contributing to training pathways and knowledge maturity.


• Support the technical direction of the organisation by evaluating tools and proposing improvements.

Project Support & Transitions

• Support transition of solutions from Delivery to Operations, ensuring smooth handover and operational readiness.


• Assist onboarding of new managed services customers, including:
  
  
  
  • Liaising with project teams on onboarding requirements
  
  
  • Advising on integrating customer practices with Atturra standards
  
  
  • Validating operational support readiness and skills coverage
  
  
  • Quality assurance of documentation and handover artefacts
  
  
  • Advising on process and technical designs where required
  
  
  
  

Working Conditions

• Based ain Perth, onsite


• Permanent full time

What will make you successful in this role?

• Strong troubleshooting skills with the ability to validate and test completed solutions for usability and stability.


• Proven experience supporting Microsoft server and workstation environments in a multi-customer/MSP context.


• Strong Microsoft 365 administration skills (Exchange Online, Teams, SharePoint/OneDrive, Entra ID; Intune desirable).


• Strong virtualisation experience across VMware and Hyper-V.


• Demonstrated experience with backup and recovery platforms, including Veeam and Commvault.


• Automation mindset with strong scripting capability (PowerShell strongly preferred).


• Exceptional interpersonal and customer relationship skills; ability to communicate clearly with technical and non-technical stakeholders.


• Ability to take ownership, work autonomously, and manage competing priorities effectively in a service environment.


• Excellent documentation and change discipline; comfortable working within ITIL-aligned processes (incident/request/change/problem).


• Strong stakeholder management and vendor relationship skills; keeps abreast of new technologies.


• Strong MS Office skills, including Outlook, Word, Excel, Visio and Project.

Professional Certifications and/or expert knowledge in one or more of the following disciplines (highly regarded):

• Windows Server and core systems concepts including AD, GPO, DNS, DHCP, NTP etc.


• Microsoft 365 / Entra ID / Intune


• Virtualisation products and solutions (VMware / Hyper-V)


• Backup systems and solutions (Veeam / Commvault)


• Storage systems and solutions


• Cloud systems and solutions


• Security systems


• Networking systems and solutions

Why is this an exciting opportunity? 

Atturra is one of the fastest growing ASX-listed advisory and IT solutions companies in Australia, giving you a strong foundation to fulfil your career ambitions. 

We currently have 1300+ professionals working across Australia, New Zealand, Singapore, Hong Kong, and USA who are using innovation to lead the way.  

The Managed Services division of Atturra provides leading Hybrid IT, Private Cloud, and Connectivity services, backed by decades of industry experience. Our expertise, combined with the strength of our people, makes us one of the most complete and prominent “as-a-service” providers in the market.

What our people say: 

“Atturra has a great working environment and management are very supportive of their staff. We celebrate success and have fun while working hard.”

Why you’ll love working here

Culture of possibility 

At Atturra we embrace innovation within our teams, fostering an environment of possibility and growth. We believe in creating a supportive and welcoming culture, where everyone is encouraged to achieve success through collaboration, hard work and dedication.

A strong set of company values 

Our culture is reflected by our employees who demonstrate camaraderie, innovation, dedication, respect and excellence in everything they do. These traits have become integral to the way we do business and are the values we strive for. 

Valuable employee benefits 

• Career growth via succession planning, internal mobility programs, and mentorship opportunities.


• Ongoing investment in professional development through industry certifications.


• Employee benefits, recognition, and wellbeing platform.


• Mental health support through our Employee Assistance Program.


• Support for family and caring responsibilities, including paid parental leave.


• Employee referral program, with monetary incentives offered. 

Commitment to supporting Australia’s veterans  

Atturra is proud to be recognised as a Veteran Friendly Employer by the Department of Veterans Affairs’ Veteran Employment Commitment (VEC) and is committed to supporting Australia’s veteran community. We aim to enhance the employment experience for veterans by improving recruitment, support, retention, and leadership opportunities to ensure they have a meaningful and impactful career with us.   

Careers | Atturra

https://atturra.com/au-en/careers

Recruitment Agencies/Headhunters:

We got this covered. Our Talent Acquisition team is working on our hiring demands and will reach out should we need extra support. Atturra only accepts referrals from agencies on our official supplier list via Agency Portal. Agencies are required to go through our procurement process, have an approved fee agreement, and be invited to participate in hiring for a job opening by the Atturra Talent Acquisition team. Any profiles or referrals submitted outside of this process will be deemed invalid. We request that you do not contact Atturra employees outside of the Talent Acquisition team for any hiring-related queries. To become an official supplier, send an expression of interest via [email protected].  

Atturra is passionate about playing an active role in addressing the digital skills gap and being an advocate for diversity and Inclusion, and welcomes applications from all irrespective of their gender, LGBTQI identity, ethnicity, religion, physical ability, or age.