Senior Infrastructure Engineer

William Buck, more than advisors: We understand that exceptional advice comes from passionate people who thrive in an environment where they feel empowered to shape outcomes. That's why at William Buck, we've created what we like to call the 'Goldilocks' model – a top ten performing business that's just the right size to ensure every employee has a tangible impact.

William Buck is the perfect place to start, grow or take your career to the next level. Be part of a dynamic team that prides itself on delivering advice that makes a difference.

Description of the role: We’re seeking a Senior Infrastructure Engineer to join our Technology team. This role is critical in maintaining and evolving our hybrid infrastructure, ensuring security, scalability, and performance across our systems.

What makes you ‘just right’:
10+ years of experience in IT infrastructure roles, preferably in financial or regulated industries.

Expert-level knowledge of Windows Server, Active Directory, Group Policy, and PowerShell scripting.

Strong experience with Microsoft 365, Azure, and Intune in hybrid environments.

Familiarity with Netskope, Darktrace, and other modern security platforms.

Solid understanding of networking fundamentals, firewalls, VPNs, and secure remote access.

Proven experience working within or supporting ISO 27001 or similar cybersecurity frameworks.

Excellent troubleshooting, documentation, and communication skills.

Ability to manage multiple priorities in a fast-paced, high-stakes environment.

Desired qualifications but not essential:
Microsoft certifications (e.g., AZ-104, MS-102, SC-300).

Experience with automation tools (e.g., Terraform, Ansible, Azure Automation).

Exposure to DevOps practices and CI/CD pipelines.

What your day might look like:
Design, implement, and maintain core infrastructure services including Windows Server, Active Directory, Group Policy, and DNS/DHCP.

Manage and optimize a hybrid Microsoft 365 environment, including Exchange Online, SharePoint, Teams, and Entra ID (Azure AD).

Administer and support Microsoft Intune for endpoint management and compliance.

Oversee Azure IaaS/PaaS resources, ensuring cost-effective and secure cloud operations.

Implement and manage Netskope for secure web gateway and cloud access security broker (CASB) functions.

Monitor and respond to threats using Darktrace and other SIEM/SOAR tools.

Contribute to the organization’s cybersecurity posture, aligning with ISO 27001 standards and internal policies.

Lead infrastructure projects, migrations, and upgrades with minimal disruption to business operations.

Provide mentorship to junior engineers and collaborate with cross-functional teams on IT initiatives.

Maintain documentation, runbooks, and disaster recovery procedures.

What makes us ‘just right’:
Flexible working to help you balance work and personal responsibilities.

Career enhancement and development opportunities.

Free company provided Salary Continuance insurance.

In-House Psychologist.

Extended EAP to support you and your eligible family members.

Bi-Monthly Colleague Lunch.

Dress for your day.

Social Club events.

Run Club.

Working in a vibrant and collegiate culture where your contribution is valued.

More about us:
William Buck is a leading network of Chartered Accountants and business advisors, established in 1895, with over 140 partners and 1,100 professional staff across 10 offices in Australia and New Zealand, focusing on deeply understanding clients’ needs and tailoring solutions that go beyond traditional accounting and advisory services.

If you want to join a company where friendships are forged and careers made, then come on over to a place that's delivering more than just advice.

Diversity, equity and inclusion statement:
William Buck is committed to creating an inclusive workplace where diverse perspectives are celebrated, and everyone feels valued.

Prior to the next step in the recruitment process, we welcome you to inform us confidentially if you may require any special accommodations in order to participate fully in our recruitment process

Australia
New South Wales
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