Nicholas O'Sullivan
IT leader and cyber security professional in Townsville
I’m a Townsville-based IT professional with more than 15 years of experience across infrastructure, cloud platforms, education technology, cyber security, systems administration and practical technology leadership.
Professional focus
I focus on secure, explainable and maintainable technology: strengthening school technology foundations, improving cloud and identity governance, planning resilient infrastructure and helping organisations understand which technology risks and improvements matter most.
Technology leadership
Strategy, service delivery, infrastructure planning, documentation and practical risk management.
Cyber security
Identity, Microsoft 365, endpoint management, cloud governance and security-minded operations.
Infrastructure
Networks, servers, virtualisation, automation and maintainable systems for complex environments.
Recent articles
View all postsTownsville Computer Man is back — and yes, I started this in Year 12 with Notepad
Townsville Computer Man has relaunched with a repair-focused service. Here's the origin story: a 2009 business registered in my final year of school, and why it's back.
The CIA Triad: the foundation every cyber security decision sits on
A plain-English guide to the CIA Triad — confidentiality, integrity and availability — and how Australian organisations, from schools to banks, balance all three.
Why I built a free cyber security check for businesses and charities
Suburban Secure's new free check gives Australian businesses, charities and not-for-profits an instant, plain-English view of public email, domain and website security signals.
Why SFIA makes technical job advertisements clearer
How SFIA clarifies Queensland ICT jobs, including an NQ Cowboys Group IT Support Officer role in Townsville.