Strategic CTO-level governance for organisations modernising ageing infrastructure, unifying ICT decision-making, and aligning technology investment with measurable outcomes. On-demand. Structured. Accountable.
Many organisations have capable technical and operational teams but lack the enterprise-level technology governance to unify decision-making, guide architecture, and ensure ICT investment translates into measurable outcomes. A full-time CTO may not be justified. A traditional consultant won't stay long enough to matter.
I do not believe in creating permanent consulting dependencies. I believe in independent, objective governance that builds internal capability — and then gets out of the way.
Terry Sweetser, IEISI FounderCore systems and infrastructure have grown organically over years, creating silos increasingly misaligned with strategic priorities and whole-of-government directions.
Strong teams delivering day-to-day, but no one connecting technology choices to long-term business and regulatory outcomes. Architecture decisions happen in isolation.
Your previous technology leader has moved on. You need experienced governance now — not in six months when a permanent hire is onboarded and oriented.
You know the environment needs uplift — investment planning, architecture governance, platform consolidation — but lack a coherent strategy to sequence and execute.
CTOaaS (Fractional CTO) sits between ad-hoc consulting and a full-time executive hire. You get ongoing, structured technology governance that integrates with your existing team — building capability, not dependency.
Enterprise architecture review, standards development, and ongoing governance to ensure technology decisions are coherent, defensible, and aligned with organisational strategy.
Prioritisation frameworks for technology spend. Connecting ICT investment to measurable business and regulatory outcomes with clear sequencing and dependency mapping.
Practical, phased plans for migrating from legacy environments to contemporary platforms. Vendor evaluation, technology selection, and transition architecture.
Ongoing CTO-level participation in governance committees, executive briefings, and strategic planning. A trusted steward who understands your environment and its constraints.
Vendor-neutral evaluation of proposals, platform choices, and procurement options. No affiliations — advice based solely on your organisation's interests and the evidence.
Mentoring your technical leaders. Building the skills, frameworks, and confidence your team needs to sustain momentum after the engagement concludes.
No open-ended consulting cycles. Every CTOaaS engagement begins with defined objectives, timelines, and success metrics — and concludes with knowledge transfer and sustainable handover.
Regular CTO-level governance on a structured basis. For organisations that need consistent strategic input without embedding a full-time executive.
Intensive assessment and framework development. Audit the current environment, establish governance structures, and map the modernisation path forward.
Deeper involvement during major modernisation programs. Part-time CTO presence, integrated with your executive team, driving coordinated change.
Led by Terry Sweetser — BEng, MBA, MIEAust, GIA(Affiliated) — IEISI brings three decades of hands-on experience building, operating, and governing mission-critical internet infrastructure across the Asia-Pacific.
CTOaaS provides on-demand access to senior technology governance without the cost and commitment of a full-time executive hire. It delivers enterprise-level architecture oversight, investment planning, and technology strategy through a structured engagement with defined objectives and accountability.
Organisations with ageing or fragmented technology environments, those undergoing modernisation, government agencies needing to align ICT with strategic priorities and whole-of-government directions, and organisations between permanent CTO appointments. Particularly suited to government agencies, regulated industries, and infrastructure operators across Australia and the Asia-Pacific.
Traditional consulting produces reports. CTOaaS provides ongoing strategic governance — participating in executive decisions, guiding architecture choices, mentoring technical leaders, and ensuring technology investment delivers measurable outcomes. I build internal capability, not dependency. Every engagement has a clear exit strategy and knowledge transfer plan.
The CTOaaS engagement typically reports to your Chief Information Officer, Chief Digital Officer, or equivalent. It complements your internal governance rather than replacing it — providing strategic depth and contemporary technology perspective your existing team can draw on.
I work within Australian Government procurement frameworks and understand the compliance requirements of government and regulated industry environments. Specific clearance requirements can be discussed during scoping.
Brisbane, Queensland — available nationally and across the Asia-Pacific. Engagements combine on-site presence with remote advisory, scaled to what the work requires.
Start with a conversation. We'll discuss your technology environment, strategic priorities, and whether CTOaaS is the right model — no obligation, no pitch deck.