Best Fractional CTOs in Sydney

Sydney’s Best Fractional Chief Technology Officers & Interim CTOs

Sydney’s tech ecosystem has always been a powerhouse, but in 2025, the demand for Fractional CTOs is reshaping how startups, scaleups, and established enterprises operate. The city is buzzing with innovation—AI ventures, SaaS disruptors, fintech accelerators, health-tech solutions, and green-tech startups. All of them need one thing: experienced technical leadership without the overhead of a full-time executive hire. That’s where Fractional CTOs come in.

From guiding product roadmaps to building scalable engineering teams, Fractional CTOs in Sydney are filling critical gaps. They enable businesses to scale smarter, adopt cutting-edge tech, and stay competitive in the global market.

At Digital Reference, we believe in celebrating professionals who are not only experts in their craft but also radically authentic in how they engage with clients and communities. (If you’re curious about what we mean by radical authenticity, check out our approach).

Our Methodology for Curating This List of Sydney Fractional, Virtual, and Outsourced CTOs

📊 Extensive research into Sydney’s tech landscape

🏆 Evaluation of achievements across startups, scaleups, and enterprise projects

🤝 Consideration of unique approaches to leadership, team building, and innovation

🌍 Direct client and community impact

We also integrate insights from across industries—like operations professionals and talent ecosystems—to help contextualize what makes these leaders so effective.

Featured  Fractional CTOs Making Things Happen in Sydney

Below are our standout Fractional CTOs in Melbourne. All of them are great people making real impact.

Ken Armitt – Founder of Digital One Agency

LinkedIn | Website

Ken Armitt is the founder of Digital One Agency, a Sydney-based consultancy delivering outsourced and fractional CTO services to early-stage and scaling startups across Australia. With a product-first mindset, he helps founders align technology choices with business growth, ensuring scalability without unnecessary complexity.

About: Ken’s background spans over two decades across enterprise IT and startup environments, giving him a unique perspective on how to balance speed with long-term resilience. At Digital One, he specializes in guiding product lifecycles, from architecture and delivery cadence to team enablement and cloud adoption.

Why he stands out as a Fractional CTO:
Ken doesn’t simply provide high-level advice—he embeds himself alongside founders and teams, shaping both the strategy and the execution. His blend of hands-on technical depth and product-aligned leadership helps companies scale sustainably.

Notable contributions:

• 🚀 Embedding CTO thinking early in product development to accelerate time-to-market
• ☁️ Driving pragmatic adoption of cloud and DevOps practices
• 🌍 Supporting startups with lean methods while drawing on global enterprise experience

Ken is known for making technology leadership accessible—giving ambitious startups the clarity and execution power of a seasoned CTO without the full-time overhead.

Thomas Marrec 

LinkedIn 

Thomas Marrec is one of Sydney’s most recognizable names in the startup and scaleup community. As the founder of Found Community, he has created a unique ecosystem that blends technical strategy with community-driven growth. His career journey has been deeply tied to empowering early-stage founders to navigate not just tech challenges, but the cultural and strategic hurdles that come with building a business.

About: Thomas has worked across multiple industries, bringing clarity to chaotic early-stage product builds. He excels at helping founders align technical decisions with business outcomes, ensuring that technology isn’t just an enabler, but a driver of growth.

Why he stands out as a Fractional CTO:
Thomas is celebrated for his empathetic leadership style. He doesn’t just build systems—he builds confidence in teams, ensuring founders feel supported. His community-first mindset means that his work often extends beyond the companies he directly advises, rippling out to the wider Sydney startup ecosystem.

He’s especially known for:

💡 Helping non-technical founders validate MVPs

⚙️ Coaching teams on scaling infrastructure responsibly

🗣️ Bridging the gap between technical jargon and founder vision

Ilya Kuzovkin, PhD 

LinkedIn

With a PhD and a career steeped in machine learning, AI, and simulation technologies, Ilya Kuzovkin is the kind of Fractional CTO who thrives where deep tech meets practical business applications. His company, Imitation Machines, pushes the envelope of how AI can be applied to real-world challenges, from predictive modeling to advanced data simulations.

About: Ilya’s academic background gives him the edge in cutting-edge AI, but his consulting work demonstrates his talent for translating advanced research into business value.

Why he stands out as a Fractional CTO:
Ilya brings academic rigor into the commercial arena. Many startups struggle to turn AI research into usable, profitable solutions, but Ilya’s specialty is bridging that gap.

Highlights include:

📈 Building scalable AI systems that perform under pressure

🏦 Guiding health-tech and fintech firms through AI transformations

🎤 Contributing thought leadership in Sydney’s AI ethics discussions

His influence extends beyond individual projects—he’s a frequent speaker at industry events and helps position Sydney as a hub for ethical AI innovation.

Scott D – Founder of Software at Scale

LinkedIn | Website

Scott D is an engineer at heart, but his career has evolved into something much larger: a trusted Fractional CTO for businesses aiming to scale software teams and systems without breaking momentum. With his firm, Software at Scale, he focuses on building reliable, scalable systems for companies ready to grow fast.

About: Scott’s journey began as a developer, but his experience with scaling SaaS platforms gave him the insight to specialize in bridging early MVP chaos into enterprise-grade systems.

 Why he stands out as a Fractional CTO:
Scott is the go-to person when companies hit that critical inflection point where tech debt starts slowing growth. His hands-on yet strategic approach means he can dive into code when necessary but also step back to craft long-term architecture.

Notable contributions:

🔄 Leading successful platform migrations

🧩 Helping scaleups adopt microservices architectures

👨‍👩‍👧 Advocating for developer-first cultures in Sydney

He’s known for keeping things pragmatic—always ensuring technology supports the business vision rather than getting lost in overengineering.

Thiago L. 

LinkedIn

Thiago L. brings a unique mix of AI expertise, startup grit, and global perspective. As co-founder of Revivr AI, he has been instrumental in building solutions that leverage artificial intelligence to solve challenges in healthcare and performance optimization.

About: With roots in both engineering and entrepreneurship, Thiago thrives at the intersection of product vision and AI technology.

Why he stands out as a Fractional CTO:
Thiago’s leadership style is deeply collaborative—he works side-by-side with founders and technical teams to push forward ambitious AI-driven products.

Career highlights:

🩺 Developing Revivr AI’s health performance platforms

📊 Supporting startups on data-driven business models

🎓 Mentoring AI founders in Sydney’s incubators

His ability to align AI innovation with practical business needs makes him one of the most future-facing CTOs on this list.

James Crowley – Co-Founder of Atomitz

LinkedIn | Website

James Crowley has been a force in Sydney’s software consultancy and CTO-as-a-service space for years. Through his company, Atomitz, he has built a reputation for guiding businesses through periods of rapid digital transformation.

About: James’s career spans software development, technical leadership, and advisory roles. He is adept at helping companies balance innovation with operational stability.

Why he stands out as a Fractional CTO:
James has a knack for unlocking growth through technical clarity. He’s often brought in to stabilize growing teams or to design scalable architectures that align with business expansion.

Standout areas:

🔧 Expertise in digital product transformation

👨‍🏫 Hands-on mentorship for engineering leaders

🌐 Advocacy for tech education and training in Sydney

James isn’t just a technologist—he’s also a community builder, contributing to Sydney’s broader startup mentorship ecosystem.

Wrapping Up: Sydney’s Fractional CTO Powerhouse

Sydney’s business landscape is being redefined by these Fractional CTOs, who are blending technical mastery, strategic insight, and authentic leadership. Whether it’s AI, SaaS, fintech, or digital transformation, these professionals are ensuring that local businesses don’t just keep up with global trends—they lead.

For founders and executives, engaging a Fractional CTO isn’t just a cost-effective choice—it’s a way to inject high-level strategy and execution without delay. And for Sydney, it’s proof that the city is home to some of the world’s most forward-thinking tech leaders.

At Digital Reference, we continue to document and celebrate professionals like these—people who embody radical authenticity and drive meaningful impact. If you’d like to dive deeper, explore insights for Fractional CTOs in Jacksonville Making Things Happen or discover new strategies for finance leaders.

Resources You Might Like from Digital Reference

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📍 Find Local Fractional CTOs & Chief Technology Officers Near Me
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Whether you’re a startup founder looking for guidance, or a scaleup ready for your next leap, one thing is certain: Sydney’s tech community is stronger than ever, powered by Fractional CTOs who are truly making things happen in 2025.

Spotlights of Part-time & Fractional CTOs

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Detroit - Virtual CTOs & Outsourced CTO Services
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Houston - Virtual CTOs & Outsourced CTO Services
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Jacksonville - Virtual CTOs & Outsourced CTO Services
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Minneapolis - Virtual CTOs & Outsourced CTO Services
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Nashville - Virtual CTOs & Outsourced CTO Services
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Portland - Virtual CTOs & Outsourced CTO Services
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San Diego - Virtual CTOs & Outsourced CTO Services
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The fractional CTO model is perfect for founders in the Sydney area—offering strategic support without slowing the pace. And with more seasoned operators choosing the Sydney area as their home, the talent pool here is growing stronger by the year.

Want to build smarter, scale faster, and lead with clarity?
Start with a fractional CTO who’s done it before.‍