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Matthias Isler

  • GitHub
  • LinkedIn

Fractional CTO

I partner with founders to build, scale, and operate AI-first technology ventures – backed by two decades of real-world experience as entrepreneur and CTO.

AI only matters when it creates measurable advantage. I put it where it belongs – in products, workflows, and decisions. When things go wrong, I turn projects around and re-establish momentum. Bringing together the perspectives of engineer, CTO, and founder, my role is to help save time and prevent costly mistakes. Founders don’t need more theory – they need results.

The right people make the difference. I build high-performing teams, put in workflows that scale without slowing growth, and base every decision on real-world experience. Pragmatic and hands-on, always with ROI in mind from day one. Founders trust me to own the technical side so they can stay focused on growing the business with confidence.

Software Engineering
for Business Impact

Trusted by Entrepreneurs

“As a growth company, we are constantly faced with new challenges. Matthias' pragmatic, selective and goal-oriented support helps us to tackle these challenges efficiently and effectively. We can rely on his comprehensive experience and rest assured, that we are doing the right thing. I appreciate the straightforward cooperation a lot.”

Miro Hegnauer

CEO and Founder of Konova

Impact Oriented Partnership

Direct

Clear guidance as part of your core team.

Efficient

Precise input where it has the biggest impact.

Authentic

Grounded in real-world experience.

Hands-on

Working side by side to build and scale.

Why Work With Me?

Time is the one resource you can’t replace. Overengineered architecture, vacant key roles, or unrealistic strategies can set a company back years. Small mistakes compound quickly, creating technical debt and slowing growth when speed matters most. I bring the perspective of someone who has built and scaled companies, written the code, and led teams through growth and restructurings. That experience helps prevent problems before they appear and keeps the focus on building a business that lasts.

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