Clients

Real projects. Real results.

DocuCare

DocuCare

AI-powered, hands-free care documentation system.

Built the product from concept to validated MVP. Hands-on product & tech leadership, team setup, and flawless founder handover.

Janis Schumacher

Janis Schumacher

Founder in Residence @120 Ventures

March 2026

"Mario has an incredible gift for early stage venture building; he took us from an initial idea to a validated MVP within a few weeks."
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"I worked closely with Mario during the development of DocuCare, where he was the driving force behind both product and technology. Mario has an incredible gift for early stage venture building; he took us from an initial idea to a validated MVP within a few weeks. He knows exactly how to dig for the root cause of a problem and translate complex user feedback into a sharp, actionable technical roadmap. His ability to prioritize was substantial in winning our crucial first customers and creating the foundation for Product-Led Growth. He doesn't just ship features; he focuses on outcomes that move the numbers. What stood out most was how he set up the team for independence. He managed a flawless transition as I took over the leadership role, onboarding new members with total clarity and ensuring no momentum was lost. Mario is a 'no-bullshit' leader who understands both the code and the business. I can highly recommend him to any founder or board looking for a highly effective Fractional CPTO to accelerate their product."
miina

miina

Marketplace for on-demand caregiving services.

Led product strategy, identified bottlenecks, and helped scale the platform to first customers.

Andrej Bielicky

Andrej Bielicky

Founder in Residence @120 Ventures

February 2026

"He rolls up his sleeves and gets things moving. True to his "parachute in and build what runs" mindset."
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"I worked with Mario on a venture project building a marketplace for on-demand caregiving services, and he was a great advisor and real driving force as we pushed to scale. True to his "parachute in and build what runs" mindset, Mario quickly spotted the real bottlenecks and helped us focus on what actually mattered. He brings out-of-the-box thinking paired with very strong problem-solving skills, and he is highly pragmatic in how he approaches execution. What I appreciated most is that he does not stay at the conceptual level. He rolls up his sleeves and gets things moving. If you are looking for someone who will challenge your thinking and help you scale with clarity and speed, I can strongly recommend Mario."