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I'm Călin, Senior Product Designer

Portrait sketch of Călin Dodițoiu

With 8+ years designing digital products and the websites that sell them, I use data-driven insights, user research, and systematic thinking to create experiences that convert and scale, from enterprise-level platforms to startup MVPs.

2020 - PRESENT // LEAD PRODUCT DESIGNER // WEB APP, MOBILE APP, WEBSITE

Medicai is a healthtech start-up building infrastructure for medical imaging. I joined in 2020 to help grow the MVP into a platform now used by 30,000 users and 70+ healthcare organizations.

I was in charge of leading design for the web and mobile apps, running user research with clinicians and patients, and building a design system that sped up delivery by 60%. On the growth side, I led website design and development efforts, expanding it to 30,000+ pages with a 3x rise in conversion rates.

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A screenshot of the Vatis Tech app, showing the transcript editor in light mode
A screenshot of the Vatis Tech app showing the Vatis AI assistant in action
A screenshot of the Vatis Tech app, showing the Files section
A screenshot of the Vatis Tech API Dashboard, showing the Audio Summary feature
A screenshot of the Vatis Tech API Dashboard, showing the Audio Intelligence feature

2023-2025 // DEsign CONSULTANT // WEB APP, WEBSITE

Vatis Tech is an AI transcription start-up. I partnered with them in 2023 to turn a technical tool built by developers into something approachable and easy to use.

I led all product and website design efforts, simplifying the transcript editor, improving onboarding, and clarifying the value proposition. This drove a 400% increase in MRR, boosted website-to-app conversion from 1% to 4%.

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2023 - 2024 // LEAD PRODUCT DESIGNER // MOBILE APP

Eupnoos is a digital health start-up developing AI-powered respiratory diagnostics.

I led design for the mobile app, enabling patients to run clinical-grade lung tests on a smartphone. Working with clinicians, researchers, and engineers, I designed testing flows, dashboards, and a cross-platform design system while ensuring medical accuracy and compliance

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