Differentiating through usability testing

Timestamps:

15:11 - Keeping User Experience and feedback embedded in the product

27:09 - Sales strategy and product-driven growth

38:12 - AI Integration and the future of software

43:20 - Young Founder challenges in a traditional industry

Episode Description:

Stefan Wittwer is the founder and CEO of Infinity.swiss, an AI-first Swiss accounting product built to make bookkeeping radically simpler for founders and small businesses. Starting out as a teenage freelancer across design, web, and early software work, Stefan carried a strong design mindset into industries that rarely prioritize it, eventually moving from client work into building products full-time. He holds a Bachelors in Economics from University of Zurich. 

Stefan goes deep into product and UX obsession as a competitive advantage, including how Infinity differentiated in a crowded market by user-testing accounting tools with real tasks and designing workflows that hide complexity. He also talks about how to build in hard, regulated markets, where shipping “fast” still requires foundations, compliance, security architecture, and the discipline to sequence big bets. He also opens up about how to prioritize product decisions without becoming feature-chaos, from translating “feature requests” into underlying needs, to using a structured triage process and keeping sales aligned with what the product truly does - even if that makes selling harder in the short term.

Beyond the tactics, Stefan reflects on being a 24-year-old founder in a traditional industry and the extra work required to earn trust, while also seeing youth as an advantage because you’re “not blinded” by legacy assumptions. He offers a sharp take on “AI button hype” vs. real AI transformation, arguing that true AI products rethink workflows from the ground up - shifting humans into reviewers instead of operators. He then opens up about his operating philosophy: staying a “maker” (still writing code and pushing pixels), building a company that’s sustainable and profitable over time, and using the GTD (Getting Things Done) Framework to avoid burnout by keeping mental RAM clear through a trusted system.

The cover portrait was edited by⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.smartportrait.io⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠.

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