Adrian Knapp, Software Engineer

I grew up in the far south of Brazil, about 100 km from Uruguay, and started coding at 12. At 15 I was freelancing: company sites, online stores that I built from scratch, and quick fixes in other people's code. At 17, I was shipping code to Giorgio Armani's e-commerce.

At Tractian (YC W21), I led the development of Tractian Academy, which had 45,000 users in its first month. Every two weeks, about 15,000 people joined its live classes. I created the monorepo that later carried 7 of the company's sites, with more than 300,000 visitors a month, and the translation system that every site uses. I also built Traxios, an HTTP client that led to an open-source contribution to Axios (more than 80 million downloads a week).

At Wellhub, the benefits unicorn, I owned the pricing system for about 6 million members. I worked on annual subscriptions, from the technical plan to the launch. Annual plans reached 168,000 paid subscriptions, 20% of all new ones worldwide. I built Comms Hub, an email tool with Gemini that made my area's email work 13 times faster.

I adopt new AI tools early. At Wellhub I taught my team to use them, then helped the whole engineering group of my business unit do the same. I ran several trainings, including one-hour sessions for about 90 engineers.

Over the last few years I've built my own products on the side. I care most about the product: what people do in the app, where they get stuck, and why they come back. Salve and myfitplan are the two that people use most.