Photo of Éfrem Maranhão Filho

Hi, I’m Éfrem.

(Open-source) Product Builder · Professor of tech & AI for non-techies

I build AI agents and products at Plancorp, teach technology & GenAI to non-technical people at FGV‑EPPG — where I also serve as Special Advisor to the Director for AI Affairs — and run AI projects with students, built for the market, at Unieuro. Solid experience in Analytics, Big Data, GenAI, B2B and platforms. B.Sc. in Computer Science, M.Sc. and Ph.D. in Management focused on Analytics and Big Data.

Living guide

AI Without the Magic →

An interactive, 17-chapter guide to autonomy with AI: understand how machines learn and fail, think computationally, and build real solutions — following Lia, who wants to bring teenagers back to school.

 IA sem mágica →

O mesmo guia em português: entender, pensar e construir, com experimentos interativos, a jornada da Lia e atividades prontas para a sala de aula.

Writing & Thoughts

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As the cost of expertise drops, what counts is the will to build Nov 13, 2026

Another nice conversation I’ve had lately — after Lenny’s post on how job openings in our field are doing — is about...

 I only pay for the SaaS I see value in, the rest I build Nov 11, 2026

Talking with Marcell Almeida, I said I didn’t subscribe to SaaS anymore, and he proved that wasn’t true. I kept thinking about...

 My BB Digital Week talk on experimentation with GenAI Oct 28, 2026

Since every company needs to be an “AI lab”, it was nice to stop and think about how experimentation has been changing...

 Product and UX have never mattered more Oct 27, 2026

Last week I was talking with someone who wants to get into product — I always think I’m a bad person for...

Previously

Ph.D. in Management (FGV) · M.Sc. in Management (UFRGS) · B.Sc. in Computer Science (UNICAP) — academic record on Lattes, full story on LinkedIn.