João Barros in

João Barros

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CTO at Árvore
📍 São Paulo, Brazil

João Barros is the CTO at Árvore, a tech executive with a history of co-founding startups, including Typper, which was acqui-hired by Árvore. He specializes in scaling technology for millions of users, with expertise in AI, cloud infrastructure, and data pipelines. Colleagues describe him as an inspirational, determined, and exceptional leader.

He is passionate about innovation and continuous learning, frequently participating in tech and startup events like Front in Floripa and the Startup Summit to connect with the community and explore new trends. João is driven to apply cutting-edge technology to solve real-world problems and improve engineering processes.

His company, Árvore, was recently chosen by OpenAI as an official case study for its launch in Brazil, highlighting his teams impactful work in applied AI.

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Experience
6 Years
Current Role
CTO
Job Level
Leadership
Location
São Paulo, Brazil
Personality Overview

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Communication Style
Decision Approach
Work Preference

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Priorities

Topics João cares about

AI in Education
Leads a team whose work with AI was featured as a case study by OpenAI. He frequently posts about applying AI to enhance products and engineering workflows at Árvore.
Startup Founder Journey
Co-founded and led Typper as CEO through a successful acqui-hire by his current company, Árvore. He also attended the Startup Summit 2023.
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Career

Work history

7-2025
CTO
Árvore
1-2025 - 7-2025
Tech Manager
Árvore
5-2024 - 1-2025
Tech Manager SRE
Árvore
1-2023 - 7-2025
Co Founder & CEO
Typper
2-2024 - 5-2024
Staff DevOps & SRE
Bankme.
In the press

Media appearances

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Education
2019 - 2020
Programador
Rocketseat
2019 - 2021
Administração
ETEC - Escola Técnica Estadual de São Paulo
Social presence
in
Behavioral profile

DISC profile (public)

DISC behavioral profile

Dominance, influence, steadiness, and calculativeness scores with guidance on how this person prefers to communicate and decide.

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