João Barros

Judge
DISC Type : Dc

CTO at Árvore

São Paulo, Brazil

Overview

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.

Personality Overview

Quality Focused

Demanding

Objective Thinker

They are less concerned about the product and more about its potential impact.  They respond well to strong and respectful communication. They put a lot of effort into ensuring personal success.

Topics They Care 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.
Scalable Cloud Architecture
His experience focuses on building data pipelines and scalable infrastructure on AWS for millions of users, with a background in SRE and a certification in Kubernetes.

Media Appearances

João has no verified media appearances

Work History

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

Education

2019 - 2020
Programador from Rocketseat
2019 - 2021
Administração from ETEC - Escola Técnica Estadual de São Paulo

More Information

Social Presence :

Prographics :

Exp : 6 Location : São Paulo, Brazil Job Level : Leadership Designation : CTO at Árvore
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Insights For Selling To João

During A Call Or A Meeting

DO's

  • When negotiating terms, help them build an impression that they are the ones calling the shots
  • Refer to testimonials from well-known industry leaders
  • Use phrases like ‘it’s your decision’, ‘strategic impact’ etc.

DONT's

  • Don’t take too much time in sending them information if they ask for any
  • Do not back off when challenged, respond with a confident, objective answer instead
  • Don’t be in a rush to invite them for a social meet and greet

When Cold Calling

When Writing An Email

While Negotiating & Closing

    The secret to closing fast with João is

  • Confidence in impact is paramount to them, followed by a sense of achievement and ROI.
  • Will you ever get a clear answer from João

  • If they are not convinced, they will have no hesitation in telling you the same.

Insights For Deal Planning

    How fast (or slow) will João move?

  • If convinced, they can reach decisions quite fast.
  • Can João take some risk or not?

  • They do not shy away from taking risks, but can be quite binary about them.

You And João

Personality Compatibility


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