João Pereira

João Pereira

CTO & EiR @ Build Up Labs
5.0
(4 reviews)
10+ years building startups | Mentor | Entrepreneur in Residence | Idea Validation | MVPs | AI | No-code
Portugal Active this week Usually responds in a few days

Services

$270 / month

Best suited for founders that want mentoring in the early building or idea stages of their products.

2 calls per month (60min/call)

Unlimited Q&A via chat

Expect responses in 24 hours or less

Hands-on support

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About

Over the past decade, I've been in the trenches with founders, turning napkin sketches into live products, first users into scaling businesses, and uncertainty into validation. As CTO and Entrepreneur in Residence at Build Up Labs in Lisbon, I spend my days doing what I love most: building products and helping entrepreneurs launch MVPs that actually ship, test assumptions with real users, and pivot or scale based on data, not hope.

I've seen firsthand what separates ideas that fade from products that fly, and it usually comes down to how quickly you can prototype, learn, and iterate. Whether through code, no-code tools, or AI, my mission is to help you find the fastest path from concept to customer feedback.

I mentor founders navigating their first launch, guide teams through the messy middle of product-market fit, and teach the frameworks that turn vision into traction. If you're building something new and want practical insights on prototyping and MVPs, I'm here to share what works and what doesn't.

What mentees say

5 out of 5 stars

Joao is experienced mentor and has clear vision on how to start small saas tech bussiness . I reached an initial goal with him.

Andrew

Andrew

Standard Plan • 1 month

5 out of 5 stars

JP has been a great mentor. I had been working on my project for a while but felt like I had hit a wall. I really needed someone to guide me through the areas I was uncertain about and to motivate me to keep pushing forward. JP was fantastic in helping me identify gaps I didn't know were there. He provided me with engaging activities and always gave me detailed, constructive feedback. Whenever a new challenge came up, he offered relevant resources to help me through it. He's incredibly approachable, and I always felt comfortable asking him any question. Thanks to JP, I'm now at a point where I'm exchanging conversations with people who could turn out to be some of the first users of my project. I highly recommend JP as a mentor!

Salvador Pio

Salvador Pio

Lite Plan • 1 month

Salvador Pio wrote 1 more review for the same mentorship

5 out of 5 stars

Salvador Pio

Salvador Pio

5 out of 5 stars

JP is a great mentor. He understood my requirements and provided me all the knowledge I needed to proceed on my own.

Chrys

Chrys

Standard Plan • 1 month

Skills

AI OpenAI RAG React-native debugging React.js React Native Open AI databases Wireframing product led growth no-code low-code validation llm MVP Java Script Typescript Mongo DB mongo Start up Startup Scale Scaling Vibe Vibe coding Gen AI Generative AI