Fernando Ribeiro

Co-founder & CTO, Umber Security - developer tools · community · product

Umber Security

São Paulo, Brazil · BRT (UTC-3)

10+ years experience

Universidad de Buenos Aires

English, Portuguese

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Messaging unavailable

Overview

Founder of Umber Security (developer tooling). 10 years of building before that. Took Umber Security from zero to $8 million ARR. Grew the team to 81 people across 4 countries. Before that: Upland Solutions and Stone. Most at home with developer tools and Rust. I tinker with 3D printers.

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Skills

developer toolsRustproductopen sourcecommunity

HiringHiring for a role

closes in 3 months

Umber Security is hiring 5 founding engineers in São Paulo

Role: Founding engineer
Level: Senior
Type: Full-time
Work mode: On-site
Compensation: $138k-$202k
Team: Founding team, 11 people
Start: As soon as possible
Must have: Production experience with community Production experience with open source Comfort with ambiguity
Process: Intro call, technical deep dive, team chat

Comp R$24k-R$40k a month. One technical chat and a paid trial day. Message me with one thing you shipped that you're proud of.

São Paulo, Brazil · remote OKrustdeveloper toolsproduct

Open

Experience

Co-founder & CTO
Apr 2022 - Present
Umber Security · 4 yr 6 mo · Full-time · São Paulo, Brazil
- Grew the team to 50 people across 5 countries.
- Previously built and sold a small developer tooling company.
- Took Umber Security from zero to $11 million ARR.
Associate Partner
May 2020 - Apr 2022
Upland Solutions · 1 yr 11 mo · Full-time · São Paulo, Brazil
- Shipped 21 launches on the storage team without a rollback.
Associate Partner
Sep 2017 - May 2020
Stone · 2 yr 8 mo · Full-time · São Paulo, Brazil
- Mentored 11 engineers through their first promotion.
- Built the experimentation framework 18 product teams use to ship changes safely.
Consultant
Oct 2016 - Sep 2017
Bradesco · 11 mo · Full-time · São Paulo, Brazil
- Ran commercial diligence on 39 deals.
- Led a cost programme that saved a client $117 million.

Projects

Side project: a recipe search engine

2025

Built with open source and developer tools. 4396 people used it last year.

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Education

Universidad de Buenos Aires
Licenciatura, Business Administration
2011 - 2015

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