whoami
Rodrigo Barreto
cat role.txt
position: Full-Stack Developer & Eng Lead
stack: Ruby on Rails, Ruby, Node.js
company: Workwize
side_project: Founder @ Mentorflow
location: Porto, Portugal 🇵🇹
cert:
AWS Certified(2023)
cat summary.txt
In tech since 2011/2012, graduated in 2014. Started out as a Systems Analyst and have been a Full-Stack Developer since 2016. Still in love with Ruby.
cat bio.txt
I've worked with Node and Ruby on Rails over 10+ years of backend engineering. Lived and worked in the Netherlands for 6 years, now based in Porto, Portugal. I first came to Europe as a highly skilled migrant, and today I no longer need a visa to work anywhere in the EU. I write about software development and enjoy participating in workshops.
Outside of code: I love cooking and inventing recipes to share with friends.
cat hobbies.txt
When I'm not coding: training BJJ 🥋, reading 📚, or playing guitar 🎸
cat projects/mentorflow.md
Mentorflow// Founder & Eng Lead
It started to help my jiu-jitsu professor's academy, Alliance Porto, manage their students. Clients liked it and asked for more, so today it's a real business serving 5,000+ students a month across 20+ academies.
For a long time I built everything solo. Today, alongside good friends, we're a crew of 4 devs shipping it on weekends — the kind of side project you pour your heart into. In 2026 we only onboard new clients through referrals, and still the waitlist keeps growing organically, one client introducing the next.
// stack
cat experience.txt
Career
Laravel, Node, React, MySQL, Redis
Fast-growing global IT-asset-management scale-up with a 100+ engineer department.
Rails, Postgres, Redis
Led a team of 6 engineers at FNZ, a global wealth-management fintech with 6,000+ employees and $1.4B in revenue. Owned delivery, hiring and mentoring while staying hands-on in the code.
Rails, Node, React
Large-scale Dutch recruitment platform with a 100+ engineer department.
Open Source
ls ~/open-source/gems/
grape_openapi3
If you don't want to generate Swagger 2.0, convert 2.0 to OpenAPI 3.0, or depend on tests to write your docs, this gem, built for my own projects, generates OpenAPI 3.0 at runtime straight from your Grape entities. Keeps the code easier to read and the API easier to maintain. It reads your routes, params and entities natively (collision-free schema names, nested params, enum/format/example, and typed success and error responses) with zero runtime dependencies.
→ view sourcedry_params
Automatically generates Grape params or Rails strong params from Dry::Validation contracts. No more duplicating field definitions. Grape adapter is production-ready; Rails module coming soon.
→ view sourcecredit_device
My first gem - a Ruby client for credit verification services. Built to help my company verify business credit information, it became useful for other Dutch companies as well.
→ view sourceContact
cat ~/.contact
$ echo "Let's build something together"