Speed is a feature.
Every 100 ms is a decision the customer didn't have to wait for. Performance budgets are part of the spec, not a cleanup task.
My story
I'm Erick — a Brazilian developer who found his craft where design, code and revenue meet. This is how I got here, and what I bring to a team.
ER
The path
Five chapters, one thread: shipping things that work.
2022
Foundations
Frontend craft first: HTML, CSS, JavaScript, WordPress and Liquid. The earliest lesson stuck: a beautiful page is worthless if it loads slowly or confuses the person trying to buy.
2023
Owning the whole stack
Buyiver
My first end-to-end build — WooCommerce, PHP, subscriptions, Stripe and a full platform migration. Being the only engineer taught me to scope ruthlessly, prioritize and ship.
2024
Shopify, at speed
Assence · Sunner · Peaked
Leading development for several DTC brands at once: PDPs, bundle systems, cart drawers and campaign pages under real launch deadlines.
2025
Testing at scale
ConversionWise
Conversion engineering across a portfolio of brands. Pattern recognition compounded fast — what wins on one store becomes the hypothesis for the next.
2026
Owning outcomes
Product & growth
Partnering with brands on Shopify, CRO and product strategy — and widening the stack into backend services and paid acquisition, so I own results, not just tickets.
“The best interface is the one the customer never has to think about.”
What I believe
Four rules I build by.
Test, don't argue.
Opinions are hypotheses. I'd rather ship a clean A/B test than win a meeting.
Clarity converts.
The best interface is the one the customer never has to think about. Hierarchy before decoration.
Own the outcome.
Code is done when the metric moves, the tracking is right and the next person can maintain it.
Beyond the code
A developer who speaks marketing and product.
Running and instrumenting paid traffic taught me to read a page the way a media buyer does: does it keep the ad's promise, and can we prove it?
Working as a product manager on my own projects taught me to scope, write things down and say no — so teams get fewer surprises and faster releases.
Pick your lens
Hiring for a specific role? Start where you need me.
01
Frontend
Interfaces that sell.
CRO development on Shopify, WordPress and Webflow. Product UIs in React and Next.js.
- Shopify
- WordPress
- Webflow
- React
- Next.js
02
Backend
Systems that hold under launch traffic.
APIs, integrations and data in Node.js, Express, Python, PHP, Java and Ruby.
- Node.js
- Express
- Python
- PHP
- Java
- Ruby
03
Full-Stack
From ad click to database row.
One owner for the whole funnel: paid traffic, landing page, storefront, API and analytics.
- CRO
- Paid traffic
- APIs
- Analytics
Open to full-time & contract roles
Want the next chapter to be at your company?
Remote · UTC−3, overlaps US & EU hours