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About

I’m André, a full-stack engineer with a background in business operations and data.

André Marinho smiling

A little context

I live in Salvador, Brazil, and have been building websites and web applications professionally since 2020. Before that, I worked in business operations, data, and consulting.

I work with TypeScript, React, Next.js, Node.js, and PostgreSQL, from interfaces and APIs to data models, tests, and deployment. I draw on my experience in operations and consulting to understand what a client needs, what a solution should achieve, and which technical work is worth doing.

Alongside client work, I build and maintain open-source projects like Turistar, a collaborative trip planner. This site is where I keep my projects and write about what I’m learning.

What I’ve been working on

  1. Full Stack Engineer · Freelance

    2023 – now

    Building full-stack products for clients, from architecture to deployment, independently and with teams.

  2. Web Developer · Duonorth Studio

    2020 – 2023

    Built websites, ecommerce stores, and custom integrations, working directly with clients from brief to launch.

  3. Business Consultant · Duonorth Studio

    2017 – 2020

    Founded a business, marketing, and BI consultancy, building dashboards and automations.

  4. Logistics Supervisor · Grupo Hemocat

    2015 – 2017

    Led 16 people across three logistics bases and built Power BI dashboards for stock and purchasing decisions.

Download résumé(PDF, English)

How I got here

At Hemocat, my manager spent about two hours a day copying numbers from the company’s system into a financial planning spreadsheet. I asked if I could try automating it. That became my first technical project: learning how the database worked and connecting it directly to Excel so she no longer had to copy the numbers by hand.

In logistics, I worked on stock availability and the data behind the dashboards. Later, consulting brought me into websites and integrations with clients’ existing tools. From 2020, Duonorth combined that work with marketing and business consulting. I implemented technical solutions and worked with specialists where needed. In July 2023, software product development became my main occupation.

I still spend time understanding how people work before deciding how the software should work. I wrote more about that path in I Was Building Software Before I Called It Code.

Away from the screen

I go to the beach regularly, read a lot, run, lift weights, and play classical guitar. I’m also learning to juggle, though I’m still a beginner.