ByGuerrero
enes
Open to work

Hi, I'm Rubén Guerrero 👋

Fullstack
Developer

I build web and mobile apps.

See portfolio
ByGuerrero logo
  • App Store
  • OWASP
  • Next.js
  • TypeScript
  • PostgreSQL
  • React Native
  • Expo

My own apps · web & mobile

Portfolio.

InTrack home screen showing the monthly goal and earnings for today and this week
Getting ready to launchApp StoreFree

InTrack

Log what you earn while you work and see how much you've made today and what to expect this pay period.

Who it's for

For people paid on commission, per service, in tips, or a base salary plus variable income.

Visit site

What it does

  • Shifts and one-tap logging
  • Catalog of services and commissions
  • Pay periods, base salary and goals
  • History, insights and CSV export
  • No account: your data stays on your phone

Stack

  • Expo
  • React Native
  • TypeScript
  • SQLite
  • Expo Router

My story

About me.

I'm from Monterrey. I went from medicine to software, and now I build my own products under ByGuerrero — it's where I put what I learn into practice and solve problems I see around me.

My stack
Next.jsTypeScriptPostgreSQL
Exploring

Learning these as I get into mobile.

React NativeExpo

  1. Medicine

    That's where I started. It's also where my interest in technology for healthcare comes from.

  2. The switch

    I decided to change careers and move into software.

  3. A project for Carrier

    I worked on a project for Carrier.

  4. Kia Motors · Cybersecurity

    I joined Kia Motors as a cybersecurity specialist.

  5. Digital transformation

    Later I moved to the digital transformation team.

  6. ByGuerrero

    Now I'm building my own products, still learning, and finding my direction in software.