Technology should serve humanity.

I’m Joskua — a full-stack developer who builds clean, scalable web apps, automations, and digital tools with purpose.

About Me

Hi, I’m Joskua — a freelance developer based in Mexico City. I believe that technology should make life easier, smarter, and more human. Over the past 5+ years, I’ve worked with teams across the US, Mexico, Central America and Asia, building real-world systems that power loyalty programs, optimize business processes, and bring ideas to life.

I’ve led development teams, launched cross-platform apps, and integrated solutions with POS systems and payment platforms — always with a focus on clean code, usability, and impact.

Languages I speak fluently: Spanish, English, French

What I Do

I help founders, businesses, and teams turn ideas into working software.

Custom web app development (React, Flutter, .NET)

Python scripting & automation

UI/UX prototyping (Figma)

Web scraping & data collection

Dashboard development (SQL, pandas)

API integration & backend logic

Tech Stack

Favorites

React

Flutter

Python

REST APIs

Figma

SQL

Also Experienced In

.NET

WordPress

Wix

GitLab

Firebase

Google Maps API

Excel Macros

Pandas

Flask

Django

Projects & Experience

QuantumGo App

A Flutter mobile app launched in multiple countries for technician scheduling.

Nexus Clover App

An Android app for POS loyalty integration, built with the Clover SDK and custom backend logic.

Fiserv Integrations

Handled hosted payment and card-present transaction APIs for a Fortune 500 fintech company.

Automation & Internal Tools

Built dashboards, web scrapers, and internal tools to streamline operations across the Americas.

Results That Matter

350%

increase in email system performance

50%

faster backend query times

39+

physical store locations scaled with loyalty

↓ 26%

incident ticket rate from 34% to 26%

3 Countries

successful app launches (US, MX, CR)

Let’s Work Together

Have a project in mind? Let’s talk.