MC.
Available for opportunities

Milena Cabrera Patiño

Software Engineer

I build scalable, high-performance web and hybrid apps with React, Next.js & TypeScript.

Popayán, Cauca · Colombia
View my workRésumé
Milena Cabrera Patiño
Years of experience
5+Years of experience
Repositories shipped
33+Repositories shipped
LATAM markets (CL · BR · AR)
3LATAM markets (CL · BR · AR)
Domains: fintech · edu · mobility
3Domains: fintech · edu · mobility
01

About

Frontend Engineer with 5+ years of experience delivering high-quality web and hybrid applications using React.js, JavaScript, and modern development tooling. Adept at creating scalable, maintainable solutions for fintech, education, and mobility. Proven ability to work across multiple repositories and platforms, delivering cross-functional features with strong attention to performance and UX. Experienced in collaborating with multidisciplinary teams and driving frontend strategy for complex ecosystems.

Education

B.Sc. Electronic & Telecommunications Engineering

Universidad del Cauca

Languages
  • SpanishNative
  • EnglishProfessional working
02

Experience

  1. Software Engineer · Mercado Libre — Mercado Pago

    2023 — 2025

    Remote

    • Led frontend development of React.js flows for Mercado Pago POS devices (datafónos), with interfaces deployed as embedded WebViews in Android using WebKit.
    • Delivered production-ready features across 33+ repositories, including Bluetooth pairing, amount authorization, user confirmation, and payment capture.
    • Built dynamic, cross-platform UIs for real-time device communication using React.js and Mercado Pago APIs.
    • Supported product expansion from Chile to Brazil and Argentina through localized UI/UX and platform adaptability.
    • Created hardware-in-the-loop testing environments with QA and DevOps for robust validation.

  2. Middle Software Developer · Celerik

    2022 — 2023

    Remote

    • Built a PM assistant chat interface using Microsoft Power Apps and PCF (PowerApps Component Framework) with custom React.js components.
    • Contributed to the Abacus financial app: created forms, implemented validations, and integrated Axios for RESTful services.
    • Delivered education-focused React.js and React Native features for a Texas-based museum application.
    • Handled testing and debugging of a language-learning mobile app.
    • Developed a public transport route interface for FlowOS using Redux and React.js.
    • Led the UI development of the Wallie app-store platform using Next.js and Tailwind CSS.

  3. Frontend Developer · Upwork — Freelance

    2020 — 2021

    Remote

    • Built modular section components for a Landing Page Generator.
    • Performed code reviews across GitHub and GitLab.
    • Authored Storybook documentation for an open-source UI library.

  4. Jr. Frontend Developer · OmniLatam

    2019 — 2020

    Bogotá

    • Developed Angular-based UI components integrated with backend APIs.
    • Reviewed and optimized code quality; mentored new developers.
    • Enhanced feature robustness through bug resolution and UI refinement.

  5. Full-stack Web Developer · Fundación Universitaria de Popayán

    2018 — 2019

    Popayán

    • Built a desktop application for teachers using Electron and Node.js.
    • Developed and integrated custom API solutions for a Node.js backend.
    • Created smooth animations and transitions for an enhanced user experience with CSS and React.
    • Managed the development lifecycle and gathered requirements for product features.

  6. Frontend Developer · Appsus — Inventory Software

    2017 — 2018

    Remote

    • Developed a JavaScript-based point-of-sale application for restaurants.
    • Created components using a proprietary JavaScript framework and React.

  7. Professor · Universidad Remington

    2016 — 2017

    Popayán

    • Taught Requirements Engineering Process, Application Architecture Planning, and Web Application Development.
03

Skills

Languages & Frameworks

  • JavaScript (ES6+)
  • TypeScript
  • React.js
  • Redux / Redux Toolkit
  • Next.js
  • React Native
  • Node.js

UI & Styling

  • HTML5
  • CSS3
  • Sass
  • Less
  • Tailwind CSS
  • MUI
  • CSS-in-JS

Build & Tools

  • Webpack
  • Babel
  • Vite
  • Git
  • GitHub
  • GitLab
  • Bitbucket
  • Azure DevOps
  • Gerrit

Testing

  • Jest
  • React Testing Library
  • Storybook

Project Management

  • Jira
  • Trello
  • Azure Boards
  • Agile (Scrum / Kanban)

Design & Prototyping

  • Figma
  • Sketch

Other

  • PCF (PowerApps)
  • SSR
  • REST API integration
  • Bluetooth / NFC POS
  • Performance profiling
  • Security best practices
04

Selected Work

Highlights from production work across fintech, education and mobility. Several products are proprietary, so these are summaries rather than live links.

Mercado Pago POS (datafónos)

React.js WebView flows running on Android payment terminals — Bluetooth pairing, amount authorization and payment capture — scaled across Chile, Brazil and Argentina.

  • React
  • WebView
  • Android
  • Fintech

Wallie App Store

Led UI development of an app-store platform with a fast, modern interface.

  • Next.js
  • Tailwind CSS
  • UI

FlowOS — Transit Routes

Public-transport route interface with real-time state, built for a mobility platform.

  • React
  • Redux
  • Mobility

Museum Experience App

Education-focused features for a Texas-based museum, delivered for web and mobile.

  • React
  • React Native
  • Education

Abacus — Finance

Forms, validations and RESTful integrations for a financial application.

  • React
  • Axios
  • Forms

Teachers Desktop App

Cross-platform desktop application for teachers, backed by a custom Node.js API.

  • Electron
  • Node.js
  • Desktop

05 · Contact

Let's build something great

Open to frontend and full-stack opportunities. The fastest way to reach me is email.

mcabrerapatino@gmail.com

Popayán, Cauca · Colombia