About me

I'm a Senior Frontend Engineer based in Barcelona, currently building product experiences at N26. Over 12 years, I've worked across fintech, marketplaces, and consulting — in the USA, EU, UK, and Latin America — shipping React and TypeScript applications at scale. My work spans frontend engineering, design systems, and testing culture, with additional depth in mobile (iOS/Swift) and DevOps practices from earlier roles. I care about accessible, well-tested UIs and collaborating with design, backend, and platform teams to deliver reliably in production.

Education

MSc., in Computer Science
U
UCAB - Universidad Católica Andrés Bello
2015 - 2018
CGPA - 8.5 / 10
BEng., System Engineering, Systems Engineer
U
UNEXPO - Universidad Nacional Experimental Politécnica Antonio José de Sucre
2008 - 2014
CGPA - 8.3 / 10

Professional Experience

Senior Frontend Engineer
N
N26 · Full-time
Jun 2025 - Present
Barcelona, Catalonia, Spain · Hybrid

Building customer-facing frontend experiences for a European digital bank using React and TypeScript. Contributing to component-driven development with Storybook, GraphQL integration, and a testing-first approach with Vitest and React Testing Library.

  • React
  • GraphQL
  • Vitest
  • TypeScript
  • Storybook
  • +2
Senior Frontend Engineer
W
Wallapop · Full-time
Nov 2022 - Jun 2025
Barcelona, Catalonia, Spain · Hybrid

Delivered frontend features for one of Europe's largest consumer marketplaces over 2+ years. Worked in a microservices environment with React, Next.js, and AWS — emphasizing test-driven development, web accessibility, and collaboration across product and platform teams.

  • Microservices
  • REST APIs
  • React
  • Storybook
  • Amazon Web Services (AWS)
  • +38
Senior Frontend Consultant
G
Grupo Ditech · Full-time
May 2021 - Nov 2022
Madrid, Community of Madrid, Spain · Remote

Senior frontend consultant delivering React and Next.js solutions for enterprise clients remotely from Madrid. Supported full-stack delivery with NestJS and Node.js where needed, and contributed to accessible, tested UI in agile squads.

  • Docker
  • Kanban
  • Microservices
  • NestJS
  • REST APIs
  • +45
Senior Frontend Engineer
M
Mercado Libre · Full-time
Oct 2020 - Jun 2021
Bogota, D.C., Capital District, Colombia · Hybrid

Built and shipped frontend capabilities for Latin America's largest e-commerce platform. Worked with React, microservices, and AWS in a high-scale product environment with strong CI/CD and observability practices.

  • Docker
  • AWS
  • Microservices
  • NestJS
  • REST APIs
  • +40
Senior Javascript Developer
B
Belatrix Software · Full-time
Sep 2019 - Sep 2020
Bogotá D.C. Area, Colombia · Hybrid

Combined Node.js development with DevOps engineering: serverless APIs, automated testing, and CI/CD pipelines (Jenkins, Docker, Kubernetes) for infrastructure and iOS build automation initiatives.

Senior Javascript Developer
G
Globant · Full-time
Sep 2019 - Sep 2020
Bogota, D.C., Capital District, Colombia · Hybrid

Mixed Node.js and DevOps role focused on infrastructure automation and concurrent iOS build systems. Built serverless APIs, maintained staging environments, and implemented CI/CD with Jenkins, Puppet, Consul, and Kubernetes.

Senior Full-Stack Developer
T
Teravision Technologies
Sep 2016 - Aug 2019
Bogotá D.C. Area, Colombia · On-site

Senior full-stack developer across multiple client projects: REST APIs, React UI components, relational databases, and AWS (EC2, RDS, S3, EKS). Integrated payments (Stripe, PayPal) and partnered with design, mobile, QA, and DevOps teams through full deployment cycles.

Full-Stack Developer (Freelance)
R
Ragzza Argentina · Part-time
Aug 2016 - Feb 2017
Córdoba, Argentina · Remote

Freelance full-stack delivery of a sports competition management platform using AngularJS and Laravel. Implemented layouts, APIs, automated tests, and WebPay payment integration in a small agile team.

Software Web Developer
K
Kentron · Full-time
May 2015 - Sep 2016
Caracas - Venezuela · On-site

Developed web applications with Laravel, Zend Framework, and Node.js; designed and maintained production databases (MySQL, PostgreSQL, SQL Server, Oracle, MongoDB) and integration services (SOAP/XML). Delivered products including e-learning and recruitment platforms.

Software Web Developer
B
Biodonto · Full-time
Aug 2014 - Apr 2015
Caracas - Venezuela · On-site

Built a medical resource order management system with Yii, jQuery, and MySQL — including views, stored procedures, and triggers for production healthcare workflows.

Software Web Developer
C
Consolidada de Ferrys C.A · Full-time
Jan 2014 - Jul 2014
Caracas - Venezuela · On-site

Developed an inventory system for multi-location resource management using Yii and PostgreSQL, including relational database design and GNU/Linux production configuration.

Technical Skills

Technologies and practices I use across product development, grouped by area.

Frontend

  • React
  • Angular
  • Next.js
  • JavaScript
  • TypeScript
  • HTML5
  • Sass
  • Tailwind CSS

Backend

  • Node.js
  • Deno
  • Express.js
  • NestJS
  • Python

Databases

  • MySQL
  • PostgreSQL
  • MongoDB
  • SQLite
  • TinyBase
  • Firebase

Cloud (AWS)

  • Amazon Web Services (AWS)

DevOps & Infrastructure

  • Docker
  • Kubernetes
  • Jenkins
  • CI/CD
  • Terraform
  • Cloudformation

Testing & Quality

  • Jest
  • Cypress
  • Playwright
  • Vitest
  • Testing Library
  • TDD

Methodologies

  • Scrum
  • Kanban
  • Agile Methodologies

Version Control

  • Git
  • GitHub
  • GitLab
  • Bitbucket
  • GitFlow

Mobile

  • iOS Development
  • iOS
  • Swift
  • UIKit
  • SwiftUI
  • CocoaPods

Courses & Certifications

Continuous learning in React, testing, cloud, and mobile development.

Testing Javascript
Testing Javascript
2024

Learn the smart, efficient way to test any JavaScript application

Epic React Pro
Epic React
2025

Master React 19 with Fully Updated TypeScript Code Focused Workshops

Epic React V1 Pro
Epic React
2024

Master React 18 with JavaScript Code Focused Workshops

The Complete React Native + Hooks Course
Udemy
2023

Understand React Native with Hooks, Context, and React Navigation

Docker Fundamentals
learn.cantrill.io
2025

Docker Fundamentals

Docker and Kubernetes: The Complete Guide
Udemy
2024

Build, test, and deploy Docker applications with Kubernetes while learning production-style development workflows

The Coding Interview Bootcamp: Algorithms + Data Structures
Udemy
2023

Ace your next Javascript coding interview by mastering data structures and algorithms

JavaScript Bible - JavaScript Bootcamp 2020
Udemy
2020
JavaScript: Understanding the Weird Parts
Udemy
Javascript for React
Udemy
Learn and understand NodeJS
Udemy
NestJS: The Complete Developer's Guide
Udemy
Node.js Fundamentals
Wormhole
RESTful Web Services with Node.js and Express
Pluralsight
AWS Well-Architected
AWS Training
Learn DevOps: Infrastructure Automation With Terraform
Udemy
Curso Maestro de Python 3: Aprende Desde Cero
Udemy
Curso de Accesibilidad Web
Platzi
Design Patterns in Swift
Udemy
Developing iOS Apps with Swift
Stanford University
Hacking with Swift
Hacking with Swift
Swift Fundamentals
Acámica
Flutter: Tu guía completa de desarrollo para IOS y Android
Udemy
JAVA EE
Bellinsoft
JAVA SE
Bellinsoft
English Course
CVA - Proidiomas