Hi, I'm Javier

A Developer with an eye for design and a builder’s mindset

I combine technical skills in React and Node.js with a strong background in architecture and real-world business logic.

Portfolio 3D Report

ReactJS

Node.js

Tailwind CSS

TypeScript

Next.js

GraphQL

I’ve been a front-end developer for several years, building apps in React, Tailwind, and TypeScript — both as part of a fintech team in the Netherlands and independently for clients and personal projects.

Before tech, I worked over 7 years as a real estate appraiser and earned my degree in architecture. That background sharpened my eye for structure, clarity, and user-first design.

Work Experience
  • HODL Funds, Rotterdam, NL

    Front End Developer, May 2022 - May 2025

    • Built a Crypto Trading SPA with React.js and TypeScript, optimized for desktop and mobile asset management.
    • Developed an interactive Financial Benchmarking Tool using charting libraries to support strategic trading decisions.
    • Delivered a Full Stack Email Signature Manager with React, Express, and Gmail API, used by 50+ employees.
    • Created a Marketing Analytics Dashboard using Node.js, Redis, and HubSpot API to track daily KPIs.
  • Fullstack Experience. From API integration to authentication and content management, I’ve built complete apps using Node.js and external services like MockAPI or Firebase.
  • Independent Projects. I’ve launched digital products, tools and ecommerce stores — always looking to test ideas and ship value.

Whether working in a team or solo, I care about clean code, great UX, and shipping fast. Currently based in the Netherlands, I collaborate and build with a global mindset.

Let’s work together

I’m open to be part of projects where I can bring value through design-focused front-end development and solid product thinking.