_RayMartín

Frontend Developer

4+

years of experience

10+

projects completed

Next.jsTypeScriptTailwind CSSReact NativeExpoPostgreSQLPrismaZod

Experiences

Freelance Developer

01/2021 - Current

Freelance

Front end Developer

11/2021 - 12/2022

Metary Platform

Data Analyst

06/2020 - 05/2021

ButlerScientific, S.L.

Front end Developer

05/2019 - 06/2020

Raúl López

Skills

Front-End UI/UX Design: Next React React Native iOS Android HTML CSS JavaScript TypeScript TailwindCSS Diseño Responsivo

Back-End Development: Node Expo PostgreSQL Prisma Supabase Docker SQL AdonisJS Express Firebase

Software: Vercel Github Expo App's Services Postman Insomnia Zapier Trello Jira Figma Dbngin Heroku Postico

Languages: Español Inglés Francés

Methodologies: Agile Scrum Kanban Lean Design Thinking

Career and education: Responsive Web Design JavaScript Algorithms and Data Structures Graduado en Turismo ULPGC

Modern UI/UX design with React, Next.js and Tailwind CSS

Server-side development with Node.js, Prisma and Supabase

Development with Next.js, React and Expo

Fully responsive web applications and websites

Database management with PostgreSQL, Prisma and Firebase

REST and GraphQL API integration

Version control with Git and GitHub

Automated deployment with Vercel and Expo

Clear and structured code documentation

Cloud services management (AWS, GCP, Vercel)

Mobile app development with React Native and Expo

Unit, integration and E2E testing

CI/CD automation with GitHub Actions

Web security and vulnerability protection

Web performance optimization and monitoring

WCAG-compliant accessible development

Analytics integration and monitoring

About me

Frontend developer with a solid full‑stack foundation and product mindset. I work with React, Next.js, TypeScript and Node.js to build accessible, fast and scalable interfaces.

Experience collaborating with companies and clients to deliver tailored solutions, integrating databases (PostgreSQL, Prisma), secure authentication and automated deployments.

Motivated by creating user‑centric experiences, focused on Core Web Vitals, best practices and maintainability.

Projects and works

4Pets Website

Animal management platform with web in Next 14/15 and mobile app (Expo/React Native). Robust auth and validation with PostgreSQL, Prisma and Zod. Real-time notifications, live lost-pet mode with geolocation, marketplace and professional dashboards.

4Pets Mobile App

iOS and Android app built with Expo and React Native. Access marketplace, veterinary services, real-time lost-pet alerts with live location and push notifications. Integrated with Next web and backend, auth via PostgreSQL/Prisma and validation with Zod.

Verónica Moreno's Website

Professional website for Verónica Moreno built with Next.js, TypeScript, React, and Tailwind CSS. Features a multilingual system and fully responsive design, enhancing user experience and SEO performance across all devices.

Abanzamed

Custom website for Abanzamed built with Next.js, TypeScript, React, Tailwind CSS, Supabase, and Prisma. Scalable, modern solution optimized for SEO and performance, perfect for healthcare companies seeking a professional digital presence.

Pandemic Game

Digital board game Pandemic developed with React.js, Redux, and Tailwind CSS. Delivers an interactive, real-time gaming experience with responsive design, perfect for strategy game enthusiasts online.

Metary Platform

Landing page for Metary, a metaverse management platform, developed with Next.js, React, and Tailwind CSS. Integrates a modern content management system for an innovative and SEO-optimized digital presence.

Ray Martín

Personal website developed with Next.js, React, and Tailwind CSS. Features a Firebase content management system, responsive design, and SEO optimization for personal branding.

Focus Crea

Corporate website developed with Next.js, React, TypeScript, and Tailwind CSS. Features email capture system and responsive design, optimized for SEO and client conversion.

Visa Nómada Digital

Informational website developed in Webflow with custom design and user-focused experience. SEO-optimized to capture leads and improve Google ranking for digital visa services.

Districiones Valeren

Custom ecommerce website built with Webflow, featuring online store integration and tailored design. Optimized for conversions and search engine visibility, ideal for businesses looking to sell online.

Asesorae

Webflow site with user integration and custom design. Optimized to attract new clients and enhance the digital presence of professional consultancies.

Arantxa & Jeannette Wedding

Wedding website developed with Next.js, Tailwind CSS, and TypeScript. Includes invitation and RSVP management, with responsive design and SEO optimization for special events.

Asociación Equilibrio

Website for Asociación Equilibrio built with React.js, Tailwind CSS, and Firebase. Features form management and email automation, optimized for SEO and accessibility.

Advance Web

Web tool developed in React, Redux, and Tailwind CSS to analyze and optimize website performance, accessibility, and SEO. Ideal for developers and businesses aiming to improve their online presence.

World of Warcraft Guild Website

Web platform for the World of Warcraft community, developed with React.js, Tailwind CSS, and Strapi. Integrates CMS, PostgreSQL database, and REST API, optimized for SEO and gaming user experience.

Buscador de inversión

Web application built with React, TypeScript, and Tailwind CSS to search, compare, and analyze crypto investment funds. Includes investment calculator and responsive design, SEO-optimized for financial tools.

Tokenomics Creator

Web tool developed in React, TypeScript, and Tailwind CSS to calculate and analyze token and cryptocurrency prices. Includes market cap analysis and SEO-optimized design.

Libraries

use-overflow-scroll

React

Custom hook that allows you to scroll an element when it overflows.