Translate to Spanish
~/portfolio $ whoami

> Cristian
> Carralero

Frontend • Backend • Web3
Full Stack Developer specialized in modern technologies and blockchain

TypeScript React Solidity Rust Next.js PostgreSQL Tailwind CSS

// About me

With 4 years of experience in software engineering, I've honed a unique approach that combines agile methodologies with cutting-edge technologies. My specialty is creating solutions that not only work but also scale and generate real business value

Puerto Padre, Las Tunas, Cuba
GMT-5 (Flexible)

// Services

Full Stack Development

Complete web applications from frontend to database
  • React/Next.js & TypeScript

  • Node.js/Fastify APIs

  • PostgreSQL & Drizzle ORM

  • Tailwind CSS & UI/UX

  • Cloudflare Workers

  • Testing & CI/CD

  • SEO & Performance

  • Responsive Design

Smart Contracts & Web3

Secure smart contracts and decentralized applications
  • Solidity & Vyper

  • Security audits

  • Comprehensive testing

  • Deployment & Verification

  • Viem & Wagmi integration

  • Rainbowkit wallets

  • IPFS & decentralization

  • Gas optimization

Consulting & Mentoring

Architecture, optimization, and best practices for your team
  • Code Review & Refactoring

  • Software architecture

  • Technical mentoring

  • DevOps & GitHub Actions

  • Performance optimization

  • Best practices

  • Team leadership

  • Technical documentation

// Tech Stack

Frontend Development

Modern interfaces and exceptional user experiences
React TypeScript Tailwind CSS React Router HTML5 & SEO Next.js

Backend & Database

Robust APIs and efficient data management
Node.js Fastify PostgreSQL Drizzle ORM Cloudflare Workers SQL

Web3 & Blockchain

Smart contracts and decentralized applications
Solidity Vyper Viem & Wagmi Rainbowkit IPFS

Tools & Languages

Development tools and additional languages
Git & GitHub Rust Kotlin GitHub Actions VsCode Arch Linux

// Projects

Force4G

Lightweight application to force 4G on your phone, taking up less than 250KB
Kotlin Mobile Dev

Mirage

Simple, lightweight, and customizable web client for the Matrix protocol with a clean and user-friendly interface
TypeScript React SCSS/SASS Matrix JS SDK Vite.js Zustand Storybook.js

ERC20 Vault

Smart contract for secure ERC20 token storage with deposit and withdrawal functionality
Solidity Ethereum Smart Contracts Web3

// Contact

~/contact $ let's_build_something_amazing

I'm immediately available for new projects. Let's talk about how I can help you achieve your goals.

Email

carralerocristianx@gmail.com

LinkedIn

@carralerocristianx

GitHub

@criss8X