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<cristian.dev/>
~/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
Work Together View my work

// 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
Github

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
Github

ERC20 Vault

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

// 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

Send message

LinkedIn

@carralerocristianx

Connect

GitHub

@criss8X

View code