Web3 development, smart contracts and dApps on Ethereum

6+ years building products in crypto: dApps, auditable smart contracts and secure architectures on EVM.

I design and build decentralized applications end to end: Solidity smart contracts, Web3 integration with the frontend and deployment on Ethereum and EVM networks. I take your Web3 idea to production.

I want to build my dApp →

WHAT'S INCLUDED?

Solid, secure and production-ready Web3

Results-driven blockchain development: auditable contracts, dApps with good UX and code ready to scale with your project.

How I work

It's not crypto hype.

I approach every project with a focus on security, gas optimization and maintainability, with tests and reviews before any mainnet deployment.

The result: reliable dApps, auditable contracts and a solid foundation on which your Web3 project can grow with confidence.

Testimonials

What the Web3 projects I've worked with say

Real protocols, collections and dApps. Here are some of the people who trusted me with their Web3.

★★★★★

"Desarrolló nuestros smart contracts y pasaron la auditoría sin incidencias críticas. Código limpio y gas optimizado."

Alex R.

Alex R.

Founder en protocolo DeFi

★★★★★

"Lanzamos el minting sin un solo fallo y aguantó el pico de tráfico. La dApp era rápida e intuitiva."

Mara K.

Mara K.

Lead de colección NFT

★★★★★

"Integró los contratos con nuestro frontend y wallets sin fricción. Entendió el producto desde el primer día."

Tom B.

Tom B.

CTO en startup Web3

★★★★

"Nos ayudó a optimizar el gas y bajamos costes de despliegue de forma notable. Muy profesional y comunicativo."

Lucía F.

Lucía F.

Product Owner

★★★★★

"Construyó la lógica on-chain de gobernanza con tests sólidos. Una base en la que confiamos para escalar."

Daniel V.

Daniel V.

Fundador de plataforma DAO

Frequently Asked Questions

What questions do you need answered?

We answer the most common questions about how I develop Web3 projects so you can decide with all the information.

  • Which networks and technologies do you develop on?

    I mainly work on Ethereum and EVM-compatible networks (Polygon, Arbitrum, Optimism, Base, etc.). I develop smart contracts in Solidity and dApps with ethers.js, wagmi and viem.

  • Do you develop smart contracts from scratch?

    Yes. I design and develop custom contracts in Solidity, or start from proven standards (OpenZeppelin) when it makes sense. I include tests with Hardhat or Foundry before any deployment.

  • Do you audit contract security?

    I review security following best practices and secure patterns, and run thorough tests. For high-stakes projects, I also recommend and coordinate a specialized external audit.

  • Can you optimize the gas of my contracts?

    Yes. I optimize gas consumption in the design and implementation of contracts to reduce deployment and per-transaction costs, without compromising security.

  • Do you integrate the smart contract with the frontend?

    Yes. I connect contracts with the dApp: wallet connection, signing and sending transactions, on-chain state handling and a polished UX so the user understands what's happening at each step.

  • Do you create tokens, NFTs or DeFi integrations?

    Yes. I develop tokens (ERC-20), NFT collections (ERC-721 / ERC-1155) with minting, and build integrations with existing DeFi protocols based on the project's needs.

  • How long does a Web3 project take?

    It depends on the scope. A simple contract with its dApp can be ready in a few weeks; a protocol with several contracts and integrations takes longer. After reviewing your case I give you a realistic estimate.

  • Do you offer support and maintenance after deployment?

    Yes. The code is delivered documented and verified on the block explorer, and we can agree on a support, monitoring and improvement plan so the project evolves securely.

Got a Web3 idea and want it built with secure contracts from day one? Let's talk about your project