Juan David Díaz

Web3 development: smart contracts and dApps

I develop smart contracts and decentralized applications, and integrate wallets and Web3 services into real products, with security as a priority from the design stage.

Ideal for

  • Projects that want to issue or manage tokens
  • Companies that need to integrate payments or identity with blockchain
  • Teams looking to connect a mobile or web app with smart contracts

What is included

  • Smart contracts
  • dApps
  • Tokens and NFTs

Why work with me

Security by design

Contracts are hard to fix once deployed, so I prioritize testing and review.

Full integration

I connect contracts, backend and mobile or web app in a single product.

Clear language

I explain the technical parts in simple terms so you can decide with confidence.

Frequently asked questions

What is a smart contract?

It is a program that lives on the blockchain and runs rules automatically, without needing an intermediary.

What is a dApp?

It is an application that connects to contracts on the blockchain and usually lets the user interact with their wallet.

Do you do security audits?

I write automated tests and carefully review my contracts, but a formal independent audit is a different service that I recommend when real value is at stake.

Shall we talk about your project?

Tell me what you need and I will reply within 24 hours.

Let's talk