I will build secure web3 dapps smart contracts and blockchain applications

Brazil

I speak English, Portuguese, Spanish
Welcome to my Profile, I am Zeljkobanny, a senior blockchain developer with a unique passion for building a better decentralized world by bringing blockchain and cryptocurrency education to everyone. ...
About this Gig

Many Web3 projects fail because the dApp is poorly structured, smart contracts are insecure, or the blockchain logic cannot scale. This leads to failed launches, lost trust, and expensive fixes after deployment.


I work as a blockchain developer building secure Web3 dApps, smart contracts, and decentralized applications for real world use. From Solana and EVM chains to staking systems, presales, NFTs, and DEX features, I focus on clean architecture, security, and performance.


You share your idea, chain preference, and core features. I design the smart contract logic, develop the dApp flow, integrate Web3 functionality, and deliver a working decentralized application ready for testing or launch.


If you need a reliable Web3 dApp built the right way from day one, send your project details and lets get started.

Expertise:

API integration

Blockchain development

Programming language:

JavaScript

Node.js

PHP

Python

Solidity

Keep your assets and information safe

Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.

Other Blockchain Development & Solutions Services I Offer