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Best Spanish-speaking Web3.js freelancers to hire in 2025

Looking to hire Spanish-speaking Web3.js freelancers for your next project? Browse the world’s best Web3.js freelancers on Contra.

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MoonTech OneSixEight
Almelo, Netherlands
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Emmanuel Okeya
Nigeria
5.0
Rating
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Justin Davidson
PROChicago, USA
5.0
Rating
1
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Explore Spanish-speaking Web3.js projects on Contra

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23
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3
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1
37
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5
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5
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1
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0
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Top services from Spanish-speaking Web3.js freelancers on Contra

Cover image for Blockchain & Web3 Specialist | Smart Contract & DApp Engineer
Ethereum

Ethereum

Smart Contract Engineer

Blockchain Developer

Blockchain & Web3 Specialist | Smart Contract & DApp Engineer

Contact for pricing

C++

C++

Smart Contract Engineer

Blockchain Developer

Blockchain Web3 Development

$80/hr

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Backbone.js

Backbone.js

Smart Contract Engineer

Blockchain Developer

Innovative Blockchain Developer | High-Performance dApp

$50/hr

Top locations for Spanish-speaking Web3.js freelancers

Chicago, United StatesParis, FranceBarcelona, SpainAlmelo, Netherlands

FAQs

A Web3.js expert should have experience with Ethereum blockchain. They should know how to make decentralized apps (dApps). Look for someone who has built smart contracts or worked with decentralized finance (DeFi) applications.
Tell the freelancer what you want to build with Web3.js. Explain if you need a smart contract, a DeFi app, or a token system. Make sure they know the project goals and deadlines.
A good proposal will outline the steps to complete the project. It should include timelines and deliverables like dApps or wallet integration. Make sure to include testing and launching plans.
Use collaboration tools for communication and file sharing. Tools that track progress will help keep the project on time. Make sure there is a plan for testing the Web3.js builds.
Ask for tests to make sure everything works right. Check if the freelancer has past examples of quality work. Be clear about testing phases and error checking in the timeline.
Talk about the project goals and what you want to achieve. Agree on timelines and when you will review progress. Make sure to discuss how communications will happen during the project.
Have the freelancer explain back to you what the project will do. They can describe the technical parts they'll build with Web3.js. This ensures they understand the technical requirements.
Make a list of what the project should end with, like smart contracts or a fully functional app. Agree on what ‘done’ looks like and include it in your contract. Clearly outline each deliverable.
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