Web3.js is an open source software library that helps integrate with decentralized applications built on Ethereum blockchain technologies. As Ethereum is built on blockchain, Web3.js works as a bridge between the Ethereum blockchain and its users without transcending any rules or data from the blockchain network.

A Web3.Js Developer is an experienced programmer for building decentralized applications using Ethereum development framework and the Javascript library, Web3. When developers use Web3.js, they can craft secure and reliable applications upon a wide-scale peer-to-peer blockchain network with the help of a trustless system of data storage and transfer.

Here are some projects that our expert Web3.Js Developers made real:

  • Creating user authentication features on existing web apps
  • Setting up marketplaces for NFTs
  • Integrating ETH payment systems with React dApps
  • Connecting web sites to TikTok pages
  • Crafting smart contracts on Ethereum technology
  • Writing Typescript & React code
  • Auditing smart contracts prior to deployment

It's projects like these that show the full potential of what a Web3.Js Developer can do for your project. With their knowledge of web development and proprietary scripting language, our experienced developers were able to craft advanced yet secure applications for clients that created real value for all parties involved. With this in mind, we invite you to post your own project and set out to hire a remarkable development team with Freelancer.com today.

From 26,121 reviews, clients rate our Web3.Js Developers 4.9 out of 5 stars.
Hire Web3.Js Developers

Web3.js is an open source software library that helps integrate with decentralized applications built on Ethereum blockchain technologies. As Ethereum is built on blockchain, Web3.js works as a bridge between the Ethereum blockchain and its users without transcending any rules or data from the blockchain network.

A Web3.Js Developer is an experienced programmer for building decentralized applications using Ethereum development framework and the Javascript library, Web3. When developers use Web3.js, they can craft secure and reliable applications upon a wide-scale peer-to-peer blockchain network with the help of a trustless system of data storage and transfer.

Here are some projects that our expert Web3.Js Developers made real:

  • Creating user authentication features on existing web apps
  • Setting up marketplaces for NFTs
  • Integrating ETH payment systems with React dApps
  • Connecting web sites to TikTok pages
  • Crafting smart contracts on Ethereum technology
  • Writing Typescript & React code
  • Auditing smart contracts prior to deployment

It's projects like these that show the full potential of what a Web3.Js Developer can do for your project. With their knowledge of web development and proprietary scripting language, our experienced developers were able to craft advanced yet secure applications for clients that created real value for all parties involved. With this in mind, we invite you to post your own project and set out to hire a remarkable development team with Freelancer.com today.

From 26,121 reviews, clients rate our Web3.Js Developers 4.9 out of 5 stars.
Hire Web3.Js Developers

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    You must consult this link: as well as the attached file.  Application project summary: For example : The “project detector” module searches for new Ethereum projects that are no more than 2 days old and have a liquidity of less than $50. It displays the corresponding projects. ( I've already created this application ( 90% finish) and I will share you) You need to add to these displayed projects the wallet of the transaction to « add » and « remove » liquidity and the following transaction. Then save these two wallets in the database with the following name: DATE - Token name Then, in the viewer module, we enter a token address and display all the token's transactions, just as the “dextool” site does. ( ) ...

    ₹12912 Average bid
    ₹12912 Avg Bid
    15 bids

    Hello, Senior Designer! We have developed a launchpad website to launch a new ERC-20 token amidst the growing trend of cryptocurrencies. Now we are going to implement trading and reward options on this platform. We have to do this from scratch. For this, we need a talented designer with many years of experience in this field. If your work is great, we will hire you as a full-time employee in our agency company. First, check out the project. I uploaded it. After checking, book a time that suits you. Removed by Freelancer.com Without the vision of the project, it will be automatically ignored. Best wishes.

    ₹184741 Average bid
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    You must consult this link: as well as the attached file.  Application project summary: For example : The “project detector” module searches for new Ethereum projects that are no more than 2 days old and have a liquidity of less than $50. It displays the corresponding projects. ( I've already created this application ( 90% finish) and I will share you) You need to add to these displayed projects the wallet of the transaction to « add » and « remove » liquidity and the following transaction. Then save these two wallets in the database with the following name: DATE - Token name Then, in the viewer module, we enter a token address and display all the token's transactions, just as the “dextool” site does. ( ) ...

    ₹11984 Average bid
    ₹11984 Avg Bid
    9 bids

    Crypto issues The technology is laveral Potential Issues When a Webhook Gives Extra Credits for a Replaced Deposit 1. Duplicate Event Handling Problem: If your webhook system is not idempotent (i.e., it doesn't prevent the same event from being processed more than once), it may be treating a "replace" event as a new deposit rather than an update to the existing one. Solution: Implement idempotency in your webhook system to ensure the same event does not trigger multiple crediting actions. Each deposit or transaction should have a unique identifier, and the system should check if that identifier has already been processed. A. Incorrect Event Mapping Problem: The webhook may be configured to handle different deposit-related events similarly. When a deposi...

    ₹103637 Average bid
    ₹103637 Avg Bid
    64 bids

    I'm seeking a CSS/Web3 expert to elevate my website's user experience (UX). The primary focus will be on improving page load speed and refining interactive elements to create a more engaging and seamless experience for visitors. Ideal Skills: - Proficient in CSS with a strong portfolio showcasing UX enhancements - Experience with Web3 technology and its integration into websites - Excellent understanding of interactive web elements - Ability to optimize for speed without sacrificing design integrity Thank you

    ₹194194 Average bid
    ₹194194 Avg Bid
    115 bids

    I'm seeking a seasoned blockchain developer with extensive experience in building Decentralized Applications (DApps) on the Ethereum platform. Your key responsibilities will include: - Crafting a user-friendly and efficient DApp on Ethereum. - Developing and integrating ERC-20 tokens into the DApp. The ideal candidate will have a strong portfolio of Ethereum DApp projects, a deep understanding of ERC-20 token standards, and an ability to deliver high-quality work on time.

    ₹1772 / hr Average bid
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    75 bids
    Expert Needed
    2 days left
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    Expert needed for my new project. Details to be shared personality

    ₹4304 Average bid
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    38 bids

    I'm looking for a highly skilled developer with extensive experience in creating scripts for 3ds Max. The task is to create a script that overlays specific render settings onto rendered images in text form. Key Requirements: - The script should be compatible with 3ds Max 2023 and future releases. - It should work for both single renderings and animations (in image stack form). - The overlay's text content will be specified by the user. - The overlay's position on the rendered images will also be specified by the user. Ideal Skills: - Proven track record in creating 3ds Max scripts. - Excellent understanding of 3ds Max's render settings. - Ability to deliver user-customizable solutions. Please note that the specific render settings to be overlaid have not...

    ₹8186 Average bid
    ₹8186 Avg Bid
    30 bids

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