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.

Asiakkaamme antoivat 17,598 arvostelussa keskimääräisen arvosanan Web3.Js Developers 4.87 / 5 tähteä.
Palkkaa Web3.Js Developers


Viimeisimmät hakuni
    Työn tila
    11 työtä löytyi, hinnoittelu EUR

    I am running prediction bot in pancakeswap that works well, but it doesn't have claiming rewards feature, so I can't run bot full time. Bot is here: Please run bot and do prediction, send me result by screenshot, then I will accept your DM. Budget is $500.

    €452 (Avg Bid)
    €452 Keskimäär. tarjous
    26 tarjoukset
    Wallet Development (Mobile Application) 6 päivää left

    Number of Screen: 1. Login Screen 2. Create Account Screen 3. Forgot Password 4. Import Wallet 5. Home Screen 6. Send /Receive Coin Screen / Transaction 7. Transaction confirmation screen 8. Transaction List (tabs) 9. Token List 10. Add Network Screen 11. Modal popup Functions: 1. Create a function to create a EVM based wallet a. Return: Output mnemonic phrase 2. Create a function to restore wallet using mnemonic phrase 3. Create a function to encrypt private key using password 4. Create a function to create N number of wallet 5. Create a function to import wallet , input would be private key or keystore json. 6. Write a function to get balance of all wallets

    €234 - €703
    €234 - €703
    49 tarjoukset

    I am looking for a skilled blockchain developer to help me test the alpha version of my dapp before its launch. The dapp is built on the Ethereum platform and I need someone to specifically test the user interface functionalities. The project needs to be completed as soon as possible. Skills and experience required: - Strong knowledge and experience in blockchain development - Proficiency in working with the Ethereum platform - Experience in testing user interfaces - Attention to detail and ability to identify and report any bugs or issues - Unit test of projects carefully - Report detailed via document

    €17 / hr (Avg Bid)
    €17 / hr Keskimäär. tarjous
    25 tarjoukset
    web3 chrome extension 3 päivää left

    I am looking for a freelancer to develop a simple web3 chrome extension with the following requirements: Functionality: - simple web3 extationson to send via custom provider - lock extationson whenever browser closed or 5 min of inactivity - Web3 wallet integration - The extension should be able to integrate with DApps - one sample dapp which can show extationson is working for send function User Interface (UI) Design: - Simple and minimalistic design preferred Security Requirements: - Standard Chrome extension security measures should be implemented Ideal Skills and Experience: - Strong knowledge and experience in web3 development and Chrome extension development - Familiarity with integrating web3 wallets and DApps - Proficiency in UI design, particularly in creating simple and min...

    €68 (Avg Bid)
    €68 Keskimäär. tarjous
    21 tarjoukset

    I am looking for a skilled developer to create a betting website using Ethereum Blockchain. The ideal candidate should have experience in developing similar projects and be familiar with Ethereum Blockchain technology. Betting Options: - The website will primarily offer sports betting options, allowing users to place bets on various sporting events. Website Features: - I am open to suggestions and would like the developer to propose specific features and functionalities for the website. - The developer should have a strong understanding of the betting industry and be able to provide recommendations for innovative and user-friendly features. Design Assistance: - I am in need of full design assistance for the website. - The developer should have expertise in web design and be able to crea...

    €711 (Avg Bid)
    €711 Keskimäär. tarjous
    25 tarjoukset

    We are a ambitious startup composed of a small, dedicated team of 5. We are developing NFT marketplace and looking for React Expert who can build the front-end and integrate the smart contract.

    €32 / hr (Avg Bid)
    €32 / hr Keskimäär. tarjous
    73 tarjoukset
    Binance wallet web app design development 2 päivää left

    Crypto wallet web app to manage my token and other listing tokens in future

    €157 (Avg Bid)
    €157 Keskimäär. tarjous
    20 tarjoukset
    web 3 expert 1 päivä left

    Project Title: Web 3 Expert I am in need of a web 3 expert with specific expertise in Decentralized Finance (DeFi). The ideal candidate should have experience in blockchain development and NFT development. I am looking for ongoing support rather than a specific project. The web 3 expert will be responsible for providing continuous assistance and guidance. The scale of the project is large, so the candidate should have experience in handling large-scale projects. Skills and Experience Required: - Expertise in Decentralized Finance (DeFi) - Proficiency in blockchain development - Experience in NFT development - Strong understanding of web 3 technologies - Ability to provide ongoing support and assistance - Proven track record in handling large-scale projects

    €754 (Avg Bid)
    €754 Keskimäär. tarjous
    23 tarjoukset
    P2P Betting Blockchain DaPP 1 päivä left

    Project Title: P2P Betting Blockchain DaPP I am looking for a developer who can build a P2P Betting Blockchain DaPP using the Polygon blockchain. The ideal candidate should have experience and knowledge in working with Polygon and integrating it into decentralized applications. Features: - The DaPP should have peer-to-peer betting functionality, allowing users to place bets directly with each other. - It should also have smart contract functionality, enabling automated execution of bets and payouts. - Real-time transaction processing is essential to ensure smooth and efficient betting experience for users. Security: - The DaPP should have standard security measures in place to protect user data and funds. - Implementing best practices and industry-standard security protocols is crucial ...

    €703 - €1407
    €703 - €1407
    13 tarjoukset

    We are a ambitious startup composed of a small, dedicated team of 5. We're at an exciting stage in our development as we're looking to expand our digital capabilities and enhance our online marketplace. Join us and contribute to our journey of growth and innovation. Role Summary: As our Senior Full Stack Developer, you will play a pivotal role in driving the next iteration of our online marketplace using React, Node, and Typescript. We're searching for an innovative and product-focused engineer who possesses a strong sense of curiosity about our business and customers. You will be integral to the decision-making process, helping to influence our product & technology roadmap, and be accountable for the implementation of solutions from end-to-end. Responsibilities: - D...

    €33 / hr (Avg Bid)
    €33 / hr Keskimäär. tarjous
    93 tarjoukset

    Only Bif if you are experienced blockchain developer. I am looking for an experienced Full-stack Developer to guide our team of engineers on a specific project. YOU should be able to guide engineers remotely. We use react, thirdweb and need to implement token sale, NFT sale for now. Specific areas of web development that we need guidance in include both front-end and back-end development. The ideal candidate should have extensive experience in Full-stack Development and be able to provide clear guidance and instructions to our team. The timeline for this project is less than 1 month, so the candidate should be able to work efficiently and effectively within this timeframe. Overall, we are seeking a knowledgeable and experienced Full-stack Developer who can provide expert guidance...

    €23 / hr (Avg Bid)
    €23 / hr Keskimäär. tarjous
    57 tarjoukset

    Sinulle suositellut artikkelit

    If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
    11 MIN READ
    Learn how to find and work with a top-rated Google Chrome Developer for your project today!
    15 MIN READ
    Learn how to find and work with a skilled Geolocation Developer for your project. Tips and tricks to ensure successful collaboration.
    15 MIN READ