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.

De 23,814 opiniones, los clientes califican nuestro Web3.Js Developers 4.83 de un total de 5 estrellas.
Contratar a 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.

De 23,814 opiniones, los clientes califican nuestro Web3.Js Developers 4.83 de un total de 5 estrellas.
Contratar a Web3.Js Developers

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    12 trabajos encontrados
    Pokémon crypto
    1 día left
    Verificado

    Si habla español mejor. Busco crear un Pokémon, como el Pokémon oro, pero que sea multijugador, tanto para web como para móvil, que incluya criptos. Quien sepa hacerlo que me hable. Busco socio o pago al comprobar que el trabajo este finalizado.

    $466 Average bid
    $466 Oferta promedio
    6 ofertas
    Web cryptos
    1 día left
    Verificado

    Si hablas español mejor. Busco socio o pago al ver el trabajo terminado. Quiero una web de juegos, donde el usuario se registre, entonces se crea una dirección en una billetera para Bitcoin core, y que a esa dirección pase el dinero en criptos que el usuario quiera, y luego un juego multijugador, de momento el ajedrez por ejemplo, donde cada usuario apueste por ejemplo 1€(en criptos), y quien gane se lleva los 2€. Cualquier duda hablarme.

    $524 Average bid
    $524 Oferta promedio
    18 ofertas

    Fernarbeit – flexibler Zeitplan – wettbewerbsfähiges Gehalt Standort: Fernarbeit Stellenart: Vollzeit Gehalt: 160.000 – 210.000 USD Eigenkapital: Eigenkapitaloptionen für mehrere Unternehmen verfügbar Über uns: Wir sind ein zukunftsorientiertes Unternehmen mit Sitz in London, das sich der Entwicklung innovativer Lösungen widmet, die die menschliche Handlungsfähigkeit verbessern. Unsere Mission ist es, Organisationen durch Spitzentechnologie und eine kollaborative, dynamische Teamkultur zu stärken. Rollenbeschreibung: Wir suchen herausragende Blockchain-Entwickler, die Teil unseres leistungsstarken Teams aus hochkarätigen Talenten werden. In dieser Vollzeit-Fernarbeitsstelle engagieren Sie sich mit einer produktorientierten Menta...

    $50 / hr Average bid
    $50 / hr Oferta promedio
    3 ofertas

    I am in need of a talented full stack Web3 developer who can help me create a decentralized exchange (DEX) on the Ethereum blockchain. The type of DEX we are aiming for is an aggregator, so experience in building such platforms is a significant advantage. This is the brief description for our project. There are web are full stack developers in our team and now we are looking for senior web3 and blockchain develoepr who can lead the development. We want to collaborate rich experienced developer, so you have to pass the tight tech interview steps. We are offering​ • Competitive Hourly Rate plus Attractive Commission Opportunities • Long-Term Career Advancement within a well-established team • Stable Employment with a supportive and family-like work culture We are looking fo...

    $25 - $50 / hr
    Sellado
    $25 - $50 / hr
    35 ofertas

    I'm looking for a skilled blockchain developer with experience in the BNB Beacon Chain. The project involves working with my liquid BNBs, which are divided into hundreds of 0.5 BNB pieces. The main task is to aggregate these pieces using the raw data from my liquids. Ideal Skills: - Extensive knowledge of the BNB Beacon Chain - Proficiency in blockchain development - Experience with data aggregation This project is a great opportunity for freelancers who are passionate about blockchain technology and have a knack for data analysis. Your role will be crucial in enhancing the efficiency of my liquid BNBs.

    $50 / hr Average bid
    $50 / hr Oferta promedio
    9 ofertas

    I'm looking for a skilled full-stack developer to help me with a cutting-edge metaverse shopping platform, called Meta-Shopping. This platform will integrate AR, VR, and web3 technologies to provide an unparalleled shopping experience. Key Responsibilities: - Focus on Web3 integration: This is a crucial aspect of the job. The platform's integration with Web3 should be seamless and efficient. - Implement key Web3 functionalities: You will be responsible for incorporating cryptocurrency payments, NFT marketplace integration, and smart contract implementation into the platform. - Enable user interactions: The platform should support product browsing and purchasing, virtual try-on experiences, and social interactions and sharing. Ideal Skills: - Extensive experience with Web3 techn...

    $72 / hr Average bid
    $72 / hr Oferta promedio
    33 ofertas

    My project(web3) is taking too long to run. It's about 1 minute and 30 seconds. Please help me improve the execution speed of my project. This is my porject repository. I'll give you $300. Key Requirements: - I need someone who has worked on personal projects before, especially in deploying decentralized applications. - Proficiency in Web3 technologies like Ethereum, Solidity or IPFS is a must. - An extensive portfolio showcasing your past work in Web3 projects would be highly beneficial. - You should be able to communicate proactively and efficiently. The project has a very tight deadline so I need someone who can start immediately and deliver quality work in a timely manner. Please include your specific experience with Web3 technologies in your application. Thank you!

    $433 Average bid
    $433 Oferta promedio
    57 ofertas

    Our team is at the forefront of financial technology innovation. We are developing a cutting-edge Meta Trading platform designed to revolutionize trading experiences with high efficiency and security. Our platform, currently in the beta phase, is built using for the frontend and Node.js with MongoDB for the backend. We are looking for a Senior Backend Developer to join our team to finalize and enhance the backend infrastructure and support our growth over the next six months. ✨ Project Overview: Our Meta Trading platform aims to deliver a robust, scalable, and secure trading experience. The platform will support various trading functionalities, including real-time updates, trade execution, and user management. As we move from beta to the final release, we need to ensure the backend syst...

    $33 / hr Average bid
    $33 / hr Oferta promedio
    59 ofertas
    Mobile Roulette Telegram Bot Clone
    2 días left
    Verificado

    I'm looking for a mobile-compatible web app similar to the Telegram bot This bot will allow users to connect, spin a roulette, link their TON wallets and execute a smart contract on the TON blockchain. Key Features: - Mobile Compatibility: The web app should be designed for optimal performance on mobile devices. - Roulette Functionality: Users will spin the roulette to win rewards. - Wallet Support: The bot should support multiple popular TON wallets, including TON Crystal Wallet, TON Wallet, MyTONWallet and others. Ideal Skills and Experience: - Strong knowledge of blockchain technology, particularly the TON blockchain. - Proven experience in creating interactive web apps and Telegram bots. - Familiarity with developing mobile-compatible web apps. - Experience with implementing s...

    $202 Average bid
    $202 Oferta promedio
    20 ofertas
    USDT ERC-20 Token Development
    1 día left
    Verificado

    I'm seeking an experienced developer to create a USDT crypto token utilizing the ERC-20 standard. This token will have 16 decimals, be time-limited, and primarily designed for smart contract interactions. Key Responsibilities: - Design and develop an ERC-20 compliant USDT token - Implement 16 decimal precision - Create a limited validity feature Ideal Skills and Experience: - Extensive experience with ERC-20 token creation - Strong understanding of smart contract interactions - Proficient in blockchain technology and its implementation - Past projects demonstrating relevant skills and experience

    $586 Average bid
    $586 Oferta promedio
    18 ofertas

    I'm seeking a skilled developer to help build a Web3 real estate investment platform. Key Responsibilities: - Full Stack Blockchain Development: This will encompass the entire process from front-end to back-end development on the blockchain. - Smart Contract Integration: The platform will need to utilize smart contracts for transactions to ensure transparency and security. - Tokenization of Assets: The ability to tokenize real estate properties on our platform is crucial. - User Portfolio Management: We want to provide users with the ability to manage their own investment portfolios on our platform. The ideal candidate should have: - Extensive experience in blockchain development, particularly on the Binance Smart Chain. - Proven track record in developing real estate investment pla...

    $2530 Average bid
    $2530 Oferta promedio
    73 ofertas

    Please read all requirements before submitting your proposal. Specify how long it will take you to complete the project and the cost of your services. We will contact you if we are interested in your proposal. Project Description: We are looking for an experienced smart contract developer and web developer to create a hybrid cryptocurrency on the Polygon blockchain. The key features of the cryptocurrency should include: Public and private transactions with user choice. Support for DeFi (staking and yield farming). Integration of NFTs with existing marketplaces. Decentralized governance through a DAO. Conducting a pre-sale of tokens (ICO). Development of a comprehensive website for the project. Creation of a White Paper and a One Pager. The project also involves integration of th...

    $2991 Average bid
    Destacado
    $2991 Oferta promedio
    63 ofertas

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