Blockchain, is a technology that encompasses digital records or information, referred to as “blocks”, that are linked together securely and share the same network. This distributed ledger technology is the backbone of a new wave of innovation being implemented into our lives, with new disruptive applications and solutions seen in a growing number of industries. Clients may hire a Blockchain Developer to harness this power and build a secure digital platform tailored to their business needs.

A Blockchain Developer can create unique solutions leveraging blockchain technology to securely store, access, mine and distribute data in an efficient manner. They can leverage features such as blockchain tokens for payments, smart contracts for automated transactions, privacy layers and data protection techniques. Additionally, the expertise of a Blockchain Developer will ensure the project complies with industry standards, ensuring secure data and validation.

Here's some projects that our expert Blockchain Developer made real:

  • Creation of custom applications for fast and secure NFT (Non-Fungible Token) transactions
  • Developments of tools that allow synchronization with physical products using Bluetooth protocol
  • Integrations between wallets hosting cryptographic assets with ecommerce providers
  • The establishment of exploratory networks to provide insights into decentralized ecosystems
  • Developments to foster the growth of peer-to-peer energy trading networks

At Freelancer.com customers have posted amazing projects covering a variety of use cases related to blockchain utilising the Freelancer verified experts. With help from professionals on Freelancer.com customers can create unique projects addressing their business needs with safety, security and legality in mind. Rock your blockchain project today and hire an expert Blockchain Developer on Freelancer.com now!

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    32 travaux trouvés au tarif de EUR

    I am looking for a developer to create a layer 2 blockchain powered by OP Stack with high scalability, privacy, and Ethereum protocol. This project is particularly important as it requires the utmost in security and privacy standards for our users. We need a blockchain solution that can easily scale to fit our users’ requirements, with maximum scalability and optimal performance. Additionally, it should include features such as transaction data privacy and interoperability on top of the Ethereum protocol, to ensure the maximum level of security for our users. Our team of experts is ready to answer any questions you have about this project, or provide additional information if needed.

    €20231 (Avg Bid)
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    23 offres

    I am looking for a freelancer to develop an ERP system accounting for my exchange office. The ideal candidate should have experience in developing web-based applications with the following features: - Accounting: The system should have comprehensive accounting functionalities to track financial transactions and generate reports. - Multi-currency compatibility: The system should support multiple currencies to facilitate currency exchange operations. - Web-based: The system should be accessible through a web browser, allowing users to access and manage the system from any location with internet access. Skills and Experience: - Strong knowledge and experience in web-based application development. - Proficiency in accounting principles and practices. - Experience in developing mul...

    €7129 (Avg Bid)
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    I am looking for an experienced Full Stack Developer to build a custom Metaverse for me. The main focus of the project will be on Virtual Reality environments. Skills and experience needed: - Proficiency in JavaScript programming language - Experience in developing Virtual Reality environments - Knowledge of Blockchain technology for the development of the Metaverse Specific requirements of the project include: - Building a custom Metaverse with interactive and immersive Virtual Reality environments - Integration of Blockchain technology for secure and transparent transactions within the Metaverse Ideal candidates should have a strong understanding of JavaScript and its frameworks, as well as experience in developing Virtual Reality environments. Familiarity with Blockchain technology ...

    €32 / hr (Avg Bid)
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    Blockchain Integration and Smart Contract Writing Expert Needed I am looking for a skilled professional who can integrate a private blockchain into my app and write 1-3 smart contracts using Ethereum. The ideal candidate should have experience in private blockchain integration and be proficient in writing smart contracts using Ethereum. Skills and Experience Required: - Strong knowledge and experience in integrating private blockchains - Proficiency in Ethereum blockchain platform - Ability to write 1-3 smart contracts - Familiarity with blockchain technology and smart contract development best practices - Strong problem-solving and debugging skills - Attention to detail and ability to deliver high-quality work If you have the necessary skills and experience, I would love to hear from y...

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    Задача Нужно ускорить покупку токенов торгового бота. Есть бот который покупает токены на юнисвапе сети erc20, схема покупки реализована таким методом. Бот видит создание ликвидности и сразу отправляет транзакцию на покупку с тем же газом, что и создатель токена. Транзакция проходит в том же блоке что и ликвидность, цель всего что я хочу, это ускорить покупку чтобы транзакция проходило быстрей всех "чужих ботов" примеры чужих ботов Мой бот покупает токен в том же блоке ликвидности, но позже чужие боты быстрей покупают чем мой, а мой в конце блока. Нужен разработчик, который уже делал таких ботов и знает как это реализовать в действительности, а не в теории! В общем нужен разработчик который создавал mev ботов или такого бота как у меня.

    €389 (Avg Bid)
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    4 offres

    Задача Нужно ускорить покупку токенов торгового бота. Есть бот который покупает токены на юнисвапе сети erc20, схема покупки реализована таким методом. Бот видит создание ликвидности и сразу отправляет транзакцию на покупку с тем же газом, что и создатель токена. Транзакция проходит в том же блоке что и ликвидность, цель всего что я хочу, это ускорить покупку чтобы транзакция проходило быстрей всех "чужих ботов" примеры чужих ботов Мой бот покупает токен в том же блоке ликвидности, но позже чужие боты быстрей покупают чем мой, а мой в конце блока. Нужен разработчик, который уже делал таких ботов и знает как это реализовать в действительности, а не в теории! В общем нужен разработчик который создавал mev ботов или такого бота как у меня.

    €477 (Avg Bid)
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    ONLY apply if you are really blockchain expert ! I am looking for a skilled and experienced blockchain developer, specifically someone with expertise in Ethereum, to help me with a project involving NFT sales and token drops. Requirements: - Proficiency in Ethereum blockchain platform - Strong understanding of NFT development, with a focus on gaming - Experience in creating interactive token drops with the ability to trade and sell tokens - Ability to implement medium-level interactivity, allowing users to trade and sell their tokens Ideal Skills: - Solid knowledge of Solidity programming language - Experience in developing smart contracts for NFTs on the Ethereum blockchain - Familiarity with NFT marketplace integration and protocols - Understanding of ERC-721 and ERC-1155 token stand...

    €705 (Avg Bid)
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    need to build a website for news aggregating have subscription and advesrtisement fucntion

    €1653 (Avg Bid)
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    35 offres
    Flash Loan Arbitrage bot 5 jours left
    VERIFIÉ

    I will need the development of an arbitrage bot (smart contract) that will be able to use flash loans to make arbitrage trades between uniswap ,sushiswap, balancer and any other reliable DEX. The bot should be able to spot arbitrage opportunities and quickly execute flash loans from either Aave or Dydx to make trades with them. The flash loan amount (collateral) should be determined by the bot. The bot should be able to execute flash loan arbitrages with the right amount of gas fee in order not to be front run by another bot The bot should be able to repay the flash loan plus the gas fees and then send the profits into the wallet address of the owner . All this should be done automatically and simultaneously.

    €1309 (Avg Bid)
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    blockchain 5 jours left

    I am looking for an experienced freelancer to explore a specific aspect of blockchain technology with me - proof of work. I have clear goals in mind and am seeking someone with intermediate knowledge of blockchain technology. The successful candidate should possess the necessary knowledge to help me develop and explore this project according to my objectives.

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    I am looking for a freelancer to create recorded courses on Blockchain for Basic, Medium, and Advanced levels. The ideal candidate should have expertise in Blockchain technology and experience in creating educational content. Specific Requirements: - The courses should cover all levels: Basic, Medium, and Advanced. - The courses should be delivered in video lecture format. Skills and Experience: - Strong understanding of Blockchain technology and its applications. - Experience in creating educational content, especially video lectures. - Ability to explain complex concepts in a clear and concise manner. - Familiarity with instructional design principles. - Proficiency in video editing software and tools. Please provide examples of previous work or a portfolio showcasing your expertise i...

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    I am looking for a freelancer who can help me with the full installation and configuration of the Bizzan Crypto Trade Platform. Url OpenSource: Server Operating System: Ubuntu Server 22 Objective: Install full beckend and front, config and set all. 4 coin pair needs : BTC/USDT USDT/DGB ETH/USDT BAD/DGB Bitcoin & Digibyte & Badcoin wallet already install and sync. Server and Hosting: I have a dedicated server, all needed is already set. Ideal Skills and Experience: - Strong knowledge and experience in installing and configuring the Bizzan Crypto Trade Platform - Proficiency in working wi...

    €163 (Avg Bid)
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    I am looking for a skilled developer to create a Smart Contract for BEP-20 Tokens. The Tokens will have the following features: - Lockup: The tokens should have a lockup period of 24 months. - Staking: The tokens should include a staking feature. - Staking Rewards: I would like to provide fixed/variable percentage staking rewards to the token holders. Ideal Skills and Experience: - Solid understanding of blockchain technology and smart contract development. - Proficiency in programming languages such as Solidity. - Experience in developing smart contracts for BEP-20 tokens. - Familiarity with lockup and staking features in smart contracts. - Ability to implement fixed percentage staking rewards. If you have the necessary skills and experience, please submit your proposal.

    €354 (Avg Bid)
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    I am looking for a freelancer who can help me create a private Ethereum based blockchain for data storage and retrieval. The ideal candidate should have experience in developing Ethereum based blockchains and should be familiar with the standard Ethereum security protocols. Requirements: - Develop a private Ethereum blockchain for data storage and retrieval - Implement standard Ethereum security features to ensure the integrity and confidentiality of the stored data - Optimize the transaction speed to be higher than the standard Ethereum speed Skills and Experience: - Proficiency in Ethereum blockchain development - Strong understanding of Ethereum security protocols - Experience in optimizing blockchain transaction speed If you have expertise in developing private Ethereum blockchains ...

    €143 - €430
    €143 - €430
    0 offres

    NOTE: - 1. Beginners/Freshers are welcomed with knowledge of AI tools and Digital Tools (like Canva, Discord, Newsletter & Social Media). 2. Most of the time content or content topics will be given you just have to automate them, upload them & and create visuals for it. 3. Content Language will be English. 4. I'm not looking for a one-time VA, I want a complete team member who understands what we are doing. 5 . It's Fine if you don't know some tools and tasks if you are ready to learn! 6 . Money matters but its a new project so you won't be paid much , Please keep that in mind. 7 . As of now there is no BOSS or team , its just one person project. What you should Know? Social Media Handling and cross-post Using AI & other tools to create an...

    €7 - €17
    €7 - €17
    0 offres
    Web3 Auth & Messenger 5 jours left
    VERIFIÉ

    Looking for blockchain expert who can create a messenger with web3 auth and blockchain messaging.

    €15 (Avg Bid)
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    10 offres

    I am looking for a Quick Wealth Management based Demo project in .NET who can integrate Blockchain Security, Quantum key distribution or any Secure Key Management system. This project mainly focuses on demonstrating the Advanced Security features for a Wealth Management Solution.

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    I am looking for a skilled developer to build a wallet for the blockchain platform and provide API integration. The ideal candidate should have experience with blockchain development and API integration. Specific requirements for the wallet include transaction tracking and multi-signature functionality. While I do not have a preferred API for integration, I am open to suggestions. The developer should be knowledgeable about different API options and be able to make recommendations based on the project requirements. Overall, I am seeking a developer who can create a secure and user-friendly wallet for the blockchain platform, with the ability to integrate with an appropriate API. Currently only applicable for TON & TRON, but also flexible for more. Please look at tasklist to see...

    €669 (Avg Bid)
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    26 offres

    I am looking for a skilled developer to build a wallet for the blockchain platform and provide API integration. The ideal candidate should have experience with blockchain development and API integration. Specific requirements for the wallet include transaction tracking and multi-signature functionality. While I do not have a preferred API for integration, I am open to suggestions. The developer should be knowledgeable about different API options and be able to make recommendations based on the project requirements. Overall, I am seeking a developer who can create a secure and user-friendly wallet for the blockchain platform, with the ability to integrate with an appropriate API. Currently only applicable for TON & TRON, but also flexible for more. Please look at tasklist to see...

    €153 (Avg Bid)
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    18 offres

    We need various programmers for various projects

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    24 offres

    Description: We are looking for an experienced blockchain developer to create a multichain crypto wallet with the capability for deposit, withdraw, and transfer functions. The wallet must support the top 25 cryptocurrencies by market capitalization, and the admin should have the ability to list TRC20, BEP20, ERC20, and Polygon tokens as well. Key Responsibilities: Develop a multichain crypto wallet with support for deposit, withdraw, and transfer functions. Implement the functionality to handle the top 25 cryptocurrencies by market capitalization. Provide an admin interface to list and manage TRC20, BEP20, ERC20, and Polygon tokens. Ensure security and compliance with industry best practices. Requirements: Proven experience in blockchain development with a focus on wallet creation. Ex...

    €2507 (Avg Bid)
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    use software 3 jours left

    I am looking for someone to mine Bitcoin to my wallet. Here are the details of the project: Budget: Less than $500. Mining Software/Hardware Preferences: I prefer specific software and hardware for the mining process. Expected Bitcoin Amount: I am looking to mine a moderate amount of Bitcoin, ranging from 0.01 to 0.1 BTC. Ideal Skills and Experience: - Strong knowledge and experience in Bitcoin mining. - Familiarity with specific software and hardware for mining. - Ability to optimize the mining process for efficient and effective results. - Proficiency in managing and transferring Bitcoin to wallets. - Understanding of mining strategies to achieve the desired amount of Bitcoin. - Experience in monitoring and analyzing mining performance. If you have the necessary skills and experien...

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    I am looking for a skilled developer to create a fully tested and secure website (frontend/backend/database/admin panel) with no bugs or issues using the MERN Stack. The key features of the front end design include a responsive design, user-friendly navigation, and custom animations. For the backend it would be clean, and fast high quality code with comments and good organisation and readability. The ideal candidate will have experience working with tight deadlines, provide constant high quality updates and be able to deliver quality work within a short timeframe. Tech: Front-end Framework: React.js with + Typescript Styling: Tailwind CSS Back-end Framework: Node.js with Database: MongoDB Goal: Build a cryptocurrency gambling website from PSD + Figma designs and requirements provide...

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    Blockchain Project: Web 3.0 Streaming and Marketplace Platform We are looking to formulate a team to create a Web 3.0 streaming and marketplace platform (w/gaming component) using blockchain technology, focusing on music, sports and entertainment. The initial position(s) we are seeking are: Blockchain Developer Mobile App Developer, Android/Iphone Gaming Developer AI/ML Developer Web Developer Frontend Web Developer Backend with Server/Database/API experience Blockchain Security Specialist UI/UX Designer Testing/QA Applicants must have the ability to work on this project for more than 6 months. If you are open to a sweat equity position for an initial period of time with substantial financial upsides and have experience in creating web 3.0 platforms, we would love to hear from you. Bl...

    €50220 (Avg Bid)
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    We are looking to formulate a team to create a Web 3.0 streaming and marketplace platform using blockchain technology, focusing on music, sports and entertainment. The initial team/position(s) we are seeking are: Blockchain Developer Mobile App Developer, Android/IPhone Gaming Developer AI/ML Developer Web Developer Frontend Web Developer Backend with Server/Database/API experience Blockchain Security Specialist UI/UX Designer Testing/QA Requirement: Applicants must have the ability to work on this project for more than 6 months. If you are open to a sweat equity position for an initial period of time with substantial financial upsides and have experience in creating web 3.0 platforms, we would love to hear from you. Blockchain & AI/ML experience and ability to communicate is a must...

    €24 (Avg Bid)
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    4 offres

    I am looking to hire a cryptocurrency developer to help create a new token on the BSC network. While I have an idea of what I want the project to look like, I am open to suggestions. Time is of the essence and I am looking to have the project completed within 1 week. If you have experience in cryptocurrency development and feel up to this challenge, then please do not hesitate to reach out. Thank you. The skills listed may not be accurate.

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    30 offres
    PHP Blockchain expert 2 jours left
    VERIFIÉ

    I am looking for a php expert who can develop a crypto payment in bitcoin, eth, usdt trc20 and erc20

    €522 (Avg Bid)
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    48 offres

    Agencia o freelancer experta en programacion, que conozca de blockchain y el funcionamiento de contratos inteligentes, para crear un bot en solidity mediante el IDE de ethereum "remix". La idea es que el bot se ejecute mediante un contrato inteligente y pueda tomar oportunidades de arbitraje en uniswap para poder retirar mis ganancias directo en la billetera con la que se creó el contrato inteligente y tener un rendimiento sobre el capital invertido en dicho contrato, un proyecto pequeño pero poderoso!

    €3949 (Avg Bid)
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    11 offres

    i need blockchain metaverse developer, your task will be to review user reports, help fix any bugs and problems in the use

    €418 (Avg Bid)
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    16 offres

    Project Title: Crypto Whale Alert Project Description: I am looking for a skilled developer to create a Crypto Whale Alert system that will notify me of large buy orders for Bitcoin on a daily basis. The ideal candidate should have experience in cryptocurrency market analysis and be familiar with real-time data monitoring. Requirements: - Develop a system that tracks large buy orders for Bitcoin on a daily basis - Implement real-time data monitoring to ensure timely alerts - Customize the system to only focus on Bitcoin alerts - Provide notifications in a user-friendly format, such as email or SMS - Ensure the system is reliable and can handle a high volume of alerts - Implement proper security measures to protect user data and maintain privacy Skills and Experience: - Strong knowledg...

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    17 offres
    Same site bc games 17 heures left
    VERIFIÉ

    I am looking for a freelancer to create a website for BC games that includes the following: Games: - Board games - Card games - Video games -Api provide by me you have to provide complete source files to us -Payment gateway intigration Same to same complete feature of bc Playability: - The games should be playable online. Interactivity: - I want the games to have advanced interactivity, including features such as in-game purchases and a leaderboard. Ideal Skills and Experience: - Experience in game development and web design. - Proficiency in programming languages such as HTML, CSS, and JavaScript. - Knowledge of online gaming platforms and APIs. - Ability to create engaging user interfaces and seamless gameplay experiences. Please provide examples of previous game development projec...

    €418 (Avg Bid)
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    13 offres
    Cyclos 4 pro configuration 3 jours left
    VERIFIÉ

    Project Description: Cyclos 4 Pro Configuration I am seeking a skilled freelancer to assist with the configuration of Cyclos 4 Pro. The specific configurations required for this project include: - Custom branding: I would like to customize the branding elements of Cyclos 4 Pro to align with my organization's visual identity. It is important to note that there are no existing users that need to be migrated to the new configuration. The ideal freelancer for this job would have experience and expertise in configuring Cyclos 4 Pro, with a focus on custom branding. Additionally, the freelancer should be able to work efficiently and deliver results within a week.

    €22 / hr (Avg Bid)
    LDN
    €22 / hr Offre moyenne
    37 offres

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