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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!

De 66,895 opiniones, los clientes califican nuestro Blockchain Developers 4.86 de un total de 5 estrellas.
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    29 trabajados encontrados, precios en EUR

    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!

    €3907 (Avg Bid)
    €3907 Oferta promedio
    11 ofertas
    Web3 Auth & Messenger 6 días left
    VERIFICADO

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

    €14 (Avg Bid)
    €14 Oferta promedio
    6 ofertas

    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 ...

    €142 - €426
    €142 - €426
    0 ofertas

    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 ofertas
    FX, Stock, Crypto futures exchange 6 días left
    VERIFICADO

    Requirements: 1. User Registration and Authentication: - Users should be able to register and verify their accounts securely. - Two-factor authentication (2FA) for added security. 2. User Interface Features: - Allow users to create Buy and Sell ads for cryptocurrencies. - Provide a dashboard to track Buy/Sell orders. - Implement portfolio management for users. - Display transaction history for all user activities. - Allow users to deposit both fiat and cryptocurrencies. - Enable instant Buy/Sell of cryptocurrencies. - Implement a referral program for users to refer others. - Host trade contests for users with rewards. 3. Trading Features: - Spot Trading: Allow users to execute spot trades. - Margin Trading: Provide margin trading functionality with leverage. - Futures Trading: Offer fut...

    €4360 (Avg Bid)
    €4360 Oferta promedio
    33 ofertas

    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.

    €299 (Avg Bid)
    €299 Oferta promedio
    7 ofertas

    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...

    €2598 (Avg Bid)
    €2598 Oferta promedio
    2 ofertas

    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...

    €506 (Avg Bid)
    €506 Oferta promedio
    23 ofertas

    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...

    €156 (Avg Bid)
    €156 Oferta promedio
    17 ofertas

    We need various programmers for various projects

    €520 (Avg Bid)
    €520 Oferta promedio
    20 ofertas
    use software 5 días 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...

    €127 (Avg Bid)
    €127 Oferta promedio
    4 ofertas

    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...

    €4877 (Avg Bid)
    €4877 Oferta promedio
    34 ofertas

    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...

    €50135 (Avg Bid)
    €50135 Oferta promedio
    26 ofertas

    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...

    €16 (Avg Bid)
    €16 Oferta promedio
    3 ofertas

    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.

    €700 (Avg Bid)
    €700 Oferta promedio
    30 ofertas
    PHP Blockchain expert 3 días left
    VERIFICADO

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

    €512 (Avg Bid)
    €512 Oferta promedio
    49 ofertas

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

    €433 (Avg Bid)
    €433 Oferta promedio
    15 ofertas

    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...

    €577 (Avg Bid)
    €577 Oferta promedio
    16 ofertas
    Same site bc games 2 días left
    VERIFICADO

    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...

    €414 (Avg Bid)
    €414 Oferta promedio
    13 ofertas
    Custom Ethereum Token Creation 1 día left
    VERIFICADO

    I am looking for a skilled developer who can create a custom Ethereum token for my project. The purpose of this token is to serve as a security token for investment purposes. Skills and Experience: - Experience in creating ERC-20 tokens - Familiarity with the Ethereum blockchain and smart contract development - Knowledge of token standards and best practices for security tokens Project Requirements: - Creation of a custom Ethereum token based on the ERC-20 standard - Development of smart contracts and integration with the Ethereum network - Implementation of necessary security measures to ensure the token's integrity and investor protection Token Quantity: - The project requires the creation of less than 100 tokens. If you have experience in creating custom Ethereum tokens and ar...

    €665 (Avg Bid)
    €665 Oferta promedio
    28 ofertas

    Project Title: Create and List Custom Cryptocurrency on Binance Portal Description: I am looking for a skilled developer to create a custom cryptocurrency and list it on the Binance portal. The main purpose of this cryptocurrency is for investment purposes. Skills and Experience: - Strong knowledge and experience in blockchain development, specifically on the Ethereum blockchain. - Proficient in creating and deploying smart contracts. - Familiarity with Binance portal and the process of listing cryptocurrencies. - Understanding of cryptocurrency market trends and investment strategies. - Ability to ensure security and reliability of the cryptocurrency. - Excellent communication skills and ability to work collaboratively. Budget: $10 Please note that the budget for this project is lim...

    €12 (Avg Bid)
    €12 Oferta promedio
    4 ofertas

    want crypto expert to ask them questions and to get crypto

    €151 (Avg Bid)
    €151 Oferta promedio
    18 ofertas
    Market research 19 horas left
    VERIFICADO

    Market Research Project: metaverse marketing agency Objective: - Provide a detailed analysis of the metaverse marketing Research Scope: - Conduct comprehensive research on the current state of the technology industry - Identify key trends, challenges, and opportunities in the market - Analyze market competition and consumer behavior - Explore potential target markets and customer segments Research Deliverables: - Detailed analysis report with in-depth insights and recommendations - Clear and concise presentation of findings - Visual representation of data and statistics Ideal Skills and Experience: - Strong background in market research and analysis - Expertise in the technology industry - Proficiency in data collection and analysis tools - Ability to provide strategic recommendations...

    €531 (Avg Bid)
    €531 Oferta promedio
    23 ofertas
    Build an web3 app like friend.tech 19 horas left
    VERIFICADO

    I am looking for a skilled developer to build a web3 app similar to with some changes. The app will primarily focus on some social networking and web3 features. The ideal candidate should have experience in web3 development and be familiar with social networking platforms. Key requirements for the project include: - Developing a web3 dapp with social networking features - Designing the app to be similar to , but with some changes - Ensuring the app is user-friendly and visually appealing - Implementing functionality for messaging and connecting with other users - Creating a marketplace for users to buy and sell products - Launching the app in less than a month - should be able to build from Features, UIUX, prototype, to first version. Skills and experience required: - Proficiency in ...

    €4103 (Avg Bid)
    €4103 Oferta promedio
    76 ofertas

    I am looking for a skilled developer to create a NFT staking website based on the rarity of the NFTs on the Solana blockchain. This project has a timeline of 1-2 weeks. Features: - Basic staking functionality - Integration with Solana blockchain - Rarity-based staking rewards Specific NFTs: - The client has specific NFTs they want to include in the rarity-based staking rewards. Ideal skills and experience: - Proficiency in developing and integrating with the Solana blockchain - Experience in developing NFT staking websites - Knowledge of rarity-based staking rewards If you are interested in this project and have the necessary skills and experience, please submit your proposal.

    €300 (Avg Bid)
    €300 Oferta promedio
    52 ofertas

    I'm looking for a skilled freelancer to help continue the development of an ecommerce platform for Android in Kotlin. The project is of a simple complexity and I will provide the existing source code. I do not have a graphical design ready yet, so I'm seeking a freelancer who can help with that as well. This is an ongoing project, and I'm looking to build a long-term relationship with the chosen individual. If this project interests you, please reach out. I'm excited to move forward and work together. Thanks!

    €492 (Avg Bid)
    €492 Oferta promedio
    53 ofertas

    Project Description: Create Crypto Payment Method We are looking for a skilled developer to create a crypto payment method with a high level of security. Cryptocurrency Integration: - The project requires integration with a specific cryptocurrency that will be specified by the client. Crypto Wallet Integration: - A crypto wallet needs to be integrated into the payment method to facilitate transactions. Security Requirements: - The desired level of security for the crypto payment method is high. Ideal Skills and Experience: - Experience in cryptocurrency integration and development - Knowledge of various cryptocurrencies, including Bitcoin and Ethereum - Proficiency in integrating crypto wallets into payment systems - Strong understanding of security protocols and encryption techni...

    €85 (Avg Bid)
    €85 Oferta promedio
    6 ofertas

    I am looking to develop a new product or service utilizing state-of-the-art technology such as Amazon Web Services, Blockchain, IoT, and AI. The project will have to be built from scratch, as I do not have existing infrastructure for this project. This project requires expertise in several technologies, from developing innovative features using AWS, IoT, and AI, to utilizing secure blockchain technology that allows for efficient tracking and secure transactions. It is also important that the project is completed with scalability and interoperability in mind, as well as security, performance, and reliability. I am looking for a dedicated and creative freelancer who has significant experience with these technologies and who can deliver a project with the utmost attention to detail. If you t...

    €2474 (Avg Bid)
    €2474 Oferta promedio
    19 ofertas
    Cyclos 4 pro configuration 4 días left
    VERIFICADO

    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)
    Acuerdo de Confidencialidad
    €22 / hr Oferta promedio
    37 ofertas

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