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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    Rust-Powered Decentralized Cryptocurrency Creation 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    I'm on the hunt for a Rust expert, particularly someone with blockchain development experience. My goal is to create a unique, decentralized cryptocurrency. Here's what you need to know: - **Cryptocurrency Purpose**: Our main objective is to create a decentralized cryptocurrency that features transaction anonymity, scalability for handling extensive transactions, and sustainability in terms of energy consumption. - **Consensus Mechanism**: We're opting for a Proof-of-Work (PoW) based system. While we're inclined towards PoW, we're also open to hearing your suggestions or recommendations based on your previous experience. - **Key Expertise Needed**: Rust development, blockchain technology, decentralization methodologies, understanding of PoW consensus mechanism, an...

    $533 (Avg Bid)
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    Token creation & Advanced Presale Smart Contract 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    We are searching for a blockchain developer who can bring my project to life. Project is under NDA. WE have react Frontend and node.js Backend. Here's what I need: • Creation of a utility token. The purpose of this token will be determined as the project evolves. • Integration of a smart contract for a presale phase. This smart contract should include critical functionalities such as: - Whitelisting of addresses, ensuring only approved participants can join the presale. - Setting up a hard cap, to limit the maximum amount of capital that can be raised during the presale. It's important to note, I have yet to decide on the specific blockchain platform, hence, expertise in Polygon, Ethereum, Binance Smart Chain and Solana would be ideal. Overall, I require someo...

    $319 (Avg Bid)
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    I'm looking for a seasoned Ethereum blockchain developer with a deep understanding of the platform, smart contracts, and Decentralized applications (DApps). Key Responsibilities: - Design, develop and launch smart contracts on Ethereum - Create groundbreaking Decentralized applications (DApps) This project is an excellent opportunity for a blockchain enthusiast eager to shape next-gen blockchain applications. Apply now to join this exciting venture!

    $11 (Avg Bid)
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    3 заявки

    I'm looking for an experienced developer to create a seamless wallet system for my website. Here are the key functionalities required: - An ability to make deposits and withdrawals. - Provision of a transaction history. The wallet system needs to connect with a third party Crypto API, so experience with cryptocurrency APIs is a must. The ideal candidate will have: - Solid experience with API integration, especially cryptocurrency-related ones. - An understanding of payment gateway handling. - Demonstrable knowledge of website development and back-end system work. Only bid if you have hands-on experience with these systems and can work within deadlines.

    $87 (Avg Bid)
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    10 заявки

    I'm looking for a brilliant Blockchain developer who can create a copy of a Proof-of-Work (PoS) coin, * Demonstrated understanding of how to copy PoS coin * Experience in coin creation/fork Expectations: Fully functional, and ready to use Crypto coin fork With all features the code already have: anonymous transactions, nodes, staking etc. so need to change anything in that. Finished product should include full source code + masternode setup VPS on Ubuntu 20.04, and QT GUI wallets for Linux, Windows.

    $316 (Avg Bid)
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    6 заявки

    I am seeking a talented blockchain developer with in-depth familiarity with Ethereum, for the creation of a Decentralized Application (DApp) primarily aimed at businesses. Key aspects of this project involve: - Extensive knowledge of Ethereum and its development architecture. - Wide experience in creating DApp on the Ethereum blockchain. - Understanding the specific needs of businesses related to blockchain applications. The developer should have a proven track record in designing, developing, and deploying DApps for business usage. Exceptional problem solving skills, coupled with strong programming abilities, would be essential to success in this role. A clear understanding of the latest blockchain trends in business will be highly beneficial.

    $96 (Avg Bid)
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    5 заявки
    Cryptocurrency Platform with Wallet Integration 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    I am in need of a proficient Blockchain developer to create a cryptocurrency platform which places a strong emphasis on wallet integration. Key Requirements: - Development of a well-functioning cryptocurrency platform. - The key feature of wallet integration on the cryptocurrency platform - it should be able to handle multiple cryptocurrencies. Ideal Skills: - Expertise in Blockchain development. - Deep understanding and proven experience with cryptocurrency platforms. - Familiarity with wallet integration and compatibility with multiple cryptocurrencies. The budget for this project is limited to 230 hundred dollars. Once completed, I would like the final code to be relayed over to me for future use. An organized, innovative, and detail-oriented freelancer is desired for this project.

    $973 (Avg Bid)
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    31 заявки

    We are seeking a talented and experienced Blockchain SEO Platform Developer to join our team on a freelance basis. As a Blockchain SEO Platform Developer, you will be responsible for designing, developing, and implementing an innovative SEO platform that leverages blockchain technology and machine learning algorithms to address the drawbacks of traditional SEO practices. This is an exciting opportunity to work on cutting-edge technologies and make a significant impact on the future of SEO. Key Requirements: -Research and understand the drawbacks of traditional SEO practices, including issues such as fraudulent backlinks, content plagiarism, data manipulation, lack of transparency, and centralized control. -Design the architecture and components of a blockchain-based SEO platform that ad...

    $33 (Avg Bid)
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    15 заявки

    I am seeking a detailed study of the Ethereum blockchain and EVM-compatible blockchains, with a focus on volume and uses analysis. Key features of the analysis should include: • Smart Contract Statistics Data collection from blockchain explorers (Etherscan, Polygonscan, etc.) for Ethereum and EVM-compatible chains. Analysis of transaction volumes and function executions for ERC721, ERC1155, and ERC20 contracts. Emphasis on key functions: claim, mint, stake, burn, and transfer. Information about the top 10 most famous EVMs. • Market Capitalization Analysis Examination of market capitalization data for ERC721, ERC1155, and ERC20 tokens. Utilization of cryptocurrency tracking platforms (CoinMarketCap, CoinGecko) for accurate market valuation. Presentation of market capitalization ...

    $454 (Avg Bid)
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    12 заявки

    I am seeking a detailed study of the Ethereum blockchain and EVM-compatible blockchains, with a focus on volume and uses analysis. Key features of the analysis should include: • Smart Contract Statistics Data collection from blockchain explorers (Etherscan, Polygonscan, etc.) for Ethereum and EVM-compatible chains. Analysis of transaction volumes and function executions for ERC721, ERC1155, and ERC20 contracts. Emphasis on key functions: claim, mint, stake, burn, and transfer. Information about the top 10 most famous EVMs. • Market Capitalization Analysis Examination of market capitalization data for ERC721, ERC1155, and ERC20 tokens. Utilization of cryptocurrency tracking platforms (CoinMarketCap, CoinGecko) for accurate market valuation. Presentation of market ca...

    $726 (Avg Bid)
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    6 заявки
    Create a Crypto Currency 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    I am looking for someone who can create a cryptocurrency

    $9 / hr (Avg Bid)
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    5 заявки

    I am seeking an expert knowledgeable about hybrid (PoW and PoS) TRC20 token mining. This project is aimed at generating passive income through the successful mining of these tokens. Skills/Experience: - Expertise in PoW and PoS systems - A sound understanding of TRC20 tokens and their mining process - Proven experience in creating profitable mining operations Please note no specific target audience has been identified, so the mining strategy should be versatile enough to be adapted if necessary. I encourage applicants from diverse backgrounds. The successful applicant will ultimately be able to demonstrate a successful track record of creating and managing effective mining strategies. Objectives: - Develop and implement a hybrid TRC20 token mining strategy - Share knowledge and...

    $27 (Avg Bid)
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    2 заявки
    Decentralized Puzzle Game with Monetization 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    I'm looking for a skilled game developer or team to bring my vision of a cross-platform, decentralized, puzzle game to life with a goal of monetizing it through in-app purchases. Your responsibilities include: - Creating a compelling puzzle game that can be enjoyed on Mobile (iOS/Android), Desktop (Windows/Mac), and Web-based (HTML5) platforms. - Incorporating decentralization features into the game - Developing a reliable in-app purchase system from scratch Ideal Skills and Experience: - Prior experience in developing puzzle games - Familiarity with decentralization in gaming - Extensive experience in Mobile, Desktop, and Web-based game development - Proven track record of implementing in-app purchase systems.

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    I am looking for a Solana expert for a small project. I need a python script to execute a swap on Raydium. Here is fucntion type(return whether the swap was successful and amount) def swap(fromToken, toToken, amount, slippage) Please bid only if you have previous work with python not javascript. Thanks.

    $144 (Avg Bid)
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    16 заявки

    I'm looking for a seasoned developer to build a presale platform for my BNB token. This should incorporate a user and admin panel and wallet connectivity for users. Primary Features Required: 1. **Landing Page:** Featuring a highly customizable template, tailoring it to specific needs should be possible. 2. **User Panel:** Focused on wallet management for users. An interface that's straightforward to use and efficient. 3. **Admin Panel:** Should have options for user management and reporting & analytics. I would like to keep track of user activity and generate essential reports. Additional Features: - Email & Payment Verification: Automatic verification for streamlining the process. - Round and Road Map Setup: Helping investors understand token distribution. - Staking,...

    $331 (Avg Bid)
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    8 заявки
    Urgent Solana Rust Developer for DApp 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    I'm in urgent need of a Solana developer proficient in Rust. Your main responsibility will be: - Development of a Decentralized Application (DApp) Though not explicitly stated, additional capabilities such as user authentication, token swap, and staking functionality might come in handy. Skill and Experience: - Solid experience in DApp development. - Proficient in Rust and Solana blockchain is essential. - Demonstrable experience with Solana technology stack will give you a significant advantage. This task requires urgent attention, so I'm seeking a developer who can start ASAP. Please only bid if you are from India and can meet the deadline. Your prompt response will be greatly appreciated.

    $10 / hr (Avg Bid)
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    7 заявки

    Looking to develop an SEO platform that incorporates blockchain technology for added decentralization and transparency. Key Features Include: - Backlink Tracking - Content Optimization Implementation: - Using Ethereum for blockchain technology to enable transparency and decentralization. Ideal Candidate Should: - Be proficient in working with Ethereum blockchain. - Have a strong understanding of SEO components, particularly backlink tracking and content optimization. - Prior blockchain application in SEO technology is a plus.

    $28 (Avg Bid)
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    Allbank1.com - crypto/credit card system 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    1. Crypto currency integration 2. Wallet integration 3. Payment methods (Api integration) 4. Mobile app integration 5. Security integration (2FA) 6. Credit card system 7. Account setup ( login + signup) 8. Customer support

    $1464 (Avg Bid)
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    As a disruptive enterprise, I'm looking for an experienced Blockchain developer with a strong background in creating smart contracts. What I am specifically after is the development of a Blockchain application tailored for the supply chain industry. Some of the essential skills and experiences required for this project include: - Extensive experience in Blockchain application development, particularly in the creation and implementation of smart contracts - Proficient understanding of the supply chain industry - Proven record of developing Blockchain applications for specific industries Your success in this role will be determined by your technical proficiency in Blockchain development and your ability to create a bespoke solution for a specific industry, in this case, the supply...

    $73 (Avg Bid)
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    6 заявки
    TRC20 Network Blockchain Development -- 2 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    I require an experienced developer, skilled in TRC20 Network and Solidity programming language for blockchain development. - Blockchain Platform: The project will be developed on the TRC20 Network, so expertise in this platform will be essential. - Programming Language: Solidity is our preferred language, the freelancer should possess advanced knowledge and hands-on coding experience. - Experience Level: I'm looking for a professional who has an advanced level understanding and experience of Solidity and TRC20 Network, to effectively complete the project. Kindly submit your bid alongside the proof of your knowledge and experience in Solidity, preferably on the TRC20 Network. I appreciate your understanding and interest. Payment made once the Product ready to deliver NO ADVA...

    $10858 (Avg Bid)
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    11 заявки
    Write smart contract for the Ethereum blockchain 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    We are in the need of an experienced blockchain developer who is proficient in Solidity for the creation of a smart contract on the Ethereum blockchain. Necessary skills and experiences: - Proven proficiency in Solidity; coding, testing and deployment of smart contracts - Comprehensive understanding of Ethereum blockchain. - Ready to start immediately Your experience in similar work will be considered as one of the important criteria for selection. Therefore, please ensure to highlight your relevant professional experience in your application.

    $378 (Avg Bid)
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    40 заявки
    Solana dApp Development for Presale 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    Seeking a skilled Solana developer with proficient knowledge in both Rust and Solidity programming languages. Scope of Work: - Creation of smart contracts on the Solana blockchain, centered around DeFi applications and an NFT marketplace. - Development of a decentralized application (dApp) specifically designed for a presale event. Ideal Skills and Experience: - Extensive experience in Solidity and Rust. - Knowledge in dApp development, particularly for finance applications. - Strong background in DeFi applications and NFT marketplace development. - Prior experiences with Presale Ido/Ico projects would be a plus. Interested candidates, please apply with relevant examples of your work.

    $250 (Avg Bid)
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    6 заявки

    Website React/ – UI – Mobile Responsive Compatible with Chrome, IE, Brave, Opera Web3 – Wallet Connect v2 – OKX Wallet – Binance Wallet ---- 1. Header 1.1. Enter Metaverse We will embed our WebGL game demo in this page. 1.2. Mainnet Events 1.2.1. Token Sale We will have token sales in this page. Should be Round #, Token Allocation, Price, Status, View under the Round Information. Should be Status (Live, Paused, Expired), Price, Buy Token with Max button, Buy Time, Lock Time 1.2.2. Vesting/Claim Portal 1.2.2.1. Vesting v1 • In this page we will embed Token Claim function and ui/ux for old token buyers. • Holders will see their locked total token amount, installments 1.2.2.2. Vesting v2 • In this page we will embed Token Claim function and ...

    $2300 (Avg Bid)
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    101 заявки
    Advanced Crypto-Powered Proxy Dashboard Development 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    I am in need of a specialist to build a versatile and dynamic dashboard for my business. The tool should be capable of satisfying the following requirements: - Proxy Provisioning: The dashboard should facilitate my clients in making requests for new proxies. Additionally, it has to be capable of auto provisioning proxies based on given client specifications. Tracking, managing and reporting of proxy usage are also vital features that I am looking for. - API Call Management: Streamlining application interactivity is key. The solution should allow efficient management of different API calls. - Cryptocurrency Payment Integration: Given the rise in the popularity of digital currencies, I need the system to handle payment transactions in Bitcoin and Tether (USDT). - User Management...

    $19 / hr (Avg Bid)
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    17 заявки

    I'm in search of a proficient full-stack Blockchain developer, with niche experience in Binance Smart Chain. Your primary task will be to create tokens and subsequently integrate them with the partially developed front-end and back-end of my project. Specifics of job include but are not limited to: - Token creation on Binance Smart Chain - Integration of newly created tokens with the existing front-end and back-end, developed with Python and JavaScript Ideal skills for the job: - Proven experience in Binance Smart Chain - Expertise in Python and Javascript - Familiarity with full-stack blockchain development Your role is crucial to the advancement of my project and I look forward to your suggestions and ideas. Your understanding of blockchain technology must be top-notch to perf...

    $20 / hr (Avg Bid)
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    56 заявки
    Crypto Market Analyst for Specific Networks 1 день left
    ПІДТВЕРДЖЕНО

    I am looking for someone with expert knowledge in market making and crypto analysis. The primary focus would be on analyzing market trends for the TON Network, SOL Network, and Polygon Network. Key Responsibilities: - In-depth analysis of price fluctuations, volume, and competitor activities - Develop actionable insights based on market trends analysis Ideal Candidate: - Should have in-depth familiarity with TON Network, SOL Network, and Polygon Network - Must be experienced in analyzing patterns, forecasts, and competitor activities in the cryptocurrency market - Experience in developing trading strategies and setting up trading bots will be beneficial If you have solid background in these areas, I'd love to hear from you!

    $7 / hr (Avg Bid)
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    USDT Flash Transfer Interface 1 день left
    ПІДТВЕРДЖЕНО

    I'm looking for a skilled developer to create a robust and user-friendly USDT flash software. This platform should present real-time transaction updates and allow for instant transfers between wallets. Freelancers interested in this project should lay out a comprehensive project proposal, focusing particularly on: - Detailed technical description of the software - Expected challenges and how to address them - Timeline and milestones - Cost estimate Experience in blockchain technology, smart contracts, and cryptocurrency transactions would be highly beneficial. Proven skills in developing user-friendly interfaces and real-time functionality are essential. I am looking for a developer who can develop portable USDT Flashing Software in main network (windows based, preferably windows...

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    Se requiere el desarrollo de un contrato inteligente, el cual consiste en la creación y puesta en marcha de un sistema de donaciones en la red de Solana o Polygon, aunque también se está abierto a otras sugerencias. Dónde se utilice para las donaciones entre los usuarios el Token de la misma red si es en Solana y si es en Polygon se implementara la criptomoneda estable USDT y que el sistema de donaciones funcione en una estructura multinivel con matriz de 4 frontales x 6 niveles de profundidad. Se requiere conjuntamente la página web de presentación del proyecto donde cada usuario pueda visualizar sus datos más importantes, referidos y comisiones. Las páginas web acá son solo un ejemplo, estamos abiertos a modelos má...

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    5 заявки
    Blockchain Expert Needed 1 день left
    ПІДТВЕРДЖЕНО

    I'm seeking a highly skilled expert in blockchain technology for an undefined project. As the detailed requirements and goals are not yet defined, I'm open to working collaboratively with the chosen expert to shape the project's trajectory. - Proficiency in smart contracts, decentralized storage, and digital identity management are all desired skills for this project. - Possible project goals, still to be defined, might include secure and transparent transactions, decentralized data storage, or tokenization of assets. - Experience level: Though the project's specifics are not yet clear, I'm looking for an expert in blockchain technology. If you're a professional in this area, don't hesitate to reach out. Please note, as the project outline is not yet ...

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    13 заявки
    Crear web de casino desde 0 y token 1 день left
    ПІДТВЕРДЖЕНО

    Hola, requiero un casino en linea como el que mostrare en la parte de abajo, debe tener varios juegos entre 50 a 100, el diseño de la plantilla para este casino, registros y aceptar pagos en cryptomonedas con un api externa (Metamask) usdt, eth y bnb y otras mas conexiones para hacer depositos (coinbase etc..) Tambien se debe hacer el token del sitio (Network: Binance Smart Chain (BSC) ) por lo que el programador debe tener conocimientos en blockchain, debe demostrar que ya hizo algo antes similar, tambien yudar con la integracion en CoinGecko y algunos exchanges ejemplo: pancakeswap. Links del ejemplo: Comprobar bien los link y ver si es capaz de realizar el proyecto antes de ofertar, recuerde que quiero un codigo desde 0, si alguno tiene el codigo ya hecho de casino y es algo...

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    17 заявки
    Decentralized Exchange Desktop App Development 1 день left
    ПІДТВЕРДЖЕНО

    I'm looking to have a decentralized exchange (DEX) desktop application developed. The primary functionality needed is trading. This application must support the Ton blockchain technology. Key features should include: - Full Ton Blockchain Integration - Advanced Trading Functionality Ideal candidates for this job will have: - Proven experience in desktop app development - Familiarity with DEX platforms - Understanding of Ton blockchain technology - Strong experience in creating trading functionalities within a DEX. Please share examples of similar projects you have worked on in your proposal, especially those involving the Ton blockchain.

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    21 заявки
    Create a Crypto-Gambling Website (In MERN stack) 1 день left
    ПІДТВЕРДЖЕНО

    I am looking for a skilled developer to create a fully tested and secure website (frontend, backend + 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 provided and ...

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    34 заявки

    I'm seeking highly skilled blockchain developers with a primary focus on new blockchain development. - Key Expectations: - Have substantial experience in all stages of blockchain development - Proven track record with blockchain projects, particularly in developing new blockchains and cryptocurrencies. We are working on the development of a new blockchain. You can also contribute your own ideas and become part of the founding team, which will be very attractive financially once the blockchain is launched. Are you passionate about such a new project and ready to give it your all? Then get in touch with us.

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    DApp Development in Ethereum 23 годин(-и) left
    ПІДТВЕРДЖЕНО

    I'm looking for a skilled Blockchain Programmer who's proficient in Ethereum to assist in developing a Decentralized Application (DApp). Ideal Skills: - Proficiency in Ethereum and DApp development. - Experienced in creating smart contracts. Project Requirements: - The smart contract should support trading transactions. - There should be secure storage functionality ensuring data protection in the smart contract. Your skillset should match these requirements. Please demonstrate your previous projects in DApp development and Ethereum programming when bidding. Your familiarity with smart contracts is a crucial aspect of this project.

    $2427 (Avg Bid)
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    39 заявки
    Ethereum dApp Developer Needed 23 годин(-и) left

    I'm in need of an experienced blockchain developer with proficiency in Ethereum to aid in the development of a decentralized application. - Key Skills and Experience - A strong background in ethereum-based programming - Demonstrated experience in dApp development - Ability to design and build smart contracts with intermediate extended features. Your primary role will be to design, develop, and implement a dApp on the Ethereum platform with smart contracts featuring intermediate extended functions. Evidence of past projects detailing similar work would greatly increase your chance of success in this bid. Looking forward to collaborating with an expert in this field.

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    42 заявки
    Tokenização usina solar 15 годин(-и) left
    ПІДТВЕРДЖЕНО

    Preciso de um desenvolvedor para tokenização, trabalho com construção de usinas solares, e gostaria de tokenizar essas usinas e todo o processo que engloba isso.

    $458 (Avg Bid)
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    6 заявки

    I am looking for a blockchain expert who has solid experience in Avalanche network. I wanna list a NFT on the NFT marketplace "". Please bid you only when you have similar previous work. This is a simple project if you are an expert and this project must be done with Node.js and Ethers.js. Thanks.

    $224 (Avg Bid)
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    27 заявки
    Python Dev for Mobile Telegram Trading Bot 8 годин(-и) left
    ПІДТВЕРДЖЕНО

    I am looking for an experienced Python developer who can construct a Telegram buy bot from scratch. Functionality of bot should be alerting of every buy transaction in their respective crypto token. Ideal candidates will possess the following: - Expertise in Python programming - Prior experience developing Telegram bots - Knowledge of real-time data algorithms - Understanding of mobile platform needs and limitations. - Example @buytech This project requires an innovative problem-solver who can build functional and efficient trading bots tailored to mobile users. Your contributions will lay the groundwork for an intuitive and responsive mobile trading platform.

    $8 / hr (Avg Bid)
    $8 / hr Сер. заявка
    8 заявки

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