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!

Từ 74,087 nhận xét, các khách hàng đã đánh giá Blockchain Developers 4.85 trên 5 sao.
Thuê Blockchain Developers

Bộ lọc

Tìm kiếm gần đây của tôi
Lọc theo:
Ngân sách
đến
đến
đến
Loại
Nhiều kỹ năng
Ngôn ngữ
    Tình trạng công việc
    85 công việc được tìm thấy, giá theo USD
    Optimizing BlockChain Script Performance 6 ngày left
    ĐÃ XÁC THỰC

    I currently have a working script using the 0x protocol. I frequently get out of gas error messages. I could have 50$ or 3$of ETH in my wallet when this happens so it is not a lack of funds. I believe this is an issue with the script not allocating enough gas. Here is an example of 2 of the TX that failed on Tenderly I need the following: 1. I need someone to fix the OUT of GAS ISSUE AND use the highest amount of GWEI so the TX is processed as fast as possible. 2. ON one of the last lines, the amount of GAS is output. I would like to out ut the TX fee in ETH if possible. PLEASE, I am looking for someone who is skilled in Blockchain This will be quick fix for that person and shouldnt cost alot..... Ideal Candidate Skills and Experience: - Significant expertise in blockc...

    $250 (Avg Bid)
    $250 Giá đặt trung bình
    2 lượt đặt giá

    I am seeking a developer to create a tool that can calculate the profit and loss (PnL) for any given Ethereum wallet address. The tool should be able to determine the total number of coins bought, as well as calculate the profit and loss from all transactions associated with the wallet. Key Features: Wallet Address Input: Users should be able to input any Ethereum wallet address. Transaction Analysis: The tool should analyze all transactions associated with the provided wallet address. Profit and Loss Calculation: Calculate the total number of coins bought and the profit and loss incurred from all transactions. User-Friendly Interface: The tool should have a user-friendly interface for ease of use. Skills Required: Proficiency in Ethereum blockchain technology. Experience in cryptocurre...

    $64 (Avg Bid)
    $64 Giá đặt trung bình
    1 lượt đặt giá

    I'm in need of a skilled developer who can create a custom module for the Cosmos SDK. This module will be focused on token creation. As I've never worked with the Cosmos SDK before, I require someone who is not only familiar with it but also has a strong grasp of blockchain development and tokenomics. Key Requirements: - Development of a custom module for the Cosmos SDK - Focus on token creation - Expertise in Cosmos SDK and blockchain development The successful candidate will need to be able to understand the project requirements, propose solutions, and implement them effectively. Strong communication skills are essential, as is the ability to work independently and proactively. A proven track record in blockchain development and previous experience with the Cosmos SDK are hig...

    $492 (Avg Bid)
    $492 Giá đặt trung bình
    16 lượt đặt giá
    Solana Coin Trading API Enhancement 6 ngày left
    ĐÃ XÁC THỰC

    I have an existing Python script utilizing the Jupiter API to buy Solana coins. However, the script is currently encountering issues in the purchasing process. I'm in need of a professional who can work on the following tasks: - **Debugging**: The current script needs debugging to resolve the issues preventing successful purchases and sell of Solana coins. - **Optimization**: I'm also looking for the script to be optimized for faster execution, particularly in the buying and selling process. I aim for the transactions to be conducted swiftly and efficiently. The ideal freelancer for this project should have: - Proficiency in Python programming - Experience with API integration, particularly with cryptocurrency exchanges - A strong debugging skill set - An understanding of and e...

    $27 (Avg Bid)
    $27 Giá đặt trung bình
    35 lượt đặt giá
    Need to Build Token in solana 6 ngày left
    ĐÃ XÁC THỰC

    Token on solana Name : Make America Great Again Symbol: $Maga Supply : 1 billion Decimals : 9 Tax : 3% buy tax and 3% sell tax(3% to lp and 3% to marketing wallet) *Noone can hold more than 6.7%* (like a supply block) Marketing wallet : GQ5ZVUtoUeLvfAMmUxwMrSNnXacDYSwEZW2abJk2DKcW

    $83 (Avg Bid)
    $83 Giá đặt trung bình
    1 lượt đặt giá
    Solana Trading Script via Jup V6 API 6 ngày left
    ĐÃ XÁC THỰC

    As I venture into the cryptocurrency market, I am in need of a Node.js script that allows efficient Solana trades using the Jup V6 API. Key Requirements: - Build a Node.js script that can accurately execute market orders. - Indispensable ability to interact with the Jup V6 API specific to Solana token transactions. - Configure the script to be used with an existing wallet address of mine. Ideal freelancers for this project would have: - Strong proficiency in Node.js, ideally with prior experience in building scripts for cryptocurrency trades. - Familiarity with the Jup V6 API and its various functionalities, especially in relation to market orders. - Solid understanding of the Solana cryptocurrency token. By helping me to automate my Solana trading activities, you'...

    $368 (Avg Bid)
    $368 Giá đặt trung bình
    84 lượt đặt giá

    Need an app from where user can trade crypto trading on almost 500+ coins/tokens and Also can trade Stock market, forex market etc.

    $1145 (Avg Bid)
    $1145 Giá đặt trung bình
    26 lượt đặt giá

    I'm seeking a skilled blockchain developer to design a decentralized finance application, primarily being a cryptocurrency exchange. While particular functionalities were not indicated, let's make sure the platform includes common features such as Buying/Selling Cryptocurrencies, Secure Wallets for Storage, and Real-Time Pricing Tracker. The ideal candidate will have significant experience in creating such platforms, an understanding of blockchain and DeFi, and a commitment to secure, seamless user experiences.

    $18 / hr (Avg Bid)
    $18 / hr Giá đặt trung bình
    5 lượt đặt giá
    Polygon-based Token Swap Program on Uniswap 5 ngày left
    ĐÃ XÁC THỰC

    I'm seeking an experienced freelancer to construct a swap program on the Polygon blockchain using Python. The core feature is: - Token Swapping MATIC/ABC token on Uniswap - Use Uniswap Universal Router suppoting V3 version. - Buy(purchasing abc with matic), sell (matic with abc). The code is to check the balances of matic and abc token in metamask's personal wallet before and after buy (or sell). - Monitored and recorded on polygon scanner after the action. - GUI, no site required. Only python code. - Python version should be , Web3 version is recommended as 5.29.0. I'm in need of a developer who is proficient in Polygon blockchain technology, Python programming, and who is well-versed in cryptocurrency transactions. The ideal candidate would have prior experienc...

    $137 (Avg Bid)
    $137 Giá đặt trung bình
    51 lượt đặt giá

    As a blockchain expert, I am looking for a seasoned developer with specific experience in developing on the Cosmos SDK. My goal is to create a new blockchain, incorporating smart contracts functionality and custom token creation. Ideal Skills: - Strong background in blockchain technology, particularly in the Cosmos SDK - Proficient in developing custom tokens and smart contracts - Proven experience in creating new blockchains - Familiarity with decentralised applications is a plus You need to have a good understanding of blockchain concepts, and have a portfolio that demonstrates your ability to handle similar projects. Please provide a brief overview of your previous experience with Cosmos SDK and new blockchain development in your bid.

    $465 (Avg Bid)
    $465 Giá đặt trung bình
    19 lượt đặt giá
    Solana Trader for Long-term Strategy 5 ngày left
    ĐÃ XÁC THỰC

    As an advanced-level trading enthusiast, I am currently seeking an expert who is experienced in the Solana environment. Key Responsibilities: - Formulate a long-term position trading strategy on Solana. Ideal Candidate: - Has proven experience in trading on Solana - Understands how to effectively formulate and implement long-term trading strategies - Offers expertise in portfolio optimization for maximizing profits This is an excellent opportunity for talented traders who can demonstrate a track record of success on Solana. I am ready to move forward as soon as I find the right person for this role.

    $33 / hr (Avg Bid)
    $33 / hr Giá đặt trung bình
    7 lượt đặt giá

    I'm seeking a seasoned developer with extensive experience in the Cosmos SDK. The project entails a range of tasks including wallet integration, blockchain development and smart contract deployment. Your primary focus will be ensuring these are seamlessly integrated into the platform. Key Responsibilities: - Implement Wallet Integration: You must have a thorough understanding of how to integrate wallet services into the Cosmos SDK. - Develop Blockchain: Experience in developing blockchains using the Cosmos SDK is essential. You will be responsible for creating a robust and secure blockchain. - Deploy Smart Contracts: Your expertise in deploying smart contracts using the Cosmos SDK will be crucial to this project's success. Deliverables: - Seamless integration of wallet services...

    $516 (Avg Bid)
    $516 Giá đặt trung bình
    21 lượt đặt giá
    Need to build token on solana 5 ngày left
    ĐÃ XÁC THỰC

    Token on solana Name : Make America Great Again Symbol: $Maga Supply : 1 billion Decimals : 9 Tax : 3% buy tax and 3% sell tax(3% to lp and 3% to marketing wallet) *Noone can hold more than 6.7%* (like a supply block) Marketing wallet : GQ5ZVUtoUeLvfAMmUxwMrSNnXacDYSwEZW2abJk2DKcW

    $158 (Avg Bid)
    $158 Giá đặt trung bình
    5 lượt đặt giá
    Solana Token Builder Needed 5 ngày left
    ĐÃ XÁC THỰC

    Token on solana Name : Make America Great Again Symbol: $Maga Supply : 1 billion Decimals : 9 Tax : 3% buy tax and 3% sell tax(3% to lp and 3% to marketing wallet) *Noone can hold more than 6.7%* (like a supply block) Marketing wallet : GQ5ZVUtoUeLvfAMmUxwMrSNnXacDYSwEZW2abJk2DKcW

    $85 (Avg Bid)
    $85 Giá đặt trung bình
    2 lượt đặt giá

    I'm looking for a skilled freelancer to create a bespoke carbon trading website, specifically for Renewable Energy Certificates (RECs). The platform should also integrate a cryptocurrency wallet for our custom digital currency named "Gaga". The main functionalities that I require: - User registration and login system: Ensure that users can easily sign up and access their accounts securely. - Listing and trading of RECs: The platform should allow users to list their RECs and engage in trading activities. - Cryptocurrency wallet integration: The site should have a seamless integration with a cryptocurrency wallet for our digital currency, Gaga. Key Details: - Design: I'm envisioning a professional and corporate layout for the website. The design should be clean, modern,...

    $81 (Avg Bid)
    $81 Giá đặt trung bình
    4 lượt đặt giá

    I'm in need of an experienced developer who can create a USDT flashing software for me. This software will primarily be used for testing purposes, so it doesn't need to execute real transactions. Key Requirements: - Develop this software to work specifically on Windows platform. - It should be capable of simulating USDT transactions with balance display features. - The software should be user-friendly and easy to use, suitable for my testing needs. Ideal Freelancer: - Experience with cryptocurrency development, specifically with USDT and blockchain technology. - Proficient in software development and testing. - Prior experience in creating similar software will be an advantage. Please provide any example projects and demonstrate your expertise in the field. Looking forward t...

    $382 (Avg Bid)
    $382 Giá đặt trung bình
    8 lượt đặt giá

    I am seeking a proficient and experienced Cosmos SDK professional. The primary objective is to integrate the Cosmos SDK with our existing web application. Key Responsibilities: - Utilize your understanding of blockchain technology to seamlessly integrate Cosmos SDK with our web application. - Ensure that the integration enhances the performance and functionality of our platform. - Collaborate with our team to implement the integration in a timely manner. Ideal Skills and Experience: - Deep knowledge of blockchain technology, specifically in relation to the Cosmos SDK. - Proficiency in Golang programming language to effectively carry out the integration. - Prior experience in integrating the Cosmos SDK with existing web applications. - Good communication skills and a collaborative workin...

    $527 (Avg Bid)
    $527 Giá đặt trung bình
    22 lượt đặt giá

    [READ BEFORE BIDDING PLEASE] I’m looking for an expert in decentralized finance (DeFi) to build a swap&bridge platform on Base using OP stack Superchain. This project needs to be completed as soon as possible. Key Specifications: - Using latest version - The platform should feature token swapping and Bridge functionalities. - Responsive on pc browser and on phone - The system should allow users to seamlessly swap various tokens. - While I haven't identified specific token standards yet, your suggestions based on prior experience are welcomed. Desired Skills and Experience: - Experience building DeFi swap sites. - Understanding of OP Superchain. - Effective communication and timely delivery.

    $488 (Avg Bid)
    $488 Giá đặt trung bình
    117 lượt đặt giá

    I'm seeking a skilled blockchain developer to work on a project that involves creating a new contract and token on the TON blockchain. Key Responsibilities: - Develop the Smart Contract: You will be responsible for the design and development of a smart contract that aligns with the project's specific requirements. - Token Creation: You'll also need to create a new token on the TON blockchain. Requirements: - Expertise in blockchain development. - Proficiency in TON blockchain. - Previous experience in smart contract and token creation. - Strong understanding of blockchain security. Your work should adhere to basic security measures. Your experience in blockchain, particularly in TON, will be essential to ensure the integrity of the contract and token.

    $411 (Avg Bid)
    $411 Giá đặt trung bình
    74 lượt đặt giá

    Se requiere: - Elección de la plataforma blockchain - Instalación del software blockchain - Configuración de los nodos - Conexión de los nodos - Configuración del consenso - Configuración de la seguridad - Configuración de la escalabilidad - Pruebas y optimización - Documentación y mantenimiento

    $435 (Avg Bid)
    $435 Giá đặt trung bình
    25 lượt đặt giá

    I'm looking for a seasoned blockchain expert, particularly one with considerable expertise with custom blockchain development.

    $533 (Avg Bid)
    $533 Giá đặt trung bình
    54 lượt đặt giá
    Custom Blockchain Development Specialist 4 ngày left
    ĐÃ XÁC THỰC

    As an individual beginning a new project, I'm seeking a skilled blockchain expert proficient in Solidity. Your role will encompass the development of a custom blockchain solution on the Ethereum platform. Skills and Experience: - Strong proficiency in Solidity programming - Comprehensive knowledge of how Ethereum works - Proven experience in custom blockchain development - Be able to offer expert blockchain consultation as needed - Previous experience with Ethereum is highly desirable By joining this project, you'll have the opportunity to work on an exciting new project while using latest technologies. Your expertise and advice will be invaluable in creating a secure and efficient system.

    $16 / hr (Avg Bid)
    $16 / hr Giá đặt trung bình
    43 lượt đặt giá

    I want to scrape the website for data and present it on my website. I want to show the marketcap and prices for 4 cryptocurrencies. I want them to update in real time and present in a bar chart as if they are competing against each other.

    $135 (Avg Bid)
    $135 Giá đặt trung bình
    113 lượt đặt giá

    EL bot debe poder operar en varios DEX usando flashloans como caracteristica pricipal, las oportunidades de las transacciones las debe buscar en los mempool de los contratos inteligentes de cada DEX. Tambien debe poder hacer frontrunning de las transsacciones The bot must can operate on many DEX using flashloans like principal function, the oportunities of transaction have to look for in the mempool of the Contratcs of the DEX. must can do frontrunning,and sandwich attack

    $149 (Avg Bid)
    $149 Giá đặt trung bình
    22 lượt đặt giá
    Need to build solana token 4 ngày left
    ĐÃ XÁC THỰC

    Token on solana Name : Make America Great Again Symbol: $Maga Supply : 1 billion Decimals : 9 Tax : 3% buy tax and 3% sell tax(3% to lp and 3% to marketing wallet) *Noone can hold more than 6.7%* (like a supply block) Marketing wallet : GQ5ZVUtoUeLvfAMmUxwMrSNnXacDYSwEZW2abJk2DKcW

    $419 (Avg Bid)
    $419 Giá đặt trung bình
    5 lượt đặt giá
    Dune Analytics Dashboard Development 4 ngày left
    ĐÃ XÁC THỰC

    We would like to create a Dune Dashboard for a token project, with the following data, which is all onchain. Keep in mind that the token is on four different chains: Ethereum, Solana, BNB, and BASE): -price -total market cap -total number of token holders -line chart of total number of token holders over time -number of holders on each chain (as pie chart) -total 24h volume -24h volume on each chain (as pie chart) -total 24h token revenue (this is simply 1% of total volume on Ethereum) -total amount of donations made by project (all onchain) -total number of NFTs owned by DAO (they are all in a single address) -Price of X at the market cap of Y for three tokens (this will show what the price of the token would be if it had the current market cap of three different tokens) Looking for som...

    $39 / hr (Avg Bid)
    $39 / hr Giá đặt trung bình
    28 lượt đặt giá
    Seeking Senior Blockchain Engineer 4 ngày left
    ĐÃ XÁC THỰC

    We are looking for a talented and experienced blockchain engineer to join our team and help us build the next generation of crypto trading tools. The project has been completed by 30%. So your main responsibility is to complete our crypto trading platform according to our requirements. - Responsibilities: o Develop and maintain our proprietary crypto trading platform. o Integrate with more crypto exchanges for data retrieval and order execution. o Enhance security and performance of the trading platform. o Collaborate with our team to define product features and roadmap. o Stay up-to-date with the latest developments in blockchain technology and crypto markets. - Requirements: o Bachelor's degree in Computer Science, Engineering, or a related field. o Proven experience i...

    $52 / hr (Avg Bid)
    $52 / hr Giá đặt trung bình
    36 lượt đặt giá
    Blockchain Expert for Security API Creation 4 ngày left
    ĐÃ XÁC THỰC

    I am in need of a skilled blockchain expert who can develop an efficient security API for me. Despite the specifics not being defined yet, I envisage that the APIs will need to offer robust security features. Thus, experience in scalable security infrastructure could be beneficial. Ideally, you will: * Be proficient in Solidity programming - it's crucial for this project. * Have a deep understanding and experience with API security. * Have the ability to design an API with robust security features. * Provide value from the experience to incorporate advanced features. If you possess these skills and have an innovative mindset, please make a bid. While not necessary, including past work, detailed project proposals or relevant experience that you have had could increase your chances o...

    $13 / hr (Avg Bid)
    $13 / hr Giá đặt trung bình
    20 lượt đặt giá
    Polygon Smart Contract Audit 3 ngày left
    ĐÃ XÁC THỰC

    We are looking for an expert in smart contracts, specifically those deployed on the Polygon blockchain. Your application should include past work that demonstrates your experience in this field.

    $534 (Avg Bid)
    $534 Giá đặt trung bình
    126 lượt đặt giá
    Need to complete project 3 ngày left
    ĐÃ XÁC THỰC

    I have a pre-sale project. Staking, pooling, and governance must be completed. It is not yet complete and has not been deployed to servers. If you have good experience, please check the project and let me know the budget and time to complete the project. Share the repository. And I would like to hear your advice to complete the project successfully. I want to finish it within 3 months. Requirements Technologies: Frontend, Blockchain, Web3, Backend, Database, Solidity, API Integration. thank you

    $23 / hr (Avg Bid)
    $23 / hr Giá đặt trung bình
    124 lượt đặt giá
    Escrow Crypto Payment Gateway Developer 3 ngày left
    ĐÃ XÁC THỰC

    I'm in need of a skilled full stack developer with experience in blockchain integration. The project involves creating a standalone escrow crypto payment gateway. Key Requirements: - Proficiency in Blockchain Integration: You should be adept at integrating blockchain technology into a payment gateway. - Experience with Multiple Cryptocurrencies: The payment gateway will support USDT Bep20, Matic, BNB, and SQD Token. You should have experience working with these and have a solid understanding of how to integrate them into the system. The ideal candidate should be well-versed in security protocols, have a good understanding of decentralized finance (DeFi), and have a proven track record of successful blockchain integration projects.

    $5392 (Avg Bid)
    $5392 Giá đặt trung bình
    51 lượt đặt giá

    I'm seeking a competent blockchain developer with strong experience in creating smart contracts on the Ethereum network, or what I refer to as the base network. The primary objective of this project is the automation of financial transactions. This smart contract should be proficient in not only automating these transactions but should also possess the ability to interact with other smart contracts for the seamless execution of transactions. Possessing a keen understanding of the technical aspects involved in swapping one type of token for another, and staking and unstaking tokens would be beneficial but it's not a requirement for this particular job. IDEAL SKILLS AND EXPERIENCE: - Extensive experience in developing smart contracts on the Ethereum network - Proficient in Soli...

    $19 (Avg Bid)
    $19 Giá đặt trung bình
    6 lượt đặt giá
    Deep Dive into Blockchain & Tokenization 3 ngày left
    ĐÃ XÁC THỰC

    I'm seeking to thoroughly understand the concept of blockchain, particularly smart contracts, tokenization of assets, and the blockchain ecosystem. I currently have intermediate knowledge, and am eager to elevate it further. To clarify my needs: - Proficiency in one-on-one teaching, ideally involving complex technical content. - Expertise in blockchain technology, with a specific emphasis on smart contracts, tokenization of assets, and the blockchain ecosystem. - Ability to communicate properly and comprehensively through video conference. - Patience and understanding, considering my intermediate level of understanding. Applicants need to exhibit a deep understanding of the content and present it in an easy-to-understand format. Impress me with your approach and we might continue wi...

    $202 (Avg Bid)
    $202 Giá đặt trung bình
    5 lượt đặt giá

    I'm looking for a Full Stack Developer experienced in blockchain technology and game development to create a web-based game utilizing Ethereum's blockchain, Node.JS, and wallet integration. The game should incorporate the following functionalities: The game now uses backend for the whole mechanism, but I want to make it more decentralized by using smart contract. As you can check on the game, it uses input wallet address and this kind of operation is not comfortable for users. So I want to integrate wallet connect feature on the game. Are you able to implement all of these features? It could be MetaMask, Coinbase, TrustWallet, Rainbow. Please check our current codebase. - Blockchain Technology: Implement blockchain technology to enhance user experience and security. - Node.JS: ...

    $37 / hr (Avg Bid)
    $37 / hr Giá đặt trung bình
    86 lượt đặt giá

    I'm seeking a blockchain expert with proficient knowledge and practical experience in Ethereum to build a Decentralized Application (DApp) with the aim of serving the voting industry. Key Responsibilities: - Develop, design and test the Ethereum DApp - Ensure the application is secure and user-friendly - Maintain and improve the application constantly - Deploy the DApp on Ethereum network Necessary Skills: - Extensive knowledge of Ethereum blockchain, as well as related tools and technologies - Experience in coding Smart Contracts - Proven experience in creating DApps, ideally in the voting or related sectors - Excellent problem-solving skills - Detail-oriented with strong analytical skills If you have a keen understanding of the challenges linked to blockchain deployment and a ...

    $227 (Avg Bid)
    $227 Giá đặt trung bình
    11 lượt đặt giá

    I'm looking for an experienced blockchain developer with expertise in Ethereum smart contract API development. Key API features: - Ability to scan various smart contract code - Honeypot detection - Malicious code detection Required skills: - Proficiency in Solidity and Python - Blockchain development experience, particularly with Ethereum - Demonstrated expertise in API integration - Familiarity with security issues specific to smart contracts If you're a detail-oriented blockchain expert with crowdfunding experience, I'd love to hear from you.

    $15 / hr (Avg Bid)
    $15 / hr Giá đặt trung bình
    28 lượt đặt giá
    Blockchain Expert NEEDED -- 6 3 ngày left
    ĐÃ XÁC THỰC

    I'm looking for a blockchain expert who can build custom blockchain using Cosmos SDK.

    $19 / hr (Avg Bid)
    $19 / hr Giá đặt trung bình
    49 lượt đặt giá
    Urgent Cosmos SDK Blockchain Project 3 ngày left
    ĐÃ XÁC THỰC

    I am urgently seeking an expert in Cosmos SDK to build a custom blockchain with particular functionalities. The primary goal being the implementation of a voting system, staking mechanism, and token issuance. Desired skills and experience include: - Proven expertise with Cosmos SDK - Experience building custom blockchains - Understanding of blockchain voting and staking mechanisms - Token issuance know-how Please note, the expected timeframe for this project is immediate. I am looking for professionals who can start working on the project right away and deliver high-quality results. Your promptness will be greatly appreciated.

    $816 (Avg Bid)
    $816 Giá đặt trung bình
    11 lượt đặt giá

    I'm in need of a highly skilled developer, with a deep understanding of Cosmos SDK to build a custom Blockchain for me. Specific Requirements: - First and foremost, the Blockchain must support smart contracts, this is the key functionality I require. - I have opted not to specifics on the type of smart contracts at this time, this can be further discussed during the project development phase. Project Timeline: - I need my project completed within a month, hence swift and efficient service is essential. Ideal Candidate: - An expert in Cosmos SDK. - Extensive experience in building custom Blockchain. - Understanding of smart contracts in Blockchain. - Good communication skills, be able to work within set timelines.

    $16 / hr (Avg Bid)
    $16 / hr Giá đặt trung bình
    12 lượt đặt giá

    I'm looking for a solana developer. Your task is to create custom spl token. I'll give you data about spl token in detail through chat. But only you have a experience in creating custom spl token, bid please.

    $538 (Avg Bid)
    $538 Giá đặt trung bình
    24 lượt đặt giá

    I am looking for someone who can upgrade walletconnect library to latest version. Just need to upgrade Library

    $35 (Avg Bid)
    $35 Giá đặt trung bình
    1 lượt đặt giá

    **Project Title:** Automated Crypto Arbitrage Bot with Flash Loan Integration and Desktop User Interface **Project Description:** I'm seeking a skilled blockchain developer with strong Python expertise to build a cutting-edge cryptocurrency arbitrage bot. This bot will leverage flash loans for automated profitable trades on major decentralized exchanges. **Core Functionality:** * **Real-time Monitoring:** The code must continuously monitor cryptocurrency prices across all major decentralized exchanges (DEXs). * **Arbitrage Detection:** The bot will use Python for data analysis to identify profitable arbitrage opportunities where a significant price difference (exceeding 0.09% + gas fees) exists for the same cryptocurrency across different DEXs. * **Flash Loan Integration:** The...

    $596 (Avg Bid)
    $596 Giá đặt trung bình
    92 lượt đặt giá
    Urgent Telegram Bot Development 3 ngày left
    ĐÃ XÁC THỰC

    I am urgently looking for an experienced Telegram bot developer to create a bot. we need a telegram bot that will pull market data on all tokens from alcor exchange. We need this quite quickly and will need a setup config section for other users to set up in there channel -as the admin i can add any token to it i want from Alcor exchange -The option to add it channels but admin controls to activate it for said channel -channel users able to use commands and add the tokens they want to display -pull data on command - user would type token from alcor and will pull live data

    $140 (Avg Bid)
    $140 Giá đặt trung bình
    92 lượt đặt giá
    Cartoonish 3js Metaverse Development -- 2 3 ngày left
    ĐÃ XÁC THỰC

    I'm looking for an experienced 3js developer who can create an engaging metaverse with a cartoonish art style. The metaverse should be interactive with customizable avatars and support real-time multiplayer gameplay. Features needed: - Interactive Environments: Users should be able to interact with the world and objects within it. - Customizable Avatars: Users should be able to customize their online persona in multiple ways. -Real-time Multiplayer: The metaverse needs to support multiple users interacting in real-time. Interaction: The primary mode of interaction should be through keyboard and mouse controls. A detailed understanding of user controls in a 3D environment is important. Skills and Experience: - Expertise in 3js for creating 3D environments - Experience with creating...

    $574 (Avg Bid)
    $574 Giá đặt trung bình
    30 lượt đặt giá

    Introduction: The project involves enhancing our existing cryptocurrency wallet application by integrating support for managing tokens. The objective is to empower users to store, send, receive, and manage tokens alongside cryptocurrencies within the wallet app. Key Features: Token Integration: Incorporate support for popular token standards such as ERC-20 (Ethereum) into the existing wallet infrastructure. Enable users to view token balances, transaction history, and manage token assets seamlessly within the wallet app. Token Transactions: Allow users to send and receive tokens to and from external addresses within the wallet app. Implement functionalities for token transfers, including customizable transaction fees and gas limits. Token Discovery and Management: Enable users to disc...

    $53 / hr (Avg Bid)
    $53 / hr Giá đặt trung bình
    29 lượt đặt giá

    I need a blockchain system that will primarily record key information about the citizenry of my new and unrecognized country. The system should be highly secure and allow for easy modification of its data structure and content. Requirements: - The system should primarily focus on recording citizenry information, including basic details such as full name, birth date, citizenship ID, other relevant IDs (including if they hold foreign citizenships), income, bank details, and employment information. - It should be built on a blockchain architecture that ensures the security and integrity of the data. - It should be highly modifiable, with the ability to add new fields for additional information, update existing citizen information, and modify the data structure as required. This ability ...

    $1781 (Avg Bid)
    $1781 Giá đặt trung bình
    26 lượt đặt giá

    I am the head of a new unrecognized country, and we're in need of a seasoned blockchain expert to develop a national cryptocurrency. This digital currency will be overseen by our Royal Bank and the federal reserve. Key Requirements: - Security Measures: The development of the cryptocurrency must prioritize robust security to ensure the protection of our financial transactions from hacking, money laundering, and other banking financial crimes. - Scalability: The cryptocurrency should be able to scale effectively as our nation's economy grows and transactions increase. - Transparency: The system should be transparent, promoting trust and accountability in our financial systems. Creation of accounts: The ability for citizens, businesses, government officials and agencies, and roya...

    $2951 (Avg Bid)
    $2951 Giá đặt trung bình
    26 lượt đặt giá

    I'm seeking a competent freelancer to develop a unique carbon trading website specifically for Renewable Energy Certificates (RECs). It needs to be user-friendly with easy registration and login, efficient REC trading facilities and integrated with a cryptocurrency wallet for our custom digital currency named "Gaga". The platform should be designed to accommodate three main user roles: 1. Trader 2. Investor 3. Administrator Each REC listed on the trading platform must display the following information: - The price of the REC - Quantity available - Seller's information Ideal candidates must possess expertise in web platform development, cryptocurrency wallet integration as well as a profound understanding of the carbon trading environment. Experience in projects r...

    $26 (Avg Bid)
    $26 Giá đặt trung bình
    2 lượt đặt giá

    I'm on the hunt for pre-built Web3 games. Further specifications of the game type were left open-ended, so any genre from collectibles, role-playing, to strategy games may be considered. Are you currently working on a Web3 Game? Did you already finish making a Web3 Game? Do you perhaps worked on a Web3 game before and own the rights? We are interested in 1. buying the code and rights 2. Or listing it on our platform This is a unique opportunity where you can sell your existing Web3 Gaming Project to us or list it on our platform. Write down the following: -Platform(s) of the game -Technologies you used to make the game -Concept and type of game (5-10 sentences) -Price estimate I'm NOT looking for someone to build a game from the start!!! You have to have an already working...

    $131 (Avg Bid)
    $131 Giá đặt trung bình
    30 lượt đặt giá

    I'm looking for a knowledgeable developer to create a bot capable of instant buying and selling Solana tokens on Raydium. You'll need to design a bot that executes trades fully automated, without any need for manual approval. Also it should be able to detect any new Pair that has been added and snipe the token in the moment it was added. Therefore you should be able to manually change the transaction fee. Key Features: - Seamless integration with Raydium. - Instant buy/sell execution the moment the liquidity pool gets created - Full automation of trades so the bot is able to spam transactions as long as i want and with given amounts that should vary while spaming transactions Ideal candidate should have: - Experience in programming trading bots - Excellent knowledge of Solana a...

    $89 (Avg Bid)
    $89 Giá đặt trung bình
    33 lượt đặt giá

    Các bài viết khuyên đọc dành cho bạn

    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