Ethereum is an open-source distributed blockchain network that enables its users to create smart contracts, build and deploy decentralized applications (DApps) securely, and maintain a digital ledger of transactions without the need for a third-party mediator. An Ethereum Developer is a professional that has a strong understanding of blockchain technology and the necessary programming skills to create smart contracts, develop decentralized applications (DApp), implement crypto wallets and payment systems, and secure associated networks.

Here's some projects that our expert Ethereum Developers made real:

  • Created user authentication and 3rd-party verification systems for web applications
  • Developed secure payment systems and crypto wallets
  • Implemented blockchain-based trading networks
  • Developed smart contracts and token minting protocols
  • Created decentralized registries with publicly viewable records
  • Built bots to purchase tokens within the Ethereum or Binance blockchains

The Ethereum blockchain not only provides the tools for increased security measures but also provides tamper-proof smart contract functionality through which its users can directly interact with each other without the need for intermediaries. Our expert Ethereum Developers have years of experience in creating blockchain solutions for individuals, startups, and established companies. All of Freelancer.com’s vetted Ethereum Developers possess the necessary tech expertise to make any idea into a reality.

So if you have an idea in mind that can benefit from this incredible technology, why not post your project on Freelancer.com to hire an expert Ethereum Developer? Our vast array of qualified developers specialize in building customized solutions on the Ethereum protocol to enable your project’s success. Begin your journey towards production now by posting your project on Freelancer.com!

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    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...

    $502 (Avg Bid)
    $502 Oferta medie
    18 oferte
    Need to build token on solana 6 zile left
    VERIFICAT

    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

    $177 (Avg Bid)
    $177 Oferta medie
    4 oferte
    Build a cross chain crypto swap 6 zile left
    VERIFICAT

    Looking for someone who have experience in building cross chain token swap we need a platform where user will visit > connect wallet > then dapp will fetch catcoin balance > then user can manually enter solana address and also enter % to get catcoins to solana address > then approve > then that % of token will be sent to admin wallet and also token will be deducted from admin wallet to user's solana address

    $449 - $898
    Sigilat
    $449 - $898
    4 oferte
    Solana Token Builder Needed 6 zile left
    VERIFICAT

    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

    $87 (Avg Bid)
    $87 Oferta medie
    1 oferte

    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...

    $514 (Avg Bid)
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    21 oferte

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

    $517 (Avg Bid)
    $517 Oferta medie
    52 oferte

    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.

    $17 / hr (Avg Bid)
    $17 / hr Oferta medie
    38 oferte
    Need to build solana token 5 zile left
    VERIFICAT

    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 Oferta medie
    5 oferte

    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 Oferta medie
    29 oferte

    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)
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    19 oferte

    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)
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    88 oferte

    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 ...

    $190 (Avg Bid)
    $190 Oferta medie
    10 oferte

    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)
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    28 oferte

    I'm seeking a skilled developer to update my existing Bitcoin wallets with Trust Wallet on my React-based frontend. Additionally, I require integration with Ethereum. The primary functionalities needed are wallet creation and backup for both Bitcoin and Ethereum. Key Responsibilities: - Update Bitcoin wallets with Trust Wallet on React frontend - Integrate Ethereum blockchain with the existing system - Implement functionalities for wallet creation and backup for both Bitcoin and Ethereum Ideal Skills and Experience: - Strong proficiency in React for frontend development - Previous experience with Bitcoin wallet updates and integration with Trust Wallet - Solid understanding of Ethereum blockchain and integration - Experience with developing wallet creation and backup functionalities...

    $1257 (Avg Bid)
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    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 Oferta medie
    29 oferte

    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 Oferta medie
    34 oferte

    I have a website which collects a bitcoin transaction ID and takes a payment in bitcoin for a service. The main service and front end are already in Wordpress with node.js back end but the payment manager written in Django ASGI. I would like to convert it to Javascript also. It is hosted on a instance in AWS. The django system also has some functions which are no longer required so these can be removed, such that it will only handle the bitcoin payments, wallet and payment address management (I use Electrum) and update the front end with payment status. has 600 llines and has 200 lines of code. Please feel free to reach out with question to help scope the amount of work required.

    $273 / hr (Avg Bid)
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    107 oferte
    Build solana token 3 zile left
    VERIFICAT

    I need to build solana token, with specific details 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)

    $91 (Avg Bid)
    $91 Oferta medie
    7 oferte
    Solana-Based Tax Token Creation 3 zile left
    VERIFICAT

    I'm aiming to create a unique token on the Solana blockchain. Key features: - The token will serve a dual-purpose, acting as both a tax-based token and maxing out at 6.7 holdings per wallet. - A fixed supply of tokens will be created. Despite this, the developer I hire must understand how to maneuver with flexibility within set parameters. Ideal skills and experience: - Prior experience creating tokens on Solana's platform is a must. - Understanding of fixed supply limits in token creation. - Knowledge of tax-based tokens is crucial, as it will be one of the central functions of this token. While specific security was skipped in the questionnaire, best security practices according to the blockchain industry should be adhered to. The freelancer should always operate wi...

    $90 (Avg Bid)
    $90 Oferta medie
    5 oferte

    I've successfully created an ERC-20 token on the Ethereum network, utilizing the OpenZeppelin Contracts Wizard and the Remix IDE for its development. The token is live, but I'm encountering issues with its representation on Etherscan.io. Specifically, I'm facing challenges with the ABI details and updating the token's image on Etherscan. It seems there's a mismatch or an incorrect setup that's preventing these elements from being correctly recognized or displayed. I'm looking for an Ethereum and Etherscan expert who can: Quickly diagnose the issue with the ABI and token image update on Etherscan. Provide a detailed solution and assistance in implementing the necessary adjustments to resolve these issues. Advise on best practices for token management an...

    $40 (Avg Bid)
    $40 Oferta medie
    8 oferte

    I'm on the hunt for a skilled blockchain developer who can create a cryptocurrency token based on the Binance Smart Chain for me. Key responsibilities would include: - Designing and implementing the token based on the ERC-20 Standard. - Ensuring the utmost security measures are in place to prevent any potential attacks. - Testing the token to assure smooth navigation and error-free functionality. Since it's a cryptocurrency token development task, freelancers who have profound knowledge and previous involvement in blockchain technology and the Binance Smart Chain specifically would be ideal. Expert-level capability in the creation and deployment of ERC-20 standard tokens is crucial too. If you possess these skills, I'd love to hear more about your previous experiences ...

    $829 (Avg Bid)
    $829 Oferta medie
    24 oferte
    Solana Tax-Based Token Creation 2 zile left
    VERIFICAT

    I'm looking to build a tax-based token on the Solana network. Ideally, this project would be executed using the Rust programming language due to the client's preference and Solana's compatibility. Since specific functionalities have been skipped, I'd welcome inputs from experienced developers in the same area who can suggest features for this kind of token. Expertise in Solana development and tax-based token creation would be preferred.

    $113 (Avg Bid)
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    4 oferte

    Job Offer: Experienced React Developer for Web3 App Development About Us: Uncharted Fox is a private hedge fund specializing in managing investors' funds. Our core team comprises expert traders, and we're embarking on launching a new app. This app aims to streamline portfolio management for investors while prioritizing ease of use and security. Our primary business involves leveraging investors' liquidity, trading on their behalf, and delivering specific ROI with planned fees. Project Overview: We are seeking an experienced React developer to spearhead the development of a Web3 App. The project will leverage existing open-source solutions to expedite development, reduce costs, and ensure efficient execution. Key Features of the Web App: - User account management - Wallet ...

    $712 (Avg Bid)
    $712 Oferta medie
    50 oferte

    I'm looking for someone experienced in building tokens on the Solana network. This is not simply a basic token creation job. I will need some added features and a developer who knows their way around custom functionalities. Key Requirements: - Implement a 6% tax system on transactions. - Limit the maximum token holding to 6.7. - Direct listing support required, so the ability to work with listing processes will be beneficial. The functionality of the token does not need to be extensive or overly complex. Mainly, I am keen on the developer being fluent in the Solana platform and having a firm understanding of token creation. Preferably, you should have past experience in creating tokens with custom rules and features. Let's connect if you have the right skills, I'm excited ...

    $109 (Avg Bid)
    $109 Oferta medie
    4 oferte

    I'm on the lookout for a seasoned, tech-savvy developer to create a presale platform compatible with the EVM network in order to hold a token sale and conduct subsequent token distribution on the Flare Network. The successful candidate should have an understanding of the Ethereum Virtual Machine, familiarity with token distribution processes, and experience of designing modern and minimalist platforms. The platform should focus on: Token Sale Management: This includes coordinating the sale of tokens, managing the process efficiently and effectively, ensuring the security and integrity of transactions. Token Distribution Management: The platform should provide mechanisms to manage the distribution of tokens post-sale seamlessly. Integration with Flare Network: The chosen...

    $189 (Avg Bid)
    $189 Oferta medie
    36 oferte

    Dear all, Hope you are doing well. I need someone to build me a crypto cross chain bridge for token, Please bid only if you know what is Bridge in blockchain

    $451 - $902
    Sigilat
    $451 - $902
    7 oferte

    I've successfully created an ERC-20 token on the Ethereum network, utilizing the OpenZeppelin Contracts Wizard and the Remix IDE for its development. The token is live, but I'm encountering issues with its representation on Etherscan.io. Specifically, I'm facing challenges with the ABI details and updating the token's image on Etherscan. It seems there's a mismatch or an incorrect setup that's preventing these elements from being correctly recognized or displayed. I'm looking for an Ethereum and Etherscan expert who can: Quickly diagnose the issue with the ABI and token image update on Etherscan. Provide a detailed solution and assistance in implementing the necessary adjustments to resolve these issues. Advise on best practices for token management an...

    $62 (Avg Bid)
    $62 Oferta medie
    5 oferte

    Description: We are seeking a skilled and reliable Ethereum developer to create a custom ERC-20 token for our project. The ideal candidate should have a strong background in blockchain technology, smart contract development, and Ethereum standards. Requirements: Proven experience in developing and deploying smart contracts on the Ethereum network. Expertise in Solidity programming language. Familiarity with ERC-20 token standards and best practices in token development. Ability to work closely with our team to understand our specific needs and implement them effectively. Strong communication skills and adherence to project deadlines. Project Scope: Design and development of a custom ERC-20 token. Deployment of the token smart contract on the Ethereum network. Integration guidance and su...

    $67 (Avg Bid)
    $67 Oferta medie
    20 oferte

    I need a proficient developer well-grounded in blockchain technology and notably in Ethereum. My project majorly revolves around: - Smart contract development The tasks entail: - Creating, testing, and implementing Ethereum smart contracts For this job, the ideal candidate will: - Be an expert in blockchain technology with an emphasis on Ethereum. - Be proficient in Solona as the preferred programming language for the smart contract development. - Have a deep understanding and working experience in smart contract development and testing. - Be capable of integrating the smart contract into the existing system seamlessly and securely. Kindly share your previous works related to Ethereum smart contracts in your proposal. Expected freelancers should ensure they meet up with the outlined re...

    $169 (Avg Bid)
    $169 Oferta medie
    18 oferte

    We're seeking an expert in creating Ethereum-based smart contracts. Your role involves developing detailed, secure smart contracts for deployment on the Ethereum platform. Key responsibilities include: - Developing Ethereum smart contracts - Ensuring the security and efficiency of the smart contracts - Integration of smart contracts with our existing web application The ideal candidate has an in-depth understanding of Ethereum blockchain and Solidity, experience with code testing and a well-rounded knowledge of web development languages. Previous work experience in a similar role and a proactive problem-solving approach will be considered a plus. Please ensure to provide your past work samples along with your bid.

    $229 (Avg Bid)
    $229 Oferta medie
    25 oferte

    Recruitment: We are the ARK cryptocurrency trading team below the Rainbow Cryptocurrency Exchange in the UK, and we are recruiting two types of cryptocurrency traders now. 1. Need inexperienced beginners with no trading experience as a teaching material by negative example, with a monthly salary of 1500$(half an hour of simple training is required, and 10 single trades are completed per day). Just 30 mins working time per day. 2. Need experienced trading specialists, with a profit of more than 20% per month, with proof of operation. Monthly salary of 3000$.

    $1295 (Avg Bid)
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    3 oferte

    I am looking for a skilled blockchain developer to assist in deploying an ERC-20 token on the Ethereum network. Ideal Skills & Experience: - Expertise in Ethereum and blockchain technology - Proficient in creating ERC-20 tokens - Understanding of token deployment and related processes The main goal of this project is to create a custom ERC-20 token for a specific project. I am looking for someone who can guide me through the process and ensure the token is deployed successfully. I am open to suggestions on additional functionalities that can be included in the token, so feel free to propose ideas. If you have experience in similar projects and can help me set up a token that is secure, reliable, and meets the ERC-20 and Ethereum standards, please get in touch.

    $563 (Avg Bid)
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    42 oferte
    Blockchain Specialist Needed 19 ore left
    VERIFICAT

    I'm looking for blockchain specialist.

    $163 (Avg Bid)
    $163 Oferta medie
    23 oferte

    I'm seeking a seasoned blockchain expert with a strong focus on smart contracts development. Here, the key responsibilities and specifications of the job: - Developing a bespoke smart contract on the Ethereum platform. - The primary function of this contract will be token creation. - The ideal freelancer for this job will have ample experience with Ethereum's ecosystem, understanding how to leverage its features for thorough, secure smart contract development. Experience and skills in cryptocurrency development and blockchain security will be considered as additional assets but are not mandatory.

    $187 (Avg Bid)
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    27 oferte

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