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 am in need of a skilled blockchain developer who specifically has experience with Ethereum. My main requirement is to set up a robust blockchain network for my project. This network will need to have the capability to execute automated transactions. Key Tasks: - Create a secure and efficient Ethereum blockchain network - Implement automated transaction functionality Ideal Skills: - Proven experience working with Ethereum blockchain technology - Expertise in setting up blockchain networks - Extensive knowledge in smart contract development - Strong understanding of automated transactions - Ability to work with full transparency and communicate effectively

    $7 - $18
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    I'm seeking a proficient developer with extensive experience in Solidity to create smart contracts for my cryptocurrency trading project. These smart contracts will be deployed on the Ethereum blockchain. Key Functionalities: - An Automated Trading System: The primary purpose of the smart contracts is to enable automated trading. The contracts should be designed to execute trades based on predefined conditions without needing human intervention. Ideal Skills and Experience: - Proficiency in Solidity: You should have a strong understanding and practical experience with Solidity programming language. - Prior Experience: Previous work on creating smart contracts for automated trading or similar projects will be highly beneficial. - Knowledge of Ethereum: You should be familiar with the...

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    I'm in need of expert developers who specialize in creating smart contracts on the Ethereum blockchain. Im looking for assistance in dealing with flash loans. The main function of our contract will center around the exciting field of Decentralized Finance (DeFi). Key features the contract should include are: - Yield Farming capabilities - Lending and Borrowing functionality - Liquidity Pool integration Ideal freelance candidates should have: - Proficiency in Solidity programming - In-depth understanding of the Ethereum blockchain environment - Prior experience in designing and implementing DeFi smart contracts - Proven track record with Yield Farming, Lending/Borrowing, and Liquidity Pool systems Please, only bid if you're confident in fulfilling these requirements. Looking ...

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    Please apply only if you can start immediately. I'm seeking a highly skilled blockchain developer to create first-rate smart contracts for an upcoming project. Though the specifics of the transactions that these smart contracts will be used for hasn't been decided yet, you'll be required to produce high-quality, robust, and efficient code. Key responsibilities will include: • Identifying and defining the requirements for the smart contracts • Creating and implementing the smart contracts Ideal candidates will have: • Proven experience in blockchain development • Extensive knowledge of smart contracts development • Ability to work independently and take initiative • Excellent problem-solving skills Please detail your experience with creating ...

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    As an established blockchain company, we're currently in the market for a seasoned Ethereum blockchain specialist to join our team. This individual will primarily focus on DeFi, harnessing their expertise to further strengthen our offerings. Responsibilities: - DeFi Blockchain Development Skills & Experience: - Proven experience as a Senior Blockchain Engineer, particularly within Ethereum. - A strong understanding and experience in DeFi. - Developed smart contracts experience is a plus but not necessary. - Highly capable in designing sophisticated blockchain architecture. - Demonstrable experience implementing effective security measures. We look forward to receiving proposals from candidates with a robust understanding of Ethereum and a strong interest in developing for DeF...

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    Hello I am looking for a senior blockchain bot developer urgently. The bot will automatically buy and sell tokens on EVM chain. But the transaction fee must not over the average rate now. It' s the main point. If you are interested and ready for this, please contact me. Thank u in advance.

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    I am looking for a blockchain developer who can make a bot with buy and sell functions on Base chain.

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    Please apply only if you can start immediately. I'm seeking a highly skilled blockchain developer to create first-rate smart contracts for an upcoming project. Though the specifics of the transactions that these smart contracts will be used for hasn't been decided yet, you'll be required to produce high-quality, robust, and efficient code. Key responsibilities will include: • Identifying and defining the requirements for the smart contracts • Creating and implementing the smart contracts Ideal candidates will have: • Proven experience in blockchain development • Extensive knowledge of smart contracts development • Ability to work independently and take initiative • Excellent problem-solving skills Please detail your experience with creating ...

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    I am in need of a skilled backend developer who is experienced in working specifically with Ethereum in the realm of public blockchain technology. Even though the complexity level of the project is deemed simple, concerted effort and attention to detail would be crucial to perform the required tasks. Best candidates will have: - Solid experience in backend development on Ethereum's blockchain - Comprehensive knowledge of public blockchain, with a focus on Ethereum - Proficiency in understanding the dynamics of simple blockchain development projects - Excellent troubleshoot and problem-solving skills - A proven track record of successful blockchain projects completion. Keen attention to detail and the ability to work independently are paramount for this project. If this sounds like ...

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    Please apply only if you can start immediately. I'm seeking a highly skilled blockchain developer to create first-rate smart contracts for an upcoming project. Though the specifics of the transactions that these smart contracts will be used for hasn't been decided yet, you'll be required to produce high-quality, robust, and efficient code. Key responsibilities will include: • Identifying and defining the requirements for the smart contracts • Creating and implementing the smart contracts Ideal candidates will have: • Proven experience in blockchain development • Extensive knowledge of smart contracts development • Ability to work independently and take initiative • Excellent problem-solving skills Please detail your experience with creating ...

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    I am searching for an advanced level Web3 backend developer who has extensive experience working with Ethereum. The scope of the project requires the following functionalities to be integrated: - Smart contract implementation - Token creation The ideal candidate should have a strong grasp of blockchain technology, particularly Ethereum, and a proven track record of implementing smart contracts and creating tokens. They need to maintain the highest level of quality, accuracy, and security in their work. Advanced skill set in backend development is a must.

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    I am in need of a talented Full-Stack Blockchain Developer with a strong background in Solidity and JavaScript. This position is for a 3 month full-time contract, with the possibility of extension upon successful project completion. Key Responsibilities: - Implementing smart contracts on Ethereum using Solidity - Developing Decentralized Applications (DApps) - Creating bespoke crypto tokens Ideal Skills: - Proficiency in Solidity and JavaScript - Experience with Ethereum blockchain platform - Understanding and experience in developing DApps, smart contracts, and crypto tokens Overall, I'm seeking someone with the know-how to hit the ground running and deliver high-quality results. Previous experience with similar projects is highly regarded.

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    Please apply only if you can start immediately. I'm seeking a highly skilled blockchain developer to create first-rate smart contracts for an upcoming project. Though the specifics of the transactions that these smart contracts will be used for hasn't been decided yet, you'll be required to produce high-quality, robust, and efficient code. Key responsibilities will include: • Identifying and defining the requirements for the smart contracts • Creating and implementing the smart contracts Ideal candidates will have: • Proven experience in blockchain development • Extensive knowledge of smart contracts development • Ability to work independently and take initiative • Excellent problem-solving skills Please detail your experience with creating ...

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    Kotylin and JAVA engineer is wanted for crypto wallet. 1. Detect the location in the files where connection information to DB is defined and analyze how app and DB are connected. 2. Change DB name and password on app and DB sides without causing any trouble and make the system work.

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    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. Bids: Please provide 3 links to your recent MERN/MEAN projects and provide some documentation or proof that you were the original developer of those 3 websites please. Tech: Front-end Framework: React.js with and State Management + ...

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    I need a specialist in metaverse blockchain technology to assist with the development of my virtual reality project. Our team is focused on several key facets: - Developing smart contracts - Creating a decentralized exchange (DEX) - Establishing an NFT marketplace - Designing farms, pools, staking mechanisms - Building a bridge - Implementing trading Our preferred platforms are Ethereum, Binance Smart Chain, and Solana. We're also interested in incorporating advanced order types within the DEX. The ideal freelance partner would offer: - Significant experience in blockchain development, specifically with Ethereum, Binance Smart Chain, and Solana, - Comprehensive understanding of DEX and advanced order types, - Proven experience in setting up NFT marketplaces, staking, and creati...

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    We have custodial crypto wallet app and system on cloud environment. Please create design document for that. Language Java platform Heroku for app side and DB side on AWS

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    Please analyze the current APK source code and explain about the overall architecture and how it works

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    I'm looking for an expert developer with strong blockchain (Ethereum and Bitcoin) and frontend (React) skills to help me with a project. Key Aspects: - Blockchain: Prior experience with Ethereum and Bitcoin is a must. Hyperledger Fabric is not required. - Frontend: Proficiency in React is necessary. Features Needed: - The project will involve implementing various functionalities such as NFT, token, smart contracts, minting, and staking. Previous experience with these features is highly desirable. Skills & Experience: - Proficiency in Ethereum and Bitcoin blockchain development. - Strong experience with React frontend. - Prior projects involving NFTs, tokens, smart contracts, minting, and staking. - Excellent understanding of blockchain technology and its applications. - Abilit...

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    Add below features onto the apk of custodial crypto wallet when users take actions in transaction. 1. mobile phone number authentication 2. Microsoft and Google Authenticator authentication 3. e-mail authentication

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    Busco un desarrollador blockchain con experiencia para crear un Utility Token ERC-20 en Polygon con su correspondiente Smart Contract.

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    Please apply only if you can start immediately. I'm seeking a highly skilled blockchain developer to create first-rate smart contracts for an upcoming project. Though the specifics of the transactions that these smart contracts will be used for hasn't been decided yet, you'll be required to produce high-quality, robust, and efficient code. Key responsibilities will include: • Identifying and defining the requirements for the smart contracts • Creating and implementing the smart contracts Ideal candidates will have: • Proven experience in blockchain development • Extensive knowledge of smart contracts development • Ability to work independently and take initiative • Excellent problem-solving skills Please detail your experience with creating ...

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    Please analyze the current APK source code and explain about the overall architecture and how it works

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    Add below features onto the apk of custodial crypto wallet when users take actions in transaction. 1. mobile phone number authentication 2. Microsoft and Google Authenticator authentication 3. e-mail authentication

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    I need integrate flashloans from balancer v2 , non profit preventor, no profit = no trade. Integrate flashswap from uniswap, and arbitrage multi hops from 3 paths , now its 2’paths Inneed run this in l2 like arbitrum one, i have full node there I dont need create nothing from zero, just add flashloans balancerv2 , flashswap Uniswap , profit preventor, and 3 hops arbitrage Current repo for add this If you ate bussy dont bid! No pre-payments! Only escrow , need the source code

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