Solidity is a programming language that is primarily used to create decentralized applications (dApps) and crypto tokens. It is used within the blockchain space to code, verify, and secure transactions on Ethereum-based networks. By hiring a Solidity Expert, they can write, debug and deploy various smart contracts on Ethereum as well as ensure compliance of their smart contracts with standards like ERC20 & ERC721 tokens.

Having a qualified Solidity Expert can bring you the peace of mind knowing that you are dealing with a subject matter specialist. Freelancer.com has many skilled Solidity Experts who can help you build sophisticated software solutions with the highest of quality with their proficiency in writing efficient smart contracts in Solidity.

Here's some projects that our expert Solidity Experts made real:

  • Updating existing Smart Contracts
  • Developing financial bots and trading networks
  • Creating dApps on alternative blockchain networks
  • Designing new money transferring systems
  • Auditing pre-existing token protocols
  • Creating novel blockchain ecosystems
  • Developing NFT marketplaces

When it comes to blockchain coding and programming complex code, there is no better way to do it securely than using Solidity. With its ever increasing importance in many facets of decentralized technology, having an experienced Solidity Expert on your team could be the competitive edge you need. So why wait? Post your project now on Freelancer.com and hire a Solidity Expert and create an unthinkable product or system!

Sur 25,325 commentaires, les clients ont évalué nos Solidity Experts 4.89 sur 5 étoiles.
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    We are in search of a dynamic and skilled Blockchain Developer to join our team. As a Blockchain Developer, you will be at the forefront of designing, implementing, and maintaining innovative blockchain solutions that drive the evolution of our projects. If you are enthusiastic about decentralized technologies and eager to contribute to groundbreaking initiatives, we welcome you to be part of our team. Responsibilities: • Develop and deploy blockchain solutions, encompassing smart contracts and decentralized applications (DApps). • Collaborate closely with cross-functional teams to define and seamlessly integrate blockchain features. • Play a key role in designing the architecture and protocols of blockchain networks. • Conduct rigorous testing and thorough code review...

    €31 / hr (Avg Bid)
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    I'm in need of a Jito bundler built inside a panel tailored for the Solana blockchain. It should automatically send a specified number of tokens to a set of predefined wallets. This tool must be able to connect to a smart contract address and facilitate quick token purchases. My requirements include the following: - Fast Token Purchase: The tool should enable instant token purchases from any smart contract address i provide - Automated Token Distribution: The bundler should be capable of distributing a predetermined number of tokens purchased to single or multiple wallets in a swift manner. - Custom Wallet Addresses: The ability to send tokens to any specified wallet, either automatically or manually is a must. - Smart Contract Integration: The Jito bundler must seamlessly connect to...

    €635 (Avg Bid)
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    Job Description: We are seeking an experienced Python developer with expertise in Web3 technologies to create a specialized script for our Trust Wallet. The goal of this project is to ensure that any amount of ETH sent to our Trust Wallet is immediately transferred to a different specified wallet, keeping the balance of the Trust Wallet at 0 at all times. Responsibilities: Set up and configure Trust Wallet for the project. Develop a Python script using Web3 libraries ( or similar) to monitor the Trust Wallet's ETH balance. Implement functionality to automatically transfer any incoming ETH to a different specified wallet address immediately. Ensure the script runs continuously and reliably without interruption. Provide documentation and support for setting up and running the script. ...

    €790 (Avg Bid)
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    15 offres

    I am looking for a skilled Solidity developer to build a decentralized payment application. The goal is to eliminate the need for third-party payment gateways, using a stablecoin as the primary payment method. Key Requirements: - Building Decentralized Applications: You should have a solid understanding and experience in building decentralized applications. - Solidity: Proficiency in Solidity, the programming language used for creating smart contracts on the Ethereum network, is crucial. - Understanding of Stablecoins: We will be utilizing a stablecoin as the main form of payment in the application, so experience and knowledge in integrating stablecoins is highly desired. The ideal candidate will have experience in developing similar applications and a good understanding of decentr...

    €508 (Avg Bid)
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    I have a casino game that update the payment gateway. I need to integrate crypto wallet and to manage the payment with crypto. Metamask, Trustwallet, Phantom, TRONwallet and etc Requirement: - Build frontend for wallet connection modal - Crypto wallet connection - Build smart contract for payment - API integration I can share the development version for checking project and will provide final version to candidate. After checking dev version, candidate can provide the estimationf for completing project and we can discuss more details. Please share experience for similar job. Good luck.

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    I'm looking for a blockchain developer who can modify an existing NFT contract to store one of the NFT's traits on-chain within the contract. Normally NFT would store the all the traits off-chain or on-chain with IPFS, but for my use case, I need one trait to be on-chain in the NFT smart contract. See attached design as an example: If I would like the card in hand trait to be stored on-chain, I would like to have a function cardInHard(...) to retrieve it with Solidity. I will provide NFT design. There will be one and only one trait to be stored on-chain. I have not decided which trait, but it shouldn't matter to the coding. Other traits will be stored either off-chain, or on-chain with IPFS (I haven't decided yet). I want to use as the base for the development. You...

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    I'm in search of an experienced developer to create a robust admin panel for various crypto operations, primarily leveraging blockchain technologies such as Solana. The functionalities I require include: - Solana & EVM Token Creator: A tool that can create both Solana and EVM tokens. - Token Freeze: The ability to freeze tokens. - MultiSender: A system that can send tokens to multiple addresses at once. - Solana Token Burn: A feature that can burn Solana tokens. - NFT MultiSender: A multi-sender for NFTs. - Airdrop Creator: A tool that can manage airdrops. - Liquidity Manager: A system that can handle liquidity. - Solana Jito Bundle: Implementing and managing Solana Jito Bundle. - Solana Tax Token: A tool to impose and manage taxes on Solana-based tokens. To successf...

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    I am looking for an experienced Ethereum developer who can assist me with smart contract development, blockchain integration, and DApp development. Key requirements: - You should be proficient in Solidity, Vyper, and Serpent. - You must have prior experience in Ethereum development and have a portfolio that showcases your work. - I need this project completed ASAP. It would be a plus if you have experience in developing decentralized applications and integrating blockchain technology. Please include any relevant examples of your past work in your bid. Please only bid if you are confident you can deliver quality results in a timely manner.

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    I am looking for a Full Stack Developer with experience in blockchain technology. I need a professional who has the capability to develop smart contracts and master solidity programming for a blockchain project. The ideal candidate will also have experience in front-end development and the ability to work with decentralized applications. You will have a short consultation before hiring. Please apply if you have the necessary experience and skills to handle this project.

    €37 / hr (Avg Bid)
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    I've recently bought and swapped an ERC20 token on Ethereum using MetaMask. Now, I'm seeking a well versed blockchain professional who could write a solidity smart contract to check the status of my tokens. Key competencies required: * Proficient in Ethereum smart contracts programming, * Extensive knowledge of ERC20 tokens, * Experience using MetaMask wallet. The aim of this project is to provide visibility of my ERC20 tokens, which I will be utilizing for rewards. Please note, the functionalities the smart contract should include are not specified yet, but I'd appreciate your professional suggestions in that area.

    €1335 (Avg Bid)
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    I'm in need of an expert in FlutterFlow with a specialization in backend integration. Specifically, I'm looking for someone experienced with Sloona backend technology, as it's a key requirement for this project. The ideal candidate should be able to: - Integrate Sloona backend technology seamlessly with FlutterFlow - Ensure the backend is reliable, efficient, and scalable to support the application's needs - Optimize the user experience and functionality of the application through this integration This project is on an urgent timeline - I need it completed ASAP. In summary, I'm looking for a talented professional who can effectively merge the power of FlutterFlow with the unique capabilities of Sloona, delivering a fast and high-quality service. If you read the ...

    €168 (Avg Bid)
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    31 offres

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