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!

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    I am in search of a proficient blockchain developer with extensive experience in Ethereum (ETH) and Binance Smart Chain (BSC). The project is ongoing, and I require someone who can address specific bugs and issues within the smart contracts on both networks. Key Responsibilities: - Fixing identified smart contract bugs - Optimizing the performance of the networks The ideal candidate should: - Be an expert in blockchain development, with at least a few years of experience - Possess extensive experience working with Ethereum and Binance Smart Chain - Have a proven track record of fixing smart contract bugs and optimizing network performance - Be able to work independently, prioritize tasks, and meet deadlines

    €503 (Avg Bid)
    €503 Povprečna ponudba
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    DApp Bug Fix and Redesign 5 dni left
    VERIFICIRAN/A

    I am seeking a highly skilled developer for DApp debugging and website redesign. Key tasks include: 1. Adjust CSV Submission: - The freelancer should modify the current functionality to enable CSV values to be submitted through smart contracts and JSON objects interaction. Esperiences in PapaParse and React are essential. 2. Website Redesign: - The website currently has layout problems due to clustered components. The desired outcome is an organized, functional, and visually appealing website. An understanding of creating strong, integrated web layouts is crucial. 3. Metamask Authentication: - Implement Metamask authentication into the website's framework. Experience with blockchain authentication will be valuable for this task. 4. Code Provision: - Necessary codi...

    €39 (Avg Bid)
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    I'm seeking a skilled developer to assist in developing a blockchain-based game that features NFT cards. This is a unique project that requires a mix of game design, blockchain knowledge, and smart contract development. Key Responsibilities: - Designing and implementing game mechanics related to card collection and trading. This includes developing innovative features such as card stealing, trading with other players, and upgrading cards using in-game assets. - Integrate NFT functionality using ERC-721 tokens: You'll need to have a strong understanding of the ERC-721 standard and the best practices for integrating NFTs into a game. - Creating and managing smart contracts for in-game assets: I require expertise in creating token contracts for NFT cards, ensuring security measures...

    €34 / hr (Avg Bid)
    €34 / hr Povprečna ponudba
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    I'm looking for an experienced developer to help me with a custom Binance Smart Chain fork. This project involves making a few minor adjustments that will enhance the token functionality and potentially improve the performance of the blockchain. Will also include block explorer Will need to be set up/ready for metamask and other wallets Key Responsibilities: - Customizing a Binance Smart Chain fork - Enhancing token functionality - Potentially improving blockchain performance Ideal Skills: - Solid experience with Binance Smart Chain - Extensive expertise in blockchain development - Proficiency in optimizing transaction speed and gas fees - Strong understanding of token functionality enhancement - Excellent problem-solving skills - Proven track record in delivering high-quality proj...

    €781 (Avg Bid)
    €781 Povprečna ponudba
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    We are looking for a reliable and experienced web security expert, specializing in smart contracts and tokens, to join our team as a freelancer. The ideal candidate will be responsible for thoroughly reviewing the security of our websites, verifying updates, and intervening when necessary. Responsibilities: - Review and audit the overall security of multiple websites, with a particular focus on smart contracts and tokens. - Ensure that each update made to the sites is secure and free from vulnerabilities. - Respond quickly and effectively to any security issues related to smart contracts and tokens. Requirements: - Proven experience in cybersecurity, with a portfolio or CV showcasing successful past projects, particularly in the field of smart contracts and tokens. - In-depth skill...

    €34 / hr (Avg Bid)
    €34 / hr Povprečna ponudba
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    I'm looking for an experienced developer to create a vesting smart contract on Ethereum with a linear release schedule that can be revoked if necessary. Key Features: - Token release must follow a fixed schedule. Starting 23rd July, then on 23rd of every month, for 9 months. - The vesting smart contract should be designed to allow token revocation, and only the smart contract owner should have the authority to revoke the vested tokens. The contract needs to be integrated with to show Total tokens, total unlocked tokens, tokens available to withdraw, and a withdraw function. The react frontend exists just need to integrate the contract. Ideal Candidate: - willing to deliver in 1-2 days Maximum budget $200

    €84 (Avg Bid)
    €84 Povprečna ponudba
    16 ponudb

    I'm looking for an experienced developer to create a vesting smart contract on Ethereum with a linear release schedule that can be revoked if necessary. Key Features: - Token release must follow a fixed schedule. Starting 23rd July, then on 23rd of every month, for 9 months. - The vesting smart contract should be designed to allow token revocation, and only the smart contract owner should have the authority to revoke the vested tokens. The contract needs to be integrated with to show Total tokens, total unlocked tokens, tokens available to withdraw, and a withdraw function. The react frontend exists just need to integrate the contract. Ideal Candidate: - willing to deliver in 1-2 days Maximum budget $200

    €87 (Avg Bid)
    €87 Povprečna ponudba
    9 ponudb

    We are seeking an experienced blockchain developer to create a decentralized exchange (DEX) exclusively for trading our native BNB token. The project includes implementing a 2% transaction tax (allocated to admin fund, buyback and burn, and liquidity pool) and a 0.3% DEX transaction fee (allocated to LP rewards, liquidity pool, and staking rewards). The DEX will feature a dynamic pricing mechanism ensuring the token price can only stay the same or increase, evaluated daily based on trading volume and liquidity. Additionally, we require a staking system allowing users to lock tokens for fixed periods and earn rewards. The ideal candidate will have expertise in smart contract development, frontend integration, and security best practices. If you are interested in building a sustainable and i...

    €150 (Avg Bid)
    €150 Povprečna ponudba
    25 ponudb

    We are seeking an experienced blockchain developer to create a decentralized exchange (DEX) exclusively for trading our native BNB token. The project includes implementing a 2% transaction tax (allocated to admin fund, buyback and burn, and liquidity pool) and a 0.3% DEX transaction fee (allocated to LP rewards, liquidity pool, and staking rewards). The DEX will feature a dynamic pricing mechanism ensuring the token price can only stay the same or increase, evaluated daily based on trading volume and liquidity. Additionally, we require a staking system allowing users to lock tokens for fixed periods and earn rewards. The ideal candidate will have expertise in smart contract development, frontend integration, and security best practices. If you are interested in building a sustainable and i...

    €867 (Avg Bid)
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    I'm looking for professional developers with experience in blockchain game development to create an engaging and interactive blockchain farm planting game. The project will be specifically developed for the web platform and will be based on Polygon blockchain technology. Key Features and Requirements: - Virtual Crops and Plants: The game should have a variety of virtual crops and plants for users to cultivate and manage. - Real-time Multiplayer Mode: Implement a multiplayer functionality that allows users to interact with each other in real-time. - In-game Economy System: Develop an economy system within the game that enables users to trade, buy, and sell virtual assets. Ideal Skills and Experience: - Proven experience in blockchain game development, particularly on the Polygon netw...

    €523 (Avg Bid)
    €523 Povprečna ponudba
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    I'm seeking a skilled solidity developer to create a smart contract for my Play-to-Earn (P2E) game. Key Features: - In-game currency transactions: The smart contract should facilitate secure transactions of our in-game currency within the Binance Smart Chain. - Player rewards distribution: It should automatically distribute rewards to players based on their in-game achievements and contributions. - Ownership of digital assets: The smart contract must establish and maintain ownership of digital assets within the game, ensuring that players have full control over their acquired items. Ideal Skills and Experience: - Proficient in Solidity: As the smart contract will be the backbone of our game, it's crucial that you have a strong command of Solidity and a good understanding of bl...

    €33 / hr (Avg Bid)
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    I'm in search of a seasoned Solidity developer to join me on a significant blockchain project. The ideal candidate should have a wealth of experience, particularly in the realm of smart contract development. Key Responsibilities: - Crafting intricate, sophisticated smart contracts for blockchain games - Assisting in long-term project development - Ensuring all smart contracts are secure and efficient Skills and Experience: - A proven track record in Solidity development is essential - Prior experience in developing for blockchain games is an advantage - Strong understanding of blockchain technologies and their application This is a long-term opportunity, so I'm seeking a candidate who is not only highly skilled but also interested in a lasting collaboration.

    €31 / hr (Avg Bid)
    €31 / hr Povprečna ponudba
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    We're seeking an experienced React/Node developer with blockchain expertise to set up a Decentralized Exchange (DEX) for our ERC20 tokens. The successful candidate will: - Fetch tokens from the primary marketplace - Allow users to list their offers on the DEX, including buy, sell, and exchange offers Requirements: - Expertise in React, Node, and blockchain development - Experience with setting up DEX platforms - Knowledge of ERC20 tokens and smart contracts - Ability to work independently and provide clear documentation Additional Details: More information about the project will be provided to shortlisted candidates. If you have the necessary skills and experience, please apply with your portfolio and a brief proposal outlining your approach to this project.

    €606 (Avg Bid)
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