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!

From 22,811 reviews, clients rate our Solidity Experts 4.85 out of 5 stars.
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    16 jobs found, pricing in USD

    I'm currently in urgent need of a blockchain developer adept in Binance Smart Chain for a cryptocurrency development project. The project primarily involves the deployment of an existing token onto the Binance Smart Chain. Key Requirements: - Proficiency in Binance Smart Chain: It's crucial that you have extensive experience with this specific blockchain platform. - Cryptocurrency Development: Prior experience in token creation and deployment is essential. - DeFi Skills: While my project doesn't require advanced DeFi features, experience in this area would be a plus. Your responsibilities will include: - Ensuring efficient deployment of the existing token onto the Binance Smart Chain. - Testing the token to ensure functionality. Please include examples of your previous c...

    $116 (Avg Bid)
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    6 bids

    Project Description: We are seeking a highly experienced individual to lead the development and deployment of a decentralized AI and GPU-sharing platform. This long-term project requires a candidate with extensive expertise in AI, blockchain technology, and systems infrastructure to drive the implementation and scalability of the platform. More than 5 years of experience. Responsibilities: Design and develop a Layer 1 blockchain infrastructure optimized for task distribution in decentralized environments. Implement and maintain AI services using frameworks such as TensorFlow, PyTorch, Caffe2, and MXNet. Develop blockchain components, focusing on smart contracts and decentralized applications (DApps) integration. Manage cloud-based and on-premise GPU nodes, including deployment, scaling, ...

    $38 / hr (Avg Bid)
    $38 / hr Avg Bid
    50 bids

    I'm looking for a skilled developer to lead the creation and deployment of a decentralized AI and GPU-sharing platform. Your primary goal will be to combine AI, blockchain, and systems infrastructure knowledge to create a high-performance and secure platform that's fully scalable. Responsibilities: Design and develop a Layer 1 blockchain infrastructure specifically optimized for task distribution in decentralized environments. Design, implement, and maintain AI services using popular frameworks such as TensorFlow, PyTorch, Caffe2, and MXNet. Develop blockchain components, focusing on smart contracts and decentralized applications (DApps) integration. Manage cloud-based and on-premise GPU nodes, including deployment, scaling, and monitoring. Ensure system reliability and scalabi...

    $2529 (Avg Bid)
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    43 bids

    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...

    $279 (Avg Bid)
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    34 bids

    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 ...

    $14 / hr (Avg Bid)
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    20 bids

    We have developed our custom contract based on ERC721A that handles bulk minting in a single transaction. Now, I would need your help in doing the following tasks A- Uploading to IPFS: We have around 6k images. Out of which we would like to deploy 1K now and upload the rest of images for the collection later during our next sale phase. For IPFS pinning services, we would like to go with the Third Web - Here, I know that we can update uri for uploading the remaining images later for the remaining Please let me know if it would affect anyhow to the buyers who purchased NFTs before uploading these images. B - Regarding deployment on Testnet - Yes, before deploying the contract on Mainnet, we would like to check things on Testnet. Now, please let me know if there is any safe method of ...

    $22 / hr (Avg Bid)
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    26 bids

    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

    $515 (Avg Bid)
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    29 bids

    I'm in need of a Solidity expert to assist with developing smart contracts for Uniswap V3. Key Responsibilities: - Development of smart contracts for Uniswap V3 - Ensuring the security and efficiency of the code - Collaborate with the team to implement and deploy the smart contracts Required Expertise: - Proficiency in Solidity - Experience in developing smart contracts, preferably for Uniswap - Strong understanding of blockchain technology and smart contract security - Ability to work in a team environment Ideal Freelancer: I am ideally looking for a freelancer with an expert level of experience in Solidity. The ideal candidate would have a proven track record of developing secure and efficient smart contracts, particularly for Uniswap. A good understanding of DeFi protocols and b...

    $235 (Avg Bid)
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    18 bids

    I urgently need a specialist well-versed in the Tron blockchain platform. The task involves deploying a pre-existing smart contract. To succeed in this role, you must possess: Extensive proficiency and experience with the Tron blockchain. Prior knowledge and hands-on experience with smart contract deployments. The capability to complete the task promptly. Your primary responsibility will be to deploy the existing contract on the Tron chain seamlessly. No development or modification is necessary - I require an expert who can swiftly and flawlessly handle the deployment. If you have a talent for troubleshooting blockchain challenges and are comfortable with tight schedules, this opportunity is for you.

    $10 - $30
    Sealed NDA
    $10 - $30
    1 bids

    I am in urgent need of a specialist with deep knowledge of the Tron blockchain platform. The task at hand consists of deploying a pre-existing smart contract. To excel in this, you'll require: - Proficiency and extensive experience with Tron blockchain. - Knowledge and previous experience with smart contract deployments. - Ability to deliver the task as soon as possible. Your prime responsibility is to successfully deploy this existing contract on the Tron chain. No development or modification is required - I need an expert who can handle the deployment swiftly and flawlessly. If you have the knack for troubleshooting blockchain challenges and are comfortable working under tight schedules, this is for you.

    $297 (Avg Bid)
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    13 bids
    Flash loan Bot 2 days left

    Flash loan arbitrage bot on DEX DeFi like uniswap and others. You have to know how to do it. It's not enough to just have heard about it. We are looking for someone who has already done this themselves. We want to search for the suitable tokens with a scanner we want to take a flash loan we want to buy a token with it We want to sell the token at a higher price. We want to do all of this faster and cheaper than the others. That means we buy wBTC or wETH, for example, so that we don't have to bridge them. that costs too much time and too much money. We want to integrate this offer into our exchange. That means our frontend should be used. We do the design for the frontend, you set up the endpoints with all the backend code. ATTENTION WE DO NOT PAY FOR THE TRAINING OF DEVELOPERS ...

    $86 / hr (Avg Bid)
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    24 bids

    I need a talented whitehat hacker proficient in Web3 to safeguard my future Airdrops from being unfairly claimed by sweep bot accounts. Key Tasks: - Saving future Airdrops Your task is to save Airdrops which blackhat hacker will claim within seconds...you have to outrun him....i will pay you huge

    $2555 (Avg Bid)
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    9 bids

    I'm looking for seasoned blockchain developers, proficient in creating, testing and implementing smart contracts using Solidity. Here's what I need: - Token creation and distribution: I require a smart contract that can efficiently create and distribute tokens. - Current smart contract: The project requires the creation of a significant modern smart contract. Please choose your coding language as Solidity, but flexibility and the ability to work with other languages as the project evolves will be advantageous. The ideal candidate would have a strong command of Ethereum and the Solidity language. Proven experience in developing similar projects would be crucial.

    $348 (Avg Bid)
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    7 bids

    I'm looking for an experienced blockchain developer, specifically with a skilled background in Chainlink Oracle Smart Contract development. - The task involves creating a custom Chainlink Oracle Smart Contract tailored to manage financial data feed. - You'll be working with APIs to retrieve financial data on an hourly basis. - Unlike most projects, no calculations are required on the incoming data before returning it. Ideal skills: - Prior experience with Blockchain development - Deep understanding of Chainlink Oracle Smart Contracts - Proficiency in API data management - Knowledge and experience with financial data.

    $254 (Avg Bid)
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    27 bids

    I need a skilled Solidity developer to work on my existing smart contract. It has some functionality issues that need to be resolved, and it's also facing deployment errors. Your expertise in both troubleshooting and deployment is crucial for this project. Key Tasks: - Identify and fix the smart contract's functionality issues - Resolve any deployment errors that are preventing successful deployment While I didn't specify a particular optimization goal, I'm open to suggestions on how the contract could be optimized. This could include reducing gas fees, improving transaction speed, and enhancing security measures. Feel free to provide your own insights and recommendations in this area. Ideal Skills and Experience: - Proficient in Solidity programming language - Exten...

    $572 (Avg Bid)
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    41 bids
    blockchain 5 days left

    Estoy valorando el realizar un hardfork de la blockchain de BTC y necesito ayuda para eso.

    $39 / hr (Avg Bid)
    $39 / hr Avg Bid
    9 bids

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