Smart Contracts Jobs

Smart Contracts are a way of securely exchanging digital assets such as money, services, and goods. With this type of smart contract, both parties can have flexibility when it comes to managing their business and legal agreements. Smart Contracts allow two parties to set specific rules and obligations that are enforced through code on the blockchain. A Smart Contracts Expert can be hired to manage the development process from conception to implementation of a client's own Smart Contract.

Here's some projects that our expert Smart Contract Experts have made real:

  • Creation of unique DeFi capabilities including a transfer tax with certain maximum fee functions across different tokens.
  • Done for clients, the human-readable storage of vital information onto an immutable blockchain for safekeeping.
  • Designing peer-to-peer energy trading networks suited for use on Solidity blockchains.
  • Projects utilizing Bluetooth devices which make up a custodial wallet and its respective smart contract.
  • An innovative NFT Marketplace that allows users to engage in lazy minting capability.
  • Digital game creations with Algorand smart contracts guaranteed to deliver fair winnings upon completion.

In conclusion, any foray into blockchain technology with the aim of exchange or preservation of assets requires extensive experience in coding and developing secure trustless systems to ensure successful deployments of chains and contracts through its life cycle. With our talented community of Smart Contract Experts at Freelancer, any client can quickly hire experts to develop their custom project from scratch as long as their ideas are tangible and client can explain clearly what they require. We invite you to post your own project on Freelancer and let our experts help you achieve success!

From 23,898 reviews, clients rate our Smart Contracts Experts 4.83 out of 5 stars.
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    16 jobs found, pricing in USD

    Hey! I'm seeking someone for a long term partnership who can develop an custom blockchain, based on tendermint core or similar that fits all we need. We will have different developing steps and maybe at the end an ICO. You should be able to develop an independent blockchain, so should not be based on cosmos, ethereum etc. So you can use open source code but there should be no dependance to any other blockchain. At the moment we are building a desktop application that will interact with the blockchain. Therefor we need all the nesesary APIs. We will do the integration of the App and the Blockchain. I need to know if you can do the following: General: - Create a custom blockchain prefered with Tendermint Core - Create 2 Smart Contracts - can be built in solidity or similar. - APIs lik...

    $1813 (Avg Bid)
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    Description: Are you a skilled MERN stack developer with experience in Web3 technologies? We're seeking a talented individual to join our team on a freelance basis to assist with the development of cutting-edge decentralized applications (dApps) using the MERN stack and integrating Web3 functionalities. Responsibilities: Collaborate with our team to design and develop decentralized applications (dApps) using the MERN stack. Implement smart contracts and integrate blockchain functionalities using or similar frameworks. Write clean, maintainable code and conduct thorough testing to ensure the reliability and security of the applications. Work closely with designers, product managers, and other stakeholders to translate requirements into technical solutions. Stay updated on emerging te...

    $23 / hr (Avg Bid)
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    I am seeking a highly skilled blockchain developer, with extensive experience and expertise in Ethereum, matic, and Cardano. As this is a blockchain-based project, you must have a deep understanding of how these platforms work. Special consideration will be given to developers who have worked on a similar project before. While the question regarding programming languages was skipped, familiarity with popular blockchain-related languages like Solidity, JavaScript, and Java could add value to the completion of this project. Key Requirements: - Proven experience with Ethereum, Matic, and Cardano. - Understanding of blockchain technology and its application. - Preferred: Knowledge of programming languages (Solidity, JavaScript, and Java). This project needs to be completed as soo...

    $8713 (Avg Bid)
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    I'm seeking an adept blockchain developer with expertise in Ethereum-based smart contract development, specifically for a Decentralized Finance (DeFi) application. Key Requirements: - Proficient in creating Ethereum smart contracts - Solid experience and understanding of DeFi applications - Proven ability to create safe, efficient, and functional DeFi smart contracts. Your responsibility will be to develop a smart contract that runs smoothly, securely, and fulfills all the necessary functionality of a robust DeFi application. The smart contract will be audited independently for security and efficiency, so it's imperative that your work be of high quality.

    $418 (Avg Bid)
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    I am searching for a professional web developer proficient in Solana ecosystem aimed at creating stellar decentralized financial (DeFi) applications. Key Requirements: * Experience in smart contract integration and payment gateway setup. * Ability to implement a minimalistic and clean frontend layout design. * Familiarity with DeFi space and user experience considerations. Given the complexities associated with DeFi, the ideal candidate should have proven ability to navigate the space and have a portfolio of past successful projects. The application must have smart contracts, payment gateway facilities, and simplistic design to ensure an optimal user experience without overly intricate graphics. Animation isn't necessary. If you are confident in your skillset and can deliver withi...

    $51 (Avg Bid)
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    Explaining the functionality and behavior of a token Not big deal.

    $124 (Avg Bid)
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    Looking for an experienced web3 developer, confident using blockchain technology for the updating Dex Key Qualifications: - Proven experience with Dex development - Proficient in Solidity and JavaScript Project Objective: - Build Decentralized Finance (DeFi) and Decentralized Applications (DApps) on the Ethereum platform. This role is best suited for a senior developer with a comprehensive understanding of Ethereum and the associated coding languages. You'll be instrumental in creating innovative DeFi and DApps tools, assisting our team in leveraging blockchain technology to its fullest potential.

    $15994 (Avg Bid)
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    Are you an experienced Decentralized Finance (DeFi) Developer looking to make a meaningful impact in the world of blockchain technology? Look no further! We are seeking a talented individual to join our dynamic team as a DeFi Developer. As a DeFi Developer, you will be responsible for designing, developing, and implementing decentralized applications and protocols that leverage blockchain technology. You will work closely with our team of developers to create innovative solutions that drive the future of finance. Key responsibilities include: - Designing and developing smart contracts for various DeFi platforms - Implementing decentralized applications and protocols on blockchain networks - Collaborating with team members to optimize code and improve performance - Staying up-to-date ...

    $36 / hr (Avg Bid)
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    I'm in need of an individual skilled in getting a specified GitHub project up and seamlessly running on my Windows-based system. Expectations: 1. You need to be experienced in handling GitHub projects 2. Knowledge in Node.js, React and blockchain required. 3. Knowledgeable in MongoDB as the preferred database management system for this task 4. Comfortable with any version of these tools and software as I have no specific preferences

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    I'm seeking a proficient developer to create a simple bot that can execute market orders on Pancake Swap, trading on the Binance Smart Chain network. The bot's core function doesn't require the capacity to detect instant market changes. Key Requirements: - Proficient in bot development, particularly on Binance Smart Chain - Experience with Pancake Swap and familiarity with executing market orders - Ability to create a user-friendly software for bot operations - Strong knowledge of digital tokens and their trading mechanisms Please detail your experience with bot creation, Pancake Swap, and Binance Smart Chain in your bid. Prior related work samples will be highly appreciated.

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    I'm looking sourcing for a blockchain software developer that has the capacity to create a software the can do flash of USDT & BTC The coin should be able to act as a real coin and it should be transferable to different wallets. Features that makes up the Flash USDT * software with 100% completion capable of properly utilizing tokens on TRC20, ERC20, BTC or another network ( main TRC20, ERC20 & BEP20 ) - Transferrable to any latest/active crypto wallet. * one day Transfer limit. (Negotiable) * convertible to specific active cryptocurrencies(BTC,ETH) - [ ] stays active For minimum of 120 days. - [ ] it should be exchangeable on p2p

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    I'm working on a personal project, I am seeking an experienced blockchain developer to create an Ethereum smart contract designed for arbitrage trading across multiple decentralized exchanges (DEXes). The project involves creating a smart contract similar to a provided example, with functionalities for automatically executing trades to capitalize on price differences between tokens across DEXes. The ideal candidate should have a strong background in Solidity and familiarity with the Ethereum blockchain, smart contract development, and DEX protocols. *** I already have an existing working code, I need someone to make the necessary changes for my needs. *** Requirements: - Strong experience in Solidity and smart contract development on the Ethereum platform. - Understanding of decent...

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    I am searching for a well-versed blockchain professional with expertise in smart contract development, cryptocurrency aspects, and blockchain security. This project's primary goal is dual faceted, focusing on enhancing my existing systems' security and transparency and implementing new elements as per the situation's demand. My project needs include but are not limited to: 1. Crafting a blockchain-supported supply chain solution. 2. Implementing blockchain in financial transactions. The ideal candidate for this position would have previous experience in both fields and a robust portfolio of earlier blockchain work. Clear communication, problem-solving skills, and a proactive approach to facing challenges would also be appreciated. If you believe you fit this description, t...

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    After this contest, there is the potential for an ongoing position. I'm seeking a highly experienced Web3 coder an experienced blockchain developer proficient in Solana and distributed ledger technology for a project focused on implementing dynamic smart contract functionalities. Key Responsibilities: - Design and develop dynamic smart contract - Implement upgradable contracts to ensure longevity and adaptability - Utilize your expertise in Solidity to carry out these tasks effectively This project aims to create a dynamic smart contract that can upgrade itself. If you have worked on similar projects or have the necessary skills, your expertise will be highly appreciated. This is not just about writing codes; your innovative input will be an added advantage. Ideal Ski...

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    10 entries

    crear una cryptomoneda en la red de ETH erc20 del mercado RWA

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    Desarrollador web 3 - Solana 6 days left
    VERIFIED

    Necesito la colaboración de un desarrollador web 3 para la creación y despliegue de un token. Requiero de máximo compromiso.

    $133 (Avg Bid)
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    14 bids

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