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!

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    13 δουλειές που βρέθηκαν, με τιμές EUR
    Blockchain Development 6 μέρες left

    I'm in need of a highly skilled blockchain developer who can help to build on the Ethereum platform. I have a specific set of functionalities in mind and would need the developer to be proficient in the following areas: - Programming languages: The job requires a strong understanding of both JavaScript and Solidity for successful implementation. - Blockchain Platforms: You should have in-depth knowledge and experience in using Ethereum for blockchain development. - Necessary functionalities: The work involves creating smart contracts, decentralized application development, and Telegram bot integration. This project is both challenging and exciting, and will certainly help you deepen your knowledge and expertise in blockchain development while working with modern, industry-leading te...

    €460 (Avg Bid)
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    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

    €1857 (Avg Bid)
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    3 προσφορές

    I'm looking for a skilled developer to design and build a website that will facilitate crypto funding rounds using the Solana network. This project involves creating a website that can transact with investors and distribute tokens at the end of all the funding rounds. Key elements of this project include: - Developing a site with the following features: Crypto funding rounds, Transaction capability, Token distribution - Using a Solana-based solution - Integrating the site with Crypto wallets - Writing secure Solana Smart Contracts Preferred Platform: ReactJS but open to suggestions Design: A design has already been prepared for the site as in Images and wording but the pages etc need to be setup. Ideal candidates for this project should have: - Proficiency in ReactJS - Experience...

    €1985 (Avg Bid)
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    I'm looking for an experienced developer to create a Solana-based staking app. The app needs to be available on both web and mobile platforms, following a specific design I have in mind. The app should provide advanced-level user interaction, catering specifically to experienced users in the staking ecosystem. Key Requirements: - Proficiency in Solana Blockchain Development - Experience in creating both Web and Mobile Applications - Ability to follow a specific design and layout - Understanding of staking in the blockchain space - Prior experience in developing advanced user interfaces and interactivity Please provide examples of your previous work in Solana development or similar blockchain projects when bidding. We only need US developers. Please do not bid on this job if you...

    €51 / hr (Avg Bid)
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    I'm in need of a proficient blockchain developer to transition our current project on Ethereum from web2 to an enhanced web3 platform. Key Requirements: - In-depth knowledge of Ethereum and web3 - Proven experience in smart contract development Specific Upgrades Needed: - Integrate a smart contract system within our project. The central functionality of this contract will be to streamline transactions and promote efficient interactions. Ideal freelancers should have demonstrated experience in this arena, particularly on the Ethereum platform, and a keen understanding of smart contract integration for transaction facilitation. The project's success will depend on your ability to effectively upgrade our web2 platform to a feature-rich web3 environment while maintaining the inte...

    €35 / hr (Avg Bid)
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    Custom Healthcare Information System Development 4 μέρες left
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    I'm in need of a developer to create a custom healthcare information system for managing patient records, scheduling appointments, and storing research laboratory results and patient consents. Key Features: - Patient Record Management: I need a system that can comprehensively manage patient records. This includes storing essential personal and medical information, as well as the ability to update and track changes over time. - Appointment Scheduling: The system should allow for efficient appointment scheduling. This includes features such as setting up and confirming appointments, as well as sending reminders. - Prescription Management: I also need the system to manage prescriptions for patients, including tracking medication, dosage, and instructions. System Preferences: - ...

    €1879 (Avg Bid)
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    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...

    €531 (Avg Bid)
    €531 Μέση Προσφορά
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    As a web development team, we have a solid foundation but lack in-depth knowledge and experience in web3/blockchain technology. We crave for a senior blockchain engineer to bolster us, especially on Ethereum and Bitcoin projects. • Skills and Experience: The ideal candidate will be proficient in Solidity and Ethereum Virtual Machine (EVM), and have extensive experience developing smart contracts, implementing token creation and integration, minting, and staking. • Responsibilities: The engineer will closely collaborate with our team and jump into our ongoing projects. Long term collaboration is desired. Expect to make significant contributions from sprint planning to deployment. We are excited about the potential advancements blockchain technology can bring to our projects ...

    €83 / hr (Avg Bid)
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    I need help in editing and testing my Solidity code of a new smart contract

    €20 / hr (Avg Bid)
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    Polygon - Marketplace Smart Contract Developments 21 ώρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I'm in need of a skilled web3 and blockchain developer for my project. Specifically, I need development web3 and smart contract developed with solidity for a simple marketplace using the Polygon blockchain. Key duties and deliverables include: - Blockchain integration (provider node - IPFS if needed or not) into already built front-end -integrate wallet for user authentication - Entrust the development of a smart contract for a simple marketplace application - Ensure the smart contract supports purchasing and selling of products I anticipate this contract will provide an excellent opportunity to showcase your strong skills in smart contract, web3, and especially Polygon network development. Experience in working with marketplaces or similar projects would be a plus. Knowledge ...

    €535 (Avg Bid)
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    I'm in search of a skilled blockchain developer to create an NFT marketplace for a open world game on the Polygon network. Key Features: - Wallet Integration: The platform should offer seamless integration with wallets for easy transactions. - Auction and Bidding System: I need an efficient auction and bidding system to enhance the marketplace's functionality. - Wallet Owner Management: The marketplace should support three types of wallet owners and also support blacklisting and I don't have a specific design in mind for the platform, so I'll also require your assistance in designing the layout. Experience in similar projects and a good understanding of Polygon's ecosystem are a plus. Looking forward to discussing the project further with you!

    €439 (Avg Bid)
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    I'm seeking a skilled Blockchain Expert with proficiency in Solana, Rust, and Ethereum for a small but pivotal project in blockchain development. This is the initial phase of a long-term collaboration, so I'm looking for someone who is interested in a continued partnership as well. Your primary responsibilities will include: - Developing smart contracts: You should have a strong background in writing, deploying, and auditing smart contracts on Solana, Rust, and Ethereum. - Creating and deploying tokens: Experience in tokenomics and token creation is key. You will be responsible for creating tokens and deploying them on the blockchain. - Integrating blockchain technology: Your expertise in blockchain integration will help in establishing the project's core functionalities. ...

    €519 (Avg Bid)
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    Trophy icon Solidity Guru for Dynamic Smart Contracts 13 ώρες left

    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...

    €59 (Avg Bid)
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    €59
    28 συμμετοχές

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