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!

De 23,502 opiniones, los clientes califican nuestro Smart Contracts Experts 4.86 de un total de 5 estrellas.
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    19 trabajados encontrados, precios en EUR

    I'm looking for a developer with in-depth experience in creating smart contracts on the Ethereum blockchain. Key Requirements: - Develop a multisend smart contract that supports ERC20 tokens. The contract should allow for the distribution of ERC20 tokens to multiple recipients in a single transaction. - Implement pause functionality as a security feature. This is crucial to protect the contract from any potential vulnerabilities or attacks. - We would like to be able to interact with the contract if possible (on etherscan) Ideal skills and experience: - Proficiency in Solidity, the programming language used for Ethereum smart contracts. - Prior experience in developing multisend contracts and incorporating pause functionality. - Knowledge of best practices for smart contract secur...

    €78 (Avg Bid)
    €78 Oferta promedio
    3 ofertas

    I'm looking to have my utility token listed on Coin Market Cap. The token is built on the Binance Smart Chain, establishing its preeminent functionality. A complete whitepaper, illustrating the motive, design, and purpose of my token, is available for reference, conveying a clear project narrative. Ideal Skills: - Knowledge about cryptocurrency, specifically utility token - Understanding of the Binance Smart Chain - Experience in token listing on Coin Market Cap

    €152 (Avg Bid)
    €152 Oferta promedio
    15 ofertas

    We're dividing assets into fractions. We have .sol files related to smart contracts (ERC20 on Ethereum with a bridge on Gnosis). We're in search of an expert who can review these files and determine their functionality for deployment. Should this collaboration proceed smoothly, we're open to establishing a long-term partnership for technical support.

    €206 (Avg Bid)
    €206 Oferta promedio
    15 ofertas
    Solidity expert needed 5 días left
    VERIFICADO

    We're dividing assets into fractions. We have .sol files related to smart contracts (ERC20 on Ethereum with a bridge on Gnosis). We're in search of an expert who can review these files and determine their functionality for deployment. Should this collaboration proceed smoothly, we're open to establishing a long-term partnership for technical support.

    €162 (Avg Bid)
    €162 Oferta promedio
    33 ofertas

    I'm on the hunt for pre-built Web3 games. Further specifications of the game type were left open-ended, so any genre from collectibles, role-playing, to strategy games may be considered. Are you currently working on a Web3 Game? Did you already finish making a Web3 Game? Do you perhaps worked on a Web3 game before and own the rights? We are interested in 1. buying the code and rights 2. Or listing it on our platform This is a unique opportunity where you can sell your existing Web3 Gaming Project to us or list it on our platform. Write down the following: -Platform(s) of the game -Technologies you used to make the game -Concept and type of game (5-10 sentences) -Price estimate I'm NOT looking for someone to build a game from the start!!! You have to have an already working...

    €131 (Avg Bid)
    €131 Oferta promedio
    12 ofertas

    I'm looking for a highly skilled developer with experience with cryptocurrency, blockchain and bot development. The main objective is to assist me in the creation of a bot focused on Initial Dex Offerings (IDO) participation on ChainGPT's Launchpad (). Key responsibilities: - Develop bot functionality for syncing with IDO countdowns - Enable rapid approval of transactions and execution of swaps on the blockchain as soon as IDOs are live Required skills and Experience: - Experience with bot development, especially within the cryptocurrency & space - Clear understanding of IDO participation mechanisms - Strong problem-solving abilities to navigate any technical challenges that may arise during development.

    €168 (Avg Bid)
    €168 Oferta promedio
    47 ofertas

    I'm representing a travel online agency, looking to expand our services into the web3 space through the Camino Network. We are in need of a skilled developer to assist us with the following services: - Smart Contracts Development: As we transition to the web3 environment, we need to establish secure payment transactions within our system. The ideal candidate would have experience in developing smart contracts for e-commerce, specifically within the travel industry. - System Development for Selling/Buying Travel Services: We are also looking for support in building a robust system for selling and buying travel services. This system should seamlessly integrate with the Camino Network, providing a user-friendly interface for both us and our potential partners. The successful freelance...

    €223 (Avg Bid)
    €223 Oferta promedio
    18 ofertas
    Expert Zk-snark Developer 4 días left
    VERIFICADO

    Looking for a talented and motivated Zero-Knowledge Proofs developer to Implement a working product in a different blockchain. Please understand its a porting job to a new evm chain. If you have experience before in using zk snarks we will get along. This is not an on the job training work. Only interested in people who already done this. I am a dev, so please keep that in mind when you quote and estimate time.

    €34 / hr (Avg Bid)
    €34 / hr Oferta promedio
    29 ofertas

    We are currently seeking a talented Web3, Smart Contract, Solidity developer to join our team. The ideal candidate will have experience developing on the EVM chain and a strong understanding of blockchain technology. Responsibilities: Design, develop, and test smart contracts on the EVM chain Implement and deploy decentralized applications using Web3 technologies Collaborate with team members to design and implement new features Keep up to date with the latest trends and developments in the blockchain space Requirements: Proficient in Solidity programming language Experience with and other blockchain development tools Familiarity with Ethereum and other EVM-based chains Strong problem-solving skills and attention to detail Excellent communication and teamwork skills If you are passion...

    €33 / hr (Avg Bid)
    €33 / hr Oferta promedio
    48 ofertas
    Expert TON Smart Contract Creation 4 días left
    VERIFICADO

    I'm searching for a stellar developer who can construct smart contracts on TON. The ideal candidate for this job is someone who understands FunC language like the back of their hand. Key Task: - Develop smart contracts on TON for staking propuse. Preferred Skills & Experience: - Extensive experience in coding with FunC language - Familiarity with TON and its smart contracts - Understands best practices for smart contract development and security This project offers the right candidate the opportunity to show their creativity and problem-solving skills, as there are no set requirements or reference examples to follow. We are ready to hire you right now, and can hire for more project with long time relation. Thx you.

    €521 (Avg Bid)
    €521 Oferta promedio
    16 ofertas

    Job Title: Blockchain Architect for Gaming Innovation Job Description: We're seeking a talented blockchain architect to lead the creation of a pioneering blockchain network tailored for gaming. You'll design and implement smart contracts, collaborate with game developers, and optimize performance for a seamless gaming experience. Requirements: Proven experience in blockchain architecture and development. Proficiency in smart contract development (e.g., Solidity). Creative problem-solving skills and a passion for innovation. Strong communication and collaboration abilities. Gaming industry experience or a strong interest is preferred. Additional Information: Freelance position with flexible hours and remote work option. Compensation based on experience and pro...

    €9288 (Avg Bid)
    €9288 Oferta promedio
    26 ofertas
    Solana Bot Developer 3 días left
    VERIFICADO

    1. First code that reads token adresses from .txt or .csv file and reads if the token is found first time or it second if the first time then buys x amount of SOL or USDC (depends which one is better for you) then if the token adress was already found before then skip, search for other new token addreses in that .txt or .csv Then check current bought tokens price and if the price increased 100% sell out 50% of wallet total token holdings if the price increased 300% sell out 100% ot token, if the price from entry price went down to -90% take out 100% 2. Add function to that primary code before buying check if liquidity pool is locked and mintable then only enter if not skip and wait for new token adress Swap exchange does not matter I prefer Jupiter depends on the price and code complexity

    €197 (Avg Bid)
    €197 Oferta promedio
    26 ofertas

    I'm seeking an experienced blockchain developer to create an Ethereum based ERC-20 token, with unique features of a private pre-sale and a vesting period. Key Responsibilities: - Develop an Ethereum ERC-20 token from scratch. - Implement a private pre-sale phase for initial investors. - Set up a vesting period for token distribution to prevent immediate selling off. Ideal expertise and skills: - Extensive experience in Ethereum blockchain and ERC-20 tokens. - Familiarity with smart contract security, specifically the implementation of a private pre-sale and vesting period. - Ability to create custom functionality beyond standard ERC-20 token framework. For this project, using typical smart contract security method like OpenZeppelin or Consensys Due Diligence is not preferred. ...

    €20 (Avg Bid)
    €20 Oferta promedio
    5 ofertas

    I am seeking a developer to create a tool that can calculate the profit and loss (PnL) for any given Ethereum wallet address. The tool should be able to determine the total number of coins bought, as well as calculate the profit and loss from all transactions associated with the wallet. Key Features: Wallet Address Input: Users should be able to input any Ethereum wallet address. Transaction Analysis: The tool should analyze all transactions associated with the provided wallet address. Profit and Loss Calculation: Calculate the total number of coins bought and the profit and loss incurred from all transactions. User-Friendly Interface: The tool should have a user-friendly interface for ease of use. Skills Required: Proficiency in Ethereum blockchain technology. Experience in cryptocurre...

    €40 (Avg Bid)
    €40 Oferta promedio
    3 ofertas

    I'm in need of a skilled developer who can create a custom module for the Cosmos SDK. This module will be focused on token creation. As I've never worked with the Cosmos SDK before, I require someone who is not only familiar with it but also has a strong grasp of blockchain development and tokenomics. Key Requirements: - Development of a custom module for the Cosmos SDK - Focus on token creation - Expertise in Cosmos SDK and blockchain development The successful candidate will need to be able to understand the project requirements, propose solutions, and implement them effectively. Strong communication skills are essential, as is the ability to work independently and proactively. A proven track record in blockchain development and previous experience with the Cosmos SDK are hig...

    €518 (Avg Bid)
    €518 Oferta promedio
    18 ofertas
    Need to Build Token in solana 1 día left
    VERIFICADO

    Token on solana Name : Make America Great Again Symbol: $Maga Supply : 1 billion Decimals : 9 Tax : 3% buy tax and 3% sell tax(3% to lp and 3% to marketing wallet) *Noone can hold more than 6.7%* (like a supply block) Marketing wallet : GQ5ZVUtoUeLvfAMmUxwMrSNnXacDYSwEZW2abJk2DKcW

    €78 (Avg Bid)
    €78 Oferta promedio
    1 ofertas

    I'm seeking a skilled blockchain developer to design a decentralized finance application, primarily being a cryptocurrency exchange. While particular functionalities were not indicated, let's make sure the platform includes common features such as Buying/Selling Cryptocurrencies, Secure Wallets for Storage, and Real-Time Pricing Tracker. The ideal candidate will have significant experience in creating such platforms, an understanding of blockchain and DeFi, and a commitment to secure, seamless user experiences.

    €19 / hr (Avg Bid)
    €19 / hr Oferta promedio
    4 ofertas
    Need to build token on solana 3 horas left
    VERIFICADO

    Token on solana Name : Make America Great Again Symbol: $Maga Supply : 1 billion Decimals : 9 Tax : 3% buy tax and 3% sell tax(3% to lp and 3% to marketing wallet) *Noone can hold more than 6.7%* (like a supply block) Marketing wallet : GQ5ZVUtoUeLvfAMmUxwMrSNnXacDYSwEZW2abJk2DKcW

    €167 (Avg Bid)
    €167 Oferta promedio
    4 ofertas
    Solana Token Builder Needed 1 hora left
    VERIFICADO

    Token on solana Name : Make America Great Again Symbol: $Maga Supply : 1 billion Decimals : 9 Tax : 3% buy tax and 3% sell tax(3% to lp and 3% to marketing wallet) *Noone can hold more than 6.7%* (like a supply block) Marketing wallet : GQ5ZVUtoUeLvfAMmUxwMrSNnXacDYSwEZW2abJk2DKcW

    €80 (Avg Bid)
    €80 Oferta promedio
    2 ofertas

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