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    22 jobs found, pricing in USD

    I'm seeking a senior smart contract developer for Cardano network. If you have good experience with Haskell, then it would be great for us.

    $21 / hr (Avg Bid)
    $21 / hr Avg Bid
    11 bids

    1: Build a parcel place with 44,000 spots 52x52 squares 2: as you walk over the squares the parcel will light up 3: add a mini map that shows the coords for the work. 4: Make charters able to see each other online 5: Import building ability through 3rd party software after purchase of land 5: Bonus for adding voice 6: Bonus for adding building in the middle that is not buyable Build a parcel place with 44,000 spots On a flat board with a mini map and a person able to run around it and see each square for sale. The map can be blank like a net and the people that run around can be imported from ready player me And the land connects to Metamask and takes BNB and ETH. Must be able to see each other online. If you can do this we will spend a lot more on the actual building out ...

    $250 - $750
    Sealed
    $250 - $750
    24 bids
    ERC721 Protokoll 6 days left
    VERIFIED

    We are looking for a ERC721 Developer for our new Startup. We are looking for someone who is able to setup a whole NFT launch and Minting process.

    $2457 (Avg Bid)
    $2457 Avg Bid
    89 bids

    we have a smartcontract under ETH where our NFTs are, and we have developed a browser game but with a Polygon smartcontract and what we would like to do is to be able to bridge Polygon to ETH so that we can recover data from the NFTs

    $167 (Avg Bid)
    Urgent
    $167 Avg Bid
    41 bids

    You need to create a smart contract which do buy and sell in same block using sandwich trading. You must have done that successfully in past.

    $346 (Avg Bid)
    $346 Avg Bid
    10 bids
    IOTA SMART CONTRACT PROJECT 5 days left
    VERIFIED

    WE WANT TO DEVELOP OUR TOKEN WITH IOTA BLOCKCHAIN , WE NEED TO HAVE SMART CONTRACT WE NEED LINK TO OUR WEBSITE WALLET HAVE TO WORK WITH DEVINET

    $1727 (Avg Bid)
    $1727 Avg Bid
    9 bids

    Need smart contract developer BSc for presale contraction n testing. Developer from India only

    $8 / hr (Avg Bid)
    $8 / hr Avg Bid
    10 bids

    Need a smart contract developer for smart contraction interaction ico contract with the front end. need from India only.

    $5 / hr (Avg Bid)
    $5 / hr Avg Bid
    12 bids
    Dynamic Flashloans Execution 4 days left
    VERIFIED

    * First Milestone Given an atomic transaction ID, we need an API call that returns whether it is profitable to copy/imitate that transaction in the current time. is one example of these transactions. The guy who did this transaction started with 0.027497 BNB, swapped them to Kinka token via Pancakeswap, then sold them on Apeswap and ended up with 0.029699 BNB. The profit from this transaction is around 0.002 BNB. We will be probing transactions on BSC to avoid high gas fees. I will ask you to deploy this API somewhere to be able to call it without knowing the code yet. You'll give us at least two days where we will test your API against multiple transactions. If the similar transaction deems to be not profitable your code will test with a smaller amount and return the profitable ...

    $512 (Avg Bid)
    $512 Avg Bid
    17 bids

    im looking for a django developer to create and develop a backend. the project front end is developed with flutter, so I prefer the developer to have some dart knowledge as well. the app might require a smart contract connection to it.

    $112 (Avg Bid)
    $112 Avg Bid
    35 bids
    I need a JS knight 3 days left
    VERIFIED

    Hello, to reinforce our team I need someone with very strong skills in js web developement. I'm looking for someone highly skilled who can create things like Also, if possible some web3 knowledge will be appreciated. We are regularly working on web3/crypto projects and I need someone who has a little idea about this, even if for now it's more about "pure dev" like the website above, there are also some "real"web3 projects.(smart contracts deployment etc.) I would like really someone who knows perfectly react js or similar. Please send me your portfolio and if possible a link to your pro page or at least some previous work. Thanks in advance.

    $30 / hr (Avg Bid)
    $30 / hr Avg Bid
    70 bids

    Swap Trading Tool Page Project Requirements: 1. Integrate 1Inch multichain aggregator swap api with income from fees 2. Short sell orders function 3. Limit buy and sell orders function 4. Stop loss orders function 5. P2P swap function 6. UI similar to 1inch UI 7. Full code documentation 8. Testnet testing 9. Edits and fixes 10. Live launch

    $2436 (Avg Bid)
    $2436 Avg Bid
    53 bids

    We are looking for a developer to create a Smart Staking Token based on TRC-20. The developer should be familiar with TRC-20, Tokennomics, and Web Wallet Integration to create a functional and economically sound token. The token's total supply will be 54cr, divided among public offerings, dividends, referral awards, management funds, airdrops, etc. This will be hard-coded into the decentralized smart contract. There is a lot more which is impossible to discuss in this job post. The developer should have a good understanding of the cryptocurrency landscape and be able to provide insights into the token design. The candidate should also be familiar with cryptocurrency exchanges/ The successful applicant will work closely with our team to develop a professional website and whitepaper...

    $310 (Avg Bid)
    $310 Avg Bid
    18 bids

    Looking for a developer for a small business. This also includes an integration of smart contact, and other technical details

    $1818 (Avg Bid)
    $1818 Avg Bid
    18 bids
    Crypto casino 1 day left
    VERIFIED

    Looking for a crypto casino that someone has already built. Must be online and able to play against each other for tokens and have at least one slot machine.

    $250 - $750
    Sealed
    $250 - $750
    54 bids

    Make a blank flat land metaverse with parcels for sale, online, with a mini map and people running around it. People will be able to buy their parcels and upload what they want in their space. Get this done in and smart contracts. You must be able to import the metaverse property from some source. Build a parcel place with 44,000 spots On a flat board with a mini map and a person able to run around it and see each square for sale. The map can be blank like a net and the people that run around can be imported from ready player me And the land connects to Metamask and takes BNB and ETH. Must be able to see each other online. If you can do this we will spend a lot more on the actual building out of the system. If you cant do this simple task within 250 to 300 dollars dont apply. ...

    $250 - $750
    Sealed
    $250 - $750
    25 bids

    Looking for 1-2 Senior Solidity Developers, can be part-time (10-20 hrs a week) or full-time: Requirements: * Familiarity with Test-Driven Development. * Have experience developing well-designed REST APIs. * Understanding of Blockchain architectural design patterns as well as supporting infrastructure. * Expertise in providing end-to-end solutions (Life Cycle for infrastructure including SDLC). * Knowledge of ERC20, ERC721, and other protocols. * In-depth knowledge of blockchain logic. * Understanding of fundamental encryption mechanisms. * Experience in peer-to-peer networking. * Understanding of Smart Contracts and consensus techniques, as well as experience developing blockchain apps or proofs-of-concept (POCs) in Solidity on Ethereum. * Hands-on development expertise in the following ...

    $35 / hr (Avg Bid)
    $35 / hr Avg Bid
    69 bids

    I want to know if you can help me with one thing. I am a professional bettor and I have a Betting Tipster service in Football (Soccer). I want to know if is possible to create a Smart Contract with my bets and link to Decentralized Betting Bookies? For example all the costumers send the money to the one wallet and that wallet will manage the money and betting according to the strategy. And the profit will be shared to all the accounts according to the time that we define.

    $580 (Avg Bid)
    $580 Avg Bid
    40 bids
    NFT project 1 day left

    I need someone who can help me fixing some issues with a nft project

    $552 (Avg Bid)
    $552 Avg Bid
    59 bids

    Make a blank flat land metaverse with parcels for sale, online, with a mini map and people running around it. People will be able to buy their parcels and upload what they want in their space. Get this done in and smart contracts. You must be able to import the metaverse property from some source. Build a parcel place with 44,000 spots On a flat board with a mini map and a person able to run around it and see each square for sale. The map can be blank like a net and the people that run around can be imported from ready player me And the land connects to Metamask and takes BNB and ETH. Must be able to see each other online. If you can do this we will spend a lot more on the actual building out of the system. If you cant do this simple task within 250 to 300 dollars dont apply. ...

    $250 - $750
    Sealed
    $250 - $750
    22 bids
    NFT marketplace . Ended
    VERIFIED

    Development/ design NFT marketplace/auction for pictures 1: users sign-in/sign-up 2: upload his own pictures. 3 other users vote on pictures 4: can buy or sell or auction that pictures Note : my budget not up 30$

    $20 (Avg Bid)
    $20 Avg Bid
    2 bids

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