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    NFT Marketplace 6 days left

    I am looking for prefect the blockchain developer with NFT Marketplace experience.

    $1246 (Avg Bid)
    $1246 Avg Bid
    13 bids

    Currently have a smart contract that needs the ability to bridge from polygon to Ethereum. We plan on launching on the mainnet soon and would like some assistance with bridging the two networks. I will provide more details upon qualification and acceptance

    $254 (Avg Bid)
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    15 bids

    Looking for full time smart contract developer to join our team Responsibilities Drive high-level decisions about the prePO smart contract architecture Write well-documented, performant, clean, and re-usable Solidity code Collaborate with designers, frontenders, and other developers Work at a rapid pace with a large amount of ownership and autonomy Benefits Sharpen your skillsets from other senior high-performing individuals Fully remote work with flexible working hours Team game nights, team off-sites, and sponsored conference trips Competitive pay with performance bonuses and tokens for long-term contributors Dedicated budgets for learning & development and health & fitness Join a force for good - prePO has made a pledge to dedicate at least 2% of time, product, and profit tow...

    $90 / hr (Avg Bid)
    $90 / hr Avg Bid
    39 bids

    Want a simple website that allows users to create an account and link there social accounts. They can chose to mint any of their social images/videos and sell them. They will have their own profile on the site and people can follow them. Users will be able to share their newly minted images/videos on all socials. all users will be contactable by integrated mailchimp account. I will be able to display ads on the site also. The site itself will be simple and responsive. Full details will be given to awarded freelancer.

    $458 (Avg Bid)
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    42 bids

    I think It will take about 2~3 hours for Expert Have to know about code efficiency, gas optimization, swap, proxy, mapping, I have code sample. I will provide it via private chat Please start bid with "expert".

    $700 (Avg Bid)
    $700 Avg Bid
    6 bids

    Please take in consideration 1- He/She know Defi wallet and stacking 2- He/She know about Centralized Exchange and Trading 3- Minimum 3 yr experience

    $310 (Avg Bid)
    $310 Avg Bid
    8 bids

    We are building the first draft (MVP) of a DeFi web application that allows individuals to earn interest on their crypto holdings. Our app is non-custodial, relying instead on API & smart-contract integration to provide an intuitive platform for first-time DeFi users. Key deliverables: 1) Front-end screens that follow pre-designed Figma layouts 2) Back-end infrastructure that: a) draws on a pre-written Solidity smart contract, b) with data structures

    $2303 (Avg Bid)
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    89 bids

    We are going to build a new language mobile app similar to Duolingo. Importantly there would be added crypto features. We can have a webshop linked to our app basically they could spend our tokens on their protocol. Required skills: React, React Native Kotlin, Swift Solidity, MySQL, SQLite, MongoDB If you have also experience in UI/UX design, it would be great for us.

    $18 / hr (Avg Bid)
    $18 / hr Avg Bid
    40 bids

    We are looking for blockchain expert to create platform for academic certificate verification. The service has a unique signature and time-stamped certificate that can eliminate forgery unlike traditional paper-based documents. Every certificate will be tagged with a QR code linked to the blockchain – a secure, immutable and incorruptible database. Issuing institutions keep a register of certificates on the blockchain represented by the QR code. Authentication of certificates is done by simply scanning the QR code. Thus, the verification process is made simple and transparent. • Issuing institutions can store a register of certificates on the blockchain represented by a unique QR code • The authenticated QR code must be stamped distinctly to the certificate. • Authe...

    $10389 (Avg Bid)
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    21 bids
    Install OpenDax 5 days left
    VERIFIED

    Install OpenDax with about 15 currencies (native, bep20, erc20). Integrate liquidity module.

    $3908 (Avg Bid)
    Featured
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    16 bids

    Hi, I am looking for a Blockchain / solidity developer to Create a Bot to execute Flash loan operations. Looking for a long-term working relationship. Regards

    $19 / hr (Avg Bid)
    $19 / hr Avg Bid
    56 bids

    Need to develop smart contract Will discuss more details in private chat.

    $258 (Avg Bid)
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    51 bids

    Please Sign Up or Login to see details.

    Featured Sealed NDA

    I need a NFT expert and a NFT developer

    $2526 (Avg Bid)
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    34 bids

    hello sir, how much for creating degen simple website with staking app . bnb smartchain

    $176 (Avg Bid)
    $176 Avg Bid
    20 bids

    hello sir, how much for creating degen simple website with staking app . bnb smartchain

    $156 (Avg Bid)
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    17 bids

    Hello, This is about creating a launchpad solution. Key features are attached. Regards.

    $2046 (Avg Bid)
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    32 bids

    Hello guy's I want MLM type plans Smart contract on Binance Smart Chain. features, joining, registration, tree, Plans, single leg, Commission and rewards directly goes into Dapp wallet. BEP20. Sample link similar: Find attached Plans of joining. Best Regard's PB

    $1244 (Avg Bid)
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    21 bids

    Hi Freelancers We are building a DEX platform similar to Pancakeswap or Uniswap and looking for a long term relationship. We are gonna fork Pancakeswap and you will prove your skills during a small test. The test is just to fork this project and run it locally by removing vercel dependency. Please apply for this job after checking the project carefully Place just "Pancakeswap api fork".

    $32 / hr (Avg Bid)
    $32 / hr Avg Bid
    26 bids

    DM me to discuss more in detail.

    $3424 (Avg Bid)
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    35 bids

    Stacking with No lock 1 month lock 3 months lock 6 months lock 12 months lock Irreversible lock. Staking and Rewards: This contract will have some token (sent manually by protocol owner) as reward pool. Those reward pool token will be distributed to users who Stakes or locks their token a. Stacking with no lock: Reward factor is [1x] b. 1 month [2x] >> User will get a receipts that can be converted back after the lock period have passed. c. 3 months [3x] >> User will get a receipts d. 6 months, [4x] >> User will get a receipts e. 12 Month, [5x] >>User will get a receipts f. Irreversible Lock (10x) >> Action a NFT and send this NFT bak to user's wallet. In exchange to this NFT generating process, 30% of user token w...

    $672 (Avg Bid)
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    64 bids

    What I need is super simple honestly just a dapp we’re we will only allow kyc projects to list on we’re when listed they will be tracked as top gainers losers and trending now and when u click on the token u will get some info on the dev team such as past projects there mc and what they did well or not we’ll this making a safe zone for investors

    $553 (Avg Bid)
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    33 bids
    Simple smartcontract code 3 days left
    VERIFIED

    Hello. I need simple smartcontract code need using solidity. My budget is not so big. Please bid only if you can agree this budget.

    $163 (Avg Bid)
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    22 bids

    Hi, i want to build red light green light game in metaverse, only people holding a specific NFT should be allowed to play it. Person with lowest bid will get project, share your references

    $708 (Avg Bid)
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    44 bids

    Hello guy's I want MLM type plans Smart contract on Binance Smart Chain. features, joining, registration, tree, Plans, single leg, Commission and rewards directly goes into Dapp wallet. BEP20. Sample link similar: Find attached Plans of joining. Best Regard's PB

    $376 (Avg Bid)
    $376 Avg Bid
    3 bids

    I want to spend 4-5 days in June with a developer based out Delhi NCR to learn how to code a smart contract in ethereum Solidity knowledge and already developed contract experience required

    $390 (Avg Bid)
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    10 bids

    To create a platform for young enterprising graduates and farmers to raise funds for agricultural projects. Investors can look through the various profiles and invest accordingly. It will use the NFT Marketplace as the payment gateway. In time there should be a marketplace for farmers to sell their products on this platform too.

    $2373 (Avg Bid)
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    31 bids

    Looking for Nft Developer. You will need to work on following points to make our development advanced and unique. Currently I have just GIF(animation available) . - Upload art to IPFS - NFT Minting dApp (minting site with verification, wallet integration and contract integration) - Gas Optimized NFT Upgradable Smart Contract Development Deployment ERC721A . - Contract should have whitelisting, presale, and a giveaway - NFT listed on NFT Marketplaces - Opensea, IMX etc.

    $50 - $100
    Sealed
    $50 - $100
    23 bids

    i alrady have frontend, but need backend and all function

    $602 (Avg Bid)
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    60 bids

    Hello guys. I am looking for blockchain developers who can work with my

    $2655 (Avg Bid)
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    36 bids

    Project Requirements 1. Client has an Apartment buildings and wants to give 1 NFT for 1 house in an apartment to a customer. 2. Launch Coin("KuKu NFT HOMES COIN") pegged to Stable coin(USDT) and using this coin customer will buy the NFT(Apartment house). 3. Create a marketplace where people will BUY/SELL NFTs using "KuKu NFT HOMES COIN"

    $3000 - $5000
    Sealed NDA
    $3000 - $5000
    5 bids
    Solana Expert Needed -- 2 1 day left
    VERIFIED

    Good Solana expert needed. Details will be shared in DM.

    $250 - $750
    Sealed NDA
    $250 - $750
    12 bids
    NFT mint smart contract 1 day left
    VERIFIED

    Hello, Thanks a lot for applying. As a first round, you are tasked to complete a short technical find below the steps to follow: 1) Create an ERC721 contract, which can allow users to mint 1 NFT at a given time, provided they pay a minimum price of 0.01 in ETH. 2) Create a second ERC721 contract, which can allow users to mint an NFT, provided then transfer the NFT from the first contract above to the second contract (which escrows the token). 3) At a later stage, the user can swap back the second NFT back for the first that price is zero for the swap functionality. 4) Finally, deploy all contracts following best practices of Solidity, keeping upgradability and reusability in mind. Please send a public GitHub link, and a deployed contract link on any Testnet of your choice. Good Luc...

    $46 (Avg Bid)
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    23 bids

    I want to create a smart contract with some functions like other contract. If you know how to create contract, dm me, and let discuss for more.

    $560 (Avg Bid)
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    58 bids

    I need help converting my ERC20 token that worths 300usd to ETH, but I can't find liquidity in any DEX, so what can I do? I pay for this job the half, 150usd, and I need to understand the process. I find a way, because a customer of mine wants to change all their ERC20 token to FIAT currency. Thanks.

    $252 (Avg Bid)
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    26 bids
    NFT Blockchain COIN project 22 hours left
    VERIFIED

    Project Requirements 1. Client has an Apartment buildings and wants to give 1 NFT for 1 house in an apartment to a customer. 2. Launch Coin("KuKu NFT HOMES COIN") pegged to Stable coin(USDT) and using this coin customer will buy the NFT(Apartment house). 3. Create a marketplace where people will BUY/SELL NFTs using "KuKu NFT HOMES COIN"

    $5000 - $10000
    Sealed NDA
    $5000 - $10000
    9 bids

    Hi Freelancers We are building a DEX platform similar to Pancakeswap or Uniswap and looking for a long term relationship. We are gonna fork Pancakeswap and you will prove your skills during a small test. The test is just to fork this project and run it locally by removing vercel dependency. Please apply for this job after checking the project carefully Place just "Pancakeswap api fork".

    $826 / hr (Avg Bid)
    $826 / hr Avg Bid
    33 bids

    Hello. I am looking for senior solidity developer. You have experience with token development. This will be long term job if you are good developer. Best regards.

    $538 (Avg Bid)
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    26 bids

    List of tasks: 1. Add Excoincial Blockchain to 2. Do some aesthetic frontend and backend work on such as logo change, colour change, content change. Here is a reference site: and you will do exactly what ZYX Scan has on such as display of graph using API, adding validators, multisender, connecting our bridge to explorer, connecting swap, adding testnet, etc. For the above task I think you have seen ? So should be updated to function like that. - Add logo - Add favicon - Make a few colour changes - Add meta data to the injector so we can manage it easily. - Make EXL price automated - Add price/market chart - Add smart contract verification - Add testnet - Add our social media links. - Optimise speed of the explorer. So basically upgrade to the level of 3. Pro...

    $1482 (Avg Bid)
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    37 bids

    Create the whole world to generate a new Blockchain-based cryptocurrency. Proof-of-stake model, also create the pool and nodes model. Initial product will be based on binance.

    $1778 (Avg Bid)
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    67 bids

    I NEED A DEVELOPER WHO HAVE+ YEAR OF EXPERIENCE IN WRITING SMART CONTRACT. REQ. TO WRITE SMART CONTRACT FOR TOKEN BUY AND USDT DEPOSIT. NEED AN INDIVIDUAL DEVELOPER WHO WILL START ASAP AFTER FINAL DICUSSION.

    $108 (Avg Bid)
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    5 bids
    Create a deposit smart contract 13 hours left
    VERIFIED

    We are looking for someone to be able to do this Task here below: Task -> As ethereum is moving to proof of stake consensus mechanism. we would like you to create a deposit smart contract, where people can deposit X amount (configurable) of Ether. Along with that find a optimal way to create json object necessary for making a deposit into smart contract. json object should contain following fields. (it should follow the eth2.0 spec standard) [ { "pubkey": "", "withdrawal_credentials": "", "amount": 32000000000, "signature": "", "deposit_message_root": "", "deposit_data_root": "", "fork_version": "70000069", "network_name": "kiln", "...

    $192 (Avg Bid)
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    25 bids

    Criei um token BEP20 e quero alterar funções para isso quero um programador que faça um código com as funcoes que eu elaborei. ** Tenho preferencia por programadores que falem PORTUGUÊS.

    $264 (Avg Bid)
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    10 bids