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    50 trabalhos encontrados, preços em USD
    NFT Marketplace 6 dias left

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

    $1185 (Avg Bid)
    $1185 Média
    5 ofertas
    Ethereum polygon smart contract 6 dias left
    VERIFICADO

    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

    $269 (Avg Bid)
    $269 Média
    14 ofertas

    I am looking for a Blockchain / solidity developer to create NFT collection.

    $65 / hr (Avg Bid)
    $65 / hr Média
    57 ofertas

    1- User system with wallets and twitter login (some admin wallets) 2- Join raffles with paying SOL/AVAX, admins will be able to set raffles, Time limits for each raffle, picking a winner with randomness algorithms 3- UI integration

    $4354 (Avg Bid)
    $4354 Média
    13 ofertas

    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 Média
    6 ofertas

    Need a nft creator and smartcontract creator

    $133 (Avg Bid)
    $133 Média
    13 ofertas

    I am looking for someone who can write a technical paper around our my smart contract concept

    $78 (Avg Bid)
    ADC
    $78 Média
    32 ofertas
    NFT project 5 dias left
    VERIFICADO

    Hello, We need to create smart contract for token and staking pool for NFT. Project, important, on ETH for staking pool and token will be on eth or polygon or immitable x ( is layer of eth ) we will define this together in chat room on freelancer. Thx you.

    $526 (Avg Bid)
    $526 Média
    114 ofertas

    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)
    $2303 Média
    89 ofertas

    I have an urgent project. Our goal is to develop NFT minting bot on solana. If you have an experience in it. please send me message. Best regards.

    $772 (Avg Bid)
    $772 Média
    30 ofertas

    hello i would like to make a crypto currency for a charity. i would like to make a presale contract and build it inside the website so everyone can buy directly in the website.

    $101 (Avg Bid)
    $101 Média
    42 ofertas
    Blockchain / Solidity Developer 5 dias left
    VERIFICADO

    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 Média
    56 ofertas

    I need a NFT expert and a NFT developer

    $2526 (Avg Bid)
    $2526 Média
    34 ofertas

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

    $2046 (Avg Bid)
    $2046 Média
    32 ofertas

    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)
    $1244 Média
    21 ofertas

    DM me to discuss more in detail.

    $3424 (Avg Bid)
    $3424 Média
    35 ofertas

    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)
    $672 Média
    64 ofertas

    Anyone that has ever made a crypto betting machine, reach out to me and tell me your price for it. must have a demo. Say "I have one" and Ill reply.

    $250 - $750
    Secreto
    $250 - $750
    29 ofertas
    crypto trader machine 4 dias left
    VERIFICADO

    I need a crypto trading bot that charges a fee every time it makes money. Profit.

    $30 - $250
    Secreto
    $30 - $250
    15 ofertas
    Relaunch crypto token -- 2 4 dias left
    VERIFICADO

    Need to relaunch Crypto token. Need help on re airdropping the tokens people have and other things that goes into relaunching. I will hire the person that seems to know the most about relaunching.

    $30 - $250
    Secreto
    $30 - $250
    24 ofertas

    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)
    $553 Média
    33 ofertas
    Simple smartcontract code 3 dias left
    VERIFICADO

    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)
    $163 Média
    22 ofertas

    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)
    $708 Média
    44 ofertas

    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 Média
    3 ofertas

    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)
    $390 Média
    10 ofertas

    develop a real estate system with tokenization in decentralized storage based on blockchain with smart Contracts and high privacy and light scalability + PhD thesis

    $1317 (Avg Bid)
    $1317 Média
    41 ofertas

    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
    Secreto
    $50 - $100
    23 ofertas

    i alrady have frontend, but need backend and all function

    $602 (Avg Bid)
    $602 Média
    60 ofertas

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

    $2655 (Avg Bid)
    $2655 Média
    36 ofertas

    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
    Secreto ADC
    $3000 - $5000
    5 ofertas

    I want to make a social platform connecting with wallet for example metamask very similair like this website: metafora.app. So its like twitter. all those functions, of posting messages pictures vids, sharing retweeting liking. Profile making with picture. Wireframes are attached

    $162 (Avg Bid)
    $162 Média
    2 ofertas
    Solana Expert Needed -- 2 1 dia left
    VERIFICADO

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

    $250 - $750
    Secreto ADC
    $250 - $750
    12 ofertas

    Create ERC 1155 smart contract for 2k NFT's Connect Json/Metadata to ERC 1155 smart contract Bulk Upload 2k NFT's to OpenSea

    $513 (Avg Bid)
    $513 Média
    85 ofertas

    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)
    $560 Média
    58 ofertas

    Hello, devs. I am looking for a rust developer who is proficient in cosmwasm smart contract development on Juno, Secret Network. The task is trefactoring Secret Contracts into Juno Contracts. Both of them are building with cosmwasm and the projected is purely related with rust(cosmwasm). It is ongoing project. Please feel free to send a proposal if you exp on them.

    $217 (Avg Bid)
    $217 Média
    22 ofertas

    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)
    $252 Média
    26 ofertas

    Hello developers I need a program that create liquitidy for ERC20 tokens without liquidity in several DEX like uniswap or pankakswap or others. More details will be given privately Thanks.

    $313 (Avg Bid)
    $313 Média
    35 ofertas
    NFT Blockchain COIN project 23 horas left
    VERIFICADO

    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
    Secreto ADC
    $5000 - $10000
    9 ofertas
    Upload NFT on solana 21 horas left
    VERIFICADO

    I need to upload 1 mp4 NFT on solana but allow it to be minted 14500 times, could you get the way to do it ? I need it now

    $24 (Avg Bid)
    $24 Média
    12 ofertas

    Hello, We need a developer to build our inventory/SCM utility token and blockchain ecosystems on Algorand. A. Scope of Work - There are three phases as below; 1. The first step will be to create and deploy tokens on Algo Mainnet with API development to link the DApp and/or ICO website. 2. Algorand based Smart Contract development to enhance its functionality and scalability. 3. Integration to the DApp and ensure functionality and scalability with workmanship B. Architecture/Language - Python with Algorand SDK and/or Pyteal (NO SOLIDITY) - Blockchain algorithm: ASA C. Terms & Conditions - Backdoor-proof, security audit should be included on each phase - Testing on testnet, bug-free, QA, UAT testing included. - Multichain; we may use multiple networks and/or s...

    $2682 (Avg Bid)
    $2682 Média
    43 ofertas

    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)
    $538 Média
    26 ofertas

    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)
    $1482 Média
    37 ofertas

    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)
    $1778 Média
    67 ofertas

    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)
    $108 Média
    5 ofertas
    Create a deposit smart contract 15 horas left
    VERIFICADO

    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)
    $192 Média
    25 ofertas
    SAFUU Fork -- 2 15 horas left

    I want to fork safuu project . 250$

    $217 (Avg Bid)
    $217 Média
    10 ofertas

    I'm urgently looking for a fully customizable cryptocurrency wallet and funds manager written in python 3, that can safely and efficiently move funds between addresses and to and from all large CEX's and DEX's. I need this application to be customizable so that I can implement it as part of cryptocurrency trading bots that I am developing. The funds manager application should be compatible with BTC, USDT and XMR, and also allow for payments to and from legacy, bech32 and segwit btc addresses. I need to be able to send instructions to the funds manager through a command prompt as well by calling it in python applications. This project is fairly time-sensitive and I would like to have a working result within a few days if possible.

    $530 (Avg Bid)
    $530 Média
    14 ofertas

    be able to add the information of the network in the database so that it works with metamask. 2. Being able to Add the Currency, Network Fee in currency value and Page Fee, Being able to enable which input and output networks will be available for that currency, the commission will only be for the output network. 3. Configure the Private Key and the Address of each network where the funds will arrive, with the Private Key it will be executed to send the funds to the outgoing network that the client requested. 4. The client connects with metamask to choose the input network with which to send the funds, if you give an example: 100 USDT from the BEP20 network, and choose the output network: ERC20, the commission for the output network ERC20 will be calculated According to how it was conf...

    $1523 (Avg Bid)
    $1523 Média
    34 ofertas

    Finding Unity expert. If you are right candidate then will give requirements in detail.

    $258 (Avg Bid)
    $258 Média
    7 ofertas

    HEROIC DEVS NEEDED! Want to make history? Want to help build web4 and web5? Want to see what the future holds? Want to build what comes after metaverse? The Omniverse, the digital twin and simulation of life... Want to see what comes after XR? IR (Infinite Reality) where the boundary between virtual and reality blurs into one... Want to build a digital twin of the world on a ambitious AR Geolocation unity game designed to help get people back into nature and become more healthy? Want to build a revolutionary MMORPG game in unreal engine 5 using real time biofeedback and emotional tracking? Want to work on a project that will help heal people, animals, the environment and help create a better world where we can all live in harmony? Want to be a hero? Then we want to hear from you...

    $13183 (Avg Bid)
    $13183 Média
    26 ofertas

    Artigos da Comunidade dos Principais Smart Contracts