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Blockchain is a distributed register that is used to maintain a continuously growing list of records, called blocks. It has revolutionary applications in finance (such as cryptocurrencies like Bitcoin) and decentralized applications like online voting.

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    82 trabajados encontrados, precios en USD

    I want to build web site like fopay. I am finding developer who have deep experience of foin coin.

    $182 (Avg Bid)
    $182 Oferta promedio
    15 ofertas
    build a nft char 6 días left
    VERIFICADO

    i need a nft for my project if you are a nft char developer ping

    $14 (Avg Bid)
    $14 Oferta promedio
    4 ofertas
    SmartLaunchpad 6 días left

    SmartLaunchpad is the next generation decentralized IDO Launchpad and Incubation zone for DeFi, Gaming, Metaverse & NFT projects Built on Binance smart chain and Polygon Network.

    $349 (Avg Bid)
    $349 Oferta promedio
    8 ofertas

    I want to build a web3 platform for users to claim or buy my new token like yhis project.

    $232 (Avg Bid)
    $232 Oferta promedio
    20 ofertas

    People should able to connect the metamask and mint nfts, not a wordpress site…

    $431 (Avg Bid)
    $431 Oferta promedio
    68 ofertas
    Setup Validator Node 13 horas left
    VERIFICADO

    Setup a validator node on a cosmos blockchain Hello we've already started the process of setting up our validator node and we need someone to continue the remaining steps So far we are at this step To be considered you must answer the question below: Have you setup a validator node before?

    $38 / hr (Avg Bid)
    Urgente
    $38 / hr Oferta promedio
    21 ofertas

    A developer with experience with implementing full nodes for monitoring and handling transactions is required. Experience with Bitcoin Core required Experience with Ethereum Full Nodes (Geth, etc) required

    $2414 (Avg Bid)
    $2414 Oferta promedio
    64 ofertas

    If you have betting sites and casinos already built that you can play with crypto, say I have one, ill then message you and then you send the links. if this does not happen I will ignore you. No third party sites where I have to pay other people to get in. If you want to become a partner we can do that as well.

    $250 - $750
    Sellado
    $250 - $750
    35 ofertas
    php development 6 días left

    Companies (do not bid). only individual developers can bid. I have a few php projects and I need help from a good developer who is not very busy and can assist me in completing them. you should be able to have calls and be engaged.

    $13 / hr (Avg Bid)
    $13 / hr Oferta promedio
    39 ofertas
    Create the NFT collection -- 2 6 días left
    VERIFICADO

    Need to create a collection of NFT of 50 art, based on the game "Grit". You will need to integrate the arts into the game itself through a smart contract. As a basis, you can take collections of Crypto-Punk and BoredApe. Please read carefully and add "I am a NFT creater" to your bid. Regards

    $1113 (Avg Bid)
    $1113 Oferta promedio
    24 ofertas
    Create the NFT collection 6 días left
    VERIFICADO

    Need to create a collection of NFT of 50 art, based on the game "Grit". You will need to integrate the arts into the game itself through a smart contract. As a basis, you can take collections of Crypto-Punk and BoredApe. Please read carefully and add "I am a NFT creater" to your bid. Regards

    $1245 (Avg Bid)
    $1245 Oferta promedio
    21 ofertas

    We want the software to do the below stuff: It should generate Btc Fake Transaction(flash btc) with the below features: - -Defined the time that the transaction can remain in the wallet - -Defined the charges of the blockchain networks for a quick confirmation - -VPN and TOR options included with proxy - -Can check the blockchain address before transaction - -Transaction can get full confirmation - -Support all wallet - -Segwit and legacy address – -100% confirmed transaction - You can spend bitcoins easily on any other address (Segwit address, legacy, Segwit / bch32) - - it works with all wallets. - -Should be tradable like real btc. withdraw from exchange not necessary Can be transfarable wallet to wallet more then 5 times minimum previousr experience are preferred

    $99 (Avg Bid)
    $99 Oferta promedio
    5 ofertas

    I am looking to develop flash bitcoin software that will generate btcs that is tradable, splitable and transferrable- the software should be with the below features: - -Defined the time that the transaction can remain in the wallet - -Defined the charges of the blockchain networks for a quick confirmation - -VPN and TOR options included with proxy - -Can check the blockchain address before transaction - -Transaction can get full confirmation - -Support all wallet - -Segwit and legacy address – -100% confirmed transaction - You can spend bitcoins easily on any other address (Segwit address, legacy, Segwit / bch32) - - it works with all wallets. - -Should be tradable like real btc. withdraw from exchange not necessary -Can be transferable wallet to wallet more then 5 times minimum -I c...

    $211 (Avg Bid)
    $211 Oferta promedio
    3 ofertas

    Hello, contact me for more details

    $523 (Avg Bid)
    $523 Oferta promedio
    31 ofertas

    Do token contract in kadena blockchain

    $258 (Avg Bid)
    $258 Oferta promedio
    20 ofertas
    Pancakeswap fork 5 días left
    VERIFICADO

    Hello everyone, I want to fork pancakeswap site. If you have experience please bid. You Must Have Experience! Thanks

    $433 (Avg Bid)
    $433 Oferta promedio
    16 ofertas

    Looking for an experienced article writer in the blockchain industry who will write 4 articles per month about our project. Each article will be 800-1000 words long it will be contract based to pay per article. We need someone that is extremely passionate and the only way to know you are is by owning some crypto yourself, do you own some crypto or NFT?

    $1927 (Avg Bid)
    $1927 Oferta promedio
    30 ofertas
    Trophy icon Cryptocurrency trading strategy 5 días left

    Hello, We have been running several cryptocurrency trading rules on the following platform: But we are looking to have new set of rules that work on ANY market conditions, thats why we are looking for the best performing strategy someone can come up with and the one that wins will win the contest. Please submit all rules under seal

    $2000 (Avg Bid)
    Destacado
    $2000
    12 participaciones

    please this is a partner appeal, we need a very good expert in mobile java app developer and blockchain and php codigineter developer, the first work i wish to do is to modify our existing app by 1 making refer code work without hiting a separate icon, then 2 add new explain button for vidoe explanation,no 3 chat and registration fixing which all he need to do is to add the sha-key the reupload it on google playstore

    $171 (Avg Bid)
    $171 Oferta promedio
    19 ofertas

    I need a cryptanalyst who will tell me how to make my game better, what are the minuses and pluses in it. It also happens that the game does not start, this also needs to be fixed.

    $86 / hr (Avg Bid)
    $86 / hr Oferta promedio
    5 ofertas
    NFT Marketplace 4 días left

    We are looking for devs who can help us with our NFT marketplace project that is built on both the Ethereum network and Solana. This will be something similar to OpenSea / MagicEden. We have all the smart contracts ready (both for Eth and Sol) but need to now: implementation of the Figma UI mockup (Figma page is done so need to do API calls and the business logic mapping etc). Build the following features that are currently not there on the backend: NFT indexing for both Eth and Sol Wallet Analytic modules -wallet analytics based on user transaction NFT analytic modules- create analytics for NFTs owned by a user NFT loan module - connect existing smart contract with UI, business logic, etc Order Book feature: the ability for a user to place an order for an entire collection, a part...

    $6501 (Avg Bid)
    $6501 Oferta promedio
    29 ofertas
    trading exchange app white label 4 días left
    VERIFICADO

    Deadline: 3 weeks Hello we are looking for a trading white label platform to be used immediately please bid only if you already have completed similar project Crypto backend python front end something smooth for mobile and desktop I need something similar to binance i am looking for open source project to implement immediately white label solution

    $5000 - $10000
    Destacado Sellado Acuerdo de Confidencialidad
    $5000 - $10000
    19 ofertas

    create a minting bot that can be used on

    $2341 (Avg Bid)
    $2341 Oferta promedio
    32 ofertas

    Only US Native please. NO INDI, BANGI, PAKI PLEASE I generally need advice and guidance with accounting, book keeping and taxes. I need someone that can help me with initial clean up or my QuickBooks online (specifically in the area of invoicing, salaries, dividends, segregation of accounts, liability accounts and taxes) and give me basic coaching on how to manage the account onwards. Obviously, as a small business, budget is a main factor for me and I would like to know how you would be able to price this out reasonably for me.

    $1307 (Avg Bid)
    $1307 Oferta promedio
    24 ofertas
    Pancaleswap lottery fork 4 días left
    VERIFICADO

    I am looking for an expert who is very familiar with the PancakeSwap Dex, especially the lottery. As you know, Pancakeswap uses cakes to buy lottery tickets. I want to change to BUSD. If you do well on this project, I'll hire you on a big, upcoming project.

    $229 (Avg Bid)
    $229 Oferta promedio
    26 ofertas

    i want to create unique cryptocurrency and list it on exchange platforms , i need experts in this field

    $12 / hr (Avg Bid)
    $12 / hr Oferta promedio
    18 ofertas

    I am the owner of a crypto game, I need a person who will talk about the shortcomings of the game and its advantages, help me analyze my project. Looking for someone with good investment experience NFT/Crypto.

    $88 / hr (Avg Bid)
    $88 / hr Oferta promedio
    7 ofertas

    This is for a min-project that is part of a project funded by my university. I am looking for someone who can help in building an MVP as part of this project. The candidate can start immediately. The project duration is 5 months, you can work as part time or full time depending on your availability. The project revolves around creating a governance policy for a crypto wallet. The wallet creator should be able to specify the list of eligible signers (approvers) based on their DIDs. That will be the first task. Please let me know your thoughts and if you have any questions. We can have a quick chat to see if we can be a good fit. Many thanks. PS. This is for UK-based developers only (Restriction from the funder)

    $53 / hr (Avg Bid)
    $53 / hr Oferta promedio
    6 ofertas

    Hi all, We are looking for an experienced team of Blockchain developers. the project consist: - Creation of our own coin - Fiat and Crypto wallet - Purchasing of other coins using our stable coin - Transfer coins from one account to another account - Bill payments - Provide loans We can discuss the scope of work in more detail during the interview process. Thanks & Regards, Deepak

    $5398 (Avg Bid)
    $5398 Oferta promedio
    27 ofertas

    Hello! My name is Curtis Felix. I 'm going to build swap site. I want to be a blockchain and web expert.

    $8882 (Avg Bid)
    $8882 Oferta promedio
    40 ofertas

    NOTE:REMIX JS IS NOT REMIX IDE (SMART CONTRACT). Remix JS Framework are the skills I need (). Please ONLY bid if you have Remix JS experience. I have code that is written in NextJS and uses the Stitches CSS framework. This website is not live and the code is partially incomplete but has all the frontend and logic. "A lot of the work has already been started on, so you won't need to start from scratch." This phase of the project will be to rewirite the frontend code using RemixJS framework and remove any component that is not required. Backend integration will be with Cloudflare Pages/Workers, GraphQL. The Ethereum blockchain references would be rewritten to use the Hedera Hashgraph DLT. You must be proficient in Next JS and have strong experience with RemixJS fram...

    $741 (Avg Bid)
    $741 Oferta promedio
    76 ofertas

    hello, i would like to create a decentralized exchange like but on solana. in order to have a decentralized exchange without blockchain fees I'm really looking to make a trading platform as fun as possible. with the ability to take and modify these orders directly on the chart I like Binance, , derebit, but I think they are too complicated for a public not informed enough.

    $5292 (Avg Bid)
    $5292 Oferta promedio
    22 ofertas

    We have a web service made in Golang that needs to connect via Websocket to a smartcontract made in the BSC blockchain, the smart contract is programmed in solidity. Currently we are unable to connect and receive the events emitted by the smart contract. We need advice on the connection method.

    $53 (Avg Bid)
    $53 Oferta promedio
    14 ofertas

    BLOCKCHAIN BITCOIN FLASHING SOFTWARE I am looking for a developer who can develop the BITCOIN, ETHEREUM Flashing Software in main network (windows based, preferably windows 10), the requirements are mentioned below, 1) The software can perform flash of the BTC and Ethereum, as well as the flashed BTC and Ethereum should be transferable from one wallet to 10 wallets and with confirmation is appreciated. since it is flash btc it must be visible in BTC wallet address for 90 days. There will be no transaction fee while sending from "flash s/w" to "btc wallet" as it will be no confirmations. eg:- If we send from bitcoin flashing s/w to 1 wallet, it must support sending btc to 10 wallets also no problem must arise. It will be displayed till 90 days note:- Screen will have...

    $554 (Avg Bid)
    $554 Oferta promedio
    38 ofertas

    If you have crypto betting gams, casinos or anything that makes money with crypto, dm me tell me what you have Ill buy it and then reskin it myself or you can for a good price. I will only reply to pepople that lists what type of games they have.

    $250 - $750
    Sellado
    $250 - $750
    26 ofertas

    Hello. I have a project that transfer all the NFT in a wallet to another wallet through a seaport transaction. The project is already made. You can connect wallet, fetch the NFT in the wallet and open the seaport transaction. But the transaction is always reverted. I need to fix that

    $163 (Avg Bid)
    $163 Oferta promedio
    50 ofertas
    Looking for an AI expert 3 días left
    VERIFICADO

    We are looking for an AI ( Artificial Intelligence) expert who has done projects related to blockchain technology and web 3.0. We need to add that service to our website in order to provide to the potential client Shortlisted will be interviewed online

    $679 (Avg Bid)
    $679 Oferta promedio
    29 ofertas

    If you have crypto betting gams, casinos or anything that makes money with crypto, dm me tell me what you have Ill buy it and then reskin it myself or you can for a good price. I will only reply to pepople that lists what type of games they have.

    $250 - $750
    Sellado
    $250 - $750
    36 ofertas

    Need support in designing Charts using Graphql charting libraries

    $108 (Avg Bid)
    $108 Oferta promedio
    6 ofertas

    Please must write the experience you have forked bridge and explorer with website links. I'll never chat anybody who can't share your prove of this experience. I'm looking for blockchain dev who can bridge and explorer quickly as well. Please share the experience of bridge and explorer fork. Don't apply if you don't have experience.

    $1406 (Avg Bid)
    $1406 Oferta promedio
    26 ofertas

    I'm looking for blockchain dev who can bridge and explorer quickly as well. Please share the experience of bridge and explorer fork. Don't apply if you don't have experience.

    $1485 (Avg Bid)
    $1485 Oferta promedio
    20 ofertas

    I am seeking an experienced blockchain dev with profound knowledge and competent in blockchain, especially in Ethereum/Solidity, Smart contract security expertise. Please propose to this job once you have well experience and considerable past works. Good luck

    $557 (Avg Bid)
    $557 Oferta promedio
    49 ofertas

    Looking for a freelancer to create custom tools in an ongoing manner from standard tools to web3 based ones. Tools will vary from a bulk url media downloader (list of image URLs input, autosave media in those URLs to a specified location), some web3 tools like downloading the tokenID's owned of a specific contract for a specific wallet address, and so on. Efficiency tools lets call them. Would like to access these tools in a central dashboard, doesn't have to be fancy, however, I can also design them in figma if needed.

    $1187 (Avg Bid)
    $1187 Oferta promedio
    75 ofertas

    I'm looking for blockchain dev who can bridge and explorer quickly as well. Please share the experience of bridge and explorer fork. Don't apply if you don't have experience.

    $1323 (Avg Bid)
    $1323 Oferta promedio
    46 ofertas
    Create a Crypto Wallet 2 días left
    VERIFICADO

    ONLY Apply if you have the full source code. No New Development. Only working with people who has full source code. I am a developer, so please dont waste your time discussing and convincing me. I wont be convinced. Create wallet Secret key suport like metamask with 12 words Import wallet Import token Qr code scanner Transaction history Sending and receiving Conservation of coins Access with two-factor or biometric authentication QR code scanner coins Swap functions . Notification View your wallet balance Advanced chart Adding coins Detailed market analysis Real-time market analysis with marketing balance Social media news and advertising Fully customized technical indicators Private wallet and more advanced features Custom token on top of BTC Swap fees go to a wa...

    $1536 (Avg Bid)
    $1536 Oferta promedio
    59 ofertas
    crypto developer 2 días left

    for developing mining tool to earn crypto

    $166 (Avg Bid)
    $166 Oferta promedio
    30 ofertas
    Nomad freelance 2 días left

    We are building tech and network for facilitating a job trade without the need for third parties - by imposing trust in recruitment, removing organizational overhead, and enabling free internal trade - in a decentralized manner.

    $26 / hr (Avg Bid)
    $26 / hr Oferta promedio
    48 ofertas
    Build me a crypto exchange 1 día left
    VERIFICADO

    Hello there! We are looking for a developer who can create an exchange for us like 'wazirx'. Please mention I read it in the beginning of your proposal, as we will not consider proposal without this. The exchange should have, registration, KYC, deposit, withdrawal and trading available in it. Also please share your related work if any. Also, find the below link for more details:

    $5086 (Avg Bid)
    $5086 Oferta promedio
    24 ofertas
    Install/optimize React Site/Game 1 día left
    VERIFICADO

    Looking for someone to install and help me get my website running on the server, simple task, must be ready to work now. Some Blockchain experience is required

    $154 (Avg Bid)
    $154 Oferta promedio
    56 ofertas