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. Palkkaa Blockchain Developers

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    We are seeking crypto professionals in NYC! We are seeking everything from white paper contributors to developers and smart contract professionals.

    €1096 (Avg Bid)
    €1096 Keskimäär. tarjous
    3 tarjoukset

    !! READ the REQUIREMENTS before you knock !! You are expected to have good knowledge on areas such as; blockchain attacks/crypto-threats/solidity/Hyperledger/Smart-contract/Hash-Algorithms/51% attacks/Sybil attack/. You will be provided with any online books/Journals/articles that you will ask for regardless of how expensive they are. Programming skills required and essential. Your task ...

    €2 - €6 / hr
    €2 - €6 / hr
    0 tarjoukset
    MultiSig Wallet App iOS/Android 6 päivää left
    VARMENNETTU

    MultiSig Wallet App iOS/Android Ability to Buy and Swap crypto using [kirjaudu nähdäksesi URL:n] API Trade crypto using user existing API (binance, coinbase pro, [kirjaudu nähdäksesi URL:n]) Send and Receive Crypto Wallet Creation inc Import and Export feature Live chat support Design will be supplied and API

    €1998 (Avg Bid)
    €1998 Keskimäär. tarjous
    18 tarjoukset
    CRYPTO CURRENCY 6 päivää left
    VARMENNETTU

    developer that know Blockchain with experience with cryptonote technology sources.. like Monero and/or Bytecoin to add on our official developer team.

    €633 (Avg Bid)
    €633 Keskimäär. tarjous
    10 tarjoukset

    We are working on using barcodes, app , USSD or another simple tech that will be used to receive data in low income communities which will be stored using blockchain tech

    €220 (Avg Bid)
    €220 Keskimäär. tarjous
    8 tarjoukset
    partners (ONLY) in Partnership 6 päivää left
    VARMENNETTU

    I am looking for partners for a new Crypto project create wallets, create token, pre sale site (ICO) we can discus about your implication possibility

    €327 (Avg Bid)
    €327 Keskimäär. tarjous
    2 tarjoukset

    This project is only for senior experts who have proven experiences in mobile wallet of several digital assets. Need to provide several digital assets like BTC, ETH, Monero, .. Send, Receive, Exchange between assets functions to be implemented Need import/export private key Backup wallet function need Provide multi Language Hybrid both possible

    €3745 (Avg Bid)
    €3745 Keskimäär. tarjous
    33 tarjoukset

    Looking to hire someone who is familiar with c++ and blockchain development to prepare a Qt creator dev ready environment for [kirjaudu nähdäksesi URL:n] on Windows 10 VM. *MY BUDGET IS 40 AUD*

    €24 / hr (Avg Bid)
    €24 / hr Keskimäär. tarjous
    12 tarjoukset
    compile a coin for me 6 päivää left
    VARMENNETTU

    Hi I want you to compile new coin for me with Explorer Windows and linux wallet Minning pool

    €620 (Avg Bid)
    €620 Keskimäär. tarjous
    10 tarjoukset

    Hi there, I need someone who is able to create a ethereum node and implement a smart contract which allows the deployment of certifications. Simply Entity-A releases a certificate to entity B with few details, name, expiration, this is push on the blockchain. Please contact me for more information. Fed

    €167 (Avg Bid)
    €167 Keskimäär. tarjous
    15 tarjoukset
    Need to Fork Litecoin 6 päivää left
    VARMENNETTU

    Hi All, I want to Fork a coin based on LTC. Experience in Blockchain and cryptocurrency will only place the bid. Details will be shared over personal message. Thanks

    €722 (Avg Bid)
    €722 Keskimäär. tarjous
    17 tarjoukset

    I'm looking for a developer who can create an Erc-20 token with intellectual property written in the smart contract. So the tokens legally represent shares of the intellectual property. In our case, the intellectual property will be songs. Also written in the contract, we would like the addresses and wallet value to also be part of the token. Wallet addresses on other cryptos such as music...

    €387 (Avg Bid)
    €387 Keskimäär. tarjous
    20 tarjoukset
    Create new version of at code 5 päivää left
    VARMENNETTU

    I want a new version of a qr code created to store more information. I want either more modules or more colours. Maybe black, white, grey, blue, green and red as an option or other option is for more modules so instead of 144x144 it can be like 555x555. I will also need to know how much data can be store in the code and how many kB the wr image itself will be

    €59 (Avg Bid)
    €59 Keskimäär. tarjous
    5 tarjoukset

    This is part one of a multi-part evolving project. This is webapp solution will allow users to extract the blockchain data of the users' wallets. Data will be saved to a SQL server. The webapp will also periodically capture incremental data of the wallets. The webapp will then allow the user to view their wallet ledgers and token asset summary. To keep this project small and on budget, we w...

    €160 (Avg Bid)
    €160 Keskimäär. tarjous
    11 tarjoukset

    This project is only for senior experts who have proven experiences in mobile wallet of several digital assets. Need to provide several digital assets like BTC, ETH, Monero, .. Send, Receive, Exchange between assets functions to be implemented Need import/export private key Backup wallet function need high security Several Language Native or Hybrid both possible

    €3157 (Avg Bid)
    €3157 Keskimäär. tarjous
    35 tarjoukset

    Developing a Blockchain Technology for Healthcare data record

    €1639 (Avg Bid)
    €1639 Keskimäär. tarjous
    29 tarjoukset

    I need a new website. I need you to design and build it.

    €323 (Avg Bid)
    €323 Keskimäär. tarjous
    10 tarjoukset
    New crypto betting game 4 päivää left
    VARMENNETTU

    I have a new cryptocurrency and have a new idea for a betting game to be used with my currency. I need it to be automated and fair and can be verified. Smart contract or similar to be used for random flip feature so code can be open source and verified

    €383 (Avg Bid)
    €383 Keskimäär. tarjous
    18 tarjoukset
    Web wallet for new cryptocurrency 4 päivää left
    VARMENNETTU

    Simple secure web wallet required for new dash fork

    €298 (Avg Bid)
    €298 Keskimäär. tarjous
    14 tarjoukset
    !! Blockchain Job - 3-9 Months !! 4 päivää left
    VARMENNETTU

    !! READ the REQUIREMENTS before you knock !! Key Factors: - You are expected to have good knowledge on areas such as; blockchain/crypto-threats/solidity/Hyperledger/Smart-contract/Hash-Algorithms/51% attacks. - You will probably need to spend 90-130 hours per month to do the required tasks. ( For instance; an experienced person, in the related area, may do the required job in 90 hours, whe...

    €254 (Avg Bid)
    €254 Keskimäär. tarjous
    9 tarjoukset
    IPFS Installation 4 päivää left
    VARMENNETTU

    Please refer to [kirjaudu nähdäksesi URL:n] and i Will send you the requirement.

    €109 (Avg Bid)
    €109 Keskimäär. tarjous
    16 tarjoukset
    Looking for blockchain API 4 päivää left
    VARMENNETTU

    Looking for an expert for the API of these coins (No 3rd Party) XRP BCH EOS STELLER TETHER TRON BTC SV

    €156 (Avg Bid)
    €156 Keskimäär. tarjous
    8 tarjoukset
    Ico script 4 päivää left
    VARMENNETTU

    I need a ready-made complete ico script, if you have let me know asap.

    €88 (Avg Bid)
    €88 Keskimäär. tarjous
    11 tarjoukset
    Mobile App 4 päivää left

    Social media, to publish documents and text

    €464 (Avg Bid)
    €464 Keskimäär. tarjous
    18 tarjoukset
    BLOCKCYPHER INTEGRATIONS 4 päivää left
    VARMENNETTU

    I NEED SOMEONE TO INTEGRATE BLOKCYPHER API FOR COINS PAYMENT ON OUR SITE

    €161 (Avg Bid)
    €161 Keskimäär. tarjous
    15 tarjoukset
    ROSCA blockchain application 4 päivää left
    VARMENNETTU

    I need you to develop ROSCA blockchain application. Please google and search for ROSCA if you do not know about it.

    €278 (Avg Bid)
    €278 Keskimäär. tarjous
    4 tarjoukset

    Dear Sir/Madame Dero is the first crypto project to combine a Proof of Work blockchain with a DAG block structure and wholly anonymous transactions. The fully distributed ledger processes transactions with a twelve-second average block time and is secure against majority hashrate attacks. Dero will be the first CryptoNote blockchain to have smart contracts on its native chain without any extra la...

    €5042 (Avg Bid)
    €5042 Keskimäär. tarjous
    14 tarjoukset

    Hi! I am looking for a crypto expert to help me understand some of the basic concepts of the blockchain and programming. Thanks!

    €815 (Avg Bid)
    €815 Keskimäär. tarjous
    26 tarjoukset
    Crypto Mining 3 päivää left

    Hello, I am looking for someone who has a big knowledge in crypto currencies and mining.

    €27 / hr (Avg Bid)
    €27 / hr Keskimäär. tarjous
    24 tarjoukset

    Hello! Please be sure you read this prior to contacting or placing a bid so you know exactly what I am looking for. Thank you! The details for this project are as follows: I need a lightweight multi currency wallet. This wallet will NOT have to download the entire chain for all the currencies in this wallet. This wallet will run on Windows 7 and up. The user should be able to switch between t...

    €2001 (Avg Bid)
    €2001 Keskimäär. tarjous
    19 tarjoukset

    Hello, I want someone to build me a personal Cryptoscreener similar to TradingView, the difference is it will import the coins data from another website and not like TradingView, cause it doesnt have so many crypto currencies. I dont care if its web based or a software. Contact me only if you think you can do it! Thanks,

    €985 (Avg Bid)
    €985 Keskimäär. tarjous
    14 tarjoukset
    €1276 Keskimäär. tarjous
    46 tarjoukset

    Need to develop a Crypto Currency exchange Similar to Binance. Please only beed who worked on Blockchain and Crypto Currency Exchange development.

    €16194 (Avg Bid)
    €16194 Keskimäär. tarjous
    32 tarjoukset

    Looking for Multi Crypto Currency Exchange like Binance.

    €596 (Avg Bid)
    €596 Keskimäär. tarjous
    12 tarjoukset

    Create an Blockscout GraphQL setup, make calls to get information to render the ERC721's via Swift through the specified "Trust-wallet-ios". The goal is to render all the ERC20's, as well as any ERC721's in the given mobile wallet on the given RPC address. This job is for not only for a Swift & GraphQL experienced & someone with blockchain knowledge on how to par...

    €136 (Avg Bid)
    €136 Keskimäär. tarjous
    10 tarjoukset

    Hi MxiCoders Private Limited, I noticed your profile and want to extend my project offer out to you, we can discuss the details over chat.

    €416 (Avg Bid)
    €416 Keskimäär. tarjous
    13 tarjoukset

    1. Incorporate within an existing site btc and eth payment modules. 2. Encompasses smart contracts setup and also hashing data encryption. 3. Provide all possible and required documentation to managing all infrastructure setup and developed.

    €437 (Avg Bid)
    €437 Keskimäär. tarjous
    26 tarjoukset

    a hyperledger sawtooth poc need to setup and need training online to internal team members (2)

    €34 / hr (Avg Bid)
    €34 / hr Keskimäär. tarjous
    9 tarjoukset
    Create security erc20 token 1 päivä left
    VARMENNETTU

    I need an erc20 security token on blockchain.

    €110 (Avg Bid)
    €110 Keskimäär. tarjous
    7 tarjoukset

    We are looking to hire someone who is familiar with PIVX forking and masternode. we have Blockchain forked from PIVX and need to add some features/functionalities in masternodes, so experienced developer would be required and see long term relationship. Need to start immediately.

    €2271 (Avg Bid)
    €2271 Keskimäär. tarjous
    26 tarjoukset

    We need to change in our existing source code (PIVX based) the masternode collateral system. Goal: - The masternode collateral depends on the high of masternodes (the scheme we have done). - Existing masternode will run continuously. The existing nodes in the network will be not affected (coll. is locked all time), only new nodes need the higher collateral (or less when the nodes are decreasi...

    €189 (Avg Bid)
    €189 Keskimäär. tarjous
    14 tarjoukset
    build a virtual betting website 1 päivä left
    VARMENNETTU

    we are looking for a expert to build us a virtual betting website, to bid kindly note that you have to list the required things needed for a good virtual betting website for us to consider your bid, both for admin and front-end pages.

    €1333 (Avg Bid)
    €1333 Keskimäär. tarjous
    65 tarjoukset

    Below are our requirements on the blockchain Games platform development: We will release a pure blockchain-based Games platform with lots of blockchain games. The kinds of games will similar to those games on below websites: [kirjaudu nähdäksesi URL:n], [kirjaudu nähdäksesi URL:n], https://fck.com. A turnkey solution of development should be provided for us, it should contain ...

    €7811 (Avg Bid)
    €7811 Keskimäär. tarjous
    50 tarjoukset

    SOFTWARE 1. Programming language : python / Java 2. Blockchain : etherium solidity 3. Dummy database : SQL 4. Interface : PhP framework 5. API : postman 6. Machine learning : random forest MODULE 1. User trust model 2. Device trust model 3. Information trust model 4. Malware detection 5. Evidence collection IMPORTANT NOTES 1. All trust model information will not be stored in the database. It wi...

    €565 (Avg Bid)
    €565 Keskimäär. tarjous
    18 tarjoukset

    We are looking to hire someone who is familiar with PIVX forking and masternode. we have Blockchain forked from PIVX and need to add some features/functionalities in masternodes, so experienced developer would be required and see long term relationship. Need to start immediately.

    €1243 (Avg Bid)
    €1243 Keskimäär. tarjous
    19 tarjoukset

    Hi We are looking to hire someone who is familiar with PIVX forking and masternode. We have forked blockchain from PIVX and we want to modify / fix some stuffs at the moment. Plus we are working on the re-design / re-engineering of the QT wallet. So we want to move based on milestone. Need to start immediately.

    €1139 (Avg Bid)
    €1139 Keskimäär. tarjous
    14 tarjoukset

    Hello! This project is for a Lightweight Windows based BTCP desktop wallet. A wallet that does not require downloading the entire blockchain. Now, I am a little unfamiliar how this works but I believe there has to be some sort of server component or remote nodes the wallets connect to to sync the blockchain for them. This project includes the desgn and building of the wallet itself in addition to ...

    €861 (Avg Bid)
    €861 Keskimäär. tarjous
    15 tarjoukset

    We are looking for developing a small application using [kirjaudu nähdäksesi URL:n] the basic req_doc.

    €3009 (Avg Bid)
    €3009 Keskimäär. tarjous
    32 tarjoukset

    Hi everyone! We are looking to hire someone who is familiar with blockchain technology to work on our blockchain forked from PIVX. We need to update some features/functionalities and redesign also qt wallet. we should move based on milestone. Need to start immediately

    €1284 (Avg Bid)
    €1284 Keskimäär. tarjous
    17 tarjoukset

    Hi everyone! We are looking to hire someone who is familiar with blockchain technology to work on our blockchain forked from PIVX. We need to update some features/functionalities and redesign also qt wallet. we should move based on milestone. Need to start immediately

    €765 (Avg Bid)
    €765 Keskimäär. tarjous
    23 tarjoukset

    Suosituimmat Blockchain -yhteisöartikkelit