Blockchain Jobs

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. 雇佣Blockchain Developers

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    46 搜到的工作,价格货币为 USD
    Smart contract - block Chain 6 天 left
    已验证

    Block chain expert with expertise in solidity, as part of the elimination process, a simple smart contract has to be written, less than 20 lines, The project is for an agricultural market place, the developer should be able to write a few lines with a smart contract for an agricultural market place, where people can buy and sell products e.g. Coffee, Fish, Irish Potatoes, Beef. Failure to provide ...

    $2258 (Avg Bid)
    $2258 平均报价
    19 个竞标

    ERC20 token listing with low budget.

    $871 (Avg Bid)
    $871 平均报价
    13 个竞标

    we are looking for smart contract developers having good knowledge of solidity language to compile and deploy contracts and use web3 to get it done on front end

    $50 (Avg Bid)
    $50 平均报价
    4 个竞标
    bond issue using blockchain 6 天 left
    已验证

    A token will be offered for each $1 of bonds issued by the project. There will be [$20-30] million of token initially issued for the first transaction, out of a total of [$1 billion] for the program. The bond thus issued will be registered in Singapore and listed on the SGX exchange. The SEED token is an ERC20 token distributed on the Ethereum blockchain through a mechanism of an ST20 Smart Contra...

    $23 / hr (Avg Bid)
    $23 / hr 平均报价
    16 个竞标

    Need investors for new crypto project Pre sale aventage price whit 60% bonus

    $388 (Avg Bid)
    $388 平均报价
    4 个竞标

    Looking for someone with experience in Cryptocurrency to upgrade a existing older coded wallet to most current software. GitHub link for the coins current wallet based on old 2014 code [登录来查看链接] If you feel you have the ability to update the current code and also can implement merged mining to the code and also help secure the blockchain please review the source and contact. We would be intereste...

    $690 (Avg Bid)
    $690 平均报价
    21 个竞标

    VGORisky’s goal/aim is to provide a secure and fun gambling service based around the use of crypto collectables, more specific VGO collectables. We aim to provide three main game modes, Jackpot, Coinflip and Case opening. The site will use 4 main API’s, these 4 API’s will be for users access and for the sites functions, the 4 API’s are: • VGO Vcase • OPSkins Logi...

    $1745 (Avg Bid)
    $1745 平均报价
    11 个竞标

    I need Bitcoin Node to be installed with API key. The whole server must be install securely and should be penetrate able. Server must run a full node with API access. API must be use able to create/generate new wallet addresses, Node must be able to send and receive payments, Node must be automatically transferring funds from node wallet to a cold / hardware wallet. Server must be protected agains...

    $388 (Avg Bid)
    $388 平均报价
    8 个竞标

    We are looking for someone with a lot of experience with blockchain and wallets. We are looking for someone that can update the entire wallets UI and add additional features such as a graph, seed key. Ideally looking for around the 500-600$

    $588 (Avg Bid)
    $588 平均报价
    17 个竞标
    Install Exchange Dex 5 天 left
    已验证

    Exchange Decentralized for btc, ltc and Eth and ERC20 standar complete web - Backend admin - Users account Developer must deliver lenguage programming language, all features and functions, and description complete of installation and technical sheet of the whole installation

    $2028 (Avg Bid)
    $2028 平均报价
    25 个竞标

    I am looking for Co founders blockchain programmer and ICO specialist to start new project

    $19 (Avg Bid)
    $19 平均报价
    5 个竞标

    I would be willing to make the people stock holders and partners in the company. They would have continuous income for life. The tech involved is very guarded contracts and interviews. has real world application and will be adopted quite fast. Relocation may be a must. is truly a game changer.

    $948818890 (Avg Bid)
    $948818890 平均报价
    23 个竞标

    We need an ICO Wallet that works on Ethereum Smart-Contract

    $358 (Avg Bid)
    $358 平均报价
    21 个竞标

    Hello! I need a script crypto exchange, just looking for a ready solution. Before buying, I need to watch a demo! I do not need to develop from scratch, such a proposal please do not write to me!

    $1273 (Avg Bid)
    $1273 平均报价
    35 个竞标
    Bitcoin jackpot site 4 天 left
    已验证

    Looking for partner (paid small amount while working and then site revanue) I want a bitcoin jackpot site (script) Players register and deposit btc. They then ret credit on the site to use in the jackpot. Jackpot is timed so Player can join in and try win the pot. Site profit is 10% of each played game. Dont reply of you havent read it all. Dont reply og you dont Know what bustabit crash gam...

    $91 (Avg Bid)
    $91 平均报价
    4 个竞标

    Here Its Example How Should Look And Should Be The Exchange The UI/UX Check Website Before Bid if u can make like this okay : [登录来查看链接]

    $4617 (Avg Bid)
    $4617 平均报价
    40 个竞标

    I need to generate new genesis block insted of current one for POW/POS cryptocurrency, with new vAlertPubKey and scriptPubKey all instruction and steps should be include. award will be according to best price

    $180 (Avg Bid)
    $180 平均报价
    8 个竞标

    We are looking for Ethereum Smart Contract developers who has god grip on Solidity language to write contracts and trigger events

    $62 (Avg Bid)
    $62 平均报价
    4 个竞标

    Build a Mining Pool Website Like [登录来查看链接] [登录来查看链接]

    $151 (Avg Bid)
    $151 平均报价
    8 个竞标

    Hello! I need a script crypto exchange, just looking for a ready solution. Before buying, I need to watch a demo! I do not need to develop from scratch, such a proposal please do not write to me!

    $1404 (Avg Bid)
    $1404 平均报价
    43 个竞标

    I am looking for ocaml blockchain expert

    $681 (Avg Bid)
    $681 平均报价
    24 个竞标

    Section 1: Final points to be verify and fix if any issues 1) SMTP to API for email via [登录来查看链接] api 2) Email and SMS notification alert for message from trade related 3) Validations in Register page 4) Multiple user session lock 5) Session Hijacking 6) Update mobile no otp verification 7)Sign In link expire on click for sign in 8) Ledger proper in User and Admin Dashboard Section 2: 1) Logic: ...

    $39 (Avg Bid)
    $39 平均报价
    1 个竞标

    Hello. I am looking for experienced oclam developer. Have to know blockchain, prototcols, c++.

    $607 (Avg Bid)
    $607 平均报价
    23 个竞标

    I'm trying to modify pool codes in a mining pool using SHA 256 and redeem the hashes in another coins . Basically my device only process SHA 256 but wondering if we could program the pool to convert the algorithm ? please contact me if you have experience in this filed. my method of payment is by creating milestones and release it once the task was completed . had lots of good reviews so far...

    $461 (Avg Bid)
    $461 平均报价
    15 个竞标

    A blockchain engagement platform designed to be a nexus for blockchain education, networking, enterprise collaboration and talent discovery. It is a six month project with a fixed pay every month.

    $2813 (Avg Bid)
    $2813 平均报价
    14 个竞标

    Building supply chain management using blockchain for super market

    $27 / hr (Avg Bid)
    $27 / hr 平均报价
    19 个竞标

    ERC20 token listing with 1 - 2 eth budget.

    $536 (Avg Bid)
    $536 平均报价
    25 个竞标

    hello! we are looking for people who can get us a decentralized crypto exchange you can looking at this website [登录来查看链接]

    $2330 (Avg Bid)
    $2330 平均报价
    13 个竞标

    Need a Full stack developer who have some basic knowledge about cryptocurrency, blockchain, and are familiar with the following stack: Node.js, React.js, Redux , AWS, DynamoDB, the ideal candidate should have worked with several successful projects, is an ***excellent front-end developer*** The brokerage needs to have a payment mechanism for depositing the fund, as well as a dashboard for viewing...

    $17 / hr (Avg Bid)
    $17 / hr 平均报价
    45 个竞标

    We have an ERC20 token and we want a legal opinion to ensure it's a utility cryptocurrency. Please don't bid if you are inexperienced with this task.

    $571 (Avg Bid)
    $571 平均报价
    12 个竞标
    cryptocurrency 2 天 left
    已验证

    i want to create a cryptocurrency for payment.

    $762 (Avg Bid)
    $762 平均报价
    24 个竞标

    I'm fonder of ALFASSA ( [登录来查看链接] ) and I need a BlockChain's programmers

    $8564 (Avg Bid)
    $8564 平均报价
    24 个竞标

    I am looking for a blockchain developer experienced in setting up Electrum wallets. Project's description and features is attached.

    $331 (Avg Bid)
    $331 平均报价
    11 个竞标

    Hi. I am going to develop new blockchain. I will share details for right freelancer.

    $1140 (Avg Bid)
    $1140 平均报价
    34 个竞标
    Needed ERC20 token Service 2 天 left
    已验证

    We need ERC20 token Service Developer. We are looking for a highly skilled developer who can provide us ERC20 Services. We are looking for • Get Balance • Token Send/Receive • Token Address Generation • Transaction History Please Note: • You will need to handover the full development source code to us. • Should be developed with PHP CodeIgniter. • We need the se...

    $543 (Avg Bid)
    $543 平均报价
    18 个竞标

    1. Create a masternode coin like pivx 2. Create block explorer 3. Create QT wallets ( Win - 32-64, Linux, Mac ) 4. Publishing source code in github [登录来查看链接] masternode guide 6. guide to install the seednode Please note : I require only professional developers , I will first check if the coin chain is smooth or not I mean no bugs in the coin or proof of stake

    $994 (Avg Bid)
    $994 平均报价
    11 个竞标

    We need to develop and execute a training program in Blockchain

    $525 (Avg Bid)
    $525 平均报价
    13 个竞标
    Cleveland, Ohio EOS Uber App -- 2 22 小时 left
    已验证

    Looking to get an app built on the EOS blockchain that allows riders to receive tokens for their driving service similar to UBER in the Cleveland area. Must have understanding of GPS.

    $4374 (Avg Bid)
    $4374 平均报价
    27 个竞标
    Cleveland, Ohio EOS Uber App 22 小时 left
    已验证

    Looking to get an app built on the EOS blockchain that allows riders to receive tokens for their driving service similar to UBER in the Cleveland area. Must have understanding of GPS.

    $2370 (Avg Bid)
    $2370 平均报价
    15 个竞标
    Help create my Blockchain Fork... 18 小时 left
    已验证

    I need a Blockchain Developer capable of producing a fork with basic Blockchain Adjustments like Block Time, Block Reward, Block Halving, Etc. We would like a wallet implemented and designed as well along with several additional aspects to the development but nothing to extensive. We would require someone with at least 2-3 years experience with Blockchain Developer. ***NOT SMART CONTRACTS! SOL...

    $36 / hr (Avg Bid)
    $36 / hr 平均报价
    42 个竞标

    I need complete guide to create qt wallets, genesis block, block explorer, block chain from scratch. Finished product should include guide for bash file for easy setup of a masternode VPS on Ubuntu 18.04, and QT GUI wallets for Linux, Windows, Mac. Finished blockchain should not have Proof-of-work mining capabilities. All GUI wallets should be capable of hosting masternodes, have an explorer optio...

    $795 (Avg Bid)
    $795 平均报价
    5 个竞标

    Hi! I want my iOS app to be developed in React Native. It's an app like Uber. I have the Android & iOS version already made up using Objective C. Design & all the things will be same as the existing app in React Native except map. The map should be created for React Native. It’s a simple map like admin can change the colors, can create own icons, colors on map etc in a word, ad...

    $1985 (Avg Bid)
    $1985 平均报价
    41 个竞标

    I want to develop a proprietary service for my customers. Essentially, it's going to be a stripped-down version of blockchain. I need someone who is knows blockchain inside out - to the point where theyre not helplessly enamoured by it. If you know what you're doing, this is a walk in the park. If you're wrapped up in your crypto bubble, stay there, I have no use for you

    $1559 (Avg Bid)
    $1559 平均报价
    38 个竞标
    Compile new POS/POW coin -- 2 6 小时 left
    已验证

    I want to start a new coin POS/POW. Please bid if you have already developed coins. Looking forward for serious dev..

    $968 (Avg Bid)
    $968 平均报价
    9 个竞标

    I need some one to install Rubykube/peatio cryprocurrency exchange in Kubernetes or linux, and you should modify backend and frontend ui please bid if you worked kubernetes docker Ruby on rails and blockchain technologies, want to know more details plz chat with me,

    $30 / hr (Avg Bid)
    $30 / hr 平均报价
    16 个竞标
    Create a new Crypto Currency 14 天 left
    已验证

    Create a new Crypto Currency by Improving open source existing codes and ensure its reliability to connect to external environments, and implement sepcific specs and deliverables and high level security.

    $3393 - $5654
    加精 加封 保密协议
    $3393 - $5654
    65 个竞标

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