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.

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    35 jobs found, pricing in USD

    Purpose is to make a pool for mining cryptocurrencies on different algorithms. clients with personal computers or asic miner min on the pool and get payed according to the power of their hardware hash rates. This pool has to have a windows base software that makes clients without special computer knowledge able to connect to pool and start mining. Pool has to support different algorithm for gpu /c...

    $2476 (Avg Bid)
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    18 bids

    Private Chat Messenger - With Blockchain Integration. Should be work like web whatsaap, android and apple store applications and submissions. Designing, Coding, Uploading of apps, Maintainence, Server Integration also required. Scope of Work:- Private Chat Messenger ( With Blockchain Intigration) • Application Scope Blockchain Private Chat Messenger • Instant Messenger • Video...

    $1453 (Avg Bid)
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    14 bids

    My Previous devolper is faild to proivde what I asked so I need to make sure I will get what I am looking for and not just cookiecut work. You need to create a copy of NEO coin but with a new own Blockchain and own Explorer with our details and supply also some of changes which we will ask you to do. You need to clear and provide all points including: SUPERBLOCK Privatekey Core Specification Wal...

    $551 (Avg Bid)
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    Our Company is planning to develop a mobile app which have multiple features inside mainly consists of Fintech (Blockchain, Cryptography, financial brokerage) The first stage will be cryprocurrencies wallet (BTC, ETH, LTC, USDT) and a new token created by the Company. All tokens will be able to transfer and interchangeable. The second stage will be development of Crypto trading contest and a...

    $40728 (Avg Bid)
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    42 bids

    Nuestra Empresa [login to view URL] necesita personas con conocimientos básicos y avanzados en bitcoin, ethereum, desarrollo en solidity y manejo de intercambios criptomonedas, ICO, IPO, Minería POW Y POS, FINTECH 2.0 y todo lo relacionado con economía digital. Se adjunta libro guía de conocimientos básicos en trading, blockchain y criptoeconomia. Nota: se ir&a...

    $28 / hr (Avg Bid)
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    5 bids

    We are starting a cryptocurrency exchange platform. Here we are looking for team members who are well connected and can promote our platform in the following languages/countries. English Chinese Korean Hindi (india) Russian Spanish French German We are looking for people that can become more than just employees from upwork but people that can join our company and become shareholders.

    $50000 (Avg Bid)
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    9 bids
    Tech Support 5 days left

    Cryptocurrency exchange Chaincreator ([login to view URL]) is looking for a technical support representative experienced with cryptocurrencies and trading. Responsibilities • Responsible for maintaining a high level of professionalism, while working to establish a positive rapport and ongoing engagement with clients. • Investigate and resolve technical issues with customers and partners...

    $14 / hr (Avg Bid)
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    7 bids

    I need someone to fixed a bug on my erc20 token i just created

    $33 (Avg Bid)
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    8 bids
    Design a website brochure. 4 days left
    VERIFIED

    I need a cryptocurrency website brochure designed.

    $59 (Avg Bid)
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    34 bids

    We're in need of a [login to view URL] expert to create a new provider for syscoin. If you think you're senior, please apply. [login to view URL]

    $1348 (Avg Bid)
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    17 bids

    Hey, We have build our own blockchain trading platform and needed to expan team of developer. Someone having good knowledge on writing smart contracts and UI knowledge would be good fit.

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    39 bids

    I need some changes to an existing website. I already have a design, I just need you to build a website for my small business.

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    7 bids

    Do you have more than a year of bitcoin core development experience? Are you experienced with c++ and qt, and compiling chains for multiple platforms? Then this is the job for you. I have multiple projects for you to support me for long time. Please contact me. i want to start asap with the right person. Thanks and tell me what your favorite programming language is.

    $291 (Avg Bid)
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    A gaming App based on ethereum (if other blockchain prefered please tell me why) 2D gaming app based on ethereum with in App purchases, a level-system and it needs a wallet integration Please have experience in smart contracts, ios and android development. Deadline: End of Q1 2020.

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    34 bids

    Looking for a highly experienced react developer with ethereum and smart contract experience. We recently deployed the new smart contract to the ethereum mainnet and need someone who can connect it with our frontend. The things you need to do: - Call smart contract functions to set and get data. - Add Event listener to listen events of the contract. You will work with our blockchain developer.

    $31 / hr (Avg Bid)
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    38 bids
    Bitcoin ATM (3) 3 days left
    VERIFIED

    Research on Bitcoin ATMs. Looking for someone highly knowledge able the technical side of Bitcoin ATMs, blockchain analytics, and cryptocurrency risk. Should be able to research (using blockchain public sources, etc.) and answer the following questions: 1) Bitcoin ATM operator wallets: Does an operator use the one wallet address per Bitcoin ATM? The same wallet address across multiple ATMs? Do o...

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    We are looking to create an auction DAPP on Ethereum Blockchain. Applicants must have experience building Dapps- apply with your portfolio.

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    BlockChain expert 3 days left
    VERIFIED

    Need a experienced writer in the area of Block-chain. Please bid if you have expertise in Block-chain area.

    $370 (Avg Bid)
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    17 bids
    Blockchain Network Audit 2 days left
    VERIFIED

    Looking for a Blockchain Expert Developer with GO & C++ Background SUMMARY Crypto Poker Exchange (CPE), an online poker gaming platform, is looking for a Blockchain Developer who has experience in building and auditing blockchain-based software. Specifically, CPE is looking to perform an audit of its current source code, which consists of several blockchain nodes designed to enable transact...

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    Hi, I need someone to create a well consctructed article to explain a crypto / blockchain project.

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    31 bids

    We need to fork the ethereum blockchain and release as our own blockchain with an additional feature to the blockchain. Forking the ethereum blockchain with the change of creating a wallet in blockchain to collect fee from every transaction and at beginning of month distribute those fees to coins holder based on the percentage of coins they hold. For example i hold 10% of coins in my address the...

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    We are early-stage logistics startup based in Bangkok, Thailand which has been operating for more than a year in Southeast Asia. Our company are in fund-raising stage ready to scale up and are looking for skillful and talented people to join our team. If you are interested, feel free to contact us. High Payoffs, Big Equity and Big investors. Qualifications: 1. Specializing in back-end, software e...

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    Need A Cryptocurrency Website FrontEnd Developer.....I want to redesign my Cryptocurrency exchange website!

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    22 bids

    FREELANCERS FROM VIETNAM or PHILIPPINES ONLY Looking to set up a chat support team for technical services. Only experienced BPO professionals needs apply, looking for 5-10 full time staff. I will most likely be contacting you on this job. Details of the project will only be made available over the video call. I have 20 years of BPO experience, testing freelancer for my sister's busine...

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    Write a technical plan 1 day left
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    This technical plan is for the a solar blockchain development. The purpose is of this plan is to present to software development team to develop. The blockchain will gather energy consumption and generation information from solar energy systems installed on user buildings. The data collected will be used to calculate how much tokens are to be awarded to energy producers. The preferred blockchai...

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    stellar Developer 1 day left
    VERIFIED

    i am looking for someone who have worked on stellar ( crypto ) . more details will be shared later . Thanks

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    We are starting new crypto platform and I am currently collecting team. It is open source community project but I need experienced blockchain developer for that team. I will pay initial payment to join in as lead developer and to create coin together with others. When coin and chain is created you should continue and represent platform as lead developer. Platform rewards are paid every month. New...

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    Build Crypto Wallet 1 day left
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    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, IO, Android and Other Operating systems. The user should be able to switch between the coins and utilize the features of each wallet. 1. Bitcoin Private (BTCP) A. This wallet MUST be able to utilize both Transparent (b) and Shi...

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    I need a bitcoin hardfork developed and set up as a mineable coin. Everything else will be exactly the same as the original bitcoin but larger blocks and it will be forked at a block just before segwit. Need it all set up and tested with Linux, windows and Mac wallets. It can be a Zcash hardfork as well so it need to be Bitcoin or Zcash, I mean we will decide it with the discussion. You are respon...

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    I am looking for a PHP/MySQL expert that has full knowledge of coding using PHP with the EOS Blockchain. I want a simple PHP script created that will: 1. create a EOS Transaction (with memo) by simply sending $0.001 EOS from my ESO Wallet #1 to my EOS Wallet #2 2. get the completed ESO transaction ID and insert in MySQL database Here is how I see it working: - you create a php page with si...

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    Need Modifications done to the EOS/BTS Graphene blockchain. Need two smart contracts written and compiled. Must be experienced on this Blockchain. Require by default to make every transaction into stealth mode. Require an auto-boot up system script in Vitual tmux terminal mode or other, if a server goes down with Blockchain start, cli-wallet started, API started. faucet started in 4 different wind...

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    Needs to hire 10 Freelancers You will be working with SLP tokens. If you’re not familiar with SLP yet, it’s okay. If you’re a capable developer you can learn it as we go. Javascript/typescript backend Either one is a must. It would be good if you have experience with charts/graphs. You’ll be working on a variety of projects as we go on, starting with an SLP “Mint&rdqu...

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    project is to implent a keecak miner on mainnet that will work with a keecak Asic miner that is selling on the market

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    Crear Criptonedas Digital y venderlas

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    5 bids

    Nuestra Empresa [login to view URL] necesita personas con conocimientos básicos y avanzados en bitcoin, ethereum, desarrollo en solidity y manejo de intercambios criptomonedas, ICO, IPO, Minería POW Y POS, FINTECH 2.0 y todo lo relacionado con economía digital. Se adjunta libro guía de conocimientos básicos en trading, blockchain y criptoeconomia. Nota: se ir&a...

    $2283 (Avg Bid)
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    12 bids

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