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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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    31 trabajados encontrados, precios en EUR

    I need a SaaS platform to be developed from scratch. Front end back end as well as design.

    €401 (Avg Bid)
    €401 Oferta Promedio
    6 ofertas
    Blockchain 6 días left

    WHY US Blockdynamics is an international startup that implements Blockchain solutions for Enterprise. We believe that smart contracts and Blockchain technology have the potential to impact a vast portion of the 21st century's economy. We aim to become one of the early providers of tools in the enterprise Blockchain ecosystem. We support protocols such as Ethereum, Hyperledger, Corda, and EOS,...

    €2005 (Avg Bid)
    €2005 Oferta Promedio
    13 ofertas

    1. Front end 2. Back end for clients with sub-domain 3. Backend for SaaS management 4. Blockchain usage in architecture wherever possible.

    €132 (Avg Bid)
    €132 Oferta Promedio
    4 ofertas
    need someone to fork stellar.org 5 días left
    VERIFICADO

    This is for a blockchain startup. We prefer someone who already has the full package...website..wallet..currency... etc... We can discuss further requirements after interview

    €552 (Avg Bid)
    €552 Oferta Promedio
    6 ofertas

    Need someone that is familiar with blockchain/cryptocurrency website here: [iniciar sesión para ver URL] roulette (remove the space to view) 1) Create an account and go to the "Roulette" game as that is what we need duplicated and managed Incentives: A) % of earnings long-term B) And much more bonuses to come There is an image attached of the Roulette game you will see

    €30 / hr (Avg Bid)
    €30 / hr Oferta Promedio
    37 ofertas

    I am needing someone to duplicate this site and be able to make changes as we want to customize it. Playing the Roulette game or something similar. website: (remove the space) https://bitsane. tech

    €20 / hr (Avg Bid)
    €20 / hr Oferta Promedio
    76 ofertas

    Design, Javascript(React,Vue,Node,Angular), Python, Laravel, Blockchain, Cryptocurrency.

    €450 (Avg Bid)
    €450 Oferta Promedio
    52 ofertas
    Installing solidity 5 días left
    VERIFICADO

    Help me install solidity 0.4.17

    €14 (Avg Bid)
    €14 Oferta Promedio
    2 ofertas
    Install and Configure bitexchange 4 días left
    VERIFICADO

    Hi, If you are crypto expert, then please bid. We have bitexchange crypto exchange. We want expert freelancer, who can install and configure exchange on DigitalOcean hosting.

    €11 / hr (Avg Bid)
    €11 / hr Oferta Promedio
    5 ofertas

    We want to ramp up a project similar to [iniciar sesión para ver URL] check out the whitepaper, maybe with some other easy understanding games and also with some Coin (Ante at [iniciar sesión para ver URL]) but it should be also possible to use a coin which exist. Because of the high transaction (games) we need a blockchain which can handle so many transactions maybe ripple? We have ...

    €20 / hr (Avg Bid)
    €20 / hr Oferta Promedio
    19 ofertas

    I'm looking for someone who have enough experience a EOS Smart Contract. This project has to finish within 3 days. Project details will discuss with chat. Required need Skill: EOS Blockchain, smart contract, C++

    €537 (Avg Bid)
    €537 Oferta Promedio
    14 ofertas

    I need a experience memory coder(s) to develope me a software program for Online Gaming in either C/C++. It will be used as a assistance for A.imin.g purposes. Experienced coders need only bid. Contact me for a more in-depth discussion.

    €964 (Avg Bid)
    €964 Oferta Promedio
    17 ofertas

    Main goals: inventing the simplest technical solutions for business problems writing a technical task and setting tasks for developers (solidity, javascript, html, css) code review, control of developers and ensuring the implementation of development plans in a timely manner. The project suggests: participation in the writing of documentation; interacting with teams that develop other products; d...

    €34 / hr (Avg Bid)
    €34 / hr Oferta Promedio
    20 ofertas

    Need to audit our stable coin smart contract. Interested people send me your previous work

    €188 (Avg Bid)
    €188 Oferta Promedio
    8 ofertas

    creating a peer to peer trading website like [iniciar sesión para ver URL] with more features

    €1097 (Avg Bid)
    €1097 Oferta Promedio
    40 ofertas

    I need a faucet with Steem coin integrated. I need exactly a website like this but with steem instead of doge. [iniciar sesión para ver URL]

    €149 (Avg Bid)
    €149 Oferta Promedio
    12 ofertas

    I need a profitable forex trading signal

    €5969 (Avg Bid)
    €5969 Oferta Promedio
    26 ofertas

    I need a profitable Forex Trading Signal and How does it works

    €3693 (Avg Bid)
    €3693 Oferta Promedio
    15 ofertas
    ASIC FPGA Firmware development 1 día left
    VERIFICADO

    We are looking for developers/coders specialized in cryptos and blockchain for a project of firmware development. We would like to get a firmware to overclock this mining hardware i.e. graphic cards (GPU) RX580 8Go. Which are the maximum hashrates performances you can get?

    €1810 (Avg Bid)
    €1810 Oferta Promedio
    3 ofertas

    Requirements: 1) Must have solid experience in web and software development especially C++(I DO NOT WANT PHP WORK.) 2) Must have a solid background in Security and Cyber Security. 3) Must know how to create full nodes for the coins and tokens listed and offer liquidity solutions. 4) This is only for experienced firms and long term work will be offered! Pay will be for this project and 4 months...

    €2266 (Avg Bid)
    €2266 Oferta Promedio
    33 ofertas

    Hi I need to be listed in 1 preferably 2 exchanges for my coin (not token) and would like to be listed in one from the list here: [iniciar sesión para ver URL] if possible and without listing fee. Can you help with this?

    €208 (Avg Bid)
    €208 Oferta Promedio
    11 ofertas
    BLOCKCHAIN AUTHENTICATION 1 día left
    VERIFICADO

    SOFTWARE 1. Programming language : python / Java 2. Blockchain : etherium solidity 3. Interface : PhP framework 4. API : postman MODULE 1. User Authentication 2. Device Authentication 3. Evidence collection PAYMENT 1. Maximum : USD300 total project cost 2. Payment through freelancer / paypal 3. Payment schedule : USD 50 – flow chart and algorithm USD 100 – User Authentication US...

    €401 (Avg Bid)
    €401 Oferta Promedio
    13 ofertas

    My project will implement a simple supply chain management process with 3 parties (buyer, supplier, and bank. The contract will have a simple work order (amount and price/unit, total price and insurance binder for supplier) between buyer and supplier. The bank will be able to see the contract and insurance binder. Tasks are initiate work order + work complete.

    €276 (Avg Bid)
    €276 Oferta Promedio
    10 ofertas

    I want to create a one slide software architecture diagram for my block chain based digital certificate storage/ (technology stack)verification

    €12 / hr (Avg Bid)
    €12 / hr Oferta Promedio
    1 ofertas

    This project is only for senior experts who have proven experiences in Android&iOS wallet of several crypto assets. Need to provide several digital assets like BTC, ETH, Monero, USDT Send, Receive, Exchange between assets functions to be implemented Need import/export private key Backup wallet function need Hybrid is preferred Please describe about decentralize and centralize experiences about...

    €3914 (Avg Bid)
    €3914 Oferta Promedio
    47 ofertas

    !! READ the REQUIREMENTS before you knock !! 1. You are expected to have good knowledge on areas such as; blockchain attacks/crypto-threats/solidity/Smart-contract/Hash-Algorithms/51% attacks/Sybil attack/. 2. You will need to figure out a security issue in the blockchain network. We can help you with that. Some issues can be 51% attack, Sybil attack, BGP Hijacking, Eclipse attack, Smart Contr...

    €7 / hr (Avg Bid)
    €7 / hr Oferta Promedio
    7 ofertas

    I am looking for support in designing a peer to peer energy system that utilises blockchain and the lightning network. Needs to be scalable to 1 billion transactions per second. This is just a design and proof of concept

    €712 (Avg Bid)
    €712 Oferta Promedio
    19 ofertas

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

    €1046 (Avg Bid)
    €1046 Oferta Promedio
    9 ofertas

    !! 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 ...

    €7 / hr (Avg Bid)
    €7 / hr Oferta Promedio
    5 ofertas
    MultiSig Wallet App iOS/Android 3 horas left
    VERIFICADO

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

    €3022 (Avg Bid)
    €3022 Oferta Promedio
    52 ofertas
    CRYPTO CURRENCY 1 hora left
    VERIFICADO

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

    €749 (Avg Bid)
    €749 Oferta Promedio
    18 ofertas