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Bitcoin is a crypto currency, with the creation and the transfer of the bitcoins being based on a protocol that does not depend on the central authority. The coins can be transferred through computers or through smartphones and related devices, without the necessity of having a financial institution as an intermediate. This concept was established by Satoshi Nakamoto in 2008 and it was geared towards the world of electronic cash systems. If you understand more about this topic on a professional level, then you have a better chance to enjoy the advantages of being a freelancer at Freelancer.com.

Bitcoin has its own technical part that needs to be addressed by professionals. If you are one of them, then you should be on a platform that ensures the consistency of job posting by clients. When working as a bitcoin freelancer at Freelancer.com, you will have access to many of the jobs posted by clients from all over the world and bid on those that are within your professional level. There is too much to enjoy while working at the leading freelancer platform online, including getting paid at rates that your services deserve, giving you the encouragement you need to keep on working on more Bitcoin projects.

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    45 jobs found, pricing in USD
    Develop MasterNode Coin 6 days left
    VERIFIED

    Develop Master node coin like a DASH. Complete setup - "WARNING" Before starting please write everything ho you going to work and how long does it take?

    $4225 (Avg Bid)
    $4225 Avg Bid
    10 bids

    I'm searching a company who can make ICO for my clients. Legal adivsors and using tax havens,Marketing, translate, create a website. Only companies with experience.

    $54 / hr (Avg Bid)
    $54 / hr Avg Bid
    5 bids

    Creation of a platform where the user can buy or sell bitcoin, ethereum, etereum classic, monero, dash, ripple, bitcoin cash litecoin. The site will have to be in - responsive mode and graphically clean with big and clear icons, therefore, - the user who will enter the login area (which will be a subdomain) will display the option to log in or register if you register then you will have to enter ...

    $2590 (Avg Bid)
    $2590 Avg Bid
    15 bids
    Escrow for cryptocurrency 6 days left
    VERIFIED

    Hi. I am looking for someone who can create a similar site like escrow.com in function but users will pay with some cryptocurrency like bitcoin, litecoin, .. Please contact me if you think you can do it the best.

    $841 (Avg Bid)
    $841 Avg Bid
    17 bids

    We require a coin to be created using the Quark algorithm to the spec that we request, The coin will need similar of another known coin which will be discussed once the project has been awarded. Applicant must have experience with masternodes and have experience with Quark. This will be an ongoing project which will have future benefits of working close as a team. Wallet creation to our specs and ...

    $10 - $30
    $10 - $30
    0 bids

    We are searching for a copywriter for newsletters writing / proofreading and content writing for a website and social media. Cryptocurrency knowledge is a must. Please share your previous cryptocurrency related work when applying.

    $35 / hr (Avg Bid)
    $35 / hr Avg Bid
    31 bids

    We need an experienced developer to build our crypto trading bot. You must have a portfolio for this and should be able work fast. Please do not send automated proposal, because we would ignore it, If you think you are fit for this job please feel free to apply.

    $35 / hr (Avg Bid)
    $35 / hr Avg Bid
    17 bids
    create token erc20 eth 5 days left
    VERIFIED

    create erc20 token through an intelligent contract

    $122 (Avg Bid)
    $122 Avg Bid
    3 bids

    Existing Cryptocurrency needs a wallet update fork with all existing transactions. Must have experience in blockchain development and forking existing cryptocurrencies.

    $2743 (Avg Bid)
    $2743 Avg Bid
    32 bids

    I would like to build crypto trading bot for small transactions and crypto news research ( mainly new coins with great ideas) for investors. I will send you invitation link to our forum during interview Looking forward to working with you

    $885 (Avg Bid)
    $885 Avg Bid
    8 bids

    we want to build a cryptocurrency exchange not token exchange not ICO website crypto exchange BTC BCH ETH LTC XRP NEO USDT also, we want to add two fiats for trading all coins should be able to trade with each other as a pair and for fiat as well *** you can download requirements document and read that in depth and word by word *** if you want to have a chance to choose as this project freelanc...

    $6000 - $8000
    Featured Sealed
    $6000 - $8000
    75 bids

    I have long term project and I need software company who can work on blockchain development with us. You should be available for 8 hours at least in a day

    $29 / hr (Avg Bid)
    $29 / hr Avg Bid
    18 bids

    Looking for another developer to help work on a Cryptocurrency Exchange.... You will be helping with this but so in theory you're doing half the work and probably way less since he started a week ago with ready scripts. do not bid submit higher bid because we're not launched and bonus with a long term opportunity will be given depending on how you work. Languages Required: (PHP / BootS...

    $171 (Avg Bid)
    $171 Avg Bid
    18 bids

    Looking for another developer to help work on a Cryptocurrency Exchange.... You will be helping with this but so in theory you're doing have the work and probably way less since he started a week ago. Languages Required: (PHP / BootStrap / MySQL / HTML5 / CSS3). Requirements: 1) Work on two Ready scripts. 2) Connect the final work with the template provided. 3) Connect and integrate all A...

    $1106 (Avg Bid)
    $1106 Avg Bid
    12 bids
    Block chain tor website 5 days left
    VERIFIED

    Hey, i need to make a tor website Configuring Onion Services for Tor. If you know about tor and blockchain please only send me the proposal. [login to view URL]

    $813 (Avg Bid)
    $813 Avg Bid
    20 bids

    i need s script wich allows me to set entry, stop loss and take profit at the same time it needes to automatic set the quantity based in the risck i choose eg: if a choose risk 1% and a stop loss of 10 points from my entry it will set the lot size that when the stop loss is triggered it will lose 1% of my account balance the take profit will automatically calculated based n the stop loss and a ...

    $24 / hr (Avg Bid)
    $24 / hr Avg Bid
    3 bids
    BTC FOR poleznifrko 4 days left
    VERIFIED

    PROJECT INTENDED TO EXCHANGE NON-SUCCESSFUL OPERATION

    $10 - $30
    $10 - $30
    0 bids

    What i need now is to make a arbitrage bot for coin trading. The bot should announce me the time when there is a chance of arbitrage in 10 platforms. Must have knowledge and skill in building crypto technique and building bot in python. Willing to pay higher rate for one who proves his own skill in this area.

    $801 (Avg Bid)
    $801 Avg Bid
    20 bids

    We require a coin to be created using the Quark algorithm to the spec that we request, The coin will need similar of another known coin which will be discussed once the project has been awarded. Applicant must have experience with masternodes and have experience with Quark. This will be an ongoing project which will have future benefits of working close as a team. Wallet creation to our specs and ...

    $1772 (Avg Bid)
    $1772 Avg Bid
    16 bids
    Simple Ethereum Token Swap 4 days left
    VERIFIED

    I want a simple contract where users send the old version of our token and instantly receive the new version of our contract. For each 1 token of the old version they send they will receive 3 of the new token. this should be automated and gas is paid by the user when they send the old contract so I shouldnt have to add eth for gas for this function. I need this asap.

    $212 (Avg Bid)
    $212 Avg Bid
    14 bids

    I am looking for an international Law Attorney with a solid background in the Crypto, Fin tech and ICO space.

    $296 (Avg Bid)
    $296 Avg Bid
    12 bids

    We need a clone of CoinBase site to buy crypto

    $2078 (Avg Bid)
    $2078 Avg Bid
    22 bids
    ICO whitepaper 3 days left
    VERIFIED

    i need someone that can create a good quality ico whitepaper that explains what the overall business is about. show your portfolio.

    $194 (Avg Bid)
    $194 Avg Bid
    27 bids
    Crypto Exchange 2 days left
    VERIFIED

    Hello, I need a crypto exchange line [login to view URL] and others

    $2063 (Avg Bid)
    $2063 Avg Bid
    25 bids
    $65 Avg Bid
    3 bids

    [login to view URL] is where this alert will be focused on only one asset. You have bid and ask prices I want an alert when these prices hit 0.00000009 and 0.00000011. I can have email alerts and or pop up or whatever as long as it is in real time

    $118 (Avg Bid)
    $118 Avg Bid
    3 bids

    Hi This is altcoin creation task. No difficult algorithm. Just only fork the bitcoin and create altcoin for specific requirement. Please have a look attached file.

    $1325 (Avg Bid)
    $1325 Avg Bid
    11 bids

    Hello, everyone. We are going to build crypto currency exchange site (CEX). If you was working on CEX UI, Please contact me.

    $2277 (Avg Bid)
    $2277 Avg Bid
    37 bids

    I need Developers that have experience with Blockchain technology Skillset needed Bitcoin Core, masternodes, C/C++, Api Development, ERC 20,

    $19 / hr (Avg Bid)
    $19 / hr Avg Bid
    21 bids

    help me creating erc 20 smart contract

    $145 (Avg Bid)
    $145 Avg Bid
    12 bids

    I need a mining script for my blog. where only the customer visits the site, he is already mining for me. [login to view URL]

    $130 (Avg Bid)
    $130 Avg Bid
    8 bids

    Its was built using the waves platform

    $21 / hr (Avg Bid)
    $21 / hr Avg Bid
    22 bids
    bitmex trading bot bitcoin 20 hours left
    VERIFIED

    hello i would like a gui bot that i can manage a lot of api's. i want to buy sell stop loss and all bitmex features. python api

    $599 (Avg Bid)
    $599 Avg Bid
    15 bids
    Bitmex Bot multiple api 20 hours left
    VERIFIED

    hello i would like a gui bot that i can manage a lot of api's. i want to buy sell stop loss and all bitmex features.

    $9 - $35
    $9 - $35
    0 bids

    This Job is only for USA members . Our firm announces a job opening for a Financial Operations Assistant. This position is available immediately Office Job -- Full Time or Part Time. No experience necessary, Training [login to view URL] for advancement. The ideal candidate would have to be a very serious and ethical person. This Job is only for USA members .

    $35 / hr (Avg Bid)
    $35 / hr Avg Bid
    15 bids

    Content writing on Bitcoin/cryptocurrency

    $527 (Avg Bid)
    $527 Avg Bid
    35 bids
    Develop Crypto Trading Software 4 hours left
    VERIFIED

    I need someone who can develop crypto trading software. platform I'm focusing - Binance, Bittrex

    $463 (Avg Bid)
    $463 Avg Bid
    25 bids

    My company is in need of a fully functional Crypto Exchange for BTC and ERC20 tokens That has the similar working features and functionality as hitbtc but with a unique front end. High-security backend end functionality with 2 FA authorization and Google recaptcha at login. Script must have liquidity API script for instant liquidity. Must have a viewable working demo or past crypto exchange job c...

    $2356 (Avg Bid)
    $2356 Avg Bid
    46 bids

    i want to make auto payment system with bitcoin for my website [login to view URL] im have payment system paypal and 2checkout and i want to add payment with bitcoin i need to implement the new payment method with api of bitcoin

    $488 (Avg Bid)
    $488 Avg Bid
    22 bids
    Create a new Crypto Currency 2 days left
    VERIFIED

    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.

    $3526 - $5877
    Featured Sealed NDA
    $3526 - $5877
    47 bids

    We require a coin to be created using the Quark algorithm to the spec that we request, The coin will need similar of another known coin which will be discussed once the project has been awarded. Applicant must have experience with masternodes and have experience with Quark. This will be an ongoing project which will have future benefits of working close as a team. Wallet creation to our specs and ...

    $1180 (Avg Bid)
    $1180 Avg Bid
    9 bids

    Hi, I'm looking for an exchange website with all the features of sites like binance, bitrex, ready to customize and put in my project in motion.

    $2576 (Avg Bid)
    $2576 Avg Bid
    25 bids

    Hello, Looking for an ICO adviser who is an expert with solid Tokenomics and Financial Model background. You must have a solid international background in business, ICO funding and private sales. The model will be a Crypto Currency exchange, if there is anyone that has executed an exchange and ICO platform successfully than this is for you. Thank you.

    $239 (Avg Bid)
    $239 Avg Bid
    5 bids

    Hi This is altcoin creation task. No difficult algorithm. Just only fork the bitcoin and create altcoin for specific requirement. Please have a look attached file.

    $1041 (Avg Bid)
    $1041 Avg Bid
    7 bids
    Multi Asset Wallet 14 hours left
    VERIFIED

    Wir benötigen ein Multi-Asset Wallet mit folgenden Funktionen: - Administrierbar, damit man eingenständig Coins hinzufügen kann - AltCoins , ICO , Token - User Login , mit allen Wallet`s die man sich erstellen kann - Charts - History - Senden/Empfangen - Market API Anbindung Beispiel : [login to view URL] We need a multi-asset wallet with the following features: - administrabl...

    $1807 (Avg Bid)
    $1807 Avg Bid
    11 bids

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