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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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    34 trabalhos encontrados, preços em EUR
    ICO listing on ICO websites 6 days left
    VERIFICADO

    ICO listing task: Accurate data entry. Looking for somebody with ICO listing experience to list our client's ICO on major ICO listing sites. Please mention your experience in this regard and how you plan to go about it. You will first do your research and provide the list of websites to list the ICO and their conditions if any. Upon approval by us you will then proceed. You will be provide...

    €133 (Avg Bid)
    €133 Média
    1 ofertas

    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...

    €1067 (Avg Bid)
    €1067 Média
    20 ofertas

    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

    €365 (Avg Bid)
    €365 Média
    12 ofertas

    I need to make a new coin using open source of current one, before you bid note you should have experience in fork POS coins before and make everything work probable, contact me for all coin specifications. Please bid within my budget...

    €602 (Avg Bid)
    €602 Média
    9 ofertas

    I am looking for a Native writer for some Articles on the subjects of Cryptocurrency, the Blockchain Technology, and ICOs. The articles are meant to be published on different websites related to the topics mentioned. The articles can be targetted for readers with different knowledge of the subject. Also highly experienced in writing ICO whitepapers is a plus. We have a lot of writing tasks regard...

    €9 - €26
    Secreto
    €9 - €26
    6 ofertas

    Need an A to Z, Blockchain, Bitcoin, Smart contract, ICO, White papers expert, who have completed a project successfully and can share white papers + project, please share your project link in the bid. Many thanks

    €2091 (Avg Bid)
    €2091 Média
    31 ofertas
    Develop Exchange (Crypto) 5 days left
    VERIFICADO

    I want someone who has done cryptocurrency exchange. Basically, I'm trying to complete exchange with the low budget. The exchange like a binance, bittrex and must have to have all function same as other exchange. Different Market, API, Tracking my Budget is just 500$

    €655 (Avg Bid)
    €655 Média
    20 ofertas

    Searching a telegram bitcoin investment bot with: deposit withdrawl reinvest balance referrals ref-link infos

    €216 (Avg Bid)
    €216 Média
    9 ofertas

    Budget is $500 PHP & Java Web based applicated that uses Exchanges API (Yobit & Cryptopia with the option to add more exchanges). Must fetch latest data, as well as execute a 3-step trade proccess if specific variables are met (formulas will be provided in a working excel document). for example. Sell BTC to buy DOGE. THEN, sell Doge to buy ETH. Then use that ETH to buy BTC. Configurable...

    €427 (Avg Bid)
    €427 Média
    11 ofertas
    blockchain consultation 5 days left
    VERIFICADO

    we are exploring few blockchain use-cases and we need someone to consult and develop

    €187 (Avg Bid)
    €187 Média
    11 ofertas

    I need a PIVX fork. With wallets compiled and masternode configurate. Should include genesis and checkpoint changes also. Deliver working.

    €772 (Avg Bid)
    €772 Média
    11 ofertas

    Hello Everyone!!! This will be a unique and successful platform. The business strategy and what we are offering is one of kind. It will be one of top 10 Crypto-Currency entities the world. If you're looking for long term then stop and bid because this is for you, this once in a life time opportunity...DO NOT MISS IT!!! Languages Required: (PHP / BootStrap / MySQL / HTML5 / CSS3). Requireme...

    €376 (Avg Bid)
    €376 Média
    18 ofertas

    Hello, I’m a programmer who wants you to make a tool to trade automatically instead of me as I’m busy now. Requirements Ruby skills What I want you to do 1. Making a function to calculate a certain price to place an order, in detail, (1+percentage)*current price or (1-percentage)*current price 2. Making a function to cancel an order 3. Making a function to place an order Deadl...

    €184 (Avg Bid)
    €184 Média
    7 ofertas

    I want to fork Steem blockchain and want to connect with my own proof of content network. developer need to fork steem blockchain and deliver me api and wallets which required. come up with what you can provide, timeline and cost.

    €1036 (Avg Bid)
    €1036 Média
    13 ofertas

    We are looking for someone who can help us with marketing in the Chinese/Korean region. I want someone who must be experienced in this field. You need to show us some example(s) of your previous work. Thanks in Advance.

    €367 (Avg Bid)
    €367 Média
    4 ofertas
    EXCHANGE SITE 3 days left

    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.

    €1424 (Avg Bid)
    €1424 Média
    39 ofertas
    crypto learning 2 days left

    hi i would like to learn how to buy and sell crypto like bitcoin and etheruim in Binance or any another market place i just need to learn how to buy and how to sell how to exchange i need good free lancer to learn me about this with good profit 1000 usd i will learn fast

    €892 (Avg Bid)
    €892 Média
    26 ofertas

    hello i would like to learn about crypto and forex trade in the Binance website and need good free lancer to learn me about the trade in crypto and forex i want to learn how to buy and how to sell and every thing about crypto and how it work with good payment i will paid

    €943 (Avg Bid)
    €943 Média
    9 ofertas

    I'm looking for someone who has an experience in building a lending platform on cryptocurrency based. You don't need to develop cryptocurrency we already have the token. I'm willing to pay 100$ for full service!! If you already have the website you can sell...its easy...

    €331 (Avg Bid)
    €331 Média
    7 ofertas

    I need A Cryptocurrency Wallet App developer to fix my wallet The biggest issue we are seeing right now is that the client will not stay connected to the server. It connects then immediately disconnects with no errors from the client or the server. The server is at the correct block height and seems to talk to the core node just fine Outside of that it needs to be upadated to support the fork at...

    €1887 (Avg Bid)
    €1887 Média
    11 ofertas

    Hi, We are looking for someone or a company who have many years experience in Wordpress, Crypto like Bitcoin etc. and Web development. We need someone who can extend the functionality of the provided Wordpress theme. The requirements can be found in the uploaded ppt.

    €448 (Avg Bid)
    €448 Média
    82 ofertas

    Hello, I am looking for a programmer to create and secure ERC20 token. I am creating an ICO, where tokens will be backed by real estate projects in Central Europe and holders of those tokens will receive profit share in ETH. Thank you, Jiří Cipín

    €314 (Avg Bid)
    €314 Média
    13 ofertas

    OTC Trading P2P Trading Escrow System Simular to localbitcoins and paxful Needs a clean UI Easy to use admin interface User must be able to buy and sell btc able to upload btc to wallet and transfer out when they like I want the same functions as [login to view URL] or [login to view URL]

    €45 / hr (Avg Bid)
    €45 / hr Média
    47 ofertas

    Hello, I am looking for an experienced ICO advisor and ICO Manager. I am looking to open a revolutionary Crypto Currency Exchange and wallet service platform. There will be an ICO for Utilty token that will be used on the platform. This will be different and will succeed based on what we are offering. Kindly contact me so we can discuss this. Thank you.

    €641 (Avg Bid)
    €641 Média
    25 ofertas

    I am looking for a professional Whitepaper for a new ICO we will be launching. 15Pages+ with good market research included some economics with references and Charts. I will give you around 40% of the info I already have with an overview of the product. Knowledge of Token sales important and how to include it in the Whitepaper. High-level Knowledge of the following is needed: - Electricity market...

    €633 (Avg Bid)
    €633 Média
    68 ofertas
    Crypto trading bot 1 day left
    VERIFICADO

    I want to make a crypto trading bot (ccxt or other) that is capable of using the Coinigy API or the API of most exchanges. This bot must be able to work on a VPS and its auto start can be programmed on a Windows server. It must be able to control through a friendly graphical environment Must be able to run on at least 20 trading pairs at the same time. It should be possible to add strategies and ...

    €214 - €643
    Destacado Secreto
    €214 - €643
    16 ofertas

    I am looking for a developer who can integrate Top 10 ERC 20 Tokens to my website. Only Experienced Developers needed.

    €218 (Avg Bid)
    €218 Média
    5 ofertas

    I need to replace old parameters to new one written with c++, in source code of the current working coin,the replace parameters such as and not limited to: Name, total supply (number of coin), prefix, block time, wallet, ……. pre-mined coin (total number of coins ). i expect to receive: New files with new parameters, work fine without any issue with it's all functions.

    €162 (Avg Bid)
    €162 Média
    22 ofertas

    hi i would like to make script speech recognition to text and make it in text its like to chnage the audio to text file it im already have some audios thats i want to solve them and exchange to txt

    €994 (Avg Bid)
    €994 Média
    16 ofertas

    Lập trình ERC20 với 1 tỷ Token trên nền tảng ETH. Với mã là BSE và Token gán thêm 0x để có thể dùng myetherwallet để chứa token và cộng đồng có thể chuyển cho nhau qua ví với ví.

    €328 (Avg Bid)
    €328 Média
    3 ofertas

    Hi, I want an app for android with nfc capability. This app will purchase like cola from a vending machine with nfc technology. The transaction will be in bitcoins and app should have a bitcoin wallet.

    €953 (Avg Bid)
    €953 Média
    16 ofertas

    I am looking for an experienced development team to develop cryptocurrency wallet which support bitcoin and ERC tokens. If you don't have experience, don't apply to this job.

    €32 / hr (Avg Bid)
    €32 / hr Média
    53 ofertas

    Wanted Help Regarding Mining Crypto Coin Monero. You must be thoroughly knowledgeable.

    €414 (Avg Bid)
    €414 Média
    9 ofertas
    Create a new Crypto Currency 2 days left
    VERIFICADO

    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.

    €3004 - €5007
    Destacado Secreto ADC
    €3004 - €5007
    43 ofertas

    Artigos da Comunidade dos Principais Bitcoin