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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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    online baccarat & sport bet game Bitcoin, Webmoney is Good when available.

    $1131 (Avg Bid)
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    17 bids
    Cryptocurrency Exchange 6 days left
    VERIFIED

    Looking for someone to develop an simple cryptocurrency exchange script. Something like (References): [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] Either you develop an new exchange from scratch, modifying an existing from open source (github) or editing an existing exchange script you already have. I will only have BTC markets (BTX/xxx - Traiding pairs) so you should have good knowledge in Bitcoin API and JSON Calls/Queries. You should have previous experience in this kind of works and should be able to link to previous cryptocurrency exchange project (URLS) and also give me an price which includes installation & initial support. Requirements: - User friendly UI. - Simple registration (E-mail, password, accept Terms of Usage page), i'm over 18 years old. - Admin page for me as administrator - Guide how to add/remove new traiding pairs (Insctruction) I have unlimited possibiliies of setting up VPS hosting (Ubuntu Servers witch php,apache,mysql and dependencies) -Bid only if you have done cryptocurrency exchanges previously (Link to this projects) -All rights reserved (should have full control of source files, graphic elements and insctructions) when project is delievered and setup. Best price win (only accept bids with references to previous works)

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    Hello I am looking for Cryptocurrency trade platform. I will appreciate any readymade system. Please bid, if you are experienced on it. If you got demo, share link. i am looking for something like binance or yobit or cobinhood Do not bid more than of my budget or do not bid, if your price is more than of my budget. No time waster [login to view URL] you show demo, also i will required if its your demo.

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    i want design website like [login to view URL] intergration bitgo...usd 200. or negoticiateble price.

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    31 bids

    Live and offline courses by experienced tutors

    $500 (Avg Bid)
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    1 bids

    The goal of this project is setting up a cryptocurrency exchange that would enable trading fiat currency for major cryptocurrencies(BTC,ETH,DASH,BCC,XRP,XLM) and trading altcoins for bitcoin and ETH. The exchange needs to have several payment / deposit options when trading fiat: SEPA, International Bank Wire, Visa, Mastercard and PerfectMoney. Setting up an account must include verification process(KYC, ALM).Vote system for the new cryptocurrencies add to exchange ([login to view URL]). Affiliate program ([login to view URL]). An option for two-factor authentication for security reasons is also necessary. We require full UI. If the project is completed successfully, we would look forward to further cooperation.

    $1602 (Avg Bid)
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    online gambling site 6 days left
    VERIFIED

    I need online gambling/casino site/scrypt

    $1066 (Avg Bid)
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    20 bids

    Hello I am looking for Cryptocurrency trade platform. I will appreciate any readymade system. Please bid, if you are experienced on it. If you got demo, share link. i am looking for something like binance or yobit or cobinhood Do not bid more than of my budget or do not bid, if your price is more than of my budget. No time waster [login to view URL] you show demo, also i will required if its your demo.

    $4070 (Avg Bid)
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    We want our coins registered in crypto exchange for trade / exchange. Listing in Bittrex/Binance/BitHumb/HitBTC/Luno Only those who have experience in registering cryptocurrency in crypto exchange and received by crypto exchange. We only pay if it works. For more information please contact us!

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    I am looking for THREE very experienced ACADEMIC and ARTICLE research writers. You MUST have experience in being able to RESEARCH and Write very technically strong Articles and Academic Papers on topics relating to Cryptocurrencies, Bitcoin, the Blockchain and all related areas including the criminal aspect which is linked to the industry. Article length is expected to be approximately 1000 words Blog Postings are expected to be approximately 1000 words Academic papers are expected to be approximately 5000 words Very strong research skills are required. This is a LONG TERM project As it allows you to be paid in advance for 50 Articles. I expect you to work and produce 1 to 3 articles per week, which are up to date and VERY current. You must be very grounded in research methodology as the research you compose has to very technically strong

    $43 / hr (Avg Bid)
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    43 bids

    We want to add our cryptocurrency on crypto exchange. Bittrex/Binance/BitHumb/HitBTC/Luno Only have registered cryptocurrency in crypto exchange and received. We only pay if it works. For more information, please contact us!

    $481 (Avg Bid)
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    8 bids
    TRading bot 5 days left

    DO NOT BID WITH PLACEHOLDER BID!!!! ANy price you put is what I will pay nothing more!!!! need a programmer who can create a desktop application for mac or a webpage cryptocurrency trading bot. Below are the requirements for this bot: 1. Arbitrage scanner for crypto currencies 2. Strategy tester that runs a strategy with exchange data and returns a result of how profitable a strategy would be 4. Trailing stop loss with ability to set percentage of stop loss and deviation. 5. Stop limit order 6. Market order 7. OCO order (one cancels the other) I can explain it to you 8. IFD order ( if done) 9. IFD & OCO order ( if done and one cancels the other) 10. Indicator trade ( if macd crosses and rsi is above 70, or if last candle closes below lower Bollinger bands and closes again above lower Bollinger bands then a order would be made) 11. Trading view API with charts and indicators. 12. Simple user interface, easy to use interface. 13. Multiple order execution 14. Exchange API integration where I only enter secret key and it connects to each exchange, more than one at a time. 15. Able to trade on each exchange at the same time

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    The goal of this project is setting up a cryptocurrency exchange that would enable trading fiat currency for major cryptocurrencies(BTC,ETH,LISK,LTC,DASH,BCC,XRP,XLM) and trading altcoins for bitcoin and ETH. The exchange needs to have several payment / deposit options when trading fiat: SEPA, International Bank Wire, Visa, Mastercard and PerfectMoney. Setting up an account must include verification process(KYC, ALM).Vote system for the new cryptocurrencies add to exchange ([login to view URL]). Affiliate program ([login to view URL]). An option for two-factor authentication for security reasons is also necessary. We require full UI. If the project is completed successfully, we would look forward to further cooperation. Similar exchange : [login to view URL] , [login to view URL]

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    24 bids

    I require a decentralized ethereum erc20 token exchange site. It will be simple similar functions to: [login to view URL] I need to easily add tokens and remove tokens if needed. header banner ad required. mobile friendly import private key and address to fund account with tokens and ether site to look similar style as: [login to view URL] site will be on /trade/ folder as i will create a landing page developer will need to do a write up for the white paper. Need it within 7 days if you need a long time that is out of my budget do not bid!!!

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    We are looking for someone who will be able to teach and fork a Blockchain like Dash. Also we need a Wallet and a Block Explorer The code needs to be pushed on github step by step from the fork (initial commit) and all the modification need to be done after the fork. It can be premine and also we need an automation masternode setup

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    Create BTC Wallet 4 days left
    VERIFIED

    Project for Bing - add BTC to wallet

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    15 bids
    CryptoCurrency Development 4 days left
    VERIFIED

    We need to build a crypto currency website. We need to build our own cryptocurrency with trading, staking, lending, wallet features.

    $2131 (Avg Bid)
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    specifically looking for someone who knows how to setup a TOR website, Bitcoin payment, etc. send the links to the TOR work you have done.

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    Hello , I am looking for bitcoin trading. User can buy the bitcoin / Sell the bitcoin. similar to http://www.localbitcoin.com. this is a big website. i want a small version of this website. let me know if you have previous experience in this project

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    Create web apps blockchain in supporting Food fraud prevention in Food supply chain. Implement the Poof of work and Smart contract in order to check provenance and traceability of food.

    $636 (Avg Bid)
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    need a webdesigner how is familiar with bitcoin / network scurity / hidden service

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    We need some one to install and configure the Draglet criptocurreny exchange software into an AWS CentOS Instance and create a mini Howto, such a way we can reproduce the instalation proccess into another instance. The instalation manual can be found here: [login to view URL]:Installation_manual The files to download and docs here (4.0.3): [login to view URL]

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    Ideally I am looking for solution which is already delivered in production and tested in production Hence with small new changes as per my specs and new UI it can be deployed in production See the specs with more details Do not bid without reading the specs Do not bid lower price that you are not willing to take .

    $4655 (Avg Bid)
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    58 bids
    Crypto exchange platform 1.0 3 days left
    VERIFIED

    Function: Registration – People can register and verify phone, email, DI / passport with KYC. After register system should generate a BTC wallet, a ETH wallet, and a Money wallet for each user. Deposit – User can deposit BTC / ETH from his private wallet to system wallet using our system. For money wallet deposit, we will handle it manually, user bank transfer money to us and we manually adjust the the money wallet. Withdrawal - reverse the deposit process Trading – User A : Seller with 2 BTC in his system BTC wallet User B : Buyer with 20,000 USD in system money wallet Withdrawal - reverse the deposit process Trading – User A : Seller with 2 BTC in his system BTC wallet User B : Buyer with 20,000 USD in system money wallet User A issues post that “sell BTC for 8000, Max. 2 BTC”. System will freeze the 2 BTC in his BTC wallet User B see the post and interested. Press “Buy 1 BTC” 8000 USD will automatically transfer from User B’s money wallet to User A’s money wallet 1 BTC will transfer from User A’s BTC wallet to User B’s BTC wallet. This is the UX [login to view URL] Questions: 1. Which framework will you use and suggest using? 2. The security of the system, how do you present hacking? 3. For the user wallet, are you using 3rd party wallet or self-built wallet 4. If it is 3rd party wallet, which company will you suggest? 5. If I want to have self-built central wallet, can you do it? 6. Is there any trading fee for self-build central wallet? And why do we hv it? 7. What is the total cost of the project, including UX design, with 3rd party wallet & self-built wallet

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    Crypto exchange platform 3 days left
    VERIFIED

    Function: Registration – People can register and verify phone, email, DI / passport with KYC. After register system should generate a BTC wallet, a ETH wallet, and a Money wallet for each user. Deposit – User can deposit BTC / ETH from his private wallet to system wallet using our system. For money wallet deposit, we will handle it manually, user bank transfer money to us and we manually adjust the the money wallet. Withdrawal - reverse the deposit process Trading – User A : Seller with 2 BTC in his system BTC wallet User B : Buyer with 20,000 USD in system money wallet Withdrawal - reverse the deposit process Trading – User A : Seller with 2 BTC in his system BTC wallet User B : Buyer with 20,000 USD in system money wallet User A issues post that “sell BTC for 8000, Max. 2 BTC”. System will freeze the 2 BTC in his BTC wallet User B see the post and interested. Press “Buy 1 BTC” 8000 USD will automatically transfer from User B’s money wallet to User A’s money wallet 1 BTC will transfer from User A’s BTC wallet to User B’s BTC wallet. This is the UX [login to view URL] Questions: 1. Which framework will you use and suggest using? 2. The security of the system, how do you present hacking? 3. For the user wallet, are you using 3rd party wallet or self-built wallet 4. If it is 3rd party wallet, which company will you suggest? 5. If I want to have self-built central wallet, can you do it? 6. Is there any trading fee for self-build central wallet? And why do we hv it? 7. What is the total cost of the project, including UX design, with 3rd party wallet & self-built wallet

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    I need Ethereum payment Accept system. like as a [login to view URL] system. if you have any question please ask me. Thanks

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    My name is Omar Saeed. I am Senior Financial Consultant of an online B2B ecommerce platform). Our Company is in the process of Initial Coin Offering (ICO) and in that context has created the following documents: • Business & Expansion Plan • Tokenomics paper Both these together form the White-Paper for ICO Token Offerings. We need a price quote from you regarding the below services: • Technical review of the Business & Expansion Plan and the resultant Tokenmics paper • Merging these two documents together – as White Paper • Document editing • Graphic designing and formats The proposal must also include: 1. TIMELINE The work will be completed within XXX working days from the date of project approval. 2. COMMERCIAL FEES The commercial terms agreed upon between the Parties are the following: • Technical Review : XXX • Editing: XXX . Graphics : XXX Looking forward to hear from you soon. Thanks and Best Regards,

    $532 (Avg Bid)
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    Crypto project assistance 2 days left
    VERIFIED

    Generate erc20 supported wallets for users which are able to be used to send and receive transactions and connects to the blockchain.

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    I need a C++ developer that can add a feature to the litecoin blockchain.

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    I need someone to write latest news articles on crypto currency world on regular basis. Articles can be picked up from various crypto news sites (like [login to view URL], [login to view URL], [login to view URL] etc) and re-written to pass the copyscape professional. Each article should be approx 500-700 word length, informative and interesting, A writer with good writing style will be engaged regularly on his project if he can produce plagiarism-free contents. INR 250 for each re-written article shall be paid.

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    Exactly like [login to view URL] but branded to my needs some advice will be good to

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    meu projeto é um site onde as pessoas vão poder pagar seus boletos e até fazer recargas de celulares utilizando as seguintes moedas:Bitcoin,Bitcoin Cash,Litecoin,Ethereun,Iota,Decred e Ripple,tudo no automático.o nome do site será [login to view URL]

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    PLEASE READ BEFORE BIDDING (NO ETHEREUM BASED BLOCKCHAIN) I wait from a blockchain developer to integrate this feature to the bitcoin fork: - Set sending limit (Anyone can set a send limit for a specific address using the private key, for example i set to my address to be able to send only 0.3 BTC under 24 hours, i can remove this condition with my private key, or modify it) - More informations from chat. Only experimented C++ programmer and blockchain expert required for this task.

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    PLEASE READ BEFORE BIDDING (NO ETHEREUM BASED BLOCKCHAIN) I wait from a blockchain developer to integrate this feature to the bitcoin fork: - Set sending limit (Anyone can set a send limit for a specific address using the private key, for example i set to my address to be able to send only 0.3 BTC under 24 hours, i can remove this condition with my private key, or modify it) - More informations from chat. Only experimented C++ programmer and blockchain expert required for this task.

    $848 (Avg Bid)
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    PLEASE READ BEFORE BIDDING (NO ETHEREUM BASED BLOCKCHAIN) I wait from a blockchain developer to integrate this feature to the bitcoin fork: - Set sending limit (Anyone can set a send limit for a specific address using the private key, for example i set to my address to be able to send only 0.3 BTC under 24 hours, i can remove this condition with my private key, or modify it). Only experimented C++ programmer and blockchain expert required for this task.

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    We need our own blockchain 2 days left
    VERIFIED

    We are looking our own blockchain website developer, please bid only if you have experience in blockchain development

    $4162 (Avg Bid)
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    Russian speakers only!!! Hello. I am looking for someone who can advise my partner on the specifics of the ICO. He must understand how the ICO is conducted and know the platforms, and so on. There is no need for super professionalism, especially now there are none. In the future, cooperation is possible, since the project is ambitious and promising. Your interest here is to participate in providing a high-tech section of a large investment project. Or just help in the development of the project. Добрый день. Ищу человека,который сможет проконсультировать моего партнера по специфике ICO. Он должен понимать, как проводятся ICO, знать соответствующие платформы и тп. Сверхпрофессинализма не требуется, тем более сейчас таких и нет. В дальнейшем возможно сотрудничество,так как проект амбициозный и многообещающий. Ваш интерес здесь-интересом может быть участие в обеспечении хайтек-раздела большого инвестиционного проекта. Или просто помощь в развитии проекта.

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    I need Bitshares Expert 2 days left
    VERIFIED

    I need bitshares expert to integrate CVCoin trading. If you are bts expert, please bid. Regards

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    You must have demonstrable and in depth knowledge in the field of Crypto Currencies. We require an analyst to produce 2 crypto coin analyst reports as part of this job. The reports can be relatively short i.e 2-3 pages max but must be very in depth and include your recommendation and analysis of several key criteria for each coin you report on. We will of course provide further details on the project. Ongoing, long-term projects will be offered to Freelancers that fulfill these requirements. ***This is an initial test project which will be used to guage your skills. A total of 2 reports will be required at an offer price of $20. Thank you. ***

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    i am looking a dev to develop a coin like pivx Freelancer must have experience in create similar coin,And make a block explorer include support for pre-mine .i will support 10 vps server node and antminer d3 x11 algo.

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    Need Assistance installing and configuring Gunbot Autoconfig for Crypto Trading. I have a windows virtual and I'm running Gunbot XT and need assistance installing and configuring the auto config utility to allow dynamic changes to the config file based on data from Tradingview. You must have experience with Gunbot and Gunbot Autoconfig to be considered for this project.

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    Blockchain developer 1 day left
    VERIFIED

    Blockchain developer for a Pre-ICO smart contract

    $353 (Avg Bid)
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    20 bids

    I need someone to write latest news articles on crypto currency world on regular basis. Articles can be picked up from various crypto news sites (like [login to view URL]) and re-written to pass the copyscape professional. Each article should be approx 500-700 word length, informative and interesting, A writer with good writing style will be engaged regularly on his project. Rs. 250 for each re-written article will be paid.

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    Looking for an experienced bounty manager to create and manage our bounty campaign for an ICO. 1. ICO ANNOUCEMENT 2. BOUNTY CAMPAIGN ANNOUNCEMENT 3. MANAGE THE BOUNTY CAMPAIGN ITSELF We are an upcoming ICO Project and need a bounty manager for an ICO camapign. Your tasks include community management for our different Bounty Campaigns and Airdrops for an upcoming ICO for our exchange-based Cryptocurrency. Must be someone with experience in managing bounty campaigns and basic understanding in cryptocurrencies.

    $611 (Avg Bid)
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    8 bids

    I need you to write some articles, blogs, contents about cryptocurrency & Blockchain technology. Highly experienced writer needed. Project is not for time wasters.

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    9 bids

    Need to create HYIP site with binary plan which integrate using Bitcoin payment API Open to experienced developer who has built the same site

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    PLEASE READ BEFORE BIDDING (NO ETHEREUM BASED BLOCKCHAIN) I wait from a blockchain developer to integrate this feature to the bitcoin fork: - Set sending limit (Anyone can set a send limit for a specific address using the private key, for example i set to my address to be able to send only 0.3 BTC under 24 hours, i can remove this condition with my private key, or modify it). Only experimented C++ programmer and blockchain expert required for this task.

    $21 (Avg Bid)
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    1 bids

    PLEASE READ BEFORE BIDDING (NO ETHEREUM BASED BLOCKCHAIN) I wait from a blockchain developer to integrate this feature to the bitcoin fork: - Set sending limit (Anyone can send a send limit for a specific address using the private key, for example i set to my address to be able o send only 0.3 BTC under 24 hours, i can remove this condition with my private key, or modify it). Only experimented C++ programmer and blockchain expert required for this task.

    $25 (Avg Bid)
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    1 bids

    I need some expert writer who has great knowledge on Cryptocurrency/Blockchain and can write content about them. Also who can write whitepaper please bid in this job!

    $143 (Avg Bid)
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    27 bids

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