Bitcoin Jobber og konkurranser

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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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Prosjekt/Konkurranse Beskrivelse Bud/Bidrag Ferdigheter Startet Avsluttes Pris (USD)
developing trade system of cryptocurrency exchange We are developing Cryptocurrency Exchange web platform. We are looking for a person who can develop trade part of this system. Trading system should develop professionally like others professional exchanges with High performance (capable of processing millions orders per second) So we are looking for team member who is: • Expertise on API developing • Expertise on forex • ... 10 Bitcoin, Kunstig intelligens, Blockchain, Ethereum Feb 18, 2018 I dag6d 19t $11022
Build Cryptocurrency Exchange Platform We are looking for freelancers who can build us a Cryptocurrency exchange like [url fjernet, logg inn for å se] with few other features added. Users will be able to signup and exchange Cryptocurrencies with each other AND on other exchanges, the API of other exchanges will be integrated, meaning that if a user signs up on my website and wants to buy Ripple (and no other users on my site is ... 3 PHP, Javascript, Nettsidedesign, HTML, Bitcoin Feb 18, 2018 I dag6d 19t $3771
Build ERC20 token and online wallet Hello, I have already installed Ethereum node, and already API connected with json RPC now I need to create ERC20 token and function to manage the token. I need : - Create smart contract based by ERC20 - Send token from user ethereum address to another etherum address - Send ethereum balance from user user eth address to another eth address - Get notification if any ethereum received - G... 9 PHP, Javascript, Bitcoin, Blockchain, Ethereum Feb 18, 2018 I dag6d 18t $608
Email Contact Database of cryptocurrency/Bitcoin buyers and Traders I need a contact database(preferable email and names) of cryptocurrency buyers and sellers all over the world. I need to see a small sample. what is the size of your data? 5 Dataregistrering, Excel, Nett-scraping, Bitcoin, Data Extraction Feb 18, 2018 I dag6d 17t $24
ICO web site design with kyc and affiliate need great modern looking ICO website in same style as [url fjernet, logg inn for å se] it will have whitelist, kyc, affiliate program, member area, newsletter or auto responder built in. site is one page and member area is one page. affiliate stats shown. 9 Nettsidedesign, HTML, Bitcoin, Blockchain, Ethereum Feb 18, 2018 I dag6d 16t $553
Bitcoin mining expert I want a bitcoin mining expert to develop a automated bitcoin mining program to install on my computer that will use my computer and I get paid maximum bitcoins for doing so. 5 PHP, C-programmering, Python, Programvarearkitektur, Bitcoin Feb 18, 2018 I dag6d 12t $28
need correction in signup and some more work hi, our website is [url fjernet, logg inn for å se] I need through teamviewr : 1 : need signup work. (we need new api of coinbase add, accidentally deleted so error come). 2 : verification email logo need to change. 3 : after Login. it show MST Value 47.6 (I want to change it - need to know how). 4 : After Login - it give to buy option - it show two column - one show MST and one sho... 2 PHP, Javascript, MySQL, HTML, Bitcoin Feb 17, 2018 I dag6d 8t $23
Trader / Seller / someone with btc wallet for simplle transfer in my wallet , as i cant get it done i will pay here upfront ! Contact me for more details ! Trader / Seller / someone with btc wallet for simplle transfer in my wallet , as i cant get it done i will pay here upfront ! Contact me for more details ! 1 Bitcoin, Blockchain, Ethereum, Internettmarkedsføring, Markedsføring Feb 17, 2018 I dag2d 4t $12
CRYPTO PLATFORM WE LOOKING FOR EXPERT CODER WITH EXPERIENCE IN CRYPTOS ------------------- PLACE BID ONLY IF U HAVE ALREADY COMPLETE A SIMILAR PROJECT ------------------- Platform need to be able to buy sell bitcoin / eth / Xrp User must be able to register complete first order of max 100 Eur and after complete identification with [url fjernet, logg inn for å se] user have also to complete veri... 16 PHP, Nettsidedesign, Bitcoin, Blockchain Feb 17, 2018 I dag6d 1t $2756
install altcoins for cryptocurrency exchange We are currently working on Cryptocurrency Exchange platform. We are looking for knowledgeable team member who can add new altcoins to our platform. Responsibilities: • Install altcoins on server • Install token on server • Writing api for coin RPC interface • (IOTA, NEO, DASH, Dogecoin, Ripple, etc ….) • (Status,Eos,Trot,Tehter,etc …) Requi... 12 Bitcoin Feb 17, 2018 Feb 17, 20185d 20t $510
Blockchain Creation for a new POS/POW coin We are looking for someone that is able to create a new POS/POW coin. We have around a 7 days deadline We have the the original code we want to fork from. But need a few changes and also the wallets and block explorer creation. Let us know your past experience in this area and how quick you are able to do this. Thank you 13 C-programmering, Kryptografi, Bitcoin, Blockchain, Ethereum Feb 17, 2018 Feb 17, 20185d 19t $3545
CREATE A NEW CRYPTOCURRENCY Project Description I am looking for someone who can create a new crytocurrency and put it on coinmarketcap and also on trading [url fjernet, logg inn for å se] should be capable of premine option percentage for the genesis block for the [url fjernet, logg inn for å se] project includes. 1. Creation of new cryptocurrency. 2. Creation of website to promote the cryptocurrency with... 13 PHP, Java, Programvarearkitektur, C++ Programmering, Bitcoin Feb 17, 2018 Feb 17, 20185d 18t $1271
Customer support (discord, telegram, cryptocurrency, masternodes, dash) Provide customer support at distinct social media web sites(discord, telegram, bitcointalk, etc). Basic knowledge about cryptocurrency, DASH and masternodes could be useful. 20 System Admin, Kundebehandling, Kryptografi, Bitcoin, Kundesupport Feb 16, 2018 Feb 16, 20185d 10t $137
Need to build a website similar to CoinMarketCap Looking for someone that can build an website similar to [url fjernet, logg inn for å se] with a fully functional Altcoin chart. 33 PHP, Codeigniter, MySQL, HTML, Bitcoin Feb 16, 2018 Feb 16, 20185d 8t $1222
Blockchain expert Hello, everyone. I am building a coin. I need the qtum smartcontract forked to work with our current coin if you have rich experience, let me know your experience and budget, timeline Thanks 2 PHP, Nettsidedesign, Programvarearkitektur, MySQL, Bitcoin Feb 16, 2018 Feb 16, 20185d 8t $26
*** Ethereum smart contracts & web development expertise *** (for blockchain project) GENERAL: Experience in creating complex smart contracts on Ethereum platform is needed. Should have prior experience in initial coin offering projects and blockchain based products. ENVIRONMENT: Solidity, Ethereum Virtual Machine (EVM), NodeJS, Geth, TestRPC, Truffle v4, Atom, web3 JS API, MetaMask/MIST, Html, Css, Javascript frameworks, SQL Server 2012, Windows Server 2012 SPECIFIC: -... 5 Javascript, Juridisk forskning, Bitcoin, Blockchain, Ethereum Feb 16, 2018 Feb 16, 20185d 5t $3262
Create an ICO website asap Hello Please have experience in creating ICO website. I am looking to accept eth. I am looking to create an erc20 token. 23 Bitcoin, Ethereum Feb 16, 2018 Feb 16, 20185d 4t $738
Cryptocurrency live data and historical chart integration (WORDPRESS) I have a Wordpress theme with BuddyPress component and need to integrate cryptocurrency market data and charts into BuddyPress. I need someone serious and dedicated to my project. Therefore please DO NOT bid if you are working on several projects at the momet, and ONLY BID if you have past experience working with cryptocurrency market data project (eg. exchange APIs) with Wordpress. I am l... 11 PHP, WordPress, HTML, Bitcoin, API Feb 16, 2018 Feb 16, 20185d 1t $215
Cryptocurrency Lending Plattform I need a Lending Platform incl. ICO and QT Wallet for the POS and an internal exchange. Like this: [url fjernet, logg inn for å se] I will pay for your work and additional 3% of the ICO in the best case about 250k. 8 PHP, Bitcoin, Design, Blockchain, Web Development Feb 16, 2018 Feb 16, 20185d $178266
Experienced Blockchain Experts Needed ( C++ ) Hello All, For one of the blockchain projects, we want to empower our team with additional blockchain experts which have decent experience in this field. The following experiences are mandatory: - Good C++ Programming skills - Several past experiences on blockchain projects ( Bitcoin fork projects ) - Knowledge of Master Nodes - Knowledge of Atomic SWAPs If you feel to suit above ski... 9 C++ Programmering, Bitcoin, Programvareutvikling, Blockchain Feb 16, 2018 Feb 16, 20184d 22t $4480
Create a new crypto currency Hello everybody! I want you to create a new open source crypto currency, such as ethereum, bitcoin, dogecoin .... You will develop the solution Crypto ICO (Initial Coin Offering): trade, lending, affiliate marketing. Bitcoin Wallet Development, Crypto Coin Creation, Crypto Coin Mining, Bitcoin Pool Mining, Crypto Coin Explorer, Development of monetization, Coin Web Wallet, Blockchain... 37 PHP, Nettsidedesign, Grafisk design, Programvarearkitektur, Bitcoin Feb 16, 2018 Feb 16, 20184d 21t $1835
Linux Mining Software Looking for developer versed in ubuntu/linux to alter, change or develop a mining currency software. 10 Python, Linux, Ingeniørvitenskap innen gruvedrift, Bitcoin, Ubuntu Feb 16, 2018 Feb 16, 20184d 20t $353
crypto exchange we need a crypto exchange like binance or poloniex bitfinex. 22 C-programmering, Datamaskin-sikkerhet, Programvarearkitektur, Kryptografi, Bitcoin Feb 16, 2018 Feb 16, 20184d 19t $4818
Bounty campaign for VR Games ICO We need to create, launch and run bounty campaign for VR Games ICO [url fjernet, logg inn for å se] Pls reply with your relevant expertise. 10% of bounty budget to be rewarded to campaign manager 12 Bitcoin, Blockchain, Ethereum Feb 16, 2018 Feb 16, 20184d 12t $957
Block Chain Developers to develop my project (i want to create my Token not coin please ). Only Serious Bidders. Hello Freelancers / Companies, I am looking for the Block Chain Developers must have experience atleast on 1 project . let me clear you that i am not looking to create my coin etc . i am just looking to Token Functionality . As there are two type of projects one is to create own coin and generate coins and the other one is to simply create token not coins etc... Please confirm if you can really do... 21 HTML, Bitcoin, Angular.js, Blockchain, Ethereum Feb 16, 2018 Feb 16, 20184d 11t $2758
Crypto Wallet Programming I am designing a crypto wallet and need some help on how i could create a custom app on android OS. If you know more about block- chains let me know, I'd love to know more and would also want to add this into the app as well. 49 C-programmering, Java, Android, Bitcoin, Blockchain Feb 15, 2018 Feb 15, 20184d 9t $1672
Crypto Arbitrage Trading Bot - 1 extra Altcoin Exchange 1 Days work for an expert. Please DO NOT post a generic / Auto responser / copy & paste “contact me” / "we have 10 developers". Do Respond to 'specific points' in the Requirement Specification below in order to be considered. This is a 1st test project and there will be more work afterwards IF successful. PLEASE only apply when you meet the following requi... 7 PHP, Apache, Kryptografi, Bitcoin, Blockchain Feb 15, 2018 Feb 15, 20184d 7t $3037
Bitcoin Hardfork We are a small company that is introducing a new kryptocurrency with a bitcoin hardfork. At the moment we are doing several testing. We are searching a freelancer to support in future needs. For example - make a working wallet were you can get/earn coins without running a full node. - getting high level contact to exchanges so that they support us - does basic support auf our cores 20 PHP, Programvarearkitektur, Matematikk, Bitcoin Feb 15, 2018 Feb 15, 20184d 1t $39
Looking for Senior c# and CryptoCurrency knowledge Looking for someone with knowledge about Crypto Currencies and Crypto mining 23 C-programmering, C# Programmering, Programvarearkitektur, Bitcoin Feb 15, 2018 Feb 15, 20184d $31
I Need a New POS Cryptocurrency Hi I need a new POS cryptocurrency that uses masternodes (obviously). I don't mind if you adapt an existing coin. It has to have some sort of selling point, please contact me with any ideas you have. I also need you to make a wallet that can be downloaded form the website. thanks for your interest 16 Javascript, Bitcoin, Coding, Blockchain, Ethereum Feb 15, 2018 Feb 15, 20183d 23t $1348
Program Crypto Exchange Portal We are looking for a reliable partner for small money about 3-4 pages created for us, with some nice graphics where it is possible to sell bitcoins in real time 5-10 percent below current price and buy 5-10 percent above current price, the function of a sell and buy button with the current selling and buying course of Bitcoin. In addition, an automated Zahlunsgabwicklung with sending the bitcoins... 4 PHP, Nettsidedesign, Programvarearkitektur, HTML, Bitcoin Feb 15, 2018 Feb 15, 20183d 20t $24
Decentralized Domain Names Service expert is needed I want to create an own coin with Decentralized Domain Names Service, Decentralized SSL Service, Decentralized Cloud...do not bid if you know nothing about it 25 PHP, Nettsidedesign, Grafisk design, DNS, Bitcoin Feb 15, 2018 Feb 15, 20183d 19t $7619
hard-forked bitcoin core code 1.hard-forked bitcoin core code / or on X11 algorithem [url fjernet, logg inn for å se] program [url fjernet, logg inn for å se] of consensus [url fjernet, logg inn for å se] protection of replay attack [url fjernet, logg inn for å se] deployment and capability of node hosting [url fjernet, logg inn for å se] pool [url fjernet, logg inn for å s... 22 Bitcoin, Blockchain, Web Development Feb 15, 2018 Feb 15, 20183d 16t $419
ICO marketing partner VR Games ICO [url fjernet, logg inn for å se] in search for marketing partner. Pls inquire only experienced ICO marketers with decent portfolio. Up to 10% of ICO gross. 11 Bitcoin, Ethereum Feb 15, 2018 Feb 15, 20183d 12t $396
VR Games ICO ANN at Botcointalk.org Topicstarter needed for VR Games ICO ANN at [url fjernet, logg inn for å se] [url fjernet, logg inn for å se] We like [url fjernet, logg inn for å se] as a sample of good work. Pls PM with your best Bitcointalk ICO ANN topicstarter (done by you) 5 Bitcoin, Ethereum Feb 14, 2018 Feb 14, 20183d 11t $102
Cryptocurrency Automatic Exchange.. Cryptocurrency Automatic Exchanger.. The idea is processing e-money exchange by sending and receiving e-money in exchange of several payment methods , All transactions should be confirmed using API or the Blockchain for each e-bank and also could be processing manually if the administrator would like to. User Levels Agent Groups Discount levels Available currencies Available E-Banks Ava... 25 PHP, OSCommerce, MySQL, Bitcoin Feb 14, 2018 Feb 14, 20183d 8t $2359
Blockchain Ethereum smart contract solution I wish to build a Blockchain and Ethereum smart contract system Prototype. Looking for expert who have experience building similar solution 30 Programvarearkitektur, Bitcoin, Blockchain, Ethereum Feb 14, 2018 Feb 14, 20183d 1t $5083
bitcoin exchange I need a bitcoin exchange website 23 PHP, Nettsidedesign, eHandel, HTML, Bitcoin Feb 14, 2018 Feb 14, 20182d 22t $2186
Blockchain community manager Im looking for a community manager for a blockchain project. The person should be competent enough to talk to other programmers. So a understanding of programming/technical background is a big plus. Ofcourse need to understand blockchain and cryptocurrency concepts. The work mostly involves doing writeups/being activley involved in daily discussions for a blockchain project. When you respond pleas... 9 Programvarearkitektur, C++ Programmering, Bitcoin, Blockchain, Ethereum Feb 14, 2018 Feb 14, 20182d 21t $4
Cryptocurrency Day Trading Expert New company seeks experience day traders. We will give you an account to trade with. You must have experience and show us your account so we can see how good you have been trading Hourly pay plus bonus on successful trades. If you want to be a manager tell us what you have to bring to the table. If you have good insights share them you are most likely to be hired before others. 4 PHP, C-programmering, Metatrader, Matematikk, Bitcoin Feb 14, 2018 Feb 14, 20182d 20t $105
Cryptocurrency Exchange Website (ERC20 Token, minable coins like BTC, LTC and others) ERC20 Token and minable coins like BTC, LTC and others Reference: [url fjernet, logg inn for å se] Also be able to add and remove erc20 token. Implementation like IP stuff, when a user long in with different IP, google 2fa etc Questions:-- 1. How do you plan to secured investors fund? 2. How can we plan to safe the website from hackers? 3. how to add coin to pair and trade in... 21 Programvarearkitektur, Kryptografi, Bitcoin, Web Development Feb 14, 2018 Feb 14, 20182d 19t $1479
SAAS based Bitcoin API I need SAAS based bitcoin API. Please reply only if you have worked on similar project. Reply with demo. If you have not worked on similar project, please do not reply. I want launch 'SAAS based Bitcoin API'. so, people should be able to register on my website, get their api keys and use api in their project. registration will be free and will get few free transactions and to upgrad... 11 PHP, Javascript, Programvarearkitektur, MySQL, Bitcoin Feb 14, 2018 Feb 14, 20182d 19t $601
fast hard ICO marketing required I have just launched ICO and need a guru to create huge boom and bring investors. I need to know your plan with bid and need to start instantly 12 Sosial nettverksbygging, Markedsføring av Facebook, Bitcoin, Blockchain, Ethereum Feb 14, 2018 Feb 14, 20182d 18t $120
Eth ICO Crowdsale site Hello Candidate, I would highly appreciate that the candidate has a solid background about cryptocurrency and BlockChain. The project is about developing an ICO with ER20 Etheruem platform. So the project must include: 1- Ethereum/Waves token 2- ICO software The features that the ICO must include are as the below : • Manage your Token sale easily with our ICO setup • Un... 41 PHP, Grafisk design, Bitcoin, Blockchain, Ethereum Feb 14, 2018 Feb 14, 20182d 17t $2352
Use the API of BlockCypher for a new currency via ETH We have created a new currency, and we would like to do a POC for creating a wallet and doing transactions in this currency, from a mobile/web application. You can use the API of BlockCypher, or suggest another solution: [url fjernet, logg inn for å se] Good luck! 11 Bitcoin, Blockchain, Ethereum Feb 14, 2018 Feb 14, 20182d 15t $660
PHP, Javascript, Nettsidedesign, HTML, Bitcoin Feb 14, 2018 Feb 14, 20182d 11t
Project for Appsturn Software Solutions L. Hi Appsturn Software Solutions L., I noticed your profile and would like to offer you my project. We can discuss any details over chat. I need to make a security audit for a smart contract on ETH. are you available? we can agree on the price. 2 PHP, Bitcoin, Angular.js, App Developer, Blockchain Feb 14, 2018 Feb 14, 20185d 11t $275
Blockchain Developer I would like to hire your company to develop a crypto coin for my website at [url fjernet, logg inn for å se] The coin will be used to pay for monthly subscriptions on my website by my members instead of using PayPal. I will need (1) blockchain, (2) exchange and (3) wallet. The coin will be called PAYWIT and it can be purchased on my website exchange by using Bitcoins or Ether. R... 13 PHP, Nettsidedesign, Programvarearkitektur, HTML, Bitcoin Feb 13, 2018 Feb 13, 20182d 10t $17303
Tiny wallet. PLEASE, DON'T WASTE YOUR TIME - AND MINE! ONLY BID IF YOU *PERSONALLY* ARE: 1) The actual coder of my project (see description below); 2) Ready to work, on a per hour basis with me (I am a beginner programmer) - in real-time (via Teamviewer and Skype); 3) *Very knowledgeable* about how bitcoin and ethereum wallets work; 4) *Proficient* with bitcoin and ethereum popular *public* ... 7 Bitcoin, Blockchain, Ethereum Feb 13, 2018 Feb 13, 20182d 10t $12
Traceless P2P payment BLOCKCHAIN Build the entire [secured trackless payment blockchain] with ICO, own cryptocurrency, and own wallet. Budget is USD70,000 and dateline is 4 months. 38 Java, Kryptografi, C++ Programmering, Bitcoin, Blockchain Feb 13, 2018 Feb 13, 20182d 8t $71543
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