Bitcoin Munkák és versenyek

You can earn money at by using your bitcoin skills.

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

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, 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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Projekt/Verseny Leírás Árajánlat/Pályamű Készségek Kezdete Vége Ára (EUR)
Sell Blockchain messenger need to sell my project or create/join to/ a team which have similar goals. i have a first full Blockchain Messenger. have core. mobile app for android. web. it is contains two parts: 1-st - only wallet for alt-coin, 2-nd - messenger according core and blockchain. 6 Internetes marketing, Marketing, Bitcoin, Blockchain Feb 21, 2018 Ma6n 23ó €3415
Bitcoin Core I have a large CSV file with strings, each one is a Bitcoin address. For each of these addresses, I need to know its final balance. Using an external API would be problematic, since its calls are limited, and my file has millions of strings. Therefore, it would be best to download the blockchain and query it locally. You can assume that Bitcoin Core is already installed. Eventually, I need to kno... 11 PHP, C programozás, Szoftverarchitektúra, MySQL, Bitcoin Feb 21, 2018 Ma6n 22ó €141
small btc wallet PLEASE, 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 wallets work (since I am); 4) *Proficient* with bitcoin *public* libraries (bitcoin core, bitcoinj...); 5) Ready to *first* ... 4 Bitcoin Feb 20, 2018 Ma6n 21ó €9
Creating an altcoin. - open to bidding I would like a cryptocurrency alt-coin built. I would like it to be pre-mined. I would like it to be connected to my website with a place to get free coins which will be given out in my ico. I would like a wallet on the website., I would also like something setup to allow mining for the coin. A bitcoin clone or Ethereum clone would work well. 9 Rendszergazda, Linux, MySQL, VPS, Bitcoin Feb 20, 2018 Ma6n 19ó €578
Crypto currancey Etherium AlT coins Java Browser Online Miner [url eltávolítva, lépjen be a megtekintéshez] as reference : Our Cloud mining system will allow anyone to set up a miner with ease from our platform/website app You must understand Blockchain / Java / Mining set up requirements . Agreement Based on Milestones and Proof of skill Task One: Set up server cloud miner code to mine Etherium from our server using C... 9 PHP, Java, Javascript, Bitcoin, Blockchain Feb 20, 2018 Ma6n 16ó €16
Design & Develop an ICO website using Wordpress Hi, Looking for capable designer & development team to design & develop an ICO website using wordpress. Our favored ICO websites are [url eltávolítva, lépjen be a megtekintéshez] [url eltávolítva, lépjen be a megtekintéshez] [url eltávolítva, lépjen be a megtekintéshez] Please list your previous we... 28 WordPress, HTML, Bitcoin, Blockchain, Ethereum Feb 20, 2018 Ma6n 9ó €43
backend bot for crypto website I need a backend bot built for my website, user login, balance, btc withdrawal,escrow. Bot must create accounts on a different website with info users submit on my website Bot must do email verification Bot must calculate crypto market price Bot must release escrow Bot must exchange crypto currency from exchange API when needed.. BTC -> XMR SYS<-BTC etc... Please send me a quest... 18 PHP, Python, MySQL, HTML, Bitcoin Feb 20, 2018 Ma6n 5ó €708
Cryptocurrency Exchange Website (Designing pages are ready) ERC20 Token and minable coins like BTC, LTC and others Reference: [url eltávolítva, lépjen be a megtekintéshez] Also be able to add and remove erc20 token. Implementation like IP stuff, when a user long in with different IP, google 2fa etc Please only bid if you can start and finish within 1 week or sooner. Payment i will create 30% after see some progres... 27 PHP, Javascript, Webdesign, Szoftverarchitektúra, Bitcoin Feb 20, 2018 Ma6n 5ó €873
Write a fundraising campaign I'm looking for someone who is expert in writing a fundraising campaign actually I want to raise money to start my new project, My project is for "Bitcoin trading" not like local bitcoin in this project my plan is to trade using customers bitcoin like share market and will credit profit to customers account if customers want to withdraw his full bitcoin wany time then he can withdra... 6 Marketing, Piackutatás, Bitcoin, Kreatív Írás, Üzleti Írás Feb 20, 2018 Ma6n 4ó €336
Animation for Crypto project Onyx is an erc20 token. Onyx is built for service... 1. To facilitate payment of goods and services on Kwakoo Marketplace. 2) To be the base trading currency on Kwakoo Exchange 3) To be spent on POS and withdraw from ATM through a prepaid card. 1 3D animáció, Adobe Flash, Animáció, Bitcoin, Grafikai tervezés Feb 20, 2018 Ma6n 4ó €162
complete bitcoin exchange with top 10 currencies Details specs will be provided in separate communication I need completed bitcoin trading exchange with top 10 currencies. It needs to have complete user registeration, id verification, exchange walltet, send receive coins and most important unbreakable security. 52 HTML, node.js, Bitcoin, Angular.js, Web Development Feb 20, 2018 Ma6n 2ó €3595
Smart Contract Expert Need a smart contract expert to rewrite a smart contract. I want to implement a lock of tokens in the smart contract. Which means the people who bought tokens will see the tokens in their mew but wont be able to move it till a certain date. This date should be changeable by the owner. Some examples are remme, car vertical. 4 Bitcoin, Blockchain, Ethereum Feb 20, 2018 Feb 20, 20185n 23ó €459
Neoscrypt Coin with Masternodes I I require a crypto currency coded with masternodes using Neoscrypt algorithm. Coin will be based off a pre-existing coin so just need to change the wallet design, and other simple values(name,supply,premine, reward per block). Then recompile wallet for linux/windows. Only bid if you know how to do this (meaning not your first time trying) 5 Bitcoin, Ethereum Feb 20, 2018 Feb 20, 20185n 22ó €335
Cold Storage Wallets (BTC, ETH, NEO, NEM, LTC, XMR, DASH) - No Asian! Looking for someone with experience in Cold Storage Wallets, creating private keys offline. We would prefer someone with experience handling all wallets mentioned in the title but open to people with experience with just some. We are collecting funds for an ICO, and need secure offline wallets. All other questions or concerns from the applicant can be asked during interview phase. 11 PHP, Mérnöki munka, Szoftverarchitektúra, MySQL, Bitcoin Feb 19, 2018 Feb 19, 20185n 20ó €448
Looking for an experienced individual to create an ICO website. Must have an relevant experience and show previous work Platform will need to as a minimum: * Create Bitcoin and Ethereum Based Wallets using node method * Stagger ICO Sales * Full Back End Admin Further information will be provided to the right candidate, as for turnaround time its going to be 14 days or less. 16 Bitcoin, Laravel, Tervezés, Blockchain, Ethereum Feb 19, 2018 Feb 19, 20185n 18ó €645
Need a test software to simulate SHA 256 cryptocurrency Hash Rate Hi everyone, We are launching a Cryptocurrency SHA 256 Mining Pool website and system and we need to run some test to get the proper hash rate(per miner received), in other word we just want to test the receiving the hash rate that the mining software is sending, we believe it send only numbers of their speed which is what we need to simulate, It is like a simulator to run test speed to mak... 5 Linux, Szoftverarchitektúra, Bitcoin Feb 19, 2018 Feb 19, 20185n 15ó €408
ASIC Bitcoin Design, Research, Development We have budget to make ASIC. Let me know how to build and production ASIC. we want to know how to make bitcoin ASIC device. we have budget for making ASIC product. we also Want to know EMS company to publish ASIC 7 C programozás, Bitcoin, Ethereum Feb 19, 2018 Feb 19, 20185n 9ó €195308
Create a cryptocurrency We are looking to create a new cryptocurrency and need an experienced developer that can develop and update our coin. This should be very straightforward for someone with experience in C hence the size of the project. This project is nothing fancy, just taking the source code and changing the parameters to it. The winner will be given the new parameters after having a few initial discussio... 16 C programozás, C# programozás, C++ Programozás, Bitcoin Feb 19, 2018 Feb 19, 20185n 7ó €1007
Set Up Software for mining Ethereum I have a rig with 6 ASUS 580 motherboard and need to have it fully integrated with an Ethereum mining pool. 5 Bitcoin, Hálózati Adminisztráció, Webes Szolgáltatások, Ethereum Feb 19, 2018 Feb 19, 20185n 6ó €101
Fork a Ripple wallet depository We are looking for freelancers who can help us fork a ripple wallet depository and improve the end user experience. Tasks to be accomplished: - Fork a Ripple wallet depository - Improve the End User Experience. The ideal partner will be very familiar with Ripple network. Please show me some of your previous made websites. More things will be discussed in the chat. Only offer if... 3 PHP, Webdesign, Szoftverarchitektúra, Bitcoin, Blockchain Feb 19, 2018 Feb 19, 20185n 4ó €5716
Write a Whitepaper for Cryptocurrency ICO project Dear Sir, Madam, I am looking for a professional and experienced Whitepaper for a new ICO. The freelancer should have an MBA. 15Pages+ with very good market research, including references to trade and economics supported with Charts. This is for a very specific market. I will give you information about the product, and then the writer should adapt it to the WhitePaper. No Plagiarism ... 59 Műszaki írás, eCommerce, Bitcoin, Blockchain, Ethereum Feb 19, 2018 Feb 19, 20185n 4ó €743
Wlox Exchange - API Integration I will send you the requirement 24 PHP, Javascript, node.js, Bitcoin, Blockchain Feb 19, 2018 Feb 19, 20185n €109
need bitcoin node setup I need your help in setting up bitcoin node. Please bid only if you can do it. Please bid only if you have done it. Please show me working node on teamviewer so that I will know that you have done it. I need node setup in 1 day 13 Bitcoin Feb 18, 2018 Feb 18, 20184n 10ó €371
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 • ... 26 Bitcoin, Mesterséges intelligencia, Blockchain, Ethereum Feb 18, 2018 Feb 18, 20184n 6ó €7882
Build Cryptocurrency Exchange Platform We are looking for freelancers who can build us a Cryptocurrency exchange like [url eltávolítva, lépjen be a megtekintéshez] 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... 8 PHP, Javascript, Webdesign, HTML, Bitcoin Feb 18, 2018 Feb 18, 20184n 6ó €4226
ICO web site design with kyc and affiliate need great modern looking ICO website in same style as [url eltávolítva, lépjen be a megtekintéshez] 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. 16 Webdesign, HTML, Bitcoin, Blockchain, Ethereum Feb 18, 2018 Feb 18, 20184n 3ó €503
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. 8 PHP, C programozás, Python, Szoftverarchitektúra, Bitcoin Feb 18, 2018 Feb 18, 20183n 23ó €24
need correction in signup and some more work hi, our website is [url eltávolítva, lépjen be a megtekintéshez] 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 tw... 2 PHP, Javascript, MySQL, HTML, Bitcoin Feb 17, 2018 Feb 17, 20183n 19ó €19
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 eltávolítva, lépjen be a megtekintéshe... 23 PHP, Webdesign, Bitcoin, Blockchain Feb 17, 2018 Feb 17, 20183n 12ó €2366
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... 17 Bitcoin Feb 17, 2018 Feb 17, 20183n 7ó €943
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 17 C programozás, Kriptográfia, Bitcoin, Blockchain, Ethereum Feb 17, 2018 Feb 17, 20183n 6ó €2534
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 eltávolítva, lépjen be a megtekintéshez] should be capable of premine option percentage for the genesis block for the [url eltávolítva, lépjen be a megtekintéshez] project includes. 1. Creation of new cryp... 17 PHP, Java, Szoftverarchitektúra, C++ Programozás, Bitcoin Feb 17, 2018 Feb 17, 20183n 5ó €924
Need to build a website similar to CoinMarketCap Looking for someone that can build an website similar to [url eltávolítva, lépjen be a megtekintéshez] with a fully functional Altcoin chart. 37 PHP, Codeigniter, MySQL, HTML, Bitcoin Feb 16, 2018 Feb 16, 20182n 18ó €992
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, Webdesign, Szoftverarchitektúra, MySQL, Bitcoin Feb 16, 2018 Feb 16, 20182n 18ó €21
*** 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, Jogi kutatás, Bitcoin, Blockchain, Ethereum Feb 16, 2018 Feb 16, 20182n 16ó €2636
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. 25 Bitcoin, Ethereum Feb 16, 2018 Feb 16, 20182n 15ó €587
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... 14 PHP, WordPress, HTML, Bitcoin, API Feb 16, 2018 Feb 16, 20182n 12ó €162
Cryptocurrency Lending Plattform I need a Lending Platform incl. ICO and QT Wallet for the POS and an internal exchange. Like this: [url eltávolítva, lépjen be a megtekintéshez] I will pay for your work and additional 3% of the ICO in the best case about 250k. 9 PHP, Bitcoin, Tervezés, Blockchain, Web Development Feb 16, 2018 Feb 16, 20182n 11ó €129473
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++ Programozás, Bitcoin, Szoftver fejlesztés, Blockchain Feb 16, 2018 Feb 16, 20182n 9ó €3632
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... 41 PHP, Webdesign, Grafikai tervezés, Szoftverarchitektúra, Bitcoin Feb 16, 2018 Feb 16, 20182n 7ó €2265
Linux Mining Software Looking for developer versed in ubuntu/linux to alter, change or develop a mining currency software. 10 Python, Linux, Bányamérnök, Bitcoin, Ubuntu Feb 16, 2018 Feb 16, 20182n 7ó €302
crypto exchange we need a crypto exchange like binance or poloniex bitfinex. 23 C programozás, Informatikai biztonság, Szoftverarchitektúra, Kriptográfia, Bitcoin Feb 16, 2018 Feb 16, 20182n 6ó €3918
Bounty campaign for VR Games ICO We need to create, launch and run bounty campaign for VR Games ICO [url eltávolítva, lépjen be a megtekintéshez] Pls reply with your relevant expertise. 10% of bounty budget to be rewarded to campaign manager 13 Bitcoin, Blockchain, Ethereum Feb 16, 2018 Feb 16, 20181n 22ó €751
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, 20181n 22ó €2236
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 programozás, Java, Android, Bitcoin, Blockchain Feb 15, 2018 Feb 15, 20181n 19ó €1364
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, Kriptográfia, Bitcoin, Blockchain Feb 15, 2018 Feb 15, 20181n 17ó €2462
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, Szoftverarchitektúra, Matematika, Bitcoin Feb 15, 2018 Feb 15, 20181n 12ó €31
Looking for Senior c# and CryptoCurrency knowledge Looking for someone with knowledge about Crypto Currencies and Crypto mining 23 C programozás, C# programozás, Szoftverarchitektúra, Bitcoin Feb 15, 2018 Feb 15, 20181n 10ó €25
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 17 Javascript, Bitcoin, Kódolás, Blockchain, Ethereum Feb 15, 2018 Feb 15, 20181n 9ó €1035
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, Webdesign, Szoftverarchitektúra, HTML, Bitcoin Feb 15, 2018 Feb 15, 20181n 7ó €19
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