Bitcoin Munkák és versenyek

You can earn money at Freelancer.com 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 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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Projekt/Verseny Leírás Árajánlat/Pályamű Készségek Kezdete Vége Ára (EUR)
Need Help with MySQL Optimization and MPOS (Mining Portal Open Source) Configuration We are running an MPOS pool installed on Ubuntu 14.04 LTS with MySQL 5.5.60 and PHP 5.5.9 with Memcache installed and enabled. Our ideal functionality is to use Memcache to handle requests for user hashrates and user and round shares in order to keep the frontend fast and to relieve query load to our MySQL database. What's happening instead is requests for such information are tying up our My... 7 PHP, MySQL, Bitcoin, Blockchain May 26, 2018 Ma6n 15ó €149
Need a blockchain development expert to develop a decentralised chatting network I'm looking for a blockchain development expert, who can develop a decentralised chatting network. Please quote your price, and time duration. 5 Bitcoin, Blockchain, Ethereum May 26, 2018 Ma6n 4ó €2044
Generic dash cryptocurrency fork teaching I need a blockchain developer-teacher to provide tools and guides, and teach my programmer "how to blockchain": How to change generation algorithms (POS/POW[X11/Lyra/Xevan]/POW+POS-HYBRID) with Genesis block creation (POW) Difficulty adjustments How to change network parameters such as: Block generation time, Block weight Coin emission and distribution between MN/MINER/BUDGET BlockCount... 5 Bitcoin, Blockchain May 26, 2018 Ma6n 3ó €571
Change Genesis Block I'm looking for someone who can create a new genesis block. 0 Bitcoin, Blockchain May 26, 2018 Ma6n 2ó -
Bitcoin Talk Announcement Creation We need a person that knows about [login to view URL] and Reddit to create an announcement for our token sale. 7 PHP, Javascript, Közösségi Háló, Szoftverarchitektúra, Bitcoin May 26, 2018 Ma6n 2ó €117
My Ether Wallet script changed to include Erc20 tokens exchanged with ethereum source code: [login to view URL] site: [login to view URL] I need this script changed to included exchange erc20 tokens with ethereum. Wallet will work exactly the same as my ether wallet script it will just have the function to add tokens (already has this function) and you can exchange with ethereum. this will work in the way as a normal decentralized exchange except all will be done at the sa... 6 PHP, Javascript, Bitcoin, Blockchain, Ethereum May 26, 2018 Ma6n 1ó €102
implemente coinpayments.net api implemente [login to view URL] api in my website for accepting all cryptocurency in my website My website in php code 1 PHP, Bitcoin, Payment Gateway Integration, API May 26, 2018 Ma6n 1ó €23
Simple crypto exchange Like Localbitcoin.com Hello everybody i am looking to launch website like [login to view URL] with same feature people from different countries can exchange their local currency to bitcoins and Eth. The site allows users to post advertisements where they state exchange rate and payment methods for buying or selling bitcoins. You reply to these advertisements and agree to meet the person to buy bitcoins with cash, or ... 18 PHP, Webdesign, Szoftverarchitektúra, HTML, Bitcoin May 26, 2018 Ma6n €942
i need Bitshares Developer i m looking for only Bitshares core Developer. don;'t apply if you are not expert in Bitshares core, otherwise i will Report your bid. 2 Python, SQL, C++ Programozás, Bitcoin, Blockchain May 26, 2018 May 26, 20185n 21ó €547
Need 0.013BTC , they are exactly 100USD . I`ll pay here 200$ upfront for them . If you have the needed amount just let me know so we can discouse for more ! thanks 2 Bitcoin, Blockchain, Internetes marketing, Logótervezés, Photoshop May 26, 2018 May 26, 20181n 20ó €137
Bitcoin exchange with top 10 coins Do not bid if you have not delivered a crypto exchange before Payments will be done on milestone delivery , NO ADVANCE PAYMENT You need to show that demo exchange have been delivered by you. Only bid the amount you are prepared to accept Read specs before bidding. Thanks 20 PHP, Linux, Bitcoin, Blockchain May 25, 2018 May 25, 20185n 11ó €1325
Cryptocurrency Exchange 10 coins 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 . 66 PHP, Linux, node.js, Bitcoin, Blockchain May 25, 2018 May 25, 20185n 9ó €3852
Create CryptoNight Heavy Coin (like Loki, Monero or Sumokoin) CryptoNote I am looking for an experienced developer to create a new Cryptonight heavy coin that is ASIC resistant. I will also need a Windows wallet created to support the new coin. I don't actually mind if this is a fork on Sumokoin as that is a great project and will be a good base for the start on this new coin. I will also need this coin to be compatible with cryptonote-nodejs-pool. Which is th... 11 Bitcoin, Blockchain, Ethereum May 25, 2018 May 25, 20185n 2ó €1846
TradingDot 0,5 USD per every single idea (>250characters) on [login to view URL]! If you're interested simple apply to us. Before contact, read this description: Are you Forex freak?? We need someone, who can make some positive mess on the [login to view URL] by adding posts and short ideas about FOREX CRYPTO AND STOCKS mainly in English language. For EVERY post and idea additionally you will be... 1 Pénzügyi kutatás, Article Writing, Angol (UK), Bitcoin, Ethereum May 25, 2018 May 25, 20185n €133
Blockchain StartUp ( ethereum based) recruting experts Hello Freelancers, I am looking for blockchain experts on ethereum based projects. I don`t want to tell you too much here on the public Project post. But I am looking for someone who wants to change the world and want to be a part from scratch of a new company. I do prefer peoples from the Ukraine and Russia because I know there work ethic and their mentality. Pls make sure to answer me These Qu... 13 PHP, HTML, Bitcoin, Blockchain, Ethereum May 24, 2018 May 24, 20184n 10ó €45
Metamask API intergration for users back end we are looking for someone who can help finish the metamask integration on our backend so people can buy our ERC20 tokens and they go to their meta mask wallet that they either import or create from within our back end. 15 PHP, Bitcoin, Szoftver fejlesztés, Blockchain, Ethereum May 24, 2018 May 24, 20183n 20ó €426
Add private key support to an altcoin web wallet I have an altcoin web wallet and I need someone to add the ability for a user to export private keys. You'll be given a small portion of code where it should be added. It seems very simple to do with the dumpprivkey command. 5 PHP, MySQL, HTML, Bitcoin May 23, 2018 May 23, 20183n 13ó €195
Cryptocurrency wallet hi! I am looking for someone to build my own Crypto Wallet. It will be a multi cryptocurrency wallet, and one can send, receive and store currency in all the cryptocurrencies. Wondering if you can help? If yes, Can you send some links to some work previously done by you? how much would this cost me? And how long would it take? 29 PHP, C programozás, Webdesign, Szoftverarchitektúra, Bitcoin May 23, 2018 May 23, 20183n 13ó €820
Build a Investment Website I want a website with latest graphics which also have a member login, admin login, and super admin login. I want a cryptocurrency payment gateway and automatic withdrawal system to customers account. 11 PHP, Kriptográfia, Bitcoin, Blockchain, Ethereum May 23, 2018 May 23, 20183n 7ó €407
Create a complete video course (10+ hours) related to cryptocurrency trading / investment Hi there, We are looking for someone capable of making a complete video course related to crypto trading (10+ hours). Skills needed: - Previous experience creating videos (record screen) - Previous experience with power point or similars - Previous experience teaching - Previous experience trading (stocks, forex and / or cryptos) - Knowledge about cryptocurrencies - Knowledge about technic... 12 Powerpoint, Metatrader, Kriptográfia, Bitcoin, Videoszerkesztés May 23, 2018 May 23, 20183n 6ó €3100
Java Tutor Wanted For a Few Hours Tasks: 1) You will help me by shared screen (team viewer) to compile [login to view URL] and get it to connect to the Dogecoin network. Your job is to sit there and watch me and give me instructions on completing the build. 2) Modify the merkle root, genesis hash and checkpoint files to connect to a fork of the doge network. 2 Java, Bitcoin, Netbeans May 23, 2018 May 23, 20183n 4ó €18
Blockchain Developer urgent I want to make a decentralize exchange using a open source blockchain after that i want to do many custom thing there, only experience guy bid here, i will request your past working experience in this filed. 24 Szoftverarchitektúra, C++ Programozás, Bitcoin, Blockchain May 23, 2018 May 23, 20183n 2ó €1311
I am looking for Blockchain Developer Hi I want someone to integrate Blockchain(Bitcoin or Altcoins) payments in my application. Please check the attached Desktop Application carefully and if you can make it please make your bid. Thanks. 29 PHP, Javascript, Android, Szoftverarchitektúra, Bitcoin May 23, 2018 May 23, 20183n 2ó €721
Develop a Crypto Exchange and Trading Portal (1) A Trading & Exchange Platform for Buy/Sell/Exchange of Crypto Currencies. To be developed on Larval platform. (2) 5 Coin integration to begin with- BTC, ETH, LTC, BCH and Ripple (3) E-Wallet- Crypto & Fiat (4) Fiat Deposit & Withdrawal integration. Means Exchange/Trade between Crypto to Crypto as well as Fiat to Crypto. Fiat- 1 Currency. (5) UI/UX of the site has to be very Modern... 27 Webdesign, Grafikai tervezés, Szoftverarchitektúra, Bitcoin, Blockchain May 22, 2018 May 22, 20182n 14ó €5841
online gamble site I need online casino/gamble/dice site with bitcoin payments + need integrate one more cryptocoin 26 PHP, Webdesign, Grafikai tervezés, HTML, Bitcoin May 22, 2018 May 22, 20182n 8ó €2050
Are you a blockchain technology and cryptocurrencies enthusiast? Looking for a job opportunity? Do you want to integrate our project? The blockchain is a wonderful thing. It’s only been around for ten years, and it’s already taking the world economy and shaking it by the roots. As it turns out, the economy isn’t the only thing the blockchain is set to transform. Cryptocurrency networks are being utilized on a variety of different fronts to do everything from saving the planet to choosing the nation’s nex... 21 PHP, C++ Programozás, Bitcoin, Blockchain, Ethereum May 22, 2018 May 22, 20182n 8ó €11
Add a feature to an altcoin project 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 information... 12 C programozás, Python, C++ Programozás, Bitcoin, Blockchain May 22, 2018 May 22, 20182n 8ó €689
Fix a Bitcoin Fork - All the specs for the coin are done. We just need someone who knows how to add the DNS seeds and make the fork to start mining (and visible to other peers). Please good budgets! 8 C programozás, UNIX, Bitcoin, Blockchain, Ethereum May 22, 2018 May 22, 20182n 6ó €375
Blockchain project assistance We are currently building a crypto exchange and we require assistance to create user wallets for ERC20 supported wallets with all transactions being linked to the eth network. We also require assistance to send transactions after trade success. 22 PHP, Bitcoin, Blockchain, Ethereum May 22, 2018 May 22, 20182n 6ó €874
Help With Java / Maven / BitcoinJ Cloning bitcoinJ for altcoin, need assistance via shared screen - paid hourly. 10 Java, Bitcoin May 22, 2018 May 22, 20182n 4ó €18
Watcher of Crypto wallets local tool which can verify balance and transactions on cryptowallets: BTC, BCH, LTC, ETH, DAS, XRP - must communicate via api - return balance + transactions - bulk requests - dont want to use 3rd party service - ready to use open-source solutions - example insight for btc etc... - need bash script which will autoinstall the needed libraries, dependencies, clone git, settings etc on fresh ubuntu ... 9 Bitcoin, Blockchain, Ethereum May 22, 2018 May 22, 20182n 4ó €277
Blockchain/Altcoin Developer Needed. Must be strong C++ Developer. We are looking to hire for our powerful cryptocurrency project which is now live! See our project at [login to view URL] We already have a team of 4 developers, we are looking to add top-notch developers to add man power to our team. We are specifically looking for those with STRONG C++ skills, and ability to understand a project and cryptocurrency programming quickly and effectively, to be... 36 Javascript, Linux, C++ Programozás, Bitcoin, Szoftver fejlesztés May 22, 2018 May 22, 20182n 1ó €33
Install and integrate Top 15 Crypto Currency Daemons using PHP Only the developers who already executed similar work successfully can contact me and work on this project. Must be finished within 1 day. 7 Kriptográfia, Bitcoin, Blockchain May 22, 2018 May 22, 20181n 20ó €1164
Web development -- 2 I need a new website. I need you to design and build my online store. Cloud mining website with all panels... 18 PHP, Webdesign, Grafikai tervezés, Kriptográfia, Bitcoin May 22, 2018 May 22, 20181n 20ó €1644
Project for Loai N. Hi Loai N., I noticed your profile and would like to offer you my project. We can discuss any details over chat. 1 PHP, Javascript, Webdesign, HTML, , Bitcoin May 22, 2018 May 22, 20184n 19ó €643
React native bitcoin wallet app I am looking for a professional mobile developer/team to design and create a bitcoin mobile application wallet similar to [login to view URL] wallet. Github link ([login to view URL]) and iOS link ([login to view URL]). This is a long term position and I am looking for a very smart developer/team who can take an idea and turn it into a complete app with high quality and professionalism. I will be ... 55 Mobile App Development, iPhone, Android, Bitcoin, Blockchain May 22, 2018 May 22, 20181n 18ó €1393
Promote my Medium article and upvote the link I posted I wrote a Medium article yesterday and want to advertise and market it so that it starts to gain traction. I'll provide you with the link to the Medium article, the link to my Reddit post, and the link to my twitter post for that same article. Please let me know how you can help promote this article of mine. Thank you! 8 Internetes marketing, Marketing, Bitcoin, Közösségi Média Marketing, Blockchain May 22, 2018 May 22, 20181n 17ó €32
8 hrs/day job, knowhow in online marketing. Job paid hourly with possibility for high bonus. We are looking for a promoter / admin for our Cryptocurrency Trading Chat. You should have expierence with Cryptocurrency Trading, or at least know the basics of Cryptocurrencies. Also Skills with Facebook Ads, or Google Ads, or any way of Marketing online are wished. For this job we search someone who can work 8 hours a day. The salary would be paid in hourly ratios, but you also have the oppurt... 21 PHP, Internetes marketing, Facebook Marketing, Bitcoin, Közösségi Média Marketing May 21, 2018 May 21, 20181n 12ó €5
Looking for someone with know how in Cryptocurrencies and Facebook Ads as Promoter/Admin We are looking for a promoter / admin for our Cryptocurrency Trading Chat. You should have expierence with Cryptocurrency Trading, or at least know the basics of Cryptocurrencies. Also Skills with Facebook Ads, or Google Ads, or any way of Marketing online are wished. For this job we search someone who can work 8 hours a day. The salary would be paid in hourly ratios, but you also have the oppurt... 10 PHP, Internetes marketing, Szoftverarchitektúra, Bitcoin, R Programnyelv May 21, 2018 May 21, 20181n 11ó €5
Add feature for bitcoin fork (Altcoin) 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 information... 9 C programozás, Szoftverarchitektúra, C++ Programozás, Bitcoin, Blockchain May 21, 2018 May 21, 20181n 10ó €264
Install Draglet Exchange Software into an AWS Debian 8 Instance We need some one to install and configure the Draglet criptocurreny exchange software into an AWS Debian 8 Instance and create a mini Howto, such a way we can reproduce the instalation process into another instance. A previous experience or knowledge about cryptocurrencies is very desirable. Please, don't bid using "standard texts" and without taking at least a look into the docum... 18 Rendszergazda, Linux, Amazon Web Services, Bitcoin, Ubuntu May 21, 2018 May 21, 20181n 8ó €468
Block-chain Programmer Looking for a Programmer for an indie Block-chain Venture. Prior experience is preferred in e-commerce along with crypto-currency programming . 39 PHP, eCommerce, Bitcoin, Blockchain, Ethereum May 21, 2018 May 21, 20181n 4ó €1570
Looking for cryptocurrency exchange developer 1 Please bid seriously to this project if you have worked on exchange platform. I'm looking for experienced developer who can show me demo site similar with [login to view URL] Please check this site and drop message if you have worked on similar project. I'm ready to pay and get source code once I confirm. Thanks 38 PHP, Webdesign, HTML, Bitcoin, Web Development May 21, 2018 May 21, 20181n 2ó €1544
online baccarat & sport bet game online baccarat & sport bet game Bitcoin, Webmoney is Good when available. 26 PHP, Javascript, Szoftverarchitektúra, HTML, Bitcoin May 21, 2018 May 21, 201822ó 7p €811
Cryptocurrency Trading Platform script 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... 29 PHP, Webdesign, Szoftverarchitektúra, HTML, Bitcoin May 21, 2018 May 21, 201817ó 26p €3432
design website from a- z i want design website like [login to view URL] intergration bitgo...usd 200. or negoticiateble price. 41 WordPress, MySQL, Bitcoin, Blockchain, Ethereum May 21, 2018 May 21, 201816ó 20p €371
Launch an ico - Educational video platform Live and offline courses by experienced tutors 10 Bitcoin, Blockchain, Ethereum May 20, 2018 May 20, 201814ó 50p €1120
Cryptocurrency Exchange - BTC,ETH,DASH 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 proces... 38 PHP, Szoftverarchitektúra, PayPal API, HTML, Bitcoin May 20, 2018 May 20, 201811ó 42p €1324
Need Cryptocurrency Trading Platform 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 ... 29 PHP, Webdesign, Szoftverarchitektúra, HTML, Bitcoin May 20, 2018 May 20, 20187ó 2p €3415
Listing Our Coin In Crypto Exchange 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! 10 Algoritmus, Bitcoin, Blockchain May 20, 2018 May 20, 20185ó 34p €251
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