Bitcoin Công việc và cuộc thi

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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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Dự án/Cuộc thi Mô tả Lượt đặt giá/Bài dự thi Kĩ năng Bắt đầu Kết thúc Giá (VND)
ICO landing page Need a ICO landing page... Basically just a webpage but with btc and ethereum and also USD fiat payment attached and auto receipts to their email etc saying how much coin they will receive on the ico launch date etc... like a sales guarantee for the ico launch date and payment receipt etc this page before coin is launched indeed... so if you can make it done beautifully and its easy task ... 3 PHP, Thiết kế trang web, HTML, Thiết kế biểu tượng, Bitcoin Feb 22, 2018 Hôm nay6n 23g ₫4409091
develop a miner software & management software for ETH [url removed, login to view] software for ETH [url removed, login to view] mining speed at least 5% [url removed, login to view] the fee of claymore 5 Lập trình C++, Bitcoin, Blockchain, Ethereum Feb 22, 2018 Hôm nay6n 22g ₫14636364
Fork Cryptocurrency DASH or PIVX Need fork of dash/pivx with working wallet 0 Bitcoin, Ethereum Feb 22, 2018 Hôm nay6n 17g -
Create Crypto MasterNode fork Of DASH/PIVX Need a masternode fork of dash/pivx with working wallet. Possibility to join forces with the right developer to make this project together in reward for coin share once running. Must have knowledge of cryptocurrencies and worked on coins before. 3 Bitcoin, Coding, Ethereum Feb 22, 2018 Hôm nay6n 17g ₫17599605
Blockchain Developer I want to talk with Blockchain Developer fast. I have a lot of jobs and specs. If you are ok, show me your skills to me. Thanks 8 PHP, node.js, Bitcoin, Blockchain Feb 22, 2018 Hôm nay6n 16g ₫458940
Project for fb5a725134cc4fa Hi fb5a725134cc4fa, I noticed your profile and would like to offer you my project. We can discuss any details over chat. 1 Javascript, HTML5, , Bitcoin, Web Development Feb 22, 2018 Hôm nay9n 14g ₫3409091
Complete Crypto Currency Exchange Site **Please read before bidding** Looking to get my Crypto Currency Exchange site completed. I currently have a Crypto Currency on the Ether Block chain that is complete and ready for circulation. I have already had the Ethereum Wallet and node installed on my server, and wallet programmed into my exchange exchange to be able to Purchase with Credit card, and transfered to other users on my exchange site. The current sy... 15 PHP, Kiến trúc phần mềm, MySQL, Bitcoin, Ethereum Feb 22, 2018 Hôm nay6n 14g ₫46636364
Research Crypto software research Just make a project for research for cryptocurrency platform and give skills Blockchain, cryptocurrency, Bitcoin, ethereum 7 Mật mã, Bitcoin, Phát triển phần mềm, Blockchain, Ethereum Feb 22, 2018 Hôm nay6n 14g ₫3204545
ICO website accepting eth and creating a erc20 coin Hello Please have experience in creating ICO website. I am looking to accept eth. I am looking to create an erc20 token. 10 Bitcoin, Ethereum Feb 22, 2018 Hôm nay6n 13g ₫34840909
Animation for Onyx 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. 29 Adobe Flash, Thiết kế đồ họa, Sản xuất hoạt họa, 3D Animation, Bitcoin Feb 22, 2018 Hôm nay6n 12g ₫8772727
Want new Crypto Currency software like bitcoin please read first then bid make Want new Crypto Currency software like bitcoin fully functional only need software if have ready made make sure you already developed then make bid 4 PHP, Javascript, Kiến trúc phần mềm, MySQL, Bitcoin Feb 22, 2018 Hôm nay6n 10g ₫62930911
Create CryptoCurrency - Algo Neoscript or Skein Hi, We looking for an dev expert on crypto currency / blockchain domain, for create our own crypto currency coin. Our requirement is : Create an coin Hybrid PoW/PoS cryptocurrency based on Skein algorithm or Neoscrypt and feature hybrid PoW/PoS stage. Algo : NEOSCRYPT OR SKEIN Proof of Work / Proof of Stake / Masternodes Total supply: 69.000.000 More details will send to you per... 31 node.js, Bitcoin, Blockchain, Ethereum Feb 22, 2018 Hôm nay6n 4g ₫149409091
BLOCKCHAIN DEVELOPER NEEDED! BTC + ERC20 Web Wallets Hello I have an existing investing platform where people can use my erc20 token as utility token. I am searching for a Blockchain developer to realise the following: 1. one BTC web wallet for each user (deposit + withdrawal) 2. one ERC20 web wallet for each user (deposit + withdrawal) every user has to have his own wallet where he can deposit and withdrawal hes funds. The design and ... 11 Bitcoin, Blockchain Feb 22, 2018 Hôm nay6n 3g ₫8613636
Blockhain Parser Cryptocurrency Bitcoin BTC C# The application should be multi-threaded at least the initial Sync. The application must parse the **entire** bitcoin blockchain / chainstate db folder. The application needs to extract all BTC Addresses with Balance > 0 in the fastest possible way. These addresses has to fill a List1 ( BlockchainAdresses ) Could be stored in a database to update it later. A second List (MyBTCAdresses) nee... 15 Lập trình C, Big Data, Bitcoin, Programming, Blockchain Feb 22, 2018 Hôm nay6n 2g ₫23840909
Build Bitcoin online Wallet Build Bitcoin online Wallet In php .. 34 PHP, Mật mã, Bitcoin Feb 21, 2018 Feb 21, 20185n 23g ₫125192244
bitcoin address alert tracking Hi, I want to receive instant alerts via email and telegram when specific bitcoin address receive or send amounts valued 10 million USD or greater on blockchain.info. 21 PHP, Javascript, Kiến trúc phần mềm, MySQL, Bitcoin Feb 21, 2018 Feb 21, 20185n 22g ₫8874963
Cryptocurrency exchange platform I'm looking for talented designer and developer who has experienced in Cryptocurrency exchange platform. Here are referenced links : [url removed, login to view] robinhood has got very good Interface : [url removed, login to view] What's your best estimate? 26 PHP, Thiết kế trang web, Thiết kế đồ họa, Kiến trúc phần mềm, Bitcoin Feb 21, 2018 Feb 21, 20185n 22g ₫45295455
Create a Smart Contract on Ethereum for Token Distribution Greetings Freelancers! We are in search of an experienced freelancer that can create an ERC20 token contract on Ethereum. The contract will need to distribute our token to a list of Pre-determined Addresses including an Airdrop campaign, and include delayed future distribution requirements. We also need the contract to be properly included and verified on Ethereums explorer. Requirements: ... 3 PHP, Lập trình C++, Bitcoin, Programming, Ethereum Feb 21, 2018 Feb 21, 20185n 15g ₫190500000
Looking for mining experts Looking for someone with working knowledge of mining software and configuration of rigs. 4 Mật mã, Bitcoin Feb 21, 2018 Feb 21, 20185n 12g ₫3477273
Cryptocurrency mining software Similar to Minergate dot com mining software 9 Java, Màn hình Windows, Kiến trúc phần mềm, Bitcoin, Ethereum Feb 21, 2018 Feb 21, 20185n 12g ₫26000000
Referral programme need hi, we have website php based [url removed, login to view] we need rereferal programme. this site is for BitCoin ICO and I need 100% compatible referral programme. pls show us your demo and features so we will award you. thanks 10 PHP, Thiết kế trang web, Thiết kế đồ họa, HTML, Bitcoin Feb 21, 2018 Feb 21, 20185n 12g ₫3726604
Website Building I need a similar website. [url removed, login to view] I need with the live transaction chart. Download and run the site on offline. Bid if you can do it. 17 PHP, Javascript, Thiết kế trang web, HTML, Bitcoin Feb 21, 2018 Feb 21, 20185n 11g ₫3613636
Developing a coin with DAG algorytm chain Developing a full coin with DAG Algorytm , 1000.000.000 premined coins with 1 percent transactions fees. The coin include Creation, Block Explorer creation , Seednode , Wallet compilation and Coin revival services. Please fixe price only you can suggest any price you would I can't talk with for price . 7 Thuật toán, Statistics, Toán học, Bitcoin Feb 21, 2018 Feb 21, 20185n 11g ₫11613636
Intigrate diffrent Windows Form in our Windows Form (Cryptocurrencies,NiceHash,c#) Hey, we are looking for someone to intigrate nicehash legacy source code in our Windows Form (Nicehash Legacy itself is a windows form, but a bit old). We have attached a simplified version([url removed, login to view]) of our windows form and the link to nicehash legacy source code. (Below) We suggest you go true the mining process first to understand how it works. You can download it at li... 13 Lập trình C#, Kiến trúc phần mềm, Bitcoin Feb 21, 2018 Feb 21, 20185n 10g ₫15443367
add altcoins to cryptocurrency exchange platform we need team member for : User generates a new address for coin (IndexController->getDepositForm) User send an amount to this address (BitcoinPending command executes and adds pending transaction to database) Transactions gets confirmed and amount adds to user balance (BitcoinNewBlock executes and checks blocks for the transactions, once the transaction mined into a block the following ... 15 Bitcoin, Ethereum Feb 21, 2018 Feb 21, 20185n 7g ₫26340909
Ethereum Wallet I want simple ethereum web wallet and also send and receive function it should be simple web based app where new user signs up and he will have unique eth address for his account and with that eth add if he has balance can send eth or can receive eth to that address 19 Mật mã, Lập trình C++, node.js, Bitcoin, Ethereum Feb 21, 2018 Feb 21, 20185n 7g ₫20840909
Build Cryptocurrency exchange platform. I need blockchain expert. I need site similar https://token.store. You must have enough experience in erc20 token, smart contract and web3js. Please let me know if you can do. 9 PHP, HTML5, Bitcoin, Blockchain, Ethereum Feb 21, 2018 Feb 21, 20185n 6g ₫170931818
Smart Contract for ICO by Ethereum ERC20 Token We are looking for a freelancer to create a smart contract on Ethereum for our fundraising ICO. To boost our project we like to use this ICO as fundraising. We would also like help Integrating this into our website to show a visual of how much has been raised. We would like to setup the smart contract so that the coin supply is created based on the amount deposited and that any surplus coi... 33 PHP, Thiết kế trang web, Bitcoin, Programming Feb 21, 2018 Feb 21, 20185n 6g ₫34080149
Integrate Ripple wallet to cryptocurrency exchange market Hello I need ripple expert. My goal is to integrate ripple wallet to cyptocurrency exchange market. If you have experience with xrp, please bid Regards, Huapeng 14 PHP, Linux, Bitcoin, Web Development Feb 21, 2018 Feb 21, 20185n 6g ₫5386364
Make Crytocurrency / coin with adjustable masternode rewards What I mean by this is that you should apply the coding or logic by which I will be able to change masternode rewards of the coin per block. OR you can make some code / logic to give ALL masternodes 50 coins per block. If there are 50 masternodes then every masternode gets 50 coins per block. If there are 100 masternodes, then also every masternode gets 50 coins per block Project Type: One-t... 13 Bitcoin, Blockchain, Ethereum Feb 21, 2018 Feb 21, 20185n 3g ₫60909091
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. 12 Tiếp thị qua Internet, Tiếp thị, Bitcoin, Blockchain Feb 21, 2018 Feb 21, 20185n 2g ₫92068182
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... 15 PHP, Lập trình C, Kiến trúc phần mềm, MySQL, Bitcoin Feb 21, 2018 Feb 21, 20185n 1g ₫3659091
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* ... 5 Bitcoin Feb 20, 2018 Feb 20, 20184n 23g ₫272727
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. 21 Quản trị hệ thống, Linux, MySQL, VPS, Bitcoin Feb 20, 2018 Feb 20, 20184n 21g ₫71386364
Crypto currancey Etherium AlT coins Java Browser Online Miner [url removed, login to view] 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 CPU/GPU resources Task Two: Create online bro... 11 PHP, Java, Javascript, Bitcoin, Blockchain Feb 20, 2018 Feb 20, 20184n 18g ₫454545
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 removed, login to view] [url removed, login to view] [url removed, login to view] Please list your previous website design & development that has login/register function. Your design sample needs to be line with the favored websites we lis... 36 WordPress, HTML, Bitcoin, Blockchain, Ethereum Feb 20, 2018 Feb 20, 20184n 12g ₫1176873
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... 20 PHP, Python, MySQL, HTML, Bitcoin Feb 20, 2018 Feb 20, 20184n 8g ₫18285016
Cryptocurrency Exchange Website (Designing pages are ready) ERC20 Token and minable coins like BTC, LTC and others Reference: [url removed, login to view] 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 progress and rest after completion. Thank you! 29 PHP, Javascript, Thiết kế trang web, Kiến trúc phần mềm, Bitcoin Feb 20, 2018 Feb 20, 20184n 7g ₫32113636
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... 8 Tiếp thị, Nghiên cứu thị trường, Bitcoin, Viết sáng tạo, Viết bài kinh tế Feb 20, 2018 Feb 20, 20184n 7g ₫12741589
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. 2 3D Animation, Adobe Flash, Sản xuất hoạt họa, Bitcoin, Thiết kế đồ họa Feb 20, 2018 Feb 20, 20184n 6g ₫4545455
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. 55 HTML, node.js, Bitcoin, Angular.js, Web Development Feb 20, 2018 Feb 20, 20184n 4g ₫96136364
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. 5 Bitcoin, Blockchain, Ethereum Feb 20, 2018 Feb 20, 20184n 2g ₫12818182
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) 4 Bitcoin, Ethereum Feb 20, 2018 Feb 20, 20184n ₫8886364
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. 13 PHP, Kĩ thuật, Kiến trúc phần mềm, MySQL, Bitcoin Feb 19, 2018 Feb 19, 20183n 22g ₫12590909
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. 18 Bitcoin, Laravel, Thiết kế, Blockchain, Ethereum Feb 19, 2018 Feb 19, 20183n 20g ₫17136364
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... 6 Linux, Kiến trúc phần mềm, Bitcoin Feb 19, 2018 Feb 19, 20183n 18g ₫10090909
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 9 Lập trình C, Bitcoin, Ethereum Feb 19, 2018 Feb 19, 20183n 11g ₫4510954545
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... 21 Lập trình C, Lập trình C#, Lập trình C++, Bitcoin Feb 19, 2018 Feb 19, 20183n 9g ₫25674487
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, Quản trị mạng, Dịch vụ Web, Ethereum Feb 19, 2018 Feb 19, 20183n 8g ₫2818182
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... 4 PHP, Thiết kế trang web, Kiến trúc phần mềm, Bitcoin, Blockchain Feb 19, 2018 Feb 19, 20183n 7g ₫126443295
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