Bitcoin - Projekty i Konkursy

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/Konkurs Opis Oferty/Zgłoszenia Umiejętności Data Publikacji Kończy się Cena (PLN)
bitcoin wallet expert I am looking for a developer who can build a secure bitcoin or other curency 4 PHP, Projektowanie stron www, Architektura oprogramowania, HTML, Bitcoin Jan 20, 2018 Dziś6d 22g zł2017
Cryptocurrency Altcoins Trade Website Hi everyone! We want to create new cryprocurrency altcoins trade website. Altcoins to BTC or Altcoins to LTC etc. The freelancer should send us his/her portfolio about created trade website. The freelancer need to tell us the system requiredments about servers or securit services. The freelancer must well knowladge of english or Turkish. Most important thing is freelancer have to know whats c... 17 PHP, Projektowanie stron www, Projekty graficzne, HTML, Bitcoin Jan 20, 2018 Dziś6d 21g zł4434
Bitcoin or Litecoin clone The project consists of running a cryptocurrency based on Bitcoin open source. It is indispensable to be aware of the Bitcoin code, in addition to mastering Github Currency development can be accomplished using the guide offered on cryptonotestarter.org. The work will be paid in hours and the values can be discussed. 10 HTML, Bitcoin Jan 20, 2018 Dziś6d 21g zł130
ALT COIN - Block Chain I would like to create a new coin (alt coin) with under 2 sec transaction confirmation time with PoS concept. Requirements fork, wallet, web wallet, CPU mining capability including browser mining, security, 2 sec to instant confirmation with 100 TPS operation and premine. Please don't waste time if you don't have a Proof of Concept. 6 Kryptologia, node.js, Bitcoin, Blockchain, Ethereum Jan 20, 2018 Dziś6d 19g zł1707
bitcoin wallet I am looking for someone who can make a bitcoin wallet for us (see example) [adres URL ukryty - zaloguj się, aby zobaczyć] 29 PHP, Projektowanie stron www, Projekty graficzne, HTML, Bitcoin Jan 20, 2018 Dziś6d 19g zł2119
Develop Decentralized cryptocurrency exchange (DEX) We need to implement a decentralized cryptocurrency exchange for exchanging a selected set of 10 cryptocurrencies, including our own ERC20 based coin. The decentralized exchange must be user friendly, easy to use and very scalable. If you have knowledge in Raiden, BigChainDB, Atomic Swap and how you are planning to use them, you will be given additional payment. Please provide more details over... 10 JavaScript, Bitcoin, Ethereum Jan 20, 2018 Dziś6d 18g zł1563
BITCOIN EXCHANGE NEEDED- PRO Would like to open a site, I already have over 50 clients who will use service. I need to understand how the transactions work behind the scenes, from the time the order is placed by the client to the time we receive cash and they have their coin/ currency. ( PLEASE INCLUDE THIS IN YOUR APPLICATION OR DON'T BOTHER, ( SORRY TO SOUND RUDE) ) We are after a dev for the whole project, so dont... 9 PHP, Architektura oprogramowania, Handel elektroniczny, PayPal API , Bitcoin Jan 20, 2018 Dziś6d 17g zł22448
Mirror Trading Using Bitfinex API I'd like to do mirror trading using Bitfinex API. I have 1 master account doing all the trading, I need to mimic the trades on the master account to multiple slave accounts. I also need it to be scaled for each balance in the account. For example If master account has 1 btc and opens order for 0.2 btc (or 20%) A slave account with 5 btc will make the same order for 1 btc A slav... 14 PHP, JavaScript, Architektura oprogramowania, Metatrader, Bitcoin Jan 20, 2018 Dziś6d 17g zł2830
New cryptocurrency I am looking for a freelancer or company that I could cooperate with. The order includes creation of the new cryptocurrency. The contractor is required to have a high level of professional experience in cryptocurrency creation and the blockchain. Cryptocurrency must display the following features: SegWit, replay protection, unique address format, smart contract, zero knowledge proof and lightning ... 10 PHP, Programowanie C, Python, Architektura oprogramowania, Bitcoin Jan 20, 2018 Dziś6d 14g zł13500
Blockchain/Cryptocurrency wallet update We need someone who can build functions like smart contracts, atomic swaps and some advice for masternodes. Future we will make mobile wallet app and need coder. More details are provided through private chat. 12 Inżynieria, Mobile App Development, Bitcoin, Blockchain, Ethereum Jan 20, 2018 Dziś6d 14g zł109
Ruby on Rails, node.js, Bitcoin, Angular.js, Blockchain Jan 20, 2018 Dziś6d 14g
Build a Distributed Ledger using Blockchain Tech 1. I am looking for assistance in building a college level project using blockchain technology. 2. Aim - is to build a Distributed ledger system using Blockchain technology and remove a single point failure which is inherited with centralised ledgers. 3. Hyperledger development framework is to be used. 4. Finer details can be discussed further. 5. Timeline will strictly need to be followed. 3 Python, Bitcoin, Programowanie, Blockchain, Ethereum Jan 20, 2018 Dziś6d 13g zł455
BITCOIN Website need on urgent base (Only Experienced ) we need multiple bitcoin currencies transfer. 21 PHP, Projektowanie stron www, Projekty graficzne, HTML, Bitcoin Jan 20, 2018 Dziś6d 8g zł701
i need crytocurrency exchange website Kindly read the details carefully before bidding on this project. This project requires extra ordinary programming skills and a strong knowledge of the crypto economy. "I need a Crypto Exchange Website" with mobile apps done. I will discuss further details when I have shortlisted. Thank You 32 PHP, Projektowanie stron www, Architektura oprogramowania, Bitcoin, Blockchain Jan 20, 2018 Dziś6d 7g zł52985
Develop cryptocurrency exchange to trade Bitcoin, altcoins and ERC20 tokens BTC Altcoin exchange like [adres URL ukryty - zaloguj się, aby zobaczyć] and [adres URL ukryty - zaloguj się, aby zobaczyć] Please only people who had developed altcoin exchanges will consider. Please don't provide open-sourced exchange platform. We will ignore these offers. Please send an offer with your portfolios related to exchange development and crypto related [adres URL ukryty - ... 3 Architektura oprogramowania, Golang, Bitcoin, Ethereum Jan 19, 2018 Dziś6d 4g zł33596
Blockchain developer cryptocurrency needed long term, serious person Hi, I am looking for a blockchain developer, multiple projects, serious person. Option to choose for salary or stake in the project, need someone committed. Please write me when you are interested. Thanks 38 PHP, Programowanie C, Java, Architektura oprogramowania, Bitcoin Jan 19, 2018 Dziś6d zł116
Bitcoin Source Compile We need to compile the bitcoin opensource code, we need to develop our new bit currency. So we need a programmer with a experience in bit currency projects. Please rate your bids in the comments when replying. 18 PHP, Programowanie C, Python, Architektura oprogramowania, Bitcoin Jan 19, 2018 Dziś6d zł416
Build me a Crypto Exchange Kindly read the details carefully before bidding on this project. This project requires extra ordinary programming skills and a strong knowledge of the crypto economy. "I need a Crypto Exchange Website" with mobile apps done. I will discuss further details when I have shortlisted. Thank You 8 PHP, Kryptologia, MySQL, Bitcoin, Blockchain Jan 19, 2018 Jan 19, 20185d 22g -
ethereum smart contract Looking for someone to develop an ethereum smart contract for an ICO. Looking for someone to create a coin. 26 Architektura oprogramowania, Bitcoin, Tworzenie oprogramowania, Blockchain, Ethereum Jan 19, 2018 Jan 19, 20185d 21g zł17232
crypto currienceis and mlm script I need a custon mlm script to use with eth cryptocurrency and the 500.000.000 cryptocurriense in the name of joingroewth with the symbol jgt 10 PHP, Projektowanie stron www, Architektura oprogramowania, HTML, Bitcoin Jan 19, 2018 Jan 19, 20185d 18g zł1259
crypto coin exchange website I am looking for experience crypto currency developer to create coin exchange website. you should have very good knowledge on block chain and coin like bitcoin, ethereum etc. please provide me your past work. 23 PHP, Projektowanie stron www, Projekty graficzne, HTML, Bitcoin Jan 19, 2018 Jan 19, 20185d 17g zł4922
Crypto Exchange Platform We need an expert who has created a cryptocurrency exchange platform. Where users does buy and sell and using multiple digital currency. Please keep in mind we are putting heavy investments on this and we want you to show your past work on crypto exchange platform you have worked in 45 PHP, Programowanie C, Programowanie w C#, Architektura oprogramowania, Bitcoin Jan 19, 2018 Jan 19, 20185d 17g zł115300
Cryptocurrency Exchange Script - Bitcoin, Ethereum, Ripple etc... Cryptocurrency Exchange Script - Bitcoin, Ethereum, Ripple etc... 18 PHP, Java, HTML, Bitcoin, Redis Jan 19, 2018 Jan 19, 20185d 9g zł4909
Decentralized Cryptocurrency Exchange We need to implement a decentralized cryptocurrency exchange for exchanging a selected set of 10 cryptocurrencies, including our own coin. The decentralized exchange must be user friendly, easy to use and very scalable. 22 Amazon Web Services, Programowanie w C++, Bitcoin, Angular.js, Blockchain Jan 18, 2018 Jan 18, 20185d 3g zł5649
Crypto Coin Creation We are interested in developing a new a new privacy Cryptocurrency. We would need assistance with Development Services such as a Wallet App for Android and iOS. The Crypto Coin Creation. Also open to suggestions about Crypto Coin Mining, Pool Mining, Coin Web Wallet, (ICO) Development, MLM Software Development, and Smart Contract Development. I know that I mentioned a lot. 48 PHP, Programowanie C, Android, Architektura oprogramowania, Bitcoin Jan 18, 2018 Jan 18, 20185d 2g zł15661
Pamm scrypt system We need Pamm scrypt system [adres URL ukryty - zaloguj się, aby zobaczyć] we need pamm script system mast do BTC withdraw / deposit affiliate procent for transaction profit for admin % API choice attach to any trade platform 15 PHP, JavaScript, Architektura oprogramowania, HTML, Bitcoin Jan 18, 2018 Jan 18, 20184d 23g zł1679
Need to add 5 Coins to Peatio CryptoCurrency Exchange Script Hello we are running Peatio on our exchange and need to add 5 coins, XRP,XMR,XLM,ETH,ETC 14 PHP, Ruby on Rails, MySQL, UNIX, Bitcoin Jan 18, 2018 Jan 18, 20184d 17g zł468
Exp Developer for geth customization with blockchain and go lang We are looking for a good developer or a team for 2 projects Blockchain Trading website / hyperledger /Smart Contracts, Golang to customize ethereum core : main conditions 1- fully secured 2- you should have done this type of work before 3- you should know what is bitcoin and aware of bitcoin trading 4- handle many transactions in the same time. Thank you 3 Golang, Bitcoin, Blockchain, Ethereum Jan 18, 2018 Jan 18, 20184d 17g zł113
Cryptocurrency Exchange Script - Bitcoin, Ethereum, Ripple etc... Cryptocurrency Exchange Script - Bitcoin, Ethereum, Ripple etc... 38 PHP, Java, HTML, Bitcoin, Redis Jan 18, 2018 Jan 18, 20184d 17g zł14648
Find ICO Website Developer with high skills Hello, everyone! I need your help to develop my ICO website. If you are a ICO expert, please bid on my project. I will explain my more details to a proper candidate over chat. Thanks in advance. 29 PHP, JavaScript, Projektowanie stron www, HTML, Bitcoin Jan 18, 2018 Jan 18, 20184d 17g zł1922
blockchain - save hash with low fees i want to save a hash to the blockchain with the transactions fees to be as low as possible, please only bid if you've already done a similar project - basically i need a page from where i can enter the hash with a "send" button to submit the transaction (the important here is to have almost no fee per transaction) 12 PHP, Bitcoin, Blockchain, Ethereum Jan 18, 2018 Jan 18, 20184d 15g zł2977
I would like to hire an Article Writer "Connected" is an online platform that helps people to find experts (chat/video call). Anyone from architects to Italian chefs, tutors, doctors, lawyers, etc. Instant payment system - credit card payments/cryptocurrencies. We are launching soon on App store and prepare for ICO. Need PR and publicity recognition. 26 Reklama, Article Writing, Bitcoin, Blockchain Jan 18, 2018 Jan 18, 20184d 12g zł185
Build Ethereum online Wallet for ERC20 token Hi, i have custom ERC20 token that build using Ethereum smart contract, and i need online wallet for members to manage this token with PHP & MySQL I used to be using free service like [adres URL ukryty - zaloguj się, aby zobaczyć], but i want more simple functions, already made modification from MyEtherwallet on [adres URL ukryty - zaloguj się, aby zobaczyć] , but want to be more simple tha... 15 PHP, JavaScript, Bitcoin, Blockchain, Ethereum Jan 18, 2018 Jan 18, 20184d 11g zł1021
HIring a cryptocurrency expert for building a mining rig - need some advice on building our own mining rig for cryptocurrencies - provide us a list of everything we need to buy for building our own mining rig - after we purchase everything, guide us through how to set up and answer our questions. *We are looking for passionate developers who care about quality and efficiency that we can have a long-term collaborative relationship with . If you thin... 16 Kryptologia, Bitcoin Jan 18, 2018 Jan 18, 20184d 6g zł1823
Copy Site and finalize art and connect the coins The project consists of the following steps: 1. Copy of the art of the site that is almost finished. 2. Include the following digital coins. BTC, ADA, BCH, DASH, ETH, ETC, LTC, XMR, XRP, XLM, ZEC these being the basis and quota for the BTC, example ADA / BTC, XRP / BTC. 3. You need to include a page for the client's wallet your deposits and withdrawals. wallet [adres URL ukryty - ... 23 PHP, Projektowanie stron www, Architektura oprogramowania, HTML, Bitcoin Jan 17, 2018 Jan 17, 20184d 5g zł1751
Integrate Crypto Currency Wallet to Exchange Site I'm developing the cryptocurrency exchange system. I Need to integrate the Crypto wallet such as Bitcoin, Ethe, Ripple, Ada, ... into my site. I need to create and manage separate wallet for each account or similar solution for easy wallet management and less cost for withdrawing. The scope includes handover of source code and related documentation and Application Demo Welcome to everyone! 38 Architektura oprogramowania, Bitcoin, Blockchain Jan 17, 2018 Jan 17, 20184d 5g zł4776
New ecommerce store (clothing based) I need a new website. I need you to design and build a website for my small business. The web store is based around selling clothes and accessories. I want quite a different look to most webstores, would like it very colourful, different shapes etc. Would like some information on how i can accept cryptocurrencies as a payment option. Optional that prices to be shown like this: 0.01BTC ($100). Very... 52 PHP, Projektowanie stron www, Handel elektroniczny, Bitcoin Jan 17, 2018 Jan 17, 20184d 2g zł1065
find a very good bitcoin mining software for me to use or help myself invest money, or find me very high investment returns find a fast software for me to mine bitcoin and/ or help me invest my money into someting that will earn me lots of money 17 PHP, Pozyskiwanie danych z Internetu, Architektura oprogramowania, Eksploracja danych, Bitcoin Jan 17, 2018 Jan 17, 20183d 22g zł441
create new altcoin with independent ecosystem (no ICO) Create a new altcoin with under 2 sec transaction confirmation time with PoS concept. I DONT WANT ANY ICO. need fork wallet web wallet CPU mining capability including browser mining security 2 sec to instant confirmation with 100 TPS operation. premine 13 Architektura oprogramowania, Kryptologia, Bitcoin, Blockchain, Ethereum Jan 17, 2018 Jan 17, 20183d 20g zł2437
Bank to alt/neo plan, (trading)bot needed Dear Freelancers, We would like to have/make a site like: [adres URL ukryty - zaloguj się, aby zobaczyć] [adres URL ukryty - zaloguj się, aby zobaczyć] Where people can do banktransfer and get mostly NEO (later on other coins?) back for it to their wallet. No wallet function on the site. Directly transfer etc. There must be a constant trading bot / exchange connection behind the site so n... 12 Bitcoin, Ethereum Jan 17, 2018 Jan 17, 20183d 17g zł51
Need a Team / Advisors to launch an ICO | Fin Tech Company In the quest of running a successful ICO, we have decided to add more team members to our list. We currently need 7 persons to join our team. We are planning a global business Fin Tech solution that would be situated in UK. Currently we are looking for Individuals that will help us accomplish our set goals after we have successfully raised funds via ICO. Team will be responsible for the tot... 23 Prawo, Reklama, Pomoc techniczna, Bitcoin, Web Development Jan 17, 2018 Jan 17, 20183d 17g zł3919
VA for bitcoin blogger I am looking for a VA to assist me. The hours are from 1 PM to 10 PM EST when I'm available. If you have writing ability that is good. If you know about bitcoins that is even better. This is long term. Starting pay is $2 an hour. Tell me something about your experience with writing or bitcoins. 9 Copywriting, Virtual Assistant, Article Writing, Bitcoin, Blog Writing Jan 17, 2018 Jan 17, 20183d 17g zł10
Crypto Currency Exchange Web App Needed We are looking to get developed Crypto Currency Exchange web app on which frontend should be Angular JS and Beckend should be Node Js. Project will be awarded after checking the 50% work on our project as well as first milestone will also be released. Where we could connect APIs easily of Bitcoin, Etherum, Ripple and two more. All the modules should be separated like if one goes down it should no... 4 Java, Projekty graficzne, Kryptologia, Bitcoin, Blockchain Jan 17, 2018 Jan 17, 20183d 16g zł2380
*CRYPTOCURRENCY COPIER / ROBOT* ***SHORT OVERVIEW*** When master trades, The subscribers should receive the same trade in whatever type of risk they chose A) Either % but based on their balance B) Fixed % - Trades should be executed instantly on all accounts even if there are thousands and regardless of broker. That is including changes or any stop loss or take profits etc too. --- When the master platform is given he... 20 Kryptologia, Bitcoin, Tworzenie oprogramowania, Blockchain, Ethereum Jan 17, 2018 Jan 17, 20183d 14g zł4298
Anti-Counterfeit Platform on Blockchain We want to make an application which will help consumers and producers fight counterfeit goods. Our solution can be implemented in any industry and in any country. With rare exception, approval from federal agencies is not required, but might be beneficial for expediting systems integration. After passing a certain market threshold, using our system, or one of the same type, will become critically... 2 PHP, Architektura oprogramowania, Programowanie w C++, Bitcoin, Blockchain Jan 17, 2018 Jan 17, 20183d 14g zł3787
Need a cryptocurrency expert actively trading at bittrex for our new start-up CryptoJogi.com We want an expert who can predict the prices of different cryptocurrencies, tradeable at bittrex exchange. We are not expecting 100% success rate, nor we will invest money based on these predictions. All we want is to populate our recent start-up ([adres URL ukryty - zaloguj się, aby zobaczyć]) with good number of mostly successful predictions. The terms are as follow: The winning bidder of thi... 3 Badania finansowe, Bitcoin Jan 17, 2018 Jan 17, 20183d 11g zł5593
crypto mining i need the best cheapest providers for products to mine crypto currencies chips, or cellphones if needed etc and also a financial statement for return on investment with and without taking account of electricity bill best one wins 0 Bitcoin Jan 17, 2018 Jan 17, 20183d 8g zł68
help me to set up hidden crypto miner Project details here : [adres URL ukryty - zaloguj się, aby zobaczyć] Note: No need to develop from scratch. monero is the preferred coin. so only please the big if you already have the working pre-develop[ed solution. Happy bidding. Best regards, Raja. 2 Kryptologia, Bitcoin, Ethereum Jan 17, 2018 Jan 17, 20183d 7g zł85
Download Bitcoin blockchain and create API for wallets We have built a web site for Bitcoin and other cryptocurrency wallets and we need a specialist who can download the blockchain on our server and create the API for the user wallets and API for the Merchant option. Basically fully functional Bitcoin wallet. 49 PHP, Architektura oprogramowania, HTML, Bitcoin, Blockchain Jan 17, 2018 Jan 17, 20183d 6g zł4485
BITCOIN EXCHANGE BRAZIL BTC/BRL I WANT A BITCOIN EXCHANGE. IS AN EXCHANGE FOR BITCOINS IN BRAZIL, IN THIS FIRST MOMENT I DONT NEED ANOTHERS COINS, IT WILL BE AN UPGRADE. FOR NOW, JUST BITCOIN. I WANT TO FOLOW EXACTLY THE WEBSITE IN BRAZIL (.[adres URL ukryty - zaloguj się, aby zobaczyć]) CALLED BITCOINTRADE. PLEASE, GOOGLE IT BEFORE MAKE ME A PROPOSAL. Any exchange software should have these 4 different components working ... 25 PHP, Programowanie C, Linux, Architektura oprogramowania, Bitcoin Jan 16, 2018 Jan 16, 20183d zł3227
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