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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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    38 搜到的工作,价格货币为 USD

    I am looking for a core software component in python (v3.7 or v3.6) that allow scale the bitcoin payments processing at any store without headaches while the payments privacy remains undisclosed by third party services. In resume a simple function that takes as parameter one BTC public address and the minimum numbers of confirmations required. This function will return the confirmed and unconfirm...

    $20 - $50
    $20 - $50
    0 个竞标

    Do you know the ETH and MDZA? Please bid on this if you know convert eht to mdza.

    $38 / hr (Avg Bid)
    $38 / hr 平均报价
    7 个竞标
    Modify Stratum proxy 6 天 left
    已验证

    I would like someone help me to modify this one: [登录来查看链接] By default, it shows name and version of miner at pools, but I want to hide this information. I need someone modify it to prevent pools know about the name and version of miner. Contact me only if you have good knowledge about mining, Stratum proxy and you can solve this problem. Thank you!

    $151 (Avg Bid)
    $151 平均报价
    5 个竞标

    I want to make masternode host platform under this 2 link is running this platform long time. [登录来查看链接] [登录来查看链接]!/ I need small modify to signup system i want ad signup with referral system and people pay monthly bill with my chose coin. if you 100% sure you can make it then bid and if you have previous work this type of work then bid otherwise please dont dont west your bid

    $2001 (Avg Bid)
    $2001 平均报价
    6 个竞标

    Help connecting bitcoin wallet with market app in ubuntu

    $91 (Avg Bid)
    $91 平均报价
    4 个竞标

    Create a bitcoin fork from bitcoin github

    $80 (Avg Bid)
    $80 平均报价
    6 个竞标

    I'm looking for a blockchain developer who is good at coin fork. Developer should experienced at building daemons, coin fork, ERC20, ICO, smart contract and so on. Please kindly bid on my project and share your past works with me.

    $568 (Avg Bid)
    $568 平均报价
    20 个竞标

    I need a script like this : [登录来查看链接] [登录来查看链接] [登录来查看链接] But support only one country support currnecy : btc & eth & xrp & bitcach & litecoin and more .... If you have already made the script and are ready, please send a demo to see it tanx

    $510 (Avg Bid)
    $510 平均报价
    10 个竞标

    Hello, We are looking for person who can build as Strategy for Auto-bot trading in crypto currency. You need to have experience with Forex or crypto trading.

    $149 (Avg Bid)
    $149 平均报价
    6 个竞标

    Hello, I need someone with good experience on Gekko or any crypto currency Bot with existing strategie and can make profit. Please contact me only if you have some demo to show.

    $225 (Avg Bid)
    $225 平均报价
    4 个竞标
    Lunch ico on stellar 4 天 left
    已验证

    Remittance on stellar network. Want to lunch ico on stellar

    $1003 (Avg Bid)
    $1003 平均报价
    8 个竞标
    Issuing of assest 4 天 left
    已验证

    Want to issue tokens on the the stellar network

    $219 (Avg Bid)
    $219 平均报价
    9 个竞标

    LIVE Macro spread sheet for major crypto curencies showing arbitrage positions. Like this but one that works Use Dropbox to download file: [登录来查看链接] Excel Buttons: ‘Refresh Exchanges’ button — Refreshes Data and price differences on Bittrex, Poloniex and Cryptopia. ‘Refresh Chart Data’ — Refreshes Charts starting in cell A50. ‘Clear Trade Data’ &md...

    $320 (Avg Bid)
    $320 平均报价
    13 个竞标

    Read the software requirement document carefully and contact me through pm if you are qualified and ready. Dont contact if you havent gone through it.

    $4193 (Avg Bid)
    $4193 平均报价
    29 个竞标
    Horta à Porta 3 天 left

    To define define this proect I use some Buzzwords: PWA, omnitrade blockchain marketplace (multivendors ecommerce on demand food distribution). It may be something similar to Grubmarkket doordash and uber-eats integrated under blockchain platform? The marketplace is intended mostly for farmers. they may be able to build their shops but generally do not have that capacity, so we will have to do it ...

    $4206 (Avg Bid)
    $4206 平均报价
    41 个竞标
    VPS server 3 天 left
    已验证

    setup vps server with nginx and other simple server

    $33 (Avg Bid)
    $33 平均报价
    24 个竞标

    Hiring an Ocaml and Blockchain developer for long term contract. Must have: 3+ years experience of Ocaml/Haskell/F# or any other functional programming language. 3+ years experience of Blockchain development It would be great if you already have experience to develop a blockchain protocol with Ocaml language. [登录来查看链接] I want to implement this protocol. so if you have a basic understanding in th...

    $21 / hr (Avg Bid)
    $21 / hr 平均报价
    7 个竞标
    Need to make (POS/MN) Coin 3 天 left
    已验证

    I just need to build a pos/mn coin (75% mn / 25% Stack) Reward Blockchain. wallet : windows, linux, mac

    $565 (Avg Bid)
    $565 平均报价
    5 个竞标

    I wish to make a new version of a crypto wallet and have it called v1.0.3 as my own version. Everything else will be the same as wallet

    $18 (Avg Bid)
    $18 平均报价
    3 个竞标

    Take the most profitable reliable crypto bitcoin alt coin forex trading strategies and program them into Mudrex Algo Trading platform (theres examples on the platform) - [登录来查看链接] (see visual below) Then I want you to run some backtests on their platform to prove they are above average profitable trading strategies and work. Please type "WIN" in project proposal to let me know you pay at...

    $181 (Avg Bid)
    $181 平均报价
    5 个竞标

    I need to integrate my bitcoin wallet with automatic payments on my site (the bitcoin automatic payment system is ready, I need only to top it up, etc.)

    $308 (Avg Bid)
    $308 平均报价
    12 个竞标

    I need to integrate my bitcoin wallet with automatic payments on my site (the bitcoin automatic payment system is ready, I need only to top it up, etc.)

    $223 (Avg Bid)
    $223 平均报价
    4 个竞标
    bitcoin crash game 2 天 left
    已验证

    i need someone who is able to develop a bitcoin crashgame.

    $1120 (Avg Bid)
    $1120 平均报价
    8 个竞标

    We need an gaming bot in telegram just like- [登录来查看链接] Only serious communication. We are looking for a long-term participation for the project. Our Requirements Language - English. All functions like - [登录来查看链接] And in addition we also need Channel Joining feature.

    $125 (Avg Bid)
    $125 平均报价
    6 个竞标

    Have an old coin that I want to take back and make a few changes to to ensure its future. Also need to make a new wallet version and secure it. Partnership is available for right person

    $168 (Avg Bid)
    $168 平均报价
    15 个竞标
    Create a cardano node 1 天 left
    已验证

    Hi. I am looking for some who can create a Cardano Cryptocurrency node.

    $325 (Avg Bid)
    $325 平均报价
    2 个竞标
    Setup Cryptocurrency robots 1 天 left
    已验证

    I want somebody to setup and configure cryptocurrency robots for me so they start making profit Ones that need to be setup 1. [登录来查看链接] 2. [登录来查看链接] 3. [登录来查看链接] 4. [登录来查看链接] 5. [登录来查看链接] I am open to other robots you know work and make profit

    $187 (Avg Bid)
    $187 平均报价
    8 个竞标

    A bitcoin related website exchange

    $686 (Avg Bid)
    $686 平均报价
    29 个竞标

    I am looking for advertisement agency for our paid advertisement campaign for our ICO/STO.

    $304 (Avg Bid)
    $304 平均报价
    15 个竞标

    Need a Bounty Manager in Bitcoin Talk.

    $443 (Avg Bid)
    $443 平均报价
    4 个竞标

    I need you to integrate [登录来查看链接] Bitcoin Wallet into my existing social network web application, * All newly registered users must be assigned a Bitcoin Wallet that will work internally in the social network ecosystem for internal payment amongst all registered member's without member needing to leave the social network to make payment

    $103 (Avg Bid)
    $103 平均报价
    5 个竞标

    I am looking for an experience Quantitative Management professional with expert knowledge of cryptocurrency Exchange and trading and who could manage our coin trading Exchange. I mean someone who could do market value management (quantitative management ), set up coin pairs in the exchange, list and control prices, trade volumes in the Exchange and do minor page designs and optimisation. You are...

    $8 / hr (Avg Bid)
    $8 / hr 平均报价
    7 个竞标

    Looking to have a custom built Bitcoin Gambling site made with a game similar to craps. - Automatic deposit after 1 confirmation. - deposit/withdraw/transfer BTC - 2fa authentication - full control panel for admins - Live chat - support tickets - chat for players - bet lookup, so players can share their bets - affiliate - full responsive play at mobile, pc, tablet. - easy to make a bonus in adm...

    $8993 (Avg Bid)
    $8993 平均报价
    27 个竞标

    We require a blockchain exlore for a coin forked off of the cryptonote chain, You will be using an existing design available in a repository on github. The repo is complete with GUI UI we will just need to edit for our use. Require skills : C, C++, C#

    $35 / hr (Avg Bid)
    $35 / hr 平均报价
    35 个竞标

    I need an cryptocurrency wallet Android app. I would like it designed and built. More details in inbox (Removed by Freelancer.com admin)br /> PAYMENT ONLY ON COMPLETION SEND OFFERS IF ONLY YOU AGREE

    $506 (Avg Bid)
    $506 平均报价
    4 个竞标
    Very simple free explorer install 3 小时 left
    已验证

    I want to install this free open source explorer: [登录来查看链接] Instructions are provided and very simple. I need it on my domain with my logo added. I can assist to make the job as simple as possible

    $26 (Avg Bid)
    $26 平均报价
    8 个竞标
    Crypto expert required.. 6 天 left
    已验证

    I need a Crypto expert for my current projects. If you have knowledge please bid. Details will be shared in message with the freelancers.

    $7 - $72
    加封
    $7 - $72
    40 个竞标

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