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callback scripts for auto sending Bitcoins and Perfect Money

$250-750 USD

Ditutup
Dibuat lebih dari 9 tahun yang lalu

$250-750 USD

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We need to code a callback script for our e-currency exchange website. We exchange various e-currencies and crypto-currencies. Problem is that all work is done manually. We need to switch to automatic exchange process. Right now, when clients want to transfer from Perfect Money to Bitcoins, we always manually check the payment and then manually send Bitcoins. This is very time consuming and slow. We want to change it to automatic process. You must have experience with bitcoins, blockchain, cryptocurrencies and e-currencies such as Perfect Money, Egopay, Okpay. Security is the main goal. There will be API access to our accounts and it must be more than 100% safe against hackers. We did already automatization in the past and our account was emptied because some hacker was able to change payment API script via vulnerability described here: [login to view URL] and with so called Tamper Data plugin for Firefox. For this project, we need to make automatic script for the following exchange: Perfect Money to Bitcoins Bitcoins to Perfect Money When client sends payment Perfect Money via SCI payment button, it calls callback php script. This script should validate the payment in Perfect Money (also check against data tampering) and then script should send bitcoins to the client's bitcoin address and also send email with link to transaction ID on [login to view URL] And second which is vice versa: When client sends bitcoin payment, script should monitor it and once the payment gets 3 confirmations by bitcoin network, script will send money via Perfect Money API to client's Perfect Money account based on the order submitted on our website. What does it mean: - you need to understand Perfect Money API and bitcoins API Our website is [login to view URL] You can go and submit new order for Perfect Money to Bitcoin and Bitcoin to Perfect Money so you can see what we do and what we want to automatize. Our competitors with already automatic script: [login to view URL] Perfect Money API: [login to view URL] Bitcoin API: [login to view URL] Please note that we want 100% secure scripts. We want to avoid another big losses. Please read also this article about Perfect Money API vulnerability which you need to avoid: [login to view URL] If we are satisfied with results, we can work with you on other type of transactions such as Perfect Money to Egopay, Bitcoins to Egopay, OKPay to Bitcoins, Bitcoins to OKpay. These all we want to automatize, so if you are good, future projects are yours. Please do not bid if you dont have experiences with Bitcoins, Blockchain and at least one API of e-currency processor. Thank you.
ID Proyek: 6281692

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8 freelancer menawar dengan rata-rata $569 USD untuk pekerjaan ini
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Thanks for reading this! I have few recommendations and questions. Please let me know a suitable time for a chat. Regard
$550 USD dalam 15 hari
4,8 (123 ulasan)
7,2
7,2
Avatar Pengguna
Hi sir, My name is Leonardo Medina, and I´m from Brazil. I have lots of experience in PHP. Please drop me a line, so we can discuss this project in details and I can make a proper bid. I'm an experienced Web Developer / Software Developer working since 1996 in this field, with 5+ years experience in PHP, ASP, HTML, CSS and Javascript (JQuery & Ajax), 8 years in Delphi and 1 year in Java, 2 years of experience in programming stored procedures, triggers, creating tables and relationships for SQL Server, and 10 years in mySQL; 2 year in Solr/Lucene (for full-text searches), Redis and CouchDB. Looking forward to hear back from you. Best Regards
$500 USD dalam 10 hari
4,9 (150 ulasan)
6,9
6,9
Avatar Pengguna
A proposal has not yet been provided
$333 USD dalam 10 hari
5,0 (6 ulasan)
4,9
4,9
Avatar Pengguna
Hello, Seems like I am providing the first legitimate bid. In any case I am very experienced with Bitcoin and various cryptocurrencies as I have helped start multiple casinos and exchanges as well as Perfect Money. I think I can install the demon and configure everything properly so you aren't exposed to transaction malleability attacks and so on. Let me know if you're interested, Best regards, Max.
$722 USD dalam 3 hari
5,0 (3 ulasan)
5,0
5,0
Avatar Pengguna
checked this requirement,and i think we can easily handle this requirement,i will tell you something about my team, Have a team of 34 professionals,with more then 11 year of experiecen,worked in php/mysql,LARAVEL-4,Symfony-2,Cakephp 1.2,1.3,2.x,html,html-5,bootstrap, we can start this project as soon as possible.
$590 USD dalam 17 hari
2,6 (38 ulasan)
6,8
6,8

Tentang klien

Bendera SLOVAKIA
Slovakia
5,0
2
Memverifikasi Metode pembayaran
Anggota sejak Nov 3, 2006

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