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Backend & DB for cryptoexchange with payment gateway

A good portion of the project is already completed. Our budget is 200€-400€ and the project deadline is exactly no later than 26th of May. More information about the project is in the .pdf file. Our priorities are security then convenience and finally, optimization.

This project is about creating the backend infrastructure (preferably with NodeJS and MySQL) for a cryptoexchange that involves both fiat and crypto currency. Additionally, a payment gateway (Paypal, ERC20, Bitcoin) will need to be implemented as well. As previously stated, part of the work is already complete: a good chunk of the database is structured, an algorithm for finding optimal exchanges is written, and some very basic web3js manipulation is present. For those interested, I recommend reading the .pdf file. We have intentionally made parts of the documentation ambiguous to hide important project characteristics. However, we will share the information with those interested in partaking in the project.

Beceriler: Ethereum, MySQL, node.js, PayPal API, PHP

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İşveren Hakkında:
( 1 değerlendirme ) Osijek, Croatia

Proje NO: #19290099

Bu iş için 22 freelancer ortalamada €378 teklif veriyor

sapotacorp

Bok branimir1999, If you want then we can have a 1-1 discussion on FL chat. kindly let us know. Our latest Node projects are: [login to view URL], [login to view URL], gnetentertainment.com. Best regards, Michael

€400 EUR in 6 gün içinde
(782 Değerlendirme)
8.6
JinDongZhe

For your win business. Hello sir .nice to meet you. I have just read your project and supported your good idea. I am senior developer that you are looking for somebody. I am interesting about your description. I Daha Fazla

€333 EUR in 10 gün içinde
(58 Değerlendirme)
7.1
shiningdevelopor

CRYPTO EXPERT. CRYPTO EXPERT. CRYPTO EXPERT. CRYPTO EXPERT. CRYPTO EXPERT. CRYPTO EXPERT. CRYPTO EXPERT.

€1000 EUR in 10 gün içinde
(85 Değerlendirme)
6.8
kipdev13

Hi, sir I read your requirement carefully. I can support you well. I have great skills in website developing . I am sure I can complete your project! If we have chat, then we can be sure for each other. Let's sta Daha Fazla

€200 EUR in 4 gün içinde
(61 Değerlendirme)
6.4
seemasit

Hi there, I've gone through the post description carefully and ready to start work on this project. Requirements are very clear but please come over the chat so that i can get more requirements if remaining. I am Daha Fazla

€333 EUR in 10 gün içinde
(62 Değerlendirme)
6.9
KGeorgy

Hi, Thanks for your job posting. I've read your project description carefully. You are going to build backend & DB for cryptoexchange with payment gateway. As a senior web developer, I have rich experience in this k Daha Fazla

€300 EUR in 10 gün içinde
(41 Değerlendirme)
6.1
rwebexe

I can help you to setup or modify e-commerce site for your products, and also make customizations as per your needs And i will add several payment methods for your customer if you have specific in mind than lmk i wil Daha Fazla

€406 EUR in 10 gün içinde
(38 Değerlendirme)
6.2
alexwmsoft

Hi there, I am an experienced website developer, and I have 6 years experience in developing websites using HTML, CSS and PHP and several frameworks such as Wordpress, ASP.NET, Laravel, Codigniter, django and so on Daha Fazla

€333 EUR in 10 gün içinde
(19 Değerlendirme)
5.9
javedaasim

We built dynamic, pretty, professional websites for over 10+ years, and listened closely to our clients. They wanted solutions, they needed more customers, but many thought a website would do it. When what they really Daha Fazla

€500 EUR in 10 gün içinde
(29 Değerlendirme)
5.5
artiboria

Hi, Thank you so much for the nice work opportunity. I am a Website and Mobile Application developer and having more than 12 years of experience in the industry. I do work on following technologies... Android Appli Daha Fazla

€335 EUR in 5 gün içinde
(52 Değerlendirme)
5.5
Topman123

Hello sir, nice to meet you, I have just read your project. I am interesting about your project. I have top skill of blockchain and have experienced for long time. . I have been creating high quality and excellent Daha Fazla

€333 EUR in 10 gün içinde
(18 Değerlendirme)
5.3
avto35217

Hi,sir, I'm sure that I can be a excellent candidate for your project. Please contact me, so that we can discuss more over chat. I value my credits from clients. Thank you for your reading. I have worked for a long ti Daha Fazla

€333 EUR in 2 gün içinde
(11 Değerlendirme)
4.1
RushService

Feel fee to contact me forBackend & DB for cryptoexchange with payment gateway .Shoot me message to discuss further more details .We provide the comments,images,videos,demos and live sessions in order to help the Daha Fazla

€250 EUR in 3 gün içinde
(9 Değerlendirme)
4.1
ChewGekKhim

Dear Client! I've just read your job description carefully. I am very interested in this job and I think that I am suitable to this job. As a Blockchain expert, I have a lot of experience in blockchain/cryptoc Daha Fazla

€500 EUR in 7 gün içinde
(2 Değerlendirme)
4.2
shenji108

Nice to meet you. I have RICH EXPERIENCE and GOOD SKILLS for your project. I have learnt a graphic design course and I have a good sense of website and graphics design. I am a senior Full-Stack Web Developer. M Daha Fazla

€333 EUR in 10 gün içinde
(3 Değerlendirme)
3.2
ben0724

Hello. I am very interested in your job post about currency exchange. Le'ts discuss more detail in chat. Best Regards.

€333 EUR in 10 gün içinde
(2 Değerlendirme)
2.4
jinyin1117

Hello I am Henry. My account is closed because of my fault. I tried to create cooperate account, and there's something wrong. I asked freelancer development team to open my account and they will open after 7 days. Daha Fazla

€333 EUR in 10 gün içinde
(2 Değerlendirme)
1.6
maektwain

Already experience on working exchange s based on fiat pairs as well ETH smart contracts pairs. let me know if you wish to close it quickly

€444 EUR in 5 gün içinde
(2 Değerlendirme)
1.4
mobileappsites

Greetings, We are colonist services providers from India for Cryptocurrency development, Crypto exchanges,Crypto wallets, Mining platform apps, Exchange platforms and other types of Blockchain based development.  Daha Fazla

€333 EUR in 10 gün içinde
(1 Yorum)
1.2
ShahabazAli

Good Day,, Looking forward for more details about project. Backend & DB for cryptoexchange wll be done error free and payment gateway is a regular routine lets disscuss and start the project Thank You

€333 EUR in 10 gün içinde
(1 Yorum)
0.4