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Build a robust API

I want to build a robust API with the following features

1. Accept card and make a curl request, save card encrypted or hashed. return result.

2. CRUD user

3. CRUD Transaction

Please, I need only qualified candidates with very good SQL because API would be used on an enterprise application. so DB query speed is key

Skills: MySQL, Payment Gateway Integration, PHP, Software Architecture, SQL

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About the Employer:
( 0 reviews ) White Plains, United States

Project ID: #18868463

30 freelancers are bidding on average $1201 for this job

sritechnocrat

Hello Sir, We have understood your basic requirement for accepting payment using API and managing user details. Please let me know above two functions will be stand along with integrated with bigger program? At More

$750 USD in 30 days
(77 Reviews)
7.7
langlangFan

Hi, thanks for your job posting. I am good at API design and development. Frankly to say, I have 10+ years of software experience The most important thing for me is the client's satisfaction, good result, and high q More

$1250 USD in 20 days
(50 Reviews)
7.4
bizviz318

Hello I have read your job description carefully. I have over 10 years of experiences in SQL and API development. Estimation: 10 days, $1000 I am looking forward to hearing from you soon. Regards, Yang

$1111 USD in 10 days
(30 Reviews)
7.5
AzzkaNoor

I have read your project details. I have to ask a few questions. Can you please message me via chat so we can discuss all the details to elicit all the requirements and hence start the development? I will showcase al More

$1250 USD in 20 days
(28 Reviews)
7.1
KashirinA

Hello. How are you I have read your description carefully. Very Interesting. I have many experiences in api and CRUD. So I can finish your project quickly and perfekashirin123!@#ctly. If you hire me, I will do my More

$1250 USD in 20 days
(98 Reviews)
6.9
ArkssTech

Hello Manager ,   Hope things are going well in your life!!   We are a team of 50+ individuals highly experienced in creating wonderful Web applications and apps for our clients to increase their business and to he More

$1493 USD in 20 days
(34 Reviews)
6.4
schoudhary1553

Hello, I have gone through your job posting and become very much interested to work with you. I am an expert in this field. I have already completed several projects like this. For evidence you can see my profile. More

$1000 USD in 12 days
(66 Reviews)
6.5
AndrejStastny

Hi there? I am a full stack developer with Mysql, Postgresql, MongoDB, Laravel, CI, ExpressJS, Node, Vue, Angular and so on more than 8 years. Especially I have strong skill Mysql Query, MongoDB, Laravel (CURD) + VUE More

$1250 USD in 20 days
(55 Reviews)
6.3
stanislav103

hello how are you? I am very interested in your project. I have read your description very carefully. I can do your job in time. kind regards

$1250 USD in 20 days
(31 Reviews)
5.8
ludwig333

Hi. i am a full web developer with over 5 years on freelancer.com. ****In SPECIAL very familiar with Laravel***** I have read your description and have interests in your project. I have rich experiences in projects More

$800 USD in 20 days
(41 Reviews)
5.9
adicoman

Hi, I am very interested to work on your project. I have 15+ years experience in Web Development using a large variety of programming languages, frameworks, database architecture, APIs, CRMs, ERPs, mobile develo More

$1472 USD in 20 days
(61 Reviews)
5.9
pakistansolution

Hi there, I have seen you need to integrate a payment gateway for your website, I am very good at this job, I know very well about payment gateways, Paypal, stripe, easyPay, Jazzcash, Instamojo, and many others just More

$1000 USD in 20 days
(60 Reviews)
5.7
ZawnTechnologies

Greetings I have gone through the project description and i have great expertise with MySQL, Payment Gateway Integration, PHP, Software Architecture, SQL. You are welcome to chat with me so that we can discuss in detai More

$1250 USD in 15 days
(8 Reviews)
5.6
pindianwebhub

The dear hiring manager, I'm very interested in your job As you can see my profile, I am a expert of web development My Profile : https://www.freelancer.com/u/pindianwebhub My Best Work : https://elevate More

$933 USD in 20 days
(45 Reviews)
5.6
kanwalrafique

Hi, I'm a PHP developer. I have experience in working with a payment processor API whose name is TabaPay. They store customer's card on their system after encrypting it using Public/Private Key cryptography. I'm consid More

$1200 USD in 30 days
(33 Reviews)
5.3
yesikov1224

Hi. Dear I have read your job posting carefully and fully understood what you want. I have rich experience of the web development using laravel and react js and so on. Especially I have the high skill of the SQL. More

$1250 USD in 20 days
(25 Reviews)
5.4
LiaoFang

Dear client. Nice to meet you. I've read you project description carefully and very interested. Let's discuss over chat and get started. Waiting your reply. Warm regards.

$1000 USD in 20 days
(10 Reviews)
4.5
rabhardwaj

I mainly work with API Integration project.I have passion about API. I have been in this field for more than 7 years. i have experience in C#,php,Perl,wordpress,Html,postgress ,Ubuntu,Crontab,Web Services, Rest Api, More

$1250 USD in 20 days
(13 Reviews)
4.6
ayesha0124

Hi there, I have checked the details. I have rich experience with MySQL, Payment Gateway Integration, PHP, Software Architecture, SQL. Please initiate the chat so we can discuss this job in detail.

$1250 USD in 12 days
(5 Reviews)
4.0
Geniusteam

Hello, Can we discuss in detail ?Do you have any timeframe? We welcome you to join hands with us as we think we are capable enough to start this project and we give you surety of answering all your queries. W More

$1250 USD in 18 days
(3 Reviews)
4.1