Payment Gateway Integration Freelancers

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Payment Gateway Integration Job Cost Overview

Typical total cost of Upwork Payment Gateway Integration projects based on completed and fixed-price jobs.

Upwork Payment Gateway Integration Jobs Completed Quarterly

On average, 53 Payment Gateway Integration projects are completed every quarter on Upwork.

53

Time to Complete Upwork Payment Gateway Integration Jobs

Time needed to complete a Payment Gateway Integration project on Upwork.

Average Payment Gateway Integration Freelancer Feedback Score

Payment Gateway Integration Upwork freelancers typically receive a client rating of 4.34.

4.34
Last updated: May 1, 2015
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  1. Christopher James

    Christopher James

    PHP Web App Developer: Any Framework, APIs and UI. 15+ years (USA)

    United States - Last active: 1 day ago - Tests: 6 - Portfolio: 12

    Since 1998 I have developed dozens of web applications focusing on a wide-range of industries including custom search engines, affiliate marketing, real estate solutions and worker safety. As an autodidact, I pride myself on learning new technologies and continually improving my skill-set. As a freelancer, I believe in professionalism, clean code and representing my craft to the highest degree possible. On the server-side, Laravel is my current PHP framework of choice, although I am comfortable working with Zend, CodeIgniter, Cake and Yii. For the database layer, I have 14 years of experience with MySQL. On the client-side, I prefer jQuery, Backbone and Twitter Bootstrap. Although I am not a graphic designer, I know my way around the Adobe software suite. I write standard compliant HTML5 and CSS3. I have an eye for useable, clean and obvious functionality. I have experience with many APIs, including Amazon, Box.net, Infusionsoft, Facebook, Twitter, PayPal, eWay, Authorize.net and Google. I can write APIs from scratch and give your application a RESTful interface. I am seeking opportunities to build custom web applications from the ground up or taking an existing code base and improving upon it.

    $110.00 /hr
    6,711 hours
    5.00
  2. Anton T.

    Anton T.

    MODx Developer / PHP / MySQL / JS / Linux

    Russia - Last active: 17 days ago - Tests: 9 - Portfolio: 22

    MODx Revo/Evo developer. Over the last 9 years of working in web developing industry. I have experienced as team working (including team leader position) as well as independent freelancer. Now scope of my professional interests range from light-weight web sites to highload portals and startups. In recent years I'm developing sites mostly based on MODx CMS/CMF, but i also worked with other frameworks: Zend Framework, osCommerce, UMI.CMS, Bitrix, WordPress, Joomla and about 3-5 self-made nameless CMS. Also I have strong expirience in integration of 3rd party applications, payment systems API (Card gateways, PayPal, SMS gateways, WebMoney, Yandex.Money, RBK.Money, Money[at]Mail.ru, Qiwi), websites optimization (according to GTmetrix and Google Page Speed Test). In addition, I possess high-quality 2 years expertise in software and web testing. At your service!

    $33.33 /hr
    1,253 hours
    4.98
  3. Tanmoy S.

    Tanmoy S.

    Web Developer | Android Developer

    Bangladesh - Last active: 1 day ago - Tests: 13 - Portfolio: 2

    Greetings. This is Tanmoy, computer science graduate, basically a programmer working with Web & Android application development. Web Development: I've strong knowledge on PHP/MySQL/JavaScript and frameworks on those like WordPress and Joomla. For MVC, I worked with PhalconPHP, Laravel & YII. My expertise is mainly on WordPress and PhalconPHP. I developed at least 800 WordPress based website which included usage of different themes, plugins, custom theme & plugin development, custom field/meta/taxonomy/cron etc. I'm very skilled in REST API based projects. I can develop API platform for you with JSON/XML response or SOAP API. Android Development: I normally develop application (not games) for Android. I'm highly skill in SQLite Database, HTTP/HTTPS/Socket connection, File, Media, In-App Purchase, Google Play Licensing, Camera, Location, Sensors etc. based projects. I use Java instead of third-party tools to provide excellence. Social Login Integration: I provide social login integration service both for web and mobile application. For modern app, you must need it to engage more users. For my expertise, dedication and hard work, I always got great feedback from client. What you're still waiting for? Just hire me to get your project done.

    Groups: Application Developers Alliance, AWeber...

    $33.33 /hr
    1,171 hours
    5.00
  4. Dmitry Snisarenko

    Dmitry Snisarenko

    PHP/MySQL developer with strong HTML/CSS/AJAX/JS skills

    Netherlands - Last active: 13 days ago - Tests: 8 - Portfolio: 12

    PHP 5.3 Zend Certified Engineer (http://www.zend.com/en/yellow-pages#show-ClientCandidateID=ZEND016150) Experienced and accurate developer to fit all your demands.For a last 8 years I've created a lot of websites and web services using PHP, MySQL, Javascript, xHTML and CSS. Working in a timely manner and on budget. Providing excellent scalable and secure object-oriented code and SEO-friendly valid and semantic markup. Familiar with large amount of webservices. I'm able to follow all your website needs and bring exactly what you need.

    Groups: Zend Certified Engineers

    $48.89 /hr
    5,883 hours
    4.77
  5. Simon Weingand

    Simon Weingand

    Senior iOS and Android and Back-end Developer

    Germany - Last active: 12 hours ago - Tests: 15 - Portfolio: 2

    Thanks for reviewing my profile As a creative and passionate professional programmer with 10+ years of experience. Major skills: - iOS, Android, Phonegap/Cordova(jQueryMobile, SenchaTouch, Ionic) - Objective-C, Swift, C/C++, Java, - PHP/MySql, Ruby on Rails, AngularJS, Node.js, Javascript, HTML, CSS, jQuery - Parse.com, Amazon, Heroku, MongoDB, RESTful API, AJAX, JSON/XML, RSS - Facebook, Twitter, Instagram, Google+, VK, Foursquare - Paypal, Stripe, In-app purchase - Google App Engine, Google Map Api, Google Drive, GPS, BLE, NFC, iBeacon, VOIP - Git, Bitbucket, Testflight

    $57.00 /hr
    1,098 hours
    5.00
  6. Chandan K.

    Chandan K. Agency Contractor

    Sr Developer in PHP, Wordpress, Joomla, Drupal, Magento, Authorize.net

    India - Last active: 12 hours ago - Tests: 12 - Portfolio: 9

    More than 10 years of experience in LAMP Stack. I have developed various site in LAMP stack using following opensource : Joomla, Wordpress, Drupal, CakePHP, CodeIgniter, osCommerce, Magento etc. - authorize.net certified developer - PSD to HTML5 conversion - PSD to Responsive HTML - PSD to Responsive wordpress theme. - Joomla Responsive theme - Joomla Developer

    Groups: Bluehost Developers and Designers, JomSocial...

    Associated with: Avya Technology Private Limited

    $40.00 /hr
    2,610 hours
    5.00
  7. Bilash S.

    Bilash S. Agency Contractor

    Ruby On Rails | TDD | jQuery | J2EE | Server Expert

    Bangladesh - Last active: 4 days ago - Tests: 3 - Portfolio: 8

    Over the last 6+ years, I have developed a wide range of websites using JAVA, ROR, and MySQL including sites for start up companies and small businesses. I am seeking opportunities to build websites from the ground up for you or your business.

    Groups: Engine Yard Ruby on Rails Professionals Network

    Associated with: BSquare Technologies

    $44.44 /hr
    3,513 hours
    4.99
  8. Philippe Perez

    Philippe Perez

    Senior Software Developper

    Switzerland - Last active: 12 hours ago - Tests: 4 - Portfolio: 3

    Overall , i have more than 15 years of development experience in multiple technical and human environment. For both start-ups and blue chip companies , i did contribute to the success of numerous projects , leveraging on my object oriented background , mainly in Java ( Swing , GWT , SmartGwt , Android ) Of course i am very knowledgeable in web technologies ( javascript / html / css ) and most of relational databases ( MySql , Oracle , SqlServer ..) , JPA persistence framework ( Hibernate ) Capable of communicating in English,French, and to some extent, German and Spanish , i am eager to take every challenge. As a developer , or as a lead developer, as i did before. Whether its about 'standard' web / mobile development , or advanced endeavor ( data mining , principal component analysis ) i am eager to take the challenge. Regards Keywords section for ODesk search smartgwt , 'SmartGwt' , GWT , lucene

    $50.00 /hr
    2,810 hours
    5.00
  9. Nimesh P.

    Nimesh P.

    Sr. QA Engineer-Expert Software Tester-MAC/Android/iOS/Web App QA Lead

    India - Last active: 1 day ago - Tests: 13 - Portfolio: 36

    ★ TOP 1% of Successful oDesk Freelancers (Certified) ★ ★ The Only QA Freelancer on oDesk having completed (more than 75 JOBS + 11000 plus HOURS + 5 STAR Rating) all together ★ ★ Ranked Top # 3 QA Engineer at entire oDesk marketplace ★ Logged 9000+ valid defects overall ★ ★ A Full time Freelancer & Certified Software Test Engineer ★ ★ 10 Years of extensive experience in Manual and Automated testing ★ ★ Plenty of experience in Agile/Scrum/Kanban/Lean methodologies ★ 100% client satisfaction ratio ★ ★ 75 % are repeated clients ★ ★ 100 % flexible, can work in any time zone ★ ★ The apps I have tested are in All Time Great/Award winning categories like Color Splash, Brainscape, Timeline 3D, Language Therapy, Gametime, etc.. ★ oDesk Top 10% in : ✔ Software Testing Test ✔ SQL Test, ✔ MS SQL Server Test, ✔ US/UK English Basic skills Test, ✔ English Spelling/Vocabulary Tests, ✔ Wordpress Test, and many more... ★ Devices available for Testing: ★ iPhone 6 (iOS 8.1.3) iPhone 5 (iOS 8.1) iPhone 4s (iOS 7.1.2) iPad 3 (iOS 7.1) Samsung Galaxy S5 (Android 4.4.4) Samsung Galaxy S3 (Android 4.3) Google Nexus 7 (Android 4.4.2) Windows XP/7/8 (All Browsers) Mac OS X (10.9.2) ★ I work in a unique way: You don't have clear requirement !!! No Problem, I don't need it. You are still preparing the specification !!! No Problem, I don't wait for that. You have a budget constraint !!! No worries, I would fit into it. You don't have any test cases/test plans/documents in place !!! No Problem, that's where I come into the picture. ★ ★ ★ GIVE ME YOUR APPLICATION, I'LL GIVE YOU THE DEFECTS. ★ ★ ★ Let me go through and analyze your application and, I would provide how to proceed with the testing, How effectively your application can be tested, I will come up with better test cases/ comprehensive test plans, important business and use cases and most importantly unique and incredible application improving and business fetching suggestions. My job doesn't end here. Once I verify the defects in all major browsers/OS, I log them in whatever format/tool you choose along the with the defects screenshots & videos. I won't leave you until I verify and close all the resolved defects. SO If you are looking for above skills and qualities then your search ends here!! If you still have some doubts, take a look at the feedbacks provided my valuable clients. I deliver what I promise, I do not promise which I can not deliver. Being a true professional, I dare to do whatever it takes to make my client's business successful and see his/her smile at the end of the day. I am sure we can do business! Cheers!

    $24.99 /hr
    11,433 hours
    4.95
  10. Hiep N.

    Hiep N.

    Expert on BOOTSTRAP,FLATUI,RESPONSIVE,CODEIGNITOR,WORDPRESS,MAILCHIMP

    Vietnam - Last active: 2 days ago - Tests: 4 - Portfolio: 21

    Nothing is impossible to me! This is my slogan. BOOTSTRAP,FLAT UI, RESPONSIVE, HTML5, CSS3, CODEIGNITOR,WORDPRESS,MAILCHIMP, CMSMS, WireProcess CMS, JQUERY, AJAX, Php/MySql, UI, Paypal-API is my full skill I am a Professional Web Developer and also a PROJECT MANAGER, I have been programming over 4 years and the past 3 years I've specialized in web development. I believe in quality and professionalism. I've experienced in Custom CMS, CodeIgniter, Bootstrap, Flat Ui, Responsive, Wordpress, CMSMS, WireProcess CMS, PHP/MySql, PSD, XHTML/CSS, HTML, HTML5, CSS3, Web Design, Jquery, JavaScript, Jquery mobile. I don't compromise with quality so that still I am learning for new technology and applying them for the best outcome. Most of my clients are regular and I believe in long term working relationship. So if you have a dream to own a wonderful website just pick me and I am here to provide you the best and effective support. We are very keen to make a very long term working relationship so quality and professional work is our main focus. Most of our clients are regular because we believe in quality not quantity. We always pay attention to our client and specification. So if you are looking for your website development just pick us and take the best quality of work.

    $33.33 /hr
    1,402 hours
    4.63