Browse API Development job posts for project examples or post your job on Upwork for free!

API Development Job Cost Overview

Typical total cost of Upwork API Development projects based on completed and fixed-price jobs.

Upwork API Development Jobs Completed Quarterly

On average, 307 API Development projects are completed every quarter on Upwork.


Time to Complete Upwork API Development Jobs

Time needed to complete a API Development project on Upwork.

Average API Development Freelancer Feedback Score

API Development Upwork freelancers typically receive a client rating of 4.64.

Last updated: October 1, 2015
Clear all filters

Devesh V.

Devesh V. Agency Contractor

Android Development, iOS Development, Graphic Design & Web Development

India - Tests: 13 - Portfolio: 7

I have over 6 years of extensive experience with PHP, MYSQL, CMS (Magento, Joomla, WordPress ), Extensions, Modules, Theme, Plugins, API's and frameworks (Zend, CodeIgniter, CakePHP). I have developed a series of web applications/solutions for the global clients. I worked in all stages of application development starting with the design phase, through development, testing and implementation. Core Skills: - Programming Language: PHP, JavaScript, JQuery - Web Designing: CSS3, HTML5, Adobe Photoshop, Logo Designing - Framework: Zend, CodeIgniter, CakePHP - Open Source CMS: Joomla 1.7 (creating/customizing all kinds of components, modules and plugins), VirtueMart, WordPress, Magento - Creating complex back-end management systems, including content management, e-commerce and communication interfaces.

Associated with: Pratibha Global Pvt. Ltd.

$14.00 /hr
15 hours

David Lormor

David Lormor

Web Development & Integration Expert

United States - Tests: 9

I'm a technology solutions expert based out of Birmingham, AL with extensive experience in Ruby, Javascript, and Google Apps. I've worked in both front-end and back-end frameworks including Ruby on Rails, EmberJS, AngularJS, and more. I specialize in all stages of the application development lifecycle with a focus on planning, architecting, and developing applications. I also have developed integrations with many third-party systems including Facebook, Google Apps, Twitter, and Mailchimp among others. Furthermore, I've been certified as a Google Apps Deployment specialist and have a deep knowledge of implementing Google Apps within an organization and finding ways to integrate its tools with existing workflows. I'm available for long and short term projects and can fill a variety of roles including project manager, architect, consultant or developer.

$120.00 /hr
0 hours

Bijo John

Bijo John

Freelance Expert PHP developer

United Arab Emirates - Tests: 1 - Portfolio: 5

I am a Freelance Web developer from Kerala, India with 7 years of experience, have expertise in a wide range of Web Technologies including web application development, content management system, API integration etc. My expertise are PHP, MYSQL, Joomla,Drupal, WordPress, OpenCart, Codeigniter, jQuery, HTML, API integration, Facebook and other social media integration. I developed Static websites (using HTML, HTML5, JavaScript), Dynamic website (using XML, PHP, MySQL, Content Management System (CMS) like WordPress, Joomla) and custom e-commerce website along with open source e-commerce ( using opencart, zencart, magento). I have a very good experience in opencart customization, opencart template integration, opencart module development , fully customized e-commerce website development, fully responsive website designing and more..

$11.11 /hr
0 hours

Sheikh Fahad

Sheikh Fahad

Microsoft Dynamics CRM Technical Consultant, ASP.NET MVC Developer


With over 3 years of technical experience of customizing and development for Microsoft Dynamics CRM 2011/2013 and now 2015. Along with that I have been developing web applications on the top of .NET platform using ASP.NET with C# and VB.NET as a full-stack developer. I have also worked with Microsoft SharePoint and has developed solutions on the top of Microsoft SharePoint 2013. Now seeking for opportunities as a freelancer in the fields of Microsoft Dynamics CRM, ASP.NET and ASP.NET MVC and Microsoft SharePoint.

$12.00 /hr
0 hours

Faisal A.

Faisal A.

Expert in PHP, APIs, Codeigniter, Wordpress, Zend

Pakistan - Tests: 4 - Portfolio: 26

100% client satisfaction is my motto. I have been working for more than 8 years in web development and API integration. Developed websites in PHP / MySQL / MVC / OOP / WordPress / CodeIgniter / Zend / Magento with front-end implementation in XHTML / Bootstrap / HTML5 / CSS3 / JQuery / REST / SOAP / JSON / XML. During my experience, developed web applications, eCommerce stores, CMS websites, APIs integration, web services , extensions and plug-ins. I love to take new challenges and provide high quality work. API Integration (SOAP, REST): Amazon, Volusion, Shopify, Whiplash, Etsy, GetResponse, Google Map API, USP, FedEx, USPS, Adobe EchoSign, IDX (MLS Listing), MailGun, Facebook, Twitter, SAGE DataStream, QuickBook Online (QBO) and QuickBook Web Connector APIs Integration. Professional skills: PHP 4, PHP 5 (OOPs approach), MySQL, Wordpress, WooCommerce, Magento, Zend Framework, Codeigniter Framework, MVC Architecture, Smarty Template Engine, JQuery, JavaScript, Bootstrap, HTML5, XHTML, CSS 3, .NET, SSRS, XML, json, CSV, Spreadsheets Web Servers & Tools: WAMP, LAMP, XAMP, Microsoft IIS, Apache, WinSCP Version controls: GitHub / GIT, TFS, SVN, VSS Databases: MySQL, Microsoft SQL Server (2000 / 2008 / 2012), Oracle, MS Access Operating Systems: Windows Server 2003, Windows 7, Windows 8, Linux / Unix

97% Job Success
$20.00 /hr
1,044 hours

Stan Ostashewski

Stan Ostashewski

Microsoft Office, .NET Developer

Canada - Portfolio: 6

.NET expert with 15+ years of experience. Available during and after regular business hours. Mountain timezone. Over 50 solutions for MS Outlook, Excel and other MS Office applications. Was one of top MS Access developers in late 90s, maintaining expertise in migrating and supporting legacy MS Access apps. MBA degree. Expertise in implementing solutions for small business. As a software engineer, led a number of desktop application projects, smart clients to online systems, integration systems spanning multiple processes, service bus integration, cloud-based solutions with Microsoft Azure. Past projects include solutions for governmental agencies and large financial institutions in the US, UK, EU and Switzerland.

98% Job Success
$99.00 /hr
167 hours

Ravi D.

Ravi D. Agency Contractor

PHP / Web Design Expert

India - Tests: 9 - Portfolio: 35

I have over 6+ years of experience in various areas in Web Development. Excellent in Web Application using PHP5, Wordpress, CakePHP, Joomla, Magento , jQuery, Ajax, MySQL, MVC, SVN, cURL, OOP Concepts, and Design Pattern Experience. * In-depth knowledge of PHP with jQuery * Extensive experience with Object Oriented design and implementation * Ability to function independently * Strong problem solving and analytical skills * Have a high level of attention to detail * Service Oriented Architecture * In-depth Relational Database design and development experience * Efficient, effective and timely I also have an experience in the following areas: - JSON, XML - MsSQL - Paypal,SagePay,Stripe,Wirecard, Integration -Infusionsoft Integration - Social api's.

Associated with: NNC Infotech (P) Limited.

89% Job Success
$10.00 /hr
3,493 hours

Kunal C. Agency Contractor

Expert in SMS, Twilio, Nexmo, PHP,, Web development & design

India - Tests: 1 - Portfolio: 17

Over 8 years of experience. Developing and providing solutions for Bulk sms website software, Text messaging software, PHP, Asp.Net, Wordpress, Android, C#, HTML, CSS, Photoshop, JQuery. Twilio, Nexmo, Trumpia wlw design, 2 way sms web apps, Internet mobile marketing, SMS to E-mail, E-mail to SMS, SMS scheduling/recurring, Keyword campaigning, Group messaging, Manage contacts, Web Designing, Volusion Ecommerce, Paypal integration, white label site design, sms gateway integration, responsive mobile websites. and Twitter, Facebook integration.

Groups: Twilio

Associated with: Xpertech Technologies

90% Job Success
$11.11 /hr
454 hours

Disha Vaidya

Disha Vaidya Agency Contractor

Experienced developer and designer PHP | Wordpress | Joomla | CSS | HT

India - Tests: 3 - Portfolio: 1

I provide the complete solution to the client from Website design, development to deployment to the server. I am expert in solving bug fixes in WordPress Plugin, Themes, Ecommerce Website, Shopify, WooCommerce. Contact me if you would to meet the project deadline. I am quick and fast.

Associated with: TechInfini Solutions Pvt. Ltd.

89% Job Success
$13.00 /hr
1,085 hours