API Development Professionals & Consultants

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, 377 API Development projects are completed every quarter on Upwork.

377

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 4.66.

4.66
Last updated: May 1, 2015
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  1. Chase Gassert

    Chase Gassert Agency Contractor

    Web Expert

    United States - Last active: 12/08/2013 - Tests: 3 - Portfolio: 3

    I'm a CEO, Sr Programmer, Network Admin, Digital Automation Expert, Entrepreneur, Internet Innovator, and Coach. Building disruptive technologies that help pave the path towards a better future is my passion. Business and technology go hand in hand nowadays, and I'm able to blend a strong mix of marketing prowess, technological know-how, and business intuition into the jobs I work on.

    Associated with: Chase Ideas Agency

    $111.11 /hr
    28 hours
    5.00
  2. Waqas Ali

    Waqas Ali Agency Contractor

    Senior Java / JEE / SOA / Android / PHP Developer

    Pakistan - Last active: 4 months ago - Tests: 14 - Portfolio: 12

    Since 2008, I have developed a wide range of web applications using JAVA, JEE, SOA, Web Services, Spring, Hibernate, EJB3, JPA, Struts, JSF, AJAX, jQuery and WEB2.0 standards, Servlets, JSP, CSS3, HMTL5, Liferay, OpenESB, IBM BPM, Several open source libraries and APIs, Facebook and Twitter Integrations, DHTML, LAMP, and MySQL, MSSQL, CouchDB, Oracle. I have experience integrating with third party APIs and Web Services, Social Networks, LDAP, SVN libraries. I have experience in Online Payment Solution, Banking, Mortgage, Text Search, Product Data and Catalogs, POS and other portfolios.

    Groups: Application Developers Alliance

    Associated with: Softified Business Solutions

    $30.00 /hr
    961 hours
    5.00
  3. Kunal C. Agency Contractor

    Expert in SMS, Twilio, Nexmo, PHP, Asp.net, Web development & design

    India - Last active: 22 hours ago - 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

    $11.11 /hr
    450 hours
    4.97
  4. Arshdeep Kaur

    Arshdeep Kaur Agency Contractor

    iOS Developer

    India - Last active: 04/25/2014 - Tests: 2 - Portfolio: 1

    smartData Enterprises (I) Affiliate Proving quality innovative solutions to my clients. 3 years of extensive experience in developing Native apps for iOS apps.With great insight into User Demographic requirements and changing market needs, I am confident to take up challenges to develop the best quality apps.

    Associated with: SmartData Inc Agency

    $13.00 /hr
    63 hours
    5.00
  5. $24.44 /hr
    386 hours
    4.61
  6. Faisal A.

    Faisal A.

    PHP, Wordpress, Zend, CodeIgniter, API, Responsive

    Pakistan - Last active: 22 hours ago - Tests: 5 - Portfolio: 22

    I have been working for about 8 years in web development, web design and API integration area. Developed websites using PHP / MySQL / WordPress / Magento / CodeIgniter / Zend / .NET with front-end implementation in XHTML / Bootstrap / HTML5 / CSS3 / JQuery. As well as I'm very talented, detailed oriented, hardworking, self motivated, strong work ethics, responsible individual. During my experience I 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 and clean code. API Integration (SOAP, REST): Amazon, Volusion, Shopify, Whiplash, Etsy, GetResponse, Google Map API, QuickBook Online (QBO), QuickBook Web Connector, USP, FedEx, USPS, Adobe EchoSign, IDX (MLS Listing), MailGun, Facebook, Twitter, SAGE DataStream API Integration Application development areas: eCommerce website / Custom eCommerce website Order fulfillment Application Warehouse Management System (WMS) Website Optimization Multilingual implementation Scraping & Crawling website data Web services development 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, 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

    $14.44 /hr
    203 hours
    4.95
  7. Muhammad umer

    Muhammad umer

    Full-time Drupal Guru/ PHP/ FB App /wordpress/Joomla

    Pakistan - Last active: 28 days ago - Tests: 7 - Portfolio: 40

    Hello! I am able to develop your site by using all the latest web technologies but i will prefer Drupal. In addition, we have powerful business experts and engineers to provide business systems for customers, such as CRM, BPM, ERP. I offer high quality enterprise software/web development/maintenance/testing / deployment services using Web2.0 technologies and have 7+ years of strong experience in the following areas : - Drupal - Drupal Customization - Linux - JSP/ASP.NET/PHP/MYSQL - XML - AJAX - Flex - JavaScript, CSS, ActionScript, JQuery, Ext JS - Object Oriented Design - MS SQL, ORACLE ACCESS, PostgreSQL - Open Source technologies - Expression Engine, Wordpress, Joomla, Drupal, Vbulletin, LightCMS, CodeIgniter, Symfony, CakePHP - osCommerce, X-Cart, Zen-Cart, Magento, CS Cart, prestashop, open-cart - Website Design, PSD to HTML conversion, HTML5 In specially, I love Drupal. Thanks :-)

    $27.78 /hr
    43 hours
    4.58
  8. Bijo John

    Bijo John

    Freelance Expert PHP developer

    India - Last active: 8 days ago - 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
    4.81
  9. satinder singh

    satinder singh

    Wordpress,PSD TO HTML , PSD TO WP,PHP Expert

    India - Last active: 4 days ago - Tests: 2 - Portfolio: 2

    I am qualified and dedicated developer having More than 6 years of experience in Designing,Testing & Development. I have extensive experience with building custom Wordpress themes and modifying premium Wordpress themes (Themeforest.net, etc...). I also excel at PSD to HTML and PSD to Wordpress conversions using standardized frameworks like Bootstrap 3.0 and Underscores. We work hard to have clean, semantic, readable code. Have a look through my portfolio and you can see through all the different types of sites I've designed, I work to achieve a clean, relevant, and aesthetically pleasing look. Whatever the task, when you hire me you are guaranteed to receive top quality, precise work. And I am sure that you will Love my work. :) Framework's : CAKE, CODEIGNITER, Yii, ZEND, LARAVEL Frontend Design : HTML5 & CSS3, Twitter Bootstrap & Foundation Open Source : WORDPRESS, DRUPAL & MAGENTO HIGHLIGHTS : 100+ WORDPRESS WEBSITE BUILD & 120+ RESPONSIVE THEMES BUILD FOR CLIENTS Specialties: Professional experience in Wordpress, Drupal, PHP, MySQL, AJAX, Smarty, JavaScript, jQuery,XHTML, CSS, XML, OOP and Web2.0.

    $8.89 /hr
    3 hours
    5.00