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

337

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 4.65.

4.65
Last updated: August 1, 2015
Clear all filters
  1. Leonard Leong

    Leonard Leong Agency Contractor

    Sourcing Expert | Web Marketer | Binary Options Trader | Web Developer

    Philippines - Last active: 18 hours ago - Tests: 16 - Portfolio: 5

    Ambitious, energetic, strong-willed, charismatic, organized, creative, thoughtful, and passionate leader who plans and execute innovative solutions that paves the ways to win-win situations. Experienced in leading a complex organization that has a distributed workforce as a majority of its staff in providing world-class cost-effective services to a diverse clientele that includes: Automobile Dealerships, Marketing Agencies, Book Publishers, Law Firms, Event Planners, Coffee Retailers, etc. If you're looking for a professional whose goal is to provide clients cost-effective solutions for their business processes, then please feel free to tell me how I can be of service.

    Associated with: ROO Agency

    $9.99 /hr
    6,495 hours
    4.93
  2. Muhammad umer

    Muhammad umer

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

    Pakistan - Last active: 3 months 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
  3. Hamdan A.

    Hamdan A. Agency Contractor

    Experienced Web Developer

    Palestinian Territories - Last active: 10 days ago - Tests: 4 - Portfolio: 5

    My objective is to find a long term contract with a company who needs a rock-solid PHP/LAMP programmer. I have been a key contributor for several high-volume e-commerce websites over the past 10 years. My work has included open-source PHP5+ frameworks, such as CodeIgniter and Laravel. I am guru-level in HTML, CSS, Javascript, AJAX and Jquery, various payment gateways such as Authorize.net, Paypal, Plimus as well as other CMS and e-commerce systems including WooCommerce, eCommerce and BigCommerce. I also have experience administering Apache, Nginx, SVN, MySQL, Linux, SSL, etc... My strengths are innovative thinking, resourcefulness, flexibility to accommodate your time zones, efficient code and ability to solve the most difficult tasks using the simplest solutions. Here is a list of all skills that I am very good at: ✔ Native PHP Development , Organised , OOP , and Commented clean code. ✔ WordPress: WooCommerce, BuddyPress, bbPress, Genesis, OptimizePress, ClassiPress, Thesis, PageLines, Gravity Forms ✔ e-Commerce: Woocommerce, Magento, Prestashop, OpenCart, Shopify, BigCommerce, Spree ✔ Front-end: HTML5, CSS3, SASS/LESS, Bootstrap, Javascript, jQuery, Angular. ✔ Node: Express, Meteor, Sails ✔ Python ✔ blade , Jade , Smarty ★ love Your Work means You Are Special ! ★ Available to work on big projects, on-going projects , and quick modifications. Please feel free for a friendly talk

    Groups: Bluehost Developers and Designers, Corona Labs...

    Associated with: PalPHP

    $90.00 /hr
    450 hours
    5.00
  4. Inderpreet S.

    Inderpreet S. Agency Contractor

    Web Programmer

    India - Last active: 5 days ago - Tests: 9 - Portfolio: 15

    I have been developing and managing web applications since 2011 which includes quite varied expertise – creating e-commerce platforms, blogs, 3rd party CRM's integration, personal and professional sites etc. I work mostly with all the well-know frameworks (Yii, cakephp,laravel, CodeIgniter), CMS's (Wrdpress, Drupal, Joomla), api's like shipping, payment gateways, many more api's, CRM's like Infusionsoft & salesforce development and management, facebook clone script Phpfox, custom modules & softwares in php/HTML/CSS/JS programming languages. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business. Alway delivered a high quality of work. I am reliable professional. My main working principles - high quality of work and strict adherence to the deadline. always online: inderpreetchakkal@gmail.com skype: byichakkal

    Associated with: BrilliantMind Soft Solutions

    $20.00 /hr
    2,088 hours
    5.00
  5. Waqas Ali

    Waqas Ali Agency Contractor

    Senior Java / JEE / SOA / Android / PHP Developer

    Pakistan - Last active: 6 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
  6. Faisal A.

    Faisal A.

    PHP, Wordpress, Zend, CodeIgniter, API, Responsive

    Pakistan - Last active: 18 days 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
    271 hours
    4.95
  7. Sachin Nagpal

    Sachin Nagpal

    Top Notch Work Php| WP| HTML| Magento 2100 Hours 4.9 Feedback

    India - Last active: 18 hours ago - Tests: 7 - Portfolio: 7

    54 Successful Projects with 5 on 5 feedback 100% Committed towards Quality & Effective Communication Working TimeZone USA or UK I am here to poise to contribute unique blend of skills with 5 year of experience in development like PHP, WordPress, Word Press Plugin Development, Cake Php, JQuery, Ajax, Magento, Functional Testing along with commitment to excellence, to your firm value by ensuring that projects strategic mission and objectives within scope, budget, and schedule.

    $11.11 /hr
    2,074 hours
    4.87
  8. Haitham A.

    Haitham A. Agency Contractor

    Expert developer, attracted to complex, large and high impact projects

    Saudi Arabia - Last active: 1 month ago - Tests: 7

    * Expert API Developer (both for web apps, general purpose API's, and Mobile App back ends) - java & php API Experience: Facebook, Twitter, Google, youtube , GData, Klout, Topsy, Amazon Search , Amazon FPS (flexible payment system), SMSGlobal, TWilio, Mailchimp, Urban Airship (push notifications) ... etc * Expert Phonegap Mobile App Developer - iOS & Android - Front and Backend , complete application development services. * Expert Wordpress Developer - Classic sites, responsive sites, large blogs (over 1M uniques per month), woocommerce I have over 5 years of experience, over 300 hours on oDesk, a solid 5 star rating, and a mind focused on delivering the highest value possible to my clients. My rate is high but I work extremely fast. So the overall bill you will get will always be competitive, and you will get the highest quality candidate working for you. I am a full time freelancer and fully dedicated to delivering the highest quality services to my clients at a fair rate. Our values at TerraFirms LLC are Traction - Value - Leverage - Design Traction: Build products that people want to use Value: Deliver value in everything you do Leverage: Exploit technology to do 'superhuman' tasks managing complex or large systems, large volumes of messages, data, transactions or sales. Design: Simplify the design, be true to the brand identity, and focus on maximum usability

    Associated with: Terra Firms Agency

    $83.33 /hr
    1,129 hours
    4.60
  9. Ravi D.

    Ravi D. Agency Contractor

    PHP, Web Design Expert, Wordpress, Cakephp, Magento, Joomla.

    India - Last active: 18 hours ago - Tests: 9 - Portfolio: 16

    RECENT TEST: *****FIRST RANK IN WORDPRESS TEST*****. 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, Authorize.net Integration -Infusionsoft Integration - Social api's.

    Associated with: NNC Infotech (P) Limited.

    $10.00 /hr
    3,304 hours
    5.00
  10. Shridhar Awate

    Shridhar Awate Agency Contractor

    Technical Project Manager Java, Android, RoR

    India - Last active: 3 days ago - Tests: 2 - Portfolio: 1

    Having worked with leading IT services organizations, I have successfully lead the multiple projects and products with action orientation for focused results.I have a successful track record in industrial business development, combined with hands-on delivery experience working with multicultural teams and clients. Specialties - Action orientation for focused results - Effective and efficient organization and planning skills - Analysis with appropriate decisiveness and leading the way - Sensitivity of stakeholders' needs

    Associated with: Ascent IT Solutions

    $24.44 /hr
    3,147 hours
    5.00