API Development Professionals & Consultants

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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. Daria G.

    Daria G.

    Back-end and front-end dev and photographer

    Ukraine - Last active: 2 days ago - Tests: 2 - Portfolio: 1

    I specialize on Ruby on Rails and front-end development. In spite of the fact I have got a degree in International Journalism and Translation, I worked as QA and IT Sales for total of 3 years (from 2008) and then moved to web development from Jan, 2012. I have performed both back-end tasks (from basic CRUD to making simple APIs or server scripts) and front-end (building static websites from scratch or developing views with twitter-bootstrap). I believe the experience is formed with the quality of the projects, you have delivered, and not with the years of sitting in front of the laptop. Specialties: ruby 1.9.2+, Ruby on Rails 3.0+, linux and MacOS X environment, unix-shell, Git, SQL (SQLite, MySQL, PostrgeSQL), HTML, Haml, CSS, Sass, Less, twitter-bootstrap, javascript, jQuery Here is link to my github profile: https://github.com/amseledka I do photographs and various design tasks in my spare time, as well as help my friends with Russian-Ukrainian-English translations. My flickr profile: http://www.flickr.com/photos/37859578@N06/

    $33.33 /hr
    1,791 hours
    4.61
  2. Mohammad M.

    Mohammad M.

    WordPress, Responsive Design, HTML, CSS, JQuery, PHP, Bootstrap Expert

    Bangladesh - Last active: 14 days ago - Tests: 8 - Portfolio: 3

    Quality web Designing and Development is my main motto for my valuable Clients.Working with my clients is a great fun for me. I enjoy it. PHP & Mysql, JavaScript, Jquery, Ajax, Json, HTML5, CSS3, Photoshop cs3 are my base.I have worked with PHP frameworks and on many eCommerce sites. I have also extensive experience on developing WordPress themes and designing responsive layouts.

    $16.67 /hr
    744 hours
    4.97
  3. Joshua Harbaugh

    Joshua Harbaugh

    Experienced Front-end Developer

    United States - Last active: 3 months ago - Tests: 4 - Portfolio: 8

    I am a versatile front-end developer with solid experience in HTML5, cross-browser compatible CSS (using pre-processors like LESS and SASS), and progressive enhancement techniques with Javascript, jQuery and AngularJS, as well as, a strong focus in clean responsive design.

    $55.56 /hr
    126 hours
    5.00
  4. Rinesh Thakur

    Rinesh Thakur

    Web Design Web Developer WordPress Expert

    India - Last active: 1 day ago - Tests: 5 - Portfolio: 7

    Over the last 6+ years, I have gained a vast amount of experience in developing and designing eye-catching and modern websites. You can easily see this in my portfolio and extremely positive feedback below. I am an expert in WordPress, Photoshop, Flash, html, css, javascript and PHP language and deliver quality work on time - per each client's requirements. I also consult with a number of other web development and marketing firms to problem solve a number of web development dilemmas to create solutions. I work with corporate businesses from around the world including Australia, United States, U.K. Romania & New Zealand Many of my clients are long term, recurring clients, because of the skills, service and insight I provide.

    $20.00 /hr
    444 hours
    4.98
  5. Elvin alvian S.

    Elvin alvian S. Agency Contractor

    FullStack Ruby on Rails Developer with Responsive Design experience

    Indonesia - Last active: 12 hours ago - Tests: 4 - Portfolio: 11

    If you want to build an awesome web application, so you need to hire 2-3 developers. but you are only need to hire me, so i can build your Web Application (including, BackEnd(Ruby on Rails, CI) and FrontEnd(HTML5 Responsive, CSS3, jQuery, javascript framework, Create PSD framing layout, Design Web Apps to fit with your smartphone or any device ). And im available if you need to redesign your web apps. Im available as a Ruby on Rails Developer and FrontEnd Developer to Design your apps... And you can contact if you have any question or discuss about your idea. Also I can give you one week trial to see how your idea/app will work. Then we can make your application to MVP, and move it to live. Please feel free to contact me if you need me...

    Associated with: Nine Operation Dev

    $13.33 /hr
    1,867 hours
    4.72
  6. Sahibjot Singh

    Sahibjot Singh Agency Contractor

    Experienced Web/Graphic Designer, Web Developer in HTML/CSS, Wordpress

    India - Last active: 1 day ago - Tests: 14 - Portfolio: 10

    Over the last 3 years i have designed over 50 websites for different start up companies and big brands like Anti-Aging Company, Crystal Washington Capital Private Bank. My core competencies lies in: - Photoshop ( Web Designing / Graphic Design / Image Manipulation) - PSD to HTML/CSS - Wordpress - PHP - Third Party APIs I am seeking opportunities to build websites from ground up for you and your business. I am always up for the new challenges, assuring you to provide best possible solutions.

    Associated with: Algozign Technologies

    $7.78 /hr
    987 hours
    4.92
  7. Muhammad S.

    Muhammad S. Agency Contractor

    iOS and Android Development, Web Development, Graphic Designing

    Pakistan - Last active: 3 months ago - Tests: 9 - Portfolio: 17

    I am a dedicated Professional and love what I do. My 15 years’ experience and passion for work has enabled me to learn new techniques and hands-on experience with the modern technologies. I believe proper communication is an integral and vital part of any project. To ensure this, I am readily available almost 24/7 via Email/Skype/IM or phone. During the last 15 years, I have worked in a variety of IT roles and industry sectors (Web Development, Game Development, IOS Development, Android Development, Enterprise Services, Marketing, Market Research, and Business Development). My recent freelance work involved Development/Programming projects. I worked on various websites using MySQL and MongoDB and also built several APIs so other websites/applications can interact with them. I am also well aware about the responsive designs and I really like it when the websites can be easily scaled down to iPad or iPhone’s resolution since the number of mobile users is growing rapidly. Following are some of my key skills (tools/languages/technologies): • PHP, ASP • .NET, C#, Java) • SQL, Oracle, MySQL • Wordpress, Magento, Joomla • Codeignitor, YII, Zend • Objective-C, Cocos 2D, Cocos 2D-X, Box 2D, Unity 3D, Obj-C, OpenGL-ES, Unity 3D • HTML5 Games (Impact, Isogenic, Crafty, Quintus, Enchant, Melon, Lime • iOS and Android Development • Graphic designing • Games Development • Flash - ActionScript, Javascript, PHP, AJAX, jQuery • Bootstrap, jQuery, Prototype, Knockout,

    Associated with: 20THFLOOR TECHEASE

    $10.00 /hr
    20 hours
    5.00
  8. Rubeena P. Agency Contractor

    Web Master

    India - Last active: 04/19/2014 - Tests: 11 - Portfolio: 5

    I am Front End Developer of professional experience in the Open Source Technologies like HTML 4.01, HTML 5, XHTML 1.0, CSS2, CSS3, HTML DOM, JavaScript, Jquery and Responsive Design, Liquid Design, Twitter Bootstrap and worked with design implement in themes (Wordpress, Concrete5, PrestaShop). I believe in Pixel Perfect when i am working in Photoshop, at the same time i am so much aware with the web standards. I believe in quality work which satisfy the employer and contractor(me) both. I use the most recent web design standards and technologies, such as Responsive and Retina ready Web Design, Cross Browser HTML5 and CSS3 code to serve you better.

    Associated with: codeace

    $6.67 /hr
    534 hours
    4.52
  9. Daniel Sum

    Daniel Sum Agency Contractor

    Freelance PHP / Rich media developer / Web consultant

    Belgium - Last active: 10/22/2013 - Tests: 2 - Portfolio: 3

    www.sumdaniel.com Digital native, I began very young to code and to be passionate about the Web. I develop for more than 7 years with : - PHP Object Oriented and MVC programmation (back-end / front-end solutions) - frameworks like Laravel, Code Igniter, Symfony etc. - CMS like Wordpress, Drupal, Prestashop - API webservices like Facebook, Twitter, Google, Mail (Mailchimp, Mandrill), payment services (Braintree etc.) - HTML5 / CSS (with Bootstrap, CSS Grid etc.) - Javascript (JQuery, backbone.js, Ember.js etc.) - Action Script 3 / Flex development (basic) - Server configuration (Debian, Apache2, Nginx) I worked for many agencies (TBWA, Agency, Glucône, Com2B, Dasmuse etc.) and also for my own customers (Unicef, Oxfam, 87seconds, Credal etc.) within our collective of freelances which became Cherry Pulp SPRL in March, 2013. I am a self-taught, creative developer, and I have a customer-oriented vision. I accumulated many experiences on different project types. For example, National Lottery, European Parliament, Groupon, Unicef, Eni, Mini BMW, Ecover, ING, Bpost etc. If you have any requests of customized Web development based on a framework (Intranet, Extranet), SaS solution platform), installation of CMS Wordpress, Drupal, Prestashop or of consulting in programming, SEO, technological positioning multi-domain (Web App/Mobile App), don’t hesitate to contact me ♨ !

    Associated with: Cherry Pulp

    $48.89 /hr
    0 hours
    0.00