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

341

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: June 1, 2015
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  1. Maxim Vorobey

    Maxim Vorobey

    Senior Software Engineer/Architect

    Russia - Last active: 12 hours ago - Tests: 3

    I am a web application developer specializing in PHP/JS with 15 years of experience. strong OOP knowledge, MVC etc php, mysql, html, css, less, js, coffeescript twitter bootstrap, jquery, backbone.js, angular.js ajax, json, xml C/C++/Objective-C (just for fun) load balancing, big data, high traffic data scraping, data parsing saas, soap, rpc, rest phpunit, phpspec, tdd, bdd, xdebug symfony, symfony2, zend2, doctrine2, bitrix mysql, postgre, mongo (clustering, replications) memcached, redis, rabbitmq, sphinx ubuntu/debian/centos/archlinux/osx nginx, lighthttpd, node.js, apache2 git, mercurial, svn opengl, glsl api: paypal, facebook, twitter, livejournal, vkontakte, jira, mailchimp, mandrill, zendesk, amazon aws agile/scrum: jira, redmine https://github.com/n3b

    $69.00 /hr
    2,418 hours
    5.00
  2. Alexander Kozlov

    Alexander Kozlov

    Top level professional Architect and SW engineer

    Russia - Last active: 1 month ago - Tests: 21 - Portfolio: 5

    Make things done! I'm a professional C/C++ developer with more than 12 years of experience. I have been working both for a companies from Fortune 500 list, and a small local companies. My core competency lies in the world of mobile applications, SaaS and PaaS, desktop software and games development. I love to do my work right and really enjoy being respected for the things i do.

    $55.56 /hr
    1,772 hours
    5.00
  3. Tanmoy S.

    Tanmoy S.

    Web Developer | Android Developer

    Bangladesh - Last active: 12 hours 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
    1,181 hours
    5.00
  4. Aldrin L.

    Aldrin L.

    Architect, Backend Engineer (Scala, Java, Hadoop)

    Brazil - Last active: 6 days ago - Tests: 12 - Portfolio: 1

    Over the past 15 years I've worked with projects ranging from Startups to Fortune 100s. From C++ to Scala, past assignments involved: - Protocol Design in C++/Delphi - Java API Publishing - Maven Plugin Development - Distributed Systems using RESTful backends - Scala / Akka Design - Jenkins Plugins Writing On a daily basis, I spend between Systems Architecture, Build Planning, for Hadoop and Restful Backends, specially under Amazon Web Services. Oh, I'm also a Cloudera Certified Administrator and Developer. Favorite platforms include Scala, Python and General Java. See my full profile for more descriptions and feel free to browse my github and bitbucket profiles at the addresses below: http://github.com/ingenieux http://bitbucket.org/aldrinleal Favourite customers involve pragmatic teams, with contant online presence, and direct involvement with the end customer, and a problem involving legacy and the next generation Feel free to discuss our next project - I'm always looking for the next challenge!

    Groups: LoginRadius, Microsoft Certified Professionals

    $55.56 /hr
    3,112 hours
    4.82
  5. Daria G.

    Daria G.

    Back-end and front-end dev and photographer

    Ukraine - Last active: 3 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
    1,797 hours
    4.61
  6. Yogesh Trivedi

    Yogesh Trivedi

    Magento Expert Developer / Magento Designer / PSD to Magento Template

    India - Last active: 12 hours ago - Tests: 16 - Portfolio: 5

    I’m Professional Magento Expert with having 7 years of overall experience and 5+ years of core Magento Design, Development, Customization experience. With all this skills and worldwide eCommerce merchandise experience I’m became of Magento consultant where I can guide you through all the process of Magento, I’m always updated with all its news which I am using to deploy the best solutions for my clients. I’m oDesk Magento Verified Developer - https://www.odesk.com/contractors/?g=odeskverifieddevelopers&q=magento I’m a team player where I can support you to manage and hire best remote team for your eCommerce project playing role of Consultant and I believe its worth to have a consultant for project who have ability to develop and design robust solutions. My approach starts from understanding the business concept along with the requirement which is making me to understand the whole scenario very quickly. I've working experience with Core PHP, WordPress, Joomla, Prestashop but I only like to work with Magento eCommerce as it’s my core and professional expertise and eCommerce is my robust and attractive topic always. Below are my expertise with Magento: Magento Front end design and Development Magento Back end Development Customized Magento Extension Development Complex Coding Third Party API / Web Services Integration Payment & Shipping Method Development and gateway Integration Purchased Template Installation and Integration Magento Template Design from scratch PSD to Magento Design PayPal Payment Method and API Expertise Magento and third party data transfer bridge I can communicate/hold interview via oDesk, have good communication skills, comfortable to talk and chat over Skype, Hangout or Phone.

    Groups: Application Developers Alliance, BigCommerce...

    $38.89 /hr
    2,117 hours
    4.95
  7. Ben Chan

    Ben Chan

    The API Consultant

    United States - Last active: 4 days ago - Tests: 1 - Portfolio: 6

    I have lots of experience building, documentation, and interfacing with APIs. This is my consulting rate, which generally only requires an hour or two of time per project. I've created this account specifically to manage my consulting opportunities. I do the majority of my work on Elance, but I believe there are lots of great opportunities on ODesk as well. If you need a quick consultation to help solidify a business plan, please do not hesitate to contact me here!

    $100.00 /hr
    2,189 hours
    4.91
  8. Dimitar A.

    Dimitar A.

    WordPress Themes & Plugins Developer

    Macedonia - Last active: 5 days ago - Tests: 14 - Portfolio: 21

    I am available and motivated to work on any project involving the WordPress platform, PHP or JavaScript. Have also passed tests like WordPress and PHP with flying colors and hold the 1st place with Bootstrap. Over the past 9 years I have been involved in a wide range of projects - from websites to applications and integrations. These included Wordpress platform, Magento, Zen Cart, Facebook apps, flash-based applications, custom-made web sites, tools or applications made from scratch with PHP, JavaScript, Ajax and Jquery, Cron jobs, GIT, SSL etc. Recently have been working with open-source scripts like Font Awesome, Columnizer, FitVids and others. I have WordPress.org submitted and approved WordPress plugins. I earned the gold medal on oDesk and have passed many other tests like PHP, JavaScript and WordPress with flying colors. I have 1700+ logged hours and 60+ jobs in my work history. I am excited to meet new people, learn new things and work on challenging projects!

    Groups: Bluehost Developers and Designers, Crossrider

    $49.00 /hr
    1,776 hours
    4.77
  9. Eugene A.

    Eugene A.

    PHP/HTML5/JavaScript/ASP.NET MVC developer/architect

    Ukraine - Last active: 16 days ago - Tests: 16 - Portfolio: 9

    Started as Asm and Delphi programmer over 10 years ago. But due to lack of interest from buyers to professionals in that sphere I have changed my specialization to web-developer and found that it's much more interesting. Over the last 9 years i worked for many companies all around the world. I have sucessfuly complete dozens of projects using wide range of technologies. I am a programmer and i do not stuck to any specific technology, Here is the stack of most common ones that i recently used: Concepts and patterns: OOP MVC MVVM MVVP TDD Languages: PHP5 C# JavaScript HTML5 Platforms: LAMP(PHP) WAMP(PHP) IIS(ASP.NET) Node.js DataBases: MySQL MSSQL PostgreSQL Cassandra Template engines: Twig, Smarty Razor Frameworks: Zend Symfony2 Silex Fatfree Yii PhpUnit Angular.js Knockout.js Backbone.js Jasmine ASP.NET MVC5 Libraries: jQuery Mootools Bootstrap D3 three.js CI: Jenkins ApacheAnt PhpMD PhpCS Tools: Git GitHub SVN Jira Redmine I also worked as teamlead in middle-sized and large projects. I have a nice experience building startups from the scratch, starting from team assembly and ending with project deployment and CI. I do not take fixed price assignments.

    Groups: ebay

    $70.00 /hr
    4,686 hours
    5.00
  10. Dejan Noveski

    Dejan Noveski

    Software engineer

    Macedonia - Last active: 15 days ago - Tests: 3 - Portfolio: 1

    I’m a passionate software engineer of 6 years, with knowledge and experience in prototyping, developing and deploying web applications, web services and platforms powered by the popular Python frameworks - Django, Flask, or PHP and PHP frameworks. I also have considerable experience - Building standalone desktop applications, utilities, system and automation tools. - Building mobile web services with offline support, syncing and data packaging to preserve bandwidth efficiency. - Implementing enterprise-level search and matching engines with Apache Lucene / Solr. - System administration and bash scripting. I work very quickly and go to considerable lengths to ensure that every job I undertake is delivered to my clients’ complete satisfaction. I’m constantly learning, and I’m always interested in taking on new challenges. Whatever your software needs are, I’m confident I can help you. References available. Specialties: Python, Django, Flask, Werkzeug, Pylons, SQLAlchemy, HTML, HTML5, CSS, CSS3, JavaScript, PHP, Solr, Lucene, Apache, Nginx, PostgreSQL, MySQL, Linux/FreeBSD administration, Web services, GIS, Geocoding, Vim, VimL, Git, Mercurial.

    $33.33 /hr
    1 hours
    5.00