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. Topher L.

    Topher L.

    Specializing in Server Administration, Configuration, and Deployment

    United States - Last active: 1 day ago - Tests: 5

    I have been in the telecommunications industry for over 13 years and have worked as a consultant to major Fortune 500 companies in the past for both business and technology needs. I have a vast knowledge of anything that relates to the internet, both hardware and software realms and have worked on a variety of projects ranging from the simple to large scale transition ones spanning months at a time. I understand a business' need to get projects done right the first time and have always exceeded my clients goals. If they're not happy, I'm not happy. I have a dual bachelors degree from the University of Colorado at Denver in Business Information Technologies and Business Management. My Masters in Business Administration is in International Business and most IT skills I have picked up on my own or through various courses either online or at the local community college. I look forward to working with you and completing any projects you may have, from the quick fix to an entire server farm rebuild. I am also a word class back end programmer familiar with MySQL, Bash, PHP, Perl, and Python. Please, no front end design work, I don't have an eye for creativity (unless it's something simple of course). I look forward to working with you and any projects you may have for me.

    $39.00 /hr
    380 hours
    4.98
  2. Yogesh Trivedi

    Yogesh Trivedi

    Magento Expert Developer / Magento Designer / PSD to Magento Template

    India - Last active: 3 days ago - Tests: 16

    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
    2,092 hours
    4.95
  3. 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
    1,793 hours
    4.61
  4. Andrew B.

    Andrew B.

    Fullstack web developer

    Moldova - Last active: 4 days ago - Tests: 4

    I specialize in development of web-applications with various difficulty levels: from simple single-page applications to large scalable projects with public API and high-load. I prefer to use popular frameworks, native code. 1. About Me I started my professional way 10 years ago, having obtained C++ for Windows certificate. Fundamentals from strict C++ language helps me to learn new languages. I have good skills in Python, Lua and Bash for Linux and MacOS, C/C++ for Windows and Linux. I work with full-stack of technologies in web-domain: server-side setup, backend and frontend-development. Always document code with PHPDoc, leave detailed comments. Ready to use Git/Github, Mercurial, different error tracking systems. Last 3 years I supported projects in aviation, trade and copyright protection domain. Theretofore I managed a small web-studio, and that is why I have ideas about responsibility and of meeting deadlines from customer's standpoint. I have wide experience in project planning and never start working before all details and nuances are clearly specified. 2. Server-side and administration I use RedHat, CentOS, Ubuntu and Debian for a long time as OS for my servers. I know how to tune server to reach best practice in reliability, speed and security. Nginx and Apache web servers; caching; balancing; database replication; backups; creating access control policies; cPanel or Webmin software; creating FTP/SFTP file storages; personal mail and Jabber-servers; mail delivery systems; firewall and DDoS protection. 3. Backend I use PHP for backend-development and I know how to use development patterns, strong knowledges in OOP, inclusive PSR standards. I use Laravel, CakePHP, Symfony and CodeIgniter frameworks. At this moment I prefer Laravel framework for new projects, but it never was a problem to use any other framework: I have wide experience in code review and refactoring, even old-style functional or all bad-practices-inclusive code. I am perfect in relational DBMS. I have 6-year experience in MySQL and sure when to use MyISAM or InnoDB; indexes; correct queries; organize full-text search with/without Sphinx. Used PostgreSQL, MSSQL, Oracle and some exotic data sources. NoSQL-solutions like Couchbase, Redis, MongoDB or Memcached are also familiar to me. I have experience in using many public APIs: Facebook, Twitter, Google Maps, GData, Youtube, LeafletJS, OpenStreetmap, Mailgun, Mailchimp and lot of others. I know how to build public API using REST, SOAP, JSONP or any other custom XML-protocoll or low-level sockets. 4. Frontend HTML5, CSS3 and JavaScript. Prefer to use frameworks: Twitter Bootstrap, Animate.css, jQuery, AngularJS, require.js, underscore.js and lot of others for different purposes: caching, speed-up, web sockets, HTML5 API, Chrome applications and s.o. I like to develop user interfaces, widgets or any other useful and elegant UI-elements. My favorite pattern today is Single Page Application. I’m glad to share my knowledges and experience, and, of course, to apply them in your project.

    $33.33 /hr
    124 hours
    5.00
  5. Antoan M.

    Antoan M.

    Full stack IT, CTO level Startups consulting

    Bulgaria - Last active: 1 day ago - Tests: 13 - Portfolio: 5

    I have a PhD in Computer Science with 20 years of experience. I am architect and builder of a Enterprise Grade Platforms, that are designed using proven technologies, that ensures the platform will scale along with customer's business needs. It is the same technologies that are in use today in mission critical systems at companies such as Google, Facebook, Yahoo!.

    Groups: LoginRadius

    $70.00 /hr
    1,559 hours
    5.00
  6. Olivier Tisserand

    Olivier Tisserand

    Senior Software Architect

    Spain - Last active: 3 days ago - Tests: 1 - Portfolio: 1

    French Senior Software Engineer with a career structured in several axis : - Multi-system data processing architectures, Virtualization, Data centers design & Integration - Senior Software architect : Java, C#, C++, Ruby, RoR, Python, Oracle, SQL Server, MySQL. - Data mining solutions linked with SQL databases.. - Data acquisition systems and monitoring, Building Intelligence, Protocol handlers. - Statistics and Numerical analysis (R language, Eviews, Matlab, Scilab) - Artificial Intelligence and specific languages, with industrial applications. - PPC Statistics & API (Adwords, Adcenter) - Networking with a Wireless Internet Provider (Mikrotik specialist). - Business Intelligence With 25 years experience in France and Spain as Consultant Engineer in various business environment, able to handle and develop projects involving multiple environments and technologies.

    $33.33 /hr
    3,025 hours
    5.00
  7. Joshua B.

    Joshua B.

    Expert Amazon MWS, Laravel and Scraper Developer

    United States - Last active: 10 days ago - Tests: 3

    I'm an expert at PHP/Laravel, MySQL, JavaScript/jQuery, AJAX and Amazon MWS/AWS development backed by 13+ years of general coding experience. I'm familiar with a variety of marketplace integration APIs (eBay, Etsy, Google Shopping, etc) but my main expertise is with Amazon's MWS API. I'm highly skilled at automating processes for inventory listing/management and order/shipment data processing, as well as automated product matching (even by photo). I'm also skilled at integrating with DigitalOcean and AWS. I've worked with several development frameworks but my primary focus is on Laravel and AngularJS. The interfaces I develop to go with the underlying code are typically done in Bootstrap so they will be clean with an intuitive design (big fan of "Don't Make Me Think" style design principles). I specialize in automating websites by creating macros using GreaseMonkey/TamperMonkey. I am also proficient in the following: - Amazon's Product Advertising (formerly Associates/ECS) API - Inventory, order & shipment automation to/from diverse channels - Amazon Seller Central (including FBA processes) - RESTful APIs - Version control with Git and Mercurial - Creating web scrapers in PHP Goutte/CasperJS - Automating process of aggregating, manipulating and creating mashups of content I'm a rapid adapter so if any API or framework is outside of my present scope, I can usually integrate it into my knowledgebase/workflow on the fly in most instances.

    $77.78 /hr
    271 hours
    5.00
  8. Dimitar A.

    Dimitar A.

    WordPress Themes & Plugins Developer

    Macedonia - Last active: 1 day ago - Tests: 14 - Portfolio: 20

    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: 8 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. Orest K.

    Orest K.

    Senior System Architect

    United States - Last active: 1 day ago - Tests: 5

    I am a highly skilled senior developer with extensive development experience in system design, .NET technology stack including C#, ASP.NET, MVC, Web Api, SQL, Entity Framework. In addition I'm passionate about JavaScript and related technologies, namely AngularJS, Knockout, NodeJS, Express etc. I have Computer Science degree from one of the top Engineering school in US Few of my latest project listed below. Architected and implemented service oriented framework built on a variety of technologies including .NET, MVC , HTML5, ASP.NET Web API, Entity Framework,AngularJS, KnockoutJS, RabbitMQ, RequireJS and others. Designed and implemented Enterprise Single Page Application standards and led a team to successful project implementation using SPA. I have Computer Science degree from one of the top Engineering school in US. Please see my test score for my qualifications.

    $55.00 /hr
    127 hours
    5.00