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. Dmitry P.

    Dmitry P.

    Senior Ruby On Rails full stack developer

    Poland - Last active: 1 day ago - Tests: 1 - Portfolio: 2

    I have perfect 5 star rating at another freelance site (elance.com) as well - http://goo.gl/A9OgE1 I've written my first program when I was 5 years old, for 9 years I'm doing it as my profession. I've started with PHP but for purpose of more productive work switched completely to Ruby On Rails 4 years ago and mastered my RoR skills for dozens of projects since then. I'm not afraid of challenges, very self sustainable and motivated, always deliver on time. My skills are: Program languages: Ruby On Rails, Node.js (for high load backends) Code management: Github / gitlabs Databases: Mysql, postresql, mongoDB Deployment: Heroku, Capistrano, Docker, Debian-based linux distros Frontend: HTML5, CSS3, HAML, LESS, SASS, Twitter Bootstrap Javascript: Deep knowledge of pure JS, 9 years of experience with jQuery, dozens of plugins, can work with Angular.js, backbone.js (but not specialized in) Experience with API: Paypal, Twitter , Facebook , Google, Google Maps, Shopify, Netsuite, Constant Contact etc. Issue tracking and communication systems: Redmine, Github issue tracker, slack, basecamp Here are my latest project built by me: Huge highload online marketplace - http://goo.gl/oElo0L Shopify and constant contact integration - http://goo.gl/xoU02t Site monitoring solutions - http://goo.gl/dKwaej Unique project to stresstest websites - http://goo.gl/cFhrUD

    $45.00 /hr
    1,059 hours
    5.00
  2. Sergiy I.

    Sergiy I.

    Middle Android/Java Developer

    Ukraine - Last active: 1 month ago - Tests: 9 - Portfolio: 16

    I have 5 years of experience in software development. I have understanding and knowledge of object-oriented approach, software engineering principles, and concepts. Extensive experience in commercial Android application development. Explicit knowledge of mobile device architectures and mobile development platform. In-depth knowledge of Android OS, interactive application development and memory management. Worked with all common Android frameworks and APIs: - Very thorough software architecture and API design skills. - Geolocation (GPS), google maps, places API; - Web Sockets, WebRTC, faye; - Camera, Bar code scanner, State ID scanner; - GCM (Google Cloud Messaging); - Databases (SQLite), ORMLite, ActiveAndroid; - Notifications, broadcast receivers; - Social networks integration(Facebook, Google+, Twitter...); - REST API, cookies, managing sessions; - Custom UI elements. Excellent problem solving, communication, and collaboration skills. My maturity and practical experience will be of great benefit to you.

    $33.33 /hr
    15 hours
    5.00
  3. Oleg Batishchev

    Oleg Batishchev

    Magento Jedi / Senior Web Developer / Consultant

    Russia - Last active: 7 days ago - Tests: 6 - Portfolio: 9

    Hello dear customer, Yes, I'm not wrong, cause after read that you will wanna to hire me ;) Well, now seriously ... I am a highly experienced web developer who has primary direction of activities in e-Commerce web-developing, in that case it's a Magento area. I'am an adept of Magento and if you don't know what is it and you wanna e-commerce site you have to contact with and I will explain how is Magento awesome. I have 3 years experience in Magento and 9 years total in PHP developing with an MVC, different CMS (Wordpress), frameworks (Yii, Zend) and other. I always stick to the coding standards and follow the best practices to provide seamless, readable and reliable code. Besides developing I have some administration skills to manage servers, automate routines and can improve performance of Magento backend and frontend as well. Also I can setup the server from a scratch. I prefer a stack for Magento consists of: Nginx, Php-Fpm, Redis, Apc, Mysql 5.5 (5.6) (Percona better), SOLR/Lucene/Sphinx. I prefer do not install any control panels but if required I would prefer ISP Manager 5 Lite. Magento related Experience and Services - Optimization, load improvements, speed up - Extension development and customization - Troubleshooting - Tweaks & tricks - Bulk importing. Do you have 100k products? It's not a problem - Store migration - AWS, Rackspace building an architecture of you infrastructure - Core upgrade - Magento recurring support - Bug/error fixing - Theme design and customization - Consultation - Code review I also have some basic skills in the desktop programming (C#) and some Photoshop skills. I'll be glad to new acquaintances and long-term cooperation. I have a team of developers and every day we are expanding. Just hard to write all things what I can do. I am easy learnable for new stuff (frameworks, custom systems, foreign code). My strong side is a backend developing and have a good knowledge of a frontend side: - HTML5/CSS3 - Bootstrap - jQuery - Ajax - WebSockets, Long polling - Prototype - ExtJS - Google API, Yandex API - many other things that I can't remember at this moment. Also in a less degree Angular, Backbone and other frameworks/libs. Communication Channel : Skype/Whatsapp/Email/Phone I have listed only a little part of my portfolio cause I have many jobs completed and I can't add every job to profile.

    $45.00 /hr
    1,164 hours
    4.98
  4. 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
  5. 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
  6. Jay D.

    Jay D.

    Full Stack API Developer ( PHP/Javascript/MobileBackend )

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

    I work in python and PHP since 2009. And obsessed with simplicity of python and loose coupling of PHP. Specialized in web on top of PHP/Apache/Linux stack My skill set include developing REST/SOAP APIs, creating systems from ground, Working in a team for collaborative development, following agile paradigm ( sprints/stories ) Also, Experience with AutoResponders and Email Marketing API Integrations, Wellness APIs API Integrations: 1. Infusionsoft with Other Internal system 2. Salesforce API ( Apex/REST ) 3. QuickBooks API 4. Google Analytics Real Time API 5. API for Mobile Backend 6. YELP API 7. FourSquare API 8. Stripe API for payment integration Skills: Client-side: Jquery,ExtJS,bootstrap.js Web: PHP5, MVC,Web2py, django Database: MySQL/MSSQL, MongoDb Mobile: Jquery Mobile, Phonegap Data mining: PHP Curl,Python -BeautifulSoup,lxml, php-query System administration: Bash and Perl anscripting *NIX: Debian/Centos PMS: Basecamp, activecollab, rally, pivotaltracker Version Tracking: SVN/Git Github: https://github.com/dave-jay Proficient in creating custom JS based chat-clients. If you are an marketing/development company in US/UK, and looking for long term remote team player - i shall be best fit with my 1400+ hours of experience in working as remote team player.

    $8.00 /hr
    2,717 hours
    4.62
  7. Vijay singh R.

    Vijay singh R. Agency Contractor

    Expert in TWILIO/SMS APIs/C#/Asp.Net/DNN/PHP/Laravel/Zoho/HTML5/CSS3

    India - Last active: 4 days ago - Tests: 8 - Portfolio: 8

    A results-driven, customer-focused, articulate and analytical Software Engineer . Strong in design and integration problem solving skills. Expert in Twilio,NopCommerce,C#,VB.net,ASP.NET 3.5/4.0/4.5, MVC 4.0, WCF, SQL Server 2000-2008-2012, JavaScript, HTML, AJAX and web 2.0 best practices.Expert in working on payment gateways like PayPal Integration and Various API integration. I also have hands on experience in the following areas: MS Technologies, Ajax, Jquery, OOPs, and software design. •Worked in technologies provided by .Net Framework like Web applications, ASP.NET, AJAX. •Have worked on various market standards and followed best practices like XML, CSS, JavaScript, Jquery. •Have worked on web application that follows 3-tier architecture. •Good experience in Database design and SQL Server 2005 including developing stored procedures, taking database backups and restoring them. •Having good skills in converting business problems into technical solutions. •Having good ability in learning new things and applying them at work. •Having good experince in communicating with clients and understanding requirements. •Having good skills in team management, distribution of taks, project management.

    Associated with: Kindlebit Solutions Pvt. Ltd.

    $22.00 /hr
    1,616 hours
    4.94
  8. Tarun M.

    Tarun M. Agency Contractor

    Windows and Linux Server Support, Server / Web-Site Migration.. Etc...

    India - Last active: 3 days ago - Tests: 8 - Portfolio: 17

    I am working as Server Support Admin and Project Manager for past 10+ years, Work with many clients from different domains such as - Support, Marketing, Automobile, Manufacturing, Online Marking, etc... As Server Admin : 1. Server Setup - Windows Or Linux 2. Configure Server as Web-Server 3. Configure Control Panel Such as Plesk, cPanel, ISP, DirectAdmin, Webmin, zPanel, etc. 4. Configure PHP, MySQL, .Net, MSSQL, etc on server 5. Provide support to end clients on all there requirements. As Project Manager : 1. Manage a team of Designer 2. Manage a team of Developer 3. Working on ASP, .Net, WordPress, CI, Zend, CakePHP, MySQL, MSSQL, Joomla and other technology. 4. Working on Bug Fixing projects also.

    Associated with: Acentria Technologies Private Limited Agency

    $12.00 /hr
    1,210 hours
    4.95
  9. Sergey I.

    Sergey I. Agency Contractor

    CUSTOM PHP | MySQL | HTML | CSS | JavaScript | jQuery EXPERT

    Mexico - Last active: 20 days ago - Tests: 7 - Portfolio: 12

    "What we require is not the thermometer to show there is a fever, We need doctors to heal it" 'If you think it's expensive to hire a professional to do the job, wait until you hire an amateur.' EXPERIENCE MEANS NOTHING, EXPERTISE MEANS EVERYTHING. MORE THAN 12yrs OF EXPERTISE EXPERIENCE IN CUSTOM DEVELOPMENT. ✔ PHP Framework: CUSTOM, PHP5, Advance PHP, Outstanding OOP Programming, CodeIgniter, Yii ,CakePHP. PHPFOX, phpmyadmin, Ajax. ✔ Front-end: PSD to HTML, PSD to HTML5, HTML5, XHTML, DHTML., PSD to Wordpress, CSS3, SASS/LESS, Bootstrap, JavaScript, JQuery. ✔ Database servers: MySQL (Version 5x) ✔ API: Rest API, Mail chimp, Social Network. Twilio, JSON, Google Maps, AWS, All 3rd Party API Integration ✔ Payment Gateway Integration. ✔ Web servers: Apache, Nginx. ✔ CMS: Custom CMS, UMI.CMS, Net Cat, Magento, Wordpress, Drupal. ✔ E-Commerce: Custom E-commerce, Woocommerce, Magento, Prestashop, OpenCart, Shopify, BigCommerce. ✔ Backend: Admin panel, Cpanel. ✔ Application Development : IOS, ANDROID, WINDOWS. ✔ Version Control: SVN, Github, Bitbucket. ✔ Software Development: System Development, Database Development. ✔ SEO: White Hat, Link Building along with providing Monthly reports. ✔ Atlassian: Jira , HipChat ✔ Technical Support, Email-support, Chat development and Support, Web scrapping, Data Mining. Please find the mentioned link of my Curriculum Vitae/Resume for your kind perusal. http://sizit.pro/ Why hire me? ✔ Warranty Period of 2months ✔ Availability of 7 days/week. ✔ Good communication skills with fluency in English & Russian and Spanish (Basic) language. ✔ Experience in working in different time zones. ✔ Expect professional attitude, clean code, solutions that you won't need to fix after the project is finished, lots of ideas regarding your site/service, security audit, etc. Unsurpassed skills in fixing bad 'indian' code and salvaging projects by doing step-by-step full code refactoring without breaking live mode. For fulltime offers (more than 6+ months) there are nice options available: discount (up of 10$ per hour), 24hr support in case of emergencies (response time from 0 mins to 2 hrs). Give me a shot and We'll be long-term partners. -S.I

    Associated with: RedixGroup - web development

    $50.00 /hr
    701 hours
    4.74
  10. Naveen kumar J.

    Naveen kumar J. Agency Contractor

    Expert neurologist of Magento, Wordpress, PHP, jQuery, E-commerce

    India - Last active: 1 day ago - Tests: 5 - Portfolio: 2

    I have 7+ years of in-depth experience in the Web development field including the following technical areas: MAGENTO (E-commerce application, Customize Extensions) WORDPRESS (Plugins and Widgets development) LAMP (Linux, Apache, Mysql, PHP) Facebook, Twitter, LinkedIn API Javascript (jQuery) CSS Smarty FFMPEG PHPMotion Client Interaction Project planning Time estimation Leading a team Risk management Payment gateway Integration.

    Associated with: Perfection Infoweb Pvt. Ltd. - 100% Creative Solutions

    $20.00 /hr
    1,859 hours
    5.00