API Development Professionals & Consultants

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, 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. Waqas Ali

    Waqas Ali Agency Contractor

    Senior Java / JEE / SOA / Android / PHP Developer

    Pakistan - Last active: 4 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
  2. Adrian Kalbarczyk

    Adrian Kalbarczyk

    Webapp prototype builder

    Poland - Last active: 09/23/2014 - Tests: 2 - Portfolio: 3

    Test your idea before spending thousands of $ on app development! I'm the author of Python and Javascript based full-stack framework that allows for building webapp prototypes in short time. Framework is battle tested and used also in big corporate projects such as collaboration software or CRM's. I helped tens of startups with validation of the idea, translating it into code and navigating the complexity of technology. #Bootstrap3 #Python #Javascript #websocket #amazon-aws

    $60.00 /hr
    0 hours
    0.00
  3. Leonard Leong

    Leonard Leong Agency Contractor

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

    Philippines - Last active: 8 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
    6,147 hours
    4.93
  4. Braden T. Agency Contractor

    Professional Project Manager

    United States - Last active: 1 day ago - Tests: 1 - Portfolio: 3

    I graduated from the University of Western Australia (UWA) with a Master’s in Business Administration (MBA) and also graduated, with distinction, with a Graduate Diploma in Business Administration (GDBA) from the same university. I also performed my undergraduate study at Vincennes University. I have a total of twenty years of experience in Information Technology (IT) and software development that includes a wide array of technologies, programming languages, platforms, and systems. Throughout my IT career, I have provided software development and IT consultancy services, formed a software engineering firm that created a Massive Multiplayer Online Role Playing Game (MMORPG), an on-line entertainment publication, a matchmaking site, a collaborative art software, and a social media art site. I was also a technical contributor for the development team of Undernet, an Internet Relay Chat (IRC) network that became popular in the 90's. Strategically located in the Philippines, I manage cross-cultural teams from different countries in Asia using my international management experience to bridge cultural and ethnic gaps to form cohesive and effective working groups (buzzword alert :-). When my time has allowed, I share my knowledge as a part-time professor with institutions such as the Australian Catholic University and the TIS in the Philippines. I am also an active member in Rotary Club.

    Associated with: Braden Temme

    $31.00 /hr
    0 hours
    5.00
  5. Sheikh Fahad

    Sheikh Fahad

    Experienced Software Developer

    Pakistan - Last active: 3 months ago

    With over 3 years of technical experience of customizing and development for Microsoft Dynamics CRM 2011/2013 and now 2015. Along with that I have been developing web applications on the top of .NET platform using ASP.NET with C# and VB.NET as a full-stack developer. I have also worked with Microsoft SharePoint and has developed solutions on the top of Microsoft SharePoint 2013. Now seeking for opportunities as a freelancer in the fields of Microsoft Dynamics CRM, ASP.NET and ASP.NET MVC and Microsoft SharePoint.

    $15.00 /hr
    0 hours
    0.00
  6. Binod Tamang

    Binod Tamang

    Software Developer /Apps(windows/android) developer /web api design

    Nepal - Last active: 10 days ago - Tests: 1 - Portfolio: 2

    I'm very passionate to programing that's why i choose it and started to talk with code.The way it talks to hardware/software,makes me happy all the time. If you're looking for a freelancer who can provide you with an excellent ,high class software,web application jQuery plugins and windows/android phone apps then you won't be regretting only if you try me. "Your satisfaction is my program" -and this is my theme.

    $25.00 /hr
    0 hours
    0.00
  7. Fernando Magno

    Fernando Magno

    Fernando Magno

    United States - Last active: 01/07/2014

    8 years or experience in Management Team, building small and big/hard projects. I opened my own company in order to get the most elaborate work and gain experience . I've worked with most programming languages ​​and types of projects . Technologies : OpenGL , C + + , C , OpenCV , OpenMPI , Microsoft HPC 2012 , HTML5 , JQuery , Android , Silverlight 5 , BizTalk 2007 , WCF , Linq Entity Framework , NHibernate , WPF , C # , Vb.Net , Java , WebServices , Asp . net, Asp.Net MVC , Javascript , VBscript , Visual Basic 6 , ActionScript , Asp3 , PHP , MySql , Reporting Services , ClickOnce , Google Maps , XML ( semantic network ) . net Compact Framework , complus , Distributed Systems Tools : Blender 3D , Team Foundation Server , Flash , Microsoft Expression Studio , Visual Studio 6/7/8/9/10 , Dreamweaver , Interdev , Eclipse , MySql , Access, SqlServer 2005 PostGIS , VirtualPC 2007 Team System , Photoshop , Oracle , Windows Server 2008 R2 , Chrome Developer Types of Projects: Image Processing , Geolocation , Parallel Processing , Artificial Intelligence , Distributed Systems , Management Systems for large-scale , SaaS , e- commerce , Websites , hardware ( Arduino ) .

    $27.78 /hr
    0 hours
    0.00
  8. Pardeep Singh

    Pardeep Singh Agency Contractor

    Expert Javascript and API Developer

    India - Last active: 2 months ago - Tests: 1

    I am developer with a 3 year of experience, keen to learn, Develop & update lot's of Applications which are successfully running over the web,Expert in data parsing Techniques, I deal with lot's of technologies like] Javascript,Jquery,JSON,Anguler Js,Scala,Knockout Js,Backbone Js ,Facebook API,Twitter API,Twilio API,Amazon API,ebay API,Paypal API,

    Associated with: CODEXTRO TECHNOLOGIES

    $5.00 /hr
    15 hours
    1.00
  9. Constante Gonzales

    Constante Gonzales

    Web Developer/ Programmer

    Philippines - Last active: 01/24/2014 - Tests: 5

    I am a software developer with over two years. I am located in the Philippines. My areas of expertise are DBA, POS, desktop application development, javascript developer and SQL administration. I also have extensive experience with PHP, C#, C++, VB.net, MSAccess, xammp and web development. I always commit to work and deliver highest quality of works to my client. I hope to receive the related works from any client in all over the world. I like freelancer world. I enjoy working on projects that involve a mix of web development, database management and programming.

    $7.00 /hr
    0 hours
    0.00