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.


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.

Last updated: June 1, 2015
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  1. Vitaliy Mykhaylovskiy

    Vitaliy Mykhaylovskiy

    Senior .NET Web Developer

    Ukraine - Last active: 07/04/2014 - Tests: 3

    Experienced in ASP.NET Development using Web Forms, MVC, Web API frameworks supported by different client JS libraries: ExtJS, jQuery, Knockout, Durandal, Angular. Good skills in C# .NET and related frameworks: WCF, LINQ, Entity Framework. Looking for new projects where modern web technologies can be used: SPA, service oriented architecture, REST API Full life cycle system experience: design, development, testing, optimizing, deployment and maintenance. Prefer design and development of solutions for business problems, that require recent Miscrosoft technologies. Able to lead and innovate.

    $33.33 /hr
    0 hours
  2. Richard Flosi

    Richard Flosi

    Experienced Web Engineering Generalist

    United States - Last active: 12/16/2013

    I've worked on literally hundreds of websites over the past 13+ years solving all kinds of problems using smart creative solutions to get a job done well. I am a full stack developer versed in a variety of languages, frameworks, databases, and web services. Currently, I enjoy developing Responsive Javascript Applications. I can make your website fast, intuitive, enjoyable to use, and flexible so that it works across all devices.

    $65.00 /hr
    0 hours
  3. Chris Harvey

    Chris Harvey

    Expert PHP Developer

    United Kingdom - Last active: 03/16/2014

    I have been writing code since I was 5 years old. I am an expert in PHP with experience with multiple frameworks including Laravel, FuelPHP, CodeIgniter, Symfony 2 and Zend. I also have experience with other programming languages including Ruby, Python and Objective-C. I am also very skilled with server setup, maintenance, deployment and scaling. I am currently a co-founder and CTO for a UK based startup which has recently received funding from VC's.

    $60.00 /hr
    0 hours
  4. Paul Whipp

    Paul Whipp

    Expert Software Engineer with Cloud, Django, Python and Database focus

    Australia - Last active: 05/12/2014 - Tests: 2 - Portfolio: 1

    For the past seven years I have successfully developed cloud applications, primarily using Python supported by Django and PostgreSQL or MySQL. My productivity is underpinned by degrees in both Computing and Psychology and by a successful track record of over twenty years developing successful software solutions for clients of all sizes. I am an excellent communicator. My favorite way of working is to use best practices with GitHub or similar, deploying updates daily to a staging or test site so that you can review the work and ensure that your expectations are being fulfilled.

    $77.78 /hr
    0 hours
  5. Sebastian Urban

    Sebastian Urban

    Ex-Yahoo, Expert Freelance Software Engineer

    Australia - Last active: 12/30/2013 - Tests: 3

    I am a pragmatic engineer with an appreciation for elegant solutions, and a focus on results. I studied Computer Science at Macquarie University and later Charles Sturt University (Australia), with majors in Network Engineering and Information Systems. I began my professional career at AOL in 2000, where I was employed for 5+ years in various network operations and software development roles. I was then recruited by Yahoo, where I held increasingly senior roles within the Engineering organisation across a number of different departments including media (news, sport & finance), Search (algorithmic web search, SMB, location and maps), Mobile (apps and web) and Social. I remained at Yahoo for 7 years, until leaving in 2012 to start my own business. I have extensive experience working on projects of all sizes, ranging from single-member teams working on small websites, to internationally distributed teams across multiple countries, timezones and languages. I am most comfortable working on LAMP stack solutions (Linux, Apache, MySQL, PHP) and most of my experience is building server-based software, including APIs. I also have experience developing iOS applications (Objective C), as well as HTML5 / CSS / Javascript web applications. I am a motivated self-starter, and also very much enjoy working as part of a team. I have connections with many other professionals in complimentary fields (visual design, project management, css/webdev) and can recommend others for tasks at which I am not skilled (eg. logo design, graphic arts etc..). I enjoy using software design patterns (MVC, Pub/Sub, Strategy, Builder, Factory, etc..) where appropriate to deliver maintainable, flexible and forward-looking solutions. I observe all practical aspects of the software development life cycle, and can supply all design and planning documents as well as code documentation as part of any project. Please don't hesitate to reach out if you have a project, I'd be happy to give a realistic quote.

    $111.11 /hr
    0 hours
  6. Ryan Schranz

    Ryan Schranz

    Web applications developer

    United Kingdom - Last active: 01/31/2014

    I have worked extensively on the back end side of web applications. This means I am extremely proficient at server management and code development. Before I moved into more server based work, I worked on front end, scalable, HTML/CSS/Javascript/PHP websites. I am usually tasked with code/flow architecture, as this is where my passion lie. This means anything I make is as efficient as possible. I know a wide range of programming languages, that include: HTML (XHTML/HTML 5/ETC) XML CSS Javascript (both native and plugin based: Jquery/etc) PHP SQL Coldfusion Linux Bash ASP I am a perfectionist, so anything I make will be of the highest quality and finished in the shortest time possible. I live in the UK, but will be available via; email, phone, skype or any other method of communication.

    $33.33 /hr
    0 hours
  7. Joe Cortopassi

    Joe Cortopassi

    iOS Developer / Web Developer

    United States - Last active: 01/08/2014 - Portfolio: 3

    I am a business minded iOS and web development professional, that is quick to adapt, and has an eye for the user experience. I have developed everything from ad-serving SDK’s to lead generation web services, budgeting apps to GPS enabled logging systems, and many other things in-between. Besides my tangible skill set, I have proven myself to be a leader and hard worker over my job history. If you have any questions, feel free to contact me. I look forward to exceeding your expectations.

    $100.00 /hr
    0 hours
  8. Andre Rattinger

    Andre Rattinger

    Frontend/Backend Web Developer

    Australia - Last active: 02/03/2014 - Tests: 2 - Portfolio: 2

    Hi, I'm Andre, a experienced software engineer based in Sydney, with lots of experience developing web applications with technologies such as Django, HTML5, CSS and Javascript. I've handled multiple successfull and deployed projects in the past, and guarantee open and active communication. * I started developing applications more than 8 years ago, and have more than 4 years of web development experience. * Full Stack Programmer, my normal workload conists of Frontend and Backend work, and i can set up and maintain linux servers. * Bachelors in Computer Science. * I have a backup team of talented people if a deadline approaches fast.

    $44.44 /hr
    0 hours
  9. David Peters

    David Peters

    Magento Web Developer

    United Kingdom - Last active: 5 months ago - Tests: 3

    I provide my clients with a fully integrated e-Commerce solution to suit their needs using the Magento platform. I am interested in working with people from the initial conception of a project and providing ongoing development, training and support. They systems I provide can include functionality of your choice and/or can include the following... - Full e-Commerce (online shop) platform - Full inventory/warehouse management system - Point of Sales system (i.e A till system for retail shop) - Accounts package integration (i.e Sage etc) - Shopping Platform Integration (i.e Google Shopping, Amazon & eBay) - Shipping/Logistics management - Email - Reporting I do not wish to be considered for small 'one-off' support jobs as this is not the type of work I do. I have a small handful of clients that I am able to give my full support to and do not wish to fill up my time with troubleshooting problems with other peoples sites. If you are looking for a reasonably priced, English web developer to work with you on your e-commerce project, please send me a message and I look forward to discussing how I can be of assistance. Working alongside my partner, I also provide the following ongoing services... - Data Entry (such as product creation and image uploads) - SEO (Search Engine Optimisation) - PPC & SEM (Managed Google Adwords (PayPerClick) Campaigns & Search Engine Marketing - SMM (Social Media Marketing i.e Facebook/Twitter etc) - Bookeeping Negotiable pricing as per project and ongoing support required. Please feel free to get in touch to discuss your requirements. Regards Dave

    $33.33 /hr
    0 hours