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. Joshua Harbaugh

    Joshua Harbaugh

    Experienced Front-end Developer

    United States - Last active: 3 months ago - Tests: 4 - Portfolio: 8

    I am a versatile front-end developer with solid experience in HTML5, cross-browser compatible CSS (using pre-processors like LESS and SASS), and progressive enhancement techniques with Javascript, jQuery and AngularJS, as well as, a strong focus in clean responsive design.

    $55.56 /hr
    126 hours
    5.00
  2. Tarun M.

    Tarun M. Agency Contractor

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

    India - Last active: 2 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
    1,196 hours
    4.95
  3. Le Minh Tai

    Le Minh Tai Agency Contractor

    High Skilled iOS/Android Developer

    Vietnam - Last active: 7 days ago - Tests: 1 - Portfolio: 7

    ********* I am changing the world and influencing people’s lives every day as a mobile developer *********** As an experienced mobile app developer, I have a very clear development process: 1) Works closely with customers to understand detail requirements of the app, also actively helps customer to understand technical implementation of the required features. 2) Upon understanding the requirements, start analyzing and bring these requirements to a breakdown, create a mockup, review and send to clients for approving. 3) Upon having the necessary resources for the project, complete a detail plan for the development process. 4) Create prototype for the customers to try the app on actual device and have feedback. 5) Start implementing the app features and test them, make necessary change if needed. 6) Help customers to prepare all necessities to publish their app. 7) Depending on contract terms, I provide customer a certain period of free support. Source code and documentation are also handed over to customer. Because I have a very clear development process, I always make the customers satisfied with the best quality of apps released. I have 3+ years of experience in mobile application development. Currently, iPhone/Android development is my core area of interest. I am very fluent in Objective-C/Java application development. I have made use of APIs of SNS(Facebook, Twitter, Linked In, Youtube etc.), Google Maps, GPS, Communication(Wifi/3G) etc. Once we have a chance to cooperate, I will impress you with my work ability and experiences. ------------- iOS app designer | iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer | iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer | iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer | iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer | iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer | iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer | iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer | iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer | iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer |iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer |iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer |iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer | iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer | iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer | iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer | iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer | iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer | iOS development | iOS app designer | iPhone developer | iPhone development | iPhone app designer|android developer | android development | android app designer|iOS developer #

    Associated with: MOBIONEER Agency, QTS

    $16.67 /hr
    291 hours
    5.00
  4. Jonathan DeVries

    Jonathan DeVries

    Engineer and Programmer

    United States - Last active: 4 months ago - Tests: 3

    Aeronautical Engineer with five years of analysis, design, and CAD experience. Programmer with seven years of structured language experience, and three years of object-oriented programming experience. Granted Bachelor's in Science in Aerospace Engineering from Iowa State University, May 2013 Notable projects: Mars Autonomous Vehicle for Robotic Inspection and Construction: http://goo.gl/qhwxCD (Python, Solidworks) SAE Aerodesign Series (Ansys, Fortran, C++, Solidworks) Team Emerald- A supersonic business jet (Ansys, Fortran, Star-CCM+, Solidworks) CoolCFD- Open Source Computational Fluid Dynamics Software Project ClusterOne- A data collection and grouping project, meant to facilitate machine learning. (Python, Java, JavaScript, HTML, PhP) Ames Lab Department of Materials Science and Engineering website: https://www.ameslab.gov/dmse/highlights (PhP, HTML, Drupal) I'm currently designing an online portfolio, which will showcase my design work and source codes. However, in the meantime a portfolio is available upon request. I'm also a soldier in the U.S. Army Reserve. It's a lot of fun, and it's a great way to give back to a community which has helped me get to where I am. Essayons! Thanks for visiting! Jonathan

    $17.44 /hr
    43 hours
    5.00
  5. Amit Singh

    Amit Singh Agency Contractor

    Senior iPhone/Android Application and Games Developer

    India - Last active: 1 month ago - Tests: 2 - Portfolio: 1

    I'm a talented software engineer specializing in iOS platform with 4+ year experience and 3 years for Java technologies. My skills and experience are as follows: I have Development Experience of iPhone/Android Complex with objective C, Cocoa Touch, Java and Eclipse. I have significant Experience in Cocoa framework, Xcode5 and above interface builder, iPhone SDK 3.0 and software development with an Object Oriented Language. I possess a Solid understanding of design patterns and their implementation in Cocoa Framework I have strong knowledge of Java, Eclipse., Web Service, Java, Ajax, XML, JSON, RSS, SOAP and WSDL. I have experience with relational databases using SQL Server and SQLite. I have experience in developing reusable APIs & in standard and commonly used iPhone SDK framework. I have a complete understanding of Apple iPhone application guidelines and compliance requirements. I have significant experience in developing … My Promise & Service I will do my best to satisfy you with PERFECT result. I will not ask payment if you are not satisfy with my result. I will provide you updates every 2 days via www.testflightapp.com I will assist you to submit app to store and will have responsibility I will provide you 1 months bug fix support without additional fee. anything else you want? :) Thanks

    Associated with: Apps Maven

    $22.22 /hr
    208 hours
    5.00
  6. Khushwant Dhayal

    Khushwant Dhayal Agency Contractor

    Expert Mobile App Developer | iOS | Android |

    India - Last active: 10 days ago - Tests: 3 - Portfolio: 6

    Self-directed and motivated Mobile Developer with 4+ years experiences in Objective C/XCode, Java, C/C++,PHP, JQuery, .Net technologies. Excellent at developing and maintaining client/server applications. I represent Finoit Technologies and In past 4 years I have developed a wide range of apps in Android,iOS and Windows platform. I have developed apps for different categories like Education Entertainment/Music/Social Networking Finance/Survey/Inspection Games/2D/3D/VectorWork/Simulation Health/Medical Lifestyle News/Magazine Productivity Transportation/Travel/Navigation

    Associated with: Finoit Technologies (I) Pvt. Ltd

    $15.00 /hr
    647 hours
    5.00
  7. Kabindra Bakey

    Kabindra Bakey

    Freelance Ajax Based Wed Application Developer

    Nepal - Last active: 2 months ago - Tests: 6 - Portfolio: 3

    Over the last 5 years, I have developed a wide range of websites using HMTL, DHTML, PHP, and MySQL including sites for startup companies and small businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business. I also have some experience in the following areas: SQL, Ajax, OOP, and software design and testing. Thank you for visiting my profile and I look forward to work with you in near Future. Best regards, Kabindra Bakey Gtalk: koolkabin@gmail.com Skype: koolkabin

    $16.67 /hr
    18 hours
    4.90
  8. Deepak C. Agency Contractor

    Html5,Graphic-design, Adobe-illustrator,Css3,Bootstrap

    India - Last active: 2 months ago - Tests: 9 - Portfolio: 35

    I am professional & expert graphic designer specialize in crafting exquisite custom graphics for website, print materials and others graphic templates. My goal is to provide professional and high quality design. I hope I will be able to achieve client's satisfaction and I can do something better for my client with my heart and soul. Capabilities • Conversion to Vector Design and Layouts • Banner • Logo • Header • Flyer • Business Card Photo Editing • Color Enhancement • Changed Background

    Associated with: Smartnetstudio

    $9.00 /hr
    27 hours
    4.19
  9. Nitin Bandia

    Nitin Bandia

    100% Satisfaction of Our Clients is Main Aim...

    India - Last active: 09/17/2014 - Tests: 1 - Portfolio: 8

    About Nitya Web Solution Excellent marketing system is the first requirement of a successful business organization and, business is becoming more dependent on the internet because of the internet marketing system. Internet has a large effect on our lifestyles. It has almost changed our lives. Now, we can shop from our homes, we can chat with our friends, we can meet with our friends through social medias and we can do lots of things through internet. Thus internet has also changed the ways of marketing and it has opened new doors for the companies to promote their product. There are various new forms of marketing and a company can persue any of these forms to promote their product. Well, these new forms are internet marketing, social media marketing, newsletter marketing, SEO marketing, niche marketing, referral marketing and promotional marketing. However, a business company needs a great web solution that can help them in promoting their products. There are various web solutions in the market who are claiming that they are the best web solution but most of these websites are cheaters and they are cheating their consumers. Our services are of superior quality and our team is a bunch of dedicated and experienced individuals who handle every problem very skillfully. Each of our teams has individual project managers who stay in touch with our clients on a regular basis to ensure a sound product can be developed. In order to interact with our outsourced clients we arrange many video conferencing sessions. and more furnish below. Word press Designing and Developing. Word press template Designing and Developing. Word press Plug-ins creation. Word press development for security sites. Programming on .Net 2 or 3.5, C, C#. Website Designing and Developing. Ecommerce Site Development PSD to Word press. PSD to HTML. HTML/CSS. Database Creation. Internet Marketing. SEO Works. Typing Works. Conversion Works (PDF to MS Word, Excel). Presentation Works on PowerPoint, Web research. Web scraping. Votes on Contest, Likes on Facebook. Needed Traffic your site. Google Ad sense and Google Ad Words Works as well. Articles and Blog Writing and Submission on High PR sites Our MissionNow, you do not need to go further to find the best web solution. Nitya web solution is here to help you with your business problems. You will get everything through Nitya web solution. Nitya web solution is offering various web based services such as Word press, BPO, SEO, Web site solution and SEO solution. The services that you will get through Nitya word press care are word press designing and developing, word press template designing and developing, word press plug-in creation, word press development for security sites, programming on .Net2 or C, C#, website designing and developing, ecommerce site development, PSD to word press and PSD to html. The services that you will get through Nitya SEO solution are html or CSS, database creation, internet marketing, SEO works, typing works, conversion works, and presentation works on power point, web research, web scraping and votes for your site or likes on facebook. And, Nitya BPO care will offer you google Ad sense and google Ad works services. If you need to design a website for your company then you should come to Nitya?s door. It is always open for you and your business. Nitya web solution is providing everything that will help their consumers in spreading their business. We are also capable for provide service for Articles writing and Blogs Writing as well as submission on high PR site for your articles and blog with 100 % unique and passed copy scape Client Satisfaction Satisfaction of our clients is our most and genuine aim. Take one time our service and you will be our regular clients and be our regular customer. Most of my Clients are from USA, UK, AUS, CAN and many other Countries. 18 Hours Support through live chat and Email too.. Help you for any issues of any projects which developed by Me The main goal of Nitya web solution is to satisfy their consumers. You will get an awesome friendly environment here and you will be treated as the most valuable person at Nitya?s door. You will never forget your experience of working with Nitya web solution. Try their service and judge their service. I am sure that you will love their services and you will want to work with them again. Their services are superior of quality and you will definitely like their work. Here, you will find a bunch of dedicated and experienced worker who are ready to serve you with their quality work. So, what are you waiting for? Try their services today. thank for reading the profile Nitya Web Solution

    $15.00 /hr
    0 hours
    0.00