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Typical total cost of Upwork API Development projects based on completed and fixed-price jobs.

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On average, 307 API Development projects are completed every quarter on Upwork.


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Time needed to complete a API Development project on Upwork.

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API Development Upwork freelancers typically receive a client rating of 4.64.

Last updated: October 1, 2015
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Dharmesh Pandav

Dharmesh Pandav

Cordova,Phonegap,HTML5,CSS3,SQLite(AES encryption) ,Python|Scrapy|VBA

India - Tests: 5 - Portfolio: 4

I am a full-time software developer specialising in mobile application and web development. I possess knowledge of a diverse set of tools. I proficiently use Python for scripting, parsing and data crunching. I have used frameworks like Scrapy for data parsing and ORM like SQLAlchemy for data storage. I work with SQLITE3 and SQLCipher which are lightweight database systems, secure and mobile friendly. I am proficient in Android development and have used both the Android SDK as well as the cross-platform Cordova/PhoneGap framework. I have written websites using standard HTML5, CSS3 and JavaScript. I always make sure to make the UI responsive by using CSS media queries and a framwork like Bootstrap and PureCSS. On the JavaScript front, for rapid development, I have used JQuery Mobile. I have a sufficient experience in Git for version control. Thanks to my professional career, I also possess an expert skillset in developing VBA macros, which are heavily use to program Excel sheets. I excel at creating graphs, data crunching, etc. using VBA with Excel. My skillset also extend in documentation using Markdown markup language. As for experience, I have developed data-driven mobile apps, which also take advantage of platform-native features. On the web front, I have built an e-commerce website on top of PHP framework. The site also has API support. I have showcased them in my portfolio.

65% Job Success
$11.11 /hr
99 hours

Elvin alvian S.

Elvin alvian S. Agency Contractor

FullStack Ruby on Rails Developer with Responsive Design experience

Indonesia - Tests: 4 - Portfolio: 11

If you want to build an awesome web application, so you need to hire 2-3 developers. but you are only need to hire me, so i can build your Web Application (including, BackEnd(Ruby on Rails, CI) and FrontEnd(HTML5 Responsive, CSS3, jQuery, javascript framework, Create PSD framing layout, Design Web Apps to fit with your smartphone or any device ). And im available if you need to redesign your web apps. Im available as a Ruby on Rails Developer and FrontEnd Developer to Design your apps... And you can contact if you have any question or discuss about your idea. Also I can give you one week trial to see how your idea/app will work. Then we can make your application to MVP, and move it to live. Please feel free to contact me if you need me...

Associated with: Nine Operation Dev

89% Job Success
$13.33 /hr
2,308 hours

Seeraj A.

Seeraj A. Agency Contractor

Business Development Manager

India - Tests: 1 - Portfolio: 46

I believe in team-work. As a team we want to be one of the best Software Services providers globally and customer satisfaction is our primary goal. We not only develop projects but we also provide free consultancy to convert your ideas in profitable business models. Our team consists of 22 highly talented software engineers and graphics designers. Resources work on 1 project at a time so that we could give 100% to each of the projects we undertake.

Associated with: Alcanzar Software Solutions Pvt. Ltd.

$22.22 /hr
0 hours

Monika Sharma

Monika Sharma

Software Developer

India - Tests: 3 - Portfolio: 5

I like to work with my clients as their demands .From long experiences and good skill I am assuring to get the job done . Expert in : (, c#, MVC, Java, PHP, Web Designing, Jsp, servlet). •Worked on the project titled “StudySection” of webners can see my live project at" " •Worked on Desktop application project named as " ProMang". This project is also live in a company.

$20.11 /hr
13 hours

Jammaica Mae Ignacio

Jammaica Mae Ignacio

Web Developer

Philippines - Tests: 5 - Portfolio: 2

I'm a full stack Ruby/Javascript (Front-end) developer with 3+ years of professional experience. I'm good problem solver and puzzle enthusiast holding BS computer science. Today I'm offering backend/frontend services as a freelancer. My main skills: • Ruby, JavaScript • HTML5, CSS3, Bootstrap, HAML • PostgreSQL, MySQL • REST, XML, JSON • Rails, Jquery, BackboneJS, Coffeescript • Photoshop • Experience working with APIs: Facebook Graph, GLOBE, Chikka, Github and serveral others • Git, SVN • Apache, Nginx • Amazon AWS, Digital Ocean • Linux • Understanding of OOP principles and software design patterns • Teamwork experience, JIRA, Pivotal Tracker I have a github and gitlab account. I developed a wide range of websites using Ruby, HTML, JavaScript, CSS and MySQL. I built sites both from scratch and using frameworks, developed custom modules and extended existing ones for my clients. Last two years I was working as full stack developer for an online accounting system (Indinero Inc.), software house (Innohub Inc.) which cater software solutions in a mortgage company in USA. Currently I am maintaining/managing an online payslip application which I created from scratch and deployed last Jan 2015 for a payroll company in Cavite, Philippines as a freelance work. If you feel I am a good fit in your current or upcoming project. I am always available and very much willing to be one of your hired freelancers. Cheers! Email: Skype: jamjam_04

$15.00 /hr
134 hours

Mohit K.

Mohit K.

Expert iPhone/iPad/Android App Developer

India - Tests: 1 - Portfolio: 2

I have completed my Bachelor of Engineering in Computer Science and later pursued my studies in server and DB administrator before I started my freelancing career at oDesk as Mobile Developer (IOS and Android). I have 5 years of experience in IT domain and have delivered mobile solutions to my clients situated in US and Pacific region that efficiently cater their target audience. My most of the solutions address social, hospitality, health, retail, e-commerce B2B/B2C, and food industry. Being a process oriented professional, I work with Agile software development approach wherein from ideation, requirements gathering, SRS documentation, UI/UX, website development, web based admin console, API development, DB administration, mobile app development, testing and QA, etc are taken care of and entire project is sliced in phases to measure accountability. Mobile technologies, I expertise in: ->Objective-C, Swift, iPhone SDK -> Java, Android SDK, Ellipse, etc -> Map Kit, GPS base user navigation and Tracking -> Photo and Camera base app with many advance filers -> Web Server integration using JSON, SOAP, XML and REST Web Service APIs -> SQLIte, Core Data and pList database design -> FaceBook, Twitter, YouTube, Tumblr, Flickr, Instagram -> Push Notification, In App Purchase, iAD, AdMob -> Source code repository in SVN, Version GitHub. etc. Post delivery, I personally monitor the application (web and mobile) for a period of 2 months for bug fixing if any and assist client in commercializing the application, review visitor analytic and enhance the solution to reach next level. I look at extending my services for you.

$15.00 /hr
87 hours

Creole Studios

Creole Studios Agency Contractor

A software design & development studio.

India - Portfolio: 12

We are a software design & development studio based in Gujarat. We're obsessed about creating remarkably stunning & ingenious mobile apps, websites & web apps. Ever since we were in college, we wanted to set up a software studio. We weren't happy with the current software solution providers. Our ma & pa taught us that the purpose of one's professional life should be to solve a problem that is existing in the world. So, we set up our software development studio with an aim to make amazing mobile apps and cool websites. The process of developing web apps and mobile apps doesn't have to be so morbid and mundane. It is a creative process and, if done correctly, it is absolute fun. Everyday we help our clients in their businesses and in their day-to-day lifestyle by building products that they love to use.

Associated with: Creole Studios

85% Job Success
$16.00 /hr
0 hours

Farrukh Naseem

Farrukh Naseem Agency Contractor

Kaya Systems Pvt Ltd - Your Web Department @ Work!

Pakistan - Portfolio: 3

I am highly professional developer and marketing automation expert using InfusionSoft, CustomerHub, ClickFunnel, LeadPages, Memberium, iMember360 and have done extensive InfusionSoft API programming to integrate IS with all Major CMS and E-Commerce platforms.

Associated with: Farrukh Naseem

89% Job Success
$50.00 /hr
0 hours