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, 307 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 4.64.

Last updated: October 1, 2015
Clear all filters

Parminder Kaur

Parminder Kaur Agency Contractor

Java Developer

India - Portfolio: 2

An ISO 9001:2008 Certified Software Development Company with 100+ highly skilled IT experts in Java, J2EE, PHP, ASP.NET, C#.NET, Web Services, iPhone, Android etc., Recognized by: - ISO 9001:2008 Certified - Oracle Silver Certified - D&B Member - Microsoft Partner Network - Redhat ISV Partner - Nasscom Member - Drupal Organization Member - DSCI (Data Security Counsel of India) Member. Why you choose Suvidha Soft ID Solutions? * Proven Track Record * Dedicated Resources * Customer Focused Approach * Commitment to Quality * Delivering Business Value * Affordable Prices * Easy Communication * On Time Project Delivery We are dedicated to providing our clients with high-end software development services. Quality + Affordability = Our formula to success! Progressive tools, the newest technologies, and our cost-effective services always keep us a step above and beyond our competitors.

Associated with: Suvidha Soft ID Solutions Private Limited

83% Job Success
$20.00 /hr
352 hours

Saqib A.

Saqib A. Agency Contractor

PHP5, Codeigniter (CI), CakePHP, MVC Frameworks, Infusion Soft CRM.

Pakistan - Portfolio: 1

- Full time freelancer & completed 100+ projects - 7+ years of extensive experience in advanced PHP programming - 5+ years experience with CodeIgniter, CakePHP & MVC frameworks - Infusion Soft CRM, Infusionsoft Development, Infusionsoft Administration - Strong understanding of OOP & OOD - Deep familiarity with LAMP & WAMP Environement - Strong understanding and experience with JavaScript, jQuery & CSS frameworks - Have good skills in Project Management

Associated with: Vector Coder

98% Job Success
$20.00 /hr
22 hours

Darelle L.

Darelle L.

Web Developer/Programmer

Philippines - Tests: 1 - Portfolio: 4

Experienced Web Developer with excellent knowledge on HTML5, CSS3, PHP, MySQL, , Ajax, APIs, Opencart and CMS Platforms. I am currently working on a web design company, I am really attached to the projects I have so that I could make success deliverables to the client.

Groups: concrete5, LoadedCommerce

90% Job Success
$12.22 /hr
73 hours

Carlos Feitosa

$35.00 /hr
218 hours

Farooq R.

Farooq R. Agency Contractor

PHP|Directory|MobileSites|Twilio API|Prestashop|API|JQuery Expert

Pakistan - Tests: 5 - Portfolio: 13

Web Horizon is a team of experienced professionals providing a wide range of complex software and web application development services. We believe on professional solution and work hard till customer satisfaction according to their requirements.

Groups: Twilio

Associated with: Web Horizon

100% Job Success
$11.11 /hr
316 hours

William Hong

William Hong

On-demand Web Data Extractor,Web Bot,Data Extraction

China - Tests: 1 - Portfolio: 2

We provide Web data extraction service and products. It takes unstructured data from web html pages and converting it into structured records. The database format could be Excel, CSV, Access, MSSQL, and MySQL. Our leading Web screen scrapping service obtain any contents from any website pages,APIs,RSS under your instruction and send result directly to you in format you require. Or develop web crawlers for you based on our leading web data mining technology and our robust application code base in several days. Web2DB on-demand Data Extractors : Price Grabbers, Craigslist Crawlers,Yellowpage Data extractor,Google Data Extractor,Youtube Data Extractor,Ebay Data Extractor, Business Directory Data Extractor,Daily Deal Aggregator, Whois extractor,Web forum post/populate bot etc.

100% Job Success
$16.67 /hr
5,973 hours

Wallace Ferreira

Wallace Ferreira

Software Analyst/Developer

Brazil - Tests: 10 - Portfolio: 2

Hello, my name is Wallace. I've been working with software development for over 9 years. I acquired a lot of experience developing applications using Visual Basic, C/C++, PHP and Java. My expertise is analyzing and developing Desktop and Web Applications such as: + Crawlers/Web Crawlers - Collecting and storing data from sites, documents, videos, photos, social media sites, classified ads sites, etc. + Web Data Scrappers - Extracting, parsing, filtering and storing relevant data from web pages to readable and manageable formats like Excel, CSV, HTML, etc. + Bots and Automation scripts - Extracting and making business decisions out of data from documents like PDFs, Excel, CSV, XML, TXT, etc. - Sending email reports automatically - Auto filling forms - Price comparison apps - Event notifiers + Data conversion/transformation - Transforming/Converting data between formats for import/export in different applications. - Feed generation - Report construction + API development/integration - Adding support for third parts services - Creating interfaces for communication between systems. I have developed dozens of applications for a wide range of application domains including: - E-Commerce sites (like,,, etc) - Financial market - Market research groups - Medical related groups - Shipping companies - And several other personal applications. Some formats I have expertise in are: - JSON - XML - SQL - CSV - PDF - TXT - HTML - XSL - XSLX - And others Acting as an analyst and developer, I gained experience with modeling relational databases and SQL, with a focus on MySQL DBMS. Since 2009, I have been working for a company that develops software for the financial market - EconoInfo ( In 2012, I graduated in Computer Science at the Pontifical Catholic University of Minas Gerais - PUC Minas. Over the past four years, I specialized in Java development, especially Java EE 6.0, focusing on technologies EJB, JPA, JSF, JMS and JCR. Acting as an analyst and developer, I gained experience with modeling relational databases and SQL, with a focus on MySQL DBMS. As a developer in charge of creating the EconoInfo website's interface, I also specialized in Servlets, HTML, JavaScript and CSS.

98% Job Success
$27.78 /hr
1,029 hours

Daniel Z.

Daniel Z.

Highly skilled API integrator, PHP (ZF) Coder and Project Manager

Poland - Tests: 7 - Portfolio: 6

Goal: Project and develop high quality apps for your success. Profile: OOPHP & Zend coding, IT consulting and business analyst, project coordinator and manager, Other skills: Apache, Bind, SSH, bashscripting, Memcached, Github, Solaris, Oracle, MySQL, Radius, AD, expert knowlegde of many *ux and windows systems Advantage: Project and implementation of many web apps. Most of it projected and developed by myself using Zend Framework, Google API (youtube, gdata), social API (twitter, facebook). Some of it integrated with operating systems or AAA software (radius, ldap). Usually Design Patterns were used (like Template Method, Version of Control, DAO, Dependency Injection, Decorator and so on). Some application built upon a structure of web services (XML, REST, JSON), some using jQuery and AJAX. Tools and technologies: Apache, radius, bind, ldap, Zend Framework, XML, SOAP, Linux, Linux daemons, Memcached, Sockets, REST, JSON, Oracle, MSSQL, MySQL, Design patterns, MVC, SVN, BASH, PHPUnit, Xdebug, Unit testing, Google Youtube API, Google Gdata API, Google Maps API, Facebook API, PayU API

100% Job Success
$35.00 /hr
1,925 hours

Alexey K.

Alexey K.

Software Developer who can get things working

Italy - Tests: 6 - Portfolio: 2

I am a professional software developer with more than 15 years experience in IT. I am specializing on building complex backend services for distributed/cloud systems. Since 2000 I have been working in IT and have been involved in a wide range of projects from mobile devices to development of huge automated system for cloud deployment. I have a lot of experience in creating of standalone applications and server-based solutions including web-based applications and distributed backend services in clouds. I am interested in backend server development with Python, Ruby. I have an experience with relational and non-relational databases such as MySQL, PostgreSQL, Oracle, MongoDB, Redis and others.

98% Job Success
$38.89 /hr
768 hours

Justin F.

Justin F.

PHP Developer

Philippines - Tests: 1 - Portfolio: 7

For 3 years, I developed websites using HTML, CSS (Twitter Bootstrap), Javascript (jQuery), PHP (CodeIgniter and Laravel Frameworks) and MySQL. My expertise lies on strong communication skills, great foundation in programming and the ability to manage, adopt and learn fast for benefit of the new website development project. So I'm looking forward for more opportunities to build websites for you or your business. Other skill set are: AJAX, OOP, Api Integration, AngularJs

100% Job Success
$14.44 /hr
2,810 hours