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, 332 API Development projects are completed every quarter on Upwork.

332

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 4.65.

4.65
Last updated: September 1, 2015
Clear all filters
  1. Denis Jefimov

    Denis Jefimov

    Android / Javascript / Java / PHP / MySQL developer

    Finland - Tests: 8

    I have over 4 years of solid IT experience. My core competency lies in back end technologies like API development and/or integration and databases design. Having a business administration experience I'm able to contribute to project from technical and from business points. I love to expand the domain of my knowledge and work experience in any field. Areas of expertise: - Gathering and analyzing project requirements - Android App Development (Phonegap, Ionic) - JSON, XML, SOAP - Wordpress - HTML5, CSS - Oracle, MySQL, PostgreSql - Facebook API, SMS Gateway, Payment Processor - Java, Spring

    $25.00 /hr
    367 hours
    5.00
  2. Mahabubul H.

    Mahabubul H.

    Zend Certified, PHP-Java-MySql-Symfony-ZendFramework-Spring-jQuery

    Bangladesh - Tests: 9 - Portfolio: 5

    Individual developer, working since 2005, got lots of experience in web development and desktop application development. Very good at php, java, javascript, ajax, css. I have done a professional certification on php5 (Zend Certified Engineer). Authored a book on Zend Framework. Work with me, i can assure you 100% satisfaction. Till today I have developed almost every kind of website from large social network to small personal site. I am very good at apis also like Google Data Api (youtube, map, calendar), Facebook api, Twitter api, Paypal api, Amazon api, eBay api etc. Last but not least i develop websites for mobile also. What I care most is a good long term relation with clients. After finishing a project I provide support for a long time. Okay this is all about me in brief. Looking forward to work with you. Thank You.

    Groups: Zend Certified Engineers

    $25.00 /hr
    706 hours
    5.00
  3. Deepak Aggarwal

    Deepak Aggarwal

    .NET, MVC, Javascript, Jquery, SQL Srvr, API, Tester,Technical Support

    India - Tests: 2

    Passionate and motivated problem solver with 6+ years of experience in a broad range of technology stacks covering Development, Integration, Data, Infrastructure and Support. My highlights include: 1. Got TOP RATED Tag provided by Upwork recently 2. More than 3800+ hours remote work experience on Odesk 3. 5 stars rating from all upwork clients till now. 4. Mote than 5 Years experience of working remotely with big IT organizations such as Devfactory, gteam, Versata , gen3media, Zendesk support etc 5. 5 years experience of using Atlassian products -JIRA, JIRA Service Desk, and Confluence 6. Salesforce API Integration and development expert 7. Zendesk apps and widgets development expert 8. Six years experience of dot net development (ASP.net (2005-2013) using C#.Net and VB.net ) 9. MVC (2.0 - 5.0) 10. Linq, Entity framework(4-6), NHibernate. 11. Javascript, Jquery and it plugins, AngularJS 12. DNN (6-7) 13. ASP Classic 14. Web Services(SOAP/REST Services, asmx ,WCF, Web APIs), dot net window sercices development and WCF 15. Third party tool integration (MS Chart, go data Reporting, red controls, payment gateways etc). 16. Windows App and WPF 17. Reporting - SQL Server Reporting Services (2008 - 2010) , Crystal Report and Gooddata 18. Database - Microsoft SQL Server (2000-2014), MS Access 19. Five years experience of working with ticketing system platforms (Zendesk ticketing system, JIRA ticketing System, Mantis etc) 20. Good experience of Automated testing using tools such as Testcomplete, TestExecute, Junit, bash scripting etc 21. HTML5 and CSS3

    $15.00 /hr
    3,854 hours
    5.00
  4. Seeraj A.

    Seeraj A. Agency Contractor

    Business Development Manager

    India - Tests: 1 - Portfolio: 45

    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
    4.91
  5. Rambabu B.

    Rambabu B. Agency Contractor

    PHP expert (wordpress, opencart, joomla, codeigniter, magento)

    India - Tests: 6 - Portfolio: 5

    i am having 6 years exprience in php. i know core php, wordpress, joomla, opencart, magento, codeigniter, html, javascript, ajax, jquery, mysql, API integration(bullhorn, infusionsoft, facebook, twitter, gmail, hotmail, yahoo, 5 pm, adobe connect)

    Associated with: Greendays Infotech

    $15.00 /hr
    36 hours
    5.00
  6. Aaron Pardes

    Aaron Pardes

    Django/Flask/Rails Web Developer

    United States - Tests: 3 - Portfolio: 1

    I have a B.S. in Industrial and Systems Engineering and having been doing entrepreneurial web development for 10 years. I specialize in back-end development with Python frameworks (Django and Flask) but I am also proficient with Ruby on Rails. I have worked with many small startups as well as Fortune 50 companies in capacities ranging from developer to product manager. I have extensive experience building and interacting with RESTful API's, data modeling, and project management. You can view my full CV at my website http://pardes.io

    $80.00 /hr
    1,228 hours
    5.00
  7. Vsevolod Z.

    Vsevolod Z.

    Python developer, Infrastructure Expert

    Ukraine - Tests: 7 - Portfolio: 2

    Computer Science Master, since 2000 successfully held positions of * Web Applications architect, Python developer and security expert; * Chief Technology Officer (CTO), * Chief Information Security Officer (CISO), * IT manager; System analyst, Solutions architect, Advisor; * UNIX systems and networks engineer (16 years of experience); Specialties Networks architect (MPLS, VLAN, internal routing protocols, BGP), UNIX OS family, Juniper/Cisco network equipment, Firewall, Network and software security (covering Payment Card Industry Data Security Standard), Network services monitoring, Backup solutions, LAMP/FAMP/BAMP/LNMP/FNMP/EBLAMP/XAMPP/XNMPP servers, Database administration, DNS, MTA, Software development, Web applications, Cloud computing, Virtualization, Load balancing and High availability clusters solutions. Practically experienced in programming (since 1993). Good knowledge of the common programming languages: C, PHP, PERL, Python, Javascript, SQL. Familiar with OOP (object-oriented programming), general theory of programming (can quickly learn any new programming language).

    $50.00 /hr
    750 hours
    5.00
  8. Dhaval S.

    Dhaval S. Agency Contractor

    Android,iOS native/hybrid apps, javascript/cordova/parse

    India - Tests: 9 - Portfolio: 15

    Developed native and hybrid apps on Android and iOS. Please visit http://dhavalsharma.com to know more. Also have developed in java, objective-C, GWT, python, django, jquery development on Linux, Google App Engine,android and iOS platform. I have developed applications in extjs/sencha touch. I have also done workflow automation using Google Apps Scripts in Google Spreadsheets for multi-location distribution and aggregation of reports.I also have extensive IT experience in delivering and executing IT based solutions and projects for over 16 years on multiple technologies and platform for global clients.

    Groups: Android

    Associated with: greenwalk

    $33.99 /hr
    2,441 hours
    4.59
  9. Joseph V.

    Joseph V.

    CEO of Vent Software

    United States - Tests: 2 - Portfolio: 2

    As a programmer, I aim to create software solutions that push technological limits. It is my goal to stay ahead of the tech curve. Innovation is my best practice. In my opinion, the technology in this world is leaning towards mobile technologies. Entrepreneurs are striving to fill the mobile application gap. This space can be confusing without an engineer who knows the field. Let me help you create the next big innovation!

    $33.33 /hr
    3 hours
    5.00