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On average, 307 API Development projects are completed every quarter 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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Manali D.

Manali D. Agency Contractor

One Stop Corner for Website/Web Development | Mobile Apps | Softwares

India - Portfolio: 4

*** Topmost Web Designing and Development - Android development - iOS development Company *** Array Infotech Pvt. Ltd. is a vision to turn your dreams into reality, started in 2009. Earned CMMI Level 3 recently. It is a software development company located at Gujarat, India. We have nearly 110+ employees with varying and certified technical skills. We are now 5+ year old company with strong leadership having nearly 7 years of IT Industry experience. We have worked on projects for web based development, client-server technologies development, web designing, Mobile app development product development. Visit us surely at: Our Core Expertise: ------------------ - Web Applications Development - Enterprise solution development - Desktop Applications/Desktop Widgets - Integrating 3rd Party web services - SOA enabled applications development - E-Commerce application development - Maintenance and enhancement of existing application - SaaS enabled application development - Product engineering - Mobile application development - Gaming development Technology Expertise: -------------------- - VF, APEX, classes, triggers, pages,packages, web service call outs, s-controls, scheduled batch jobs, customer portal development, Integration with external applications, Conga developers integration, QuickBooks integration - .Net 1.1/2.0/3.0/3.5/4.0/4.5 (C#, VB.NET), ASP.Net, Winforms - WPF, WCF, Silverlight, LinQ, Windows Compact Framework - Web application, Desktop application, Windows services and Web service development - Classic ASP, Visual Basic 6.0, VB Script, Java script, jQuery - Databases - MS SQL , My SQL, Oracle, Access - Reporting: Crystal Report, SSRS, Jfree Charts, Jasper reporting - Server Technologies : BizTalk, SSIS, SharePoint, IIS, Tomcat, Weblogic, Webspear - Java/J2EE, EJB, JSP, Servlet, JSF, J2ME - Frameworks : Spring, Hibernate, Struts, MVC, Tibco GI, DNN, Rich Faces, Maven - Development tools- Visual Studio, Eclipse, RAD/RSA - Third party integration - Telerik, DevExpress ,Yahoo UI, Backbase, Quickbooks, Conga Developers, Aspose.PDF, Aspose.Slides, Adobe InDesign, iTextSharp - PHP, open source frameworks like Zoomla, Drupal, Wordpress, Zend, CodeIgniter - Testing - NUnit, jUnit, TestDirector, Selenium - Web 2.0, Ajax implementation - iPhone/iPad/Android development ----------------------------- Our AIM is to ----------------------------- - Provide 100% Satisfaction to our customers - Provide Quality Service - Provide Value for money We believe in best and we think that our customer business grows, our business too will grow.

Associated with: Array Infotech Pvt. Ltd

50% Job Success
$4.00 /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

79% Job Success
$50.00 /hr
0 hours



Software Engineer

Cameroon - Tests: 1 - Portfolio: 1

I'm a very dynamic software engineer, passionate about using evolving technologies to solve bottom of the pyramid problems in the business world today, with potentials and innovative ideas for a better software development and other engineering processes.

$16.67 /hr
0 hours

Patricio Mac Adden

Patricio Mac Adden Agency Contractor

Computer Science graduate, Ruby, Rails, Contributor to Sinatra, TDD

Argentina - Tests: 4 - Portfolio: 1

I'm a Computer Science graduate with 6 years of experience in Web Development. I love Ruby, Rails, Sinatra (which I contribute to) and Test Driven Development.

Associated with: TEMPL

$33.33 /hr
12 hours

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

100% Job Success
$80.00 /hr
1,426 hours

Pankaj kainthla

Pankaj kainthla

iOS/Android Developer

India - Tests: 6 - Portfolio: 22

Android app, iPhone app, cross-platform app, GPS app, web services…you name any term of mobile and I will not say no to it. With extensive experience in the mobile industry for over 6 years, I have experimented on the oldest and the latest of the technology. I am a tech-savy from childhood which can be reflected through my qualification. I have graduated in Computer Applications and then post-graduated in the same. After my studies I got placed in an IT company where I worked for 2 years but I was not able to enhance my Skills and project my capabilities fully. So, I became a full-time freelancer. I am a workaholic and can never refuse work as it is my utmost priority. I often have to work against the clock to meet deadlines during the busy season but that pays off always. With such vast scope of mobile apps, I have made apps for almost all the major domains as listed below: 1) Photo Editing app (iOS, Android) 2) Traveling App (iOS, Android) 3) Food and Beverages App (iOS, Android) 4) Social Media App (iOS, Android) 5) Utility/E-commerce App (iOS, Android) 6) Real Estate App (iOS, Android) 7) Taxi App(iOS, Android) 8) Health Care App (iOS, Android) 9) Dating App (iOS, Android) 10) Emoji Keyboard App (iOS, Android) TECHNICAL SKILL SET Front-end Languages: Objective C, Swift, JAVA, HTML5, JavaScript Back-end: SQLite, MySQL, SQL Server Web Services: JSON, SOAP Project Management Tools: Basecamp Task Management Tools: JIRA, Trello, Teamwork ANALYTICAL SKILL SET Research Oriented: The projects which are at a nascent stage of conceptualization require lot of deliberation and expert consultancy. I offer the consultancy and the MR services as well on such kind of projects. Process Driven: I adopt a step-by-step process in development. This helps me write clean and optimized codes. Updated With Recent Technologies: It is possible that the technology you are expert at today may turn obsolete tomorrow. So it is always better to keep yourself updated with the recent technologies. I keep myself abreast with the latest developments in mobility solution ecosphere. Fluent communication skills and good inter-personal skills complete me as a full package of developer. I love to make long-term relationships and never let my clients complaint because of the superior quality I deliver as an end-product.

100% Job Success
$30.00 /hr
4,103 hours

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).

100% Job Success
$50.00 /hr
764 hours

Francisco Goncalves

Francisco Goncalves

IT Architect / Open-Source Solutions and Linux / Virtualization Specia

Portugal - Tests: 1 - Portfolio: 4

Over the last 4 years i have worked as a Team Leader and Analyst / Programmer in the development of B2B & Social Web Apps, using PHP and JavaScript Programming Languages and associated tools like RAD PHP and WaveMaker RAD / SpringSource Java based (Javascript and Java), all based on agile methodologies. Also Programming in C++ and Shell Script, for specific project module interfaces with O/S via IPC. Also as Project Development of a CRM/Contact and E-Commerce Web Applications written in JavaScript and Java / Hibernate with MySql DataBases and TomCat WebServers. JasperSoft BI & Report Writer with Java and JavaScript Integration. Also Spring Data and MongoDb technology implementations for document storage and retrieval. Doing Systems support in Linux O/S, Virtualization, Shell & C Programming, High-Availability systems and security like firewalling and IDS (Intrusion Detection Systems) technologies. Also a Full implemention of a project for a large enterprise, involving Linux systems, virtualization platforms based on VMware Server and Linux KVM, an innovative solution for electronic mail (e-mail), collaboration and information sharing (Zimbra e-mail, now VMware), management and monitoring solution and tools with OpenQrm Data-Center Cloud Automation, Hobbit and Monit/Munin, all of them based on open source software. Also provided the development of Linux Shell scripts to fully automate backups of physical machines and virtual servers, provisioning strategies, performance tuning and troubleshooting, security and active measures for proactive and preventive maintenance. The complete deployment of platforms and tools to assist in the complete automation of the data-center, with Cfengine 3 (Automation & ITIL V3), Snort and Swatch Logging Analysis. Implementation of Open Collaboration and Content Management Platforms in the Cloud, provided as a service (SaaS). Implementation of a Thin-Client Infrastructure to provide Virtual Desktops as a service in a SaaS model (Linux and Windows Applications). Applications Developments in PHP, Java and Javascript, and my recent project (a 6 moths development) can be accessed here :

$40.00 /hr
0 hours

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 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

83% Job Success
$33.99 /hr
2,441 hours