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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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Althaf M.

Althaf M. Agency Contractor

Certified Web/Software Architect with 10 years experience

India - Tests: 15 - Portfolio: 7

Experience : Experience in architecting and developing softwares for broad range of industries, including Building Management, Energy Management, etc. Have took part in many full SDLC projects and architected few Hybrid products. Well versed with the new paradigm shifts in programming and sound knowledge and experience in system level programming , as well as application programming - especially cross platform complaint solutions. Good linux admin skills as well as automation of many process using scripts. Through knowledge and practical knowhow on scalable web applications as well as web databases. Designed many e-commerce related portals from scratch and made scalable and user friendly approach in the solutions. Have a good overlook on the various aspects of product development and product management and also took part in and contributed to many product marketing strategy building activities. Decade long experience with various technologies and platforms make me learn more and make myself better utilized in various solution architecting and managing activities. Certifications : Certified Software Architect - Carnegie Melon University Certified Green Belt - Six Sigma Engineer (Process) Certified Scrum Master - Scrum Alliance (Agile) Programming/Scripting Languages : C++, PHP, JAVA,JSP,PERL, JAVASCRIPT, HTML5 , CSS2&3, Frameworks/Tools Used : QT using C++, JPA2 - Hibernate, Spring web-mvc, Spring data, Spring security , Spring web flow, Code Igniter, CakePHP, jQuery ,Backbonejs , Underscorejs, Knockoutjs, WebRTC - peerjs, SASS, LESS , REST, SOAP , RTSP, ffmpeg videojs etc. Servers Used , Apache(for php and mysql), Apache Tomcat for java, Glassfish Planning tools used : JIRA , CONFLUENCE, TRELLO, ASANA, Basecamp, Balsamiq Databases - Relational => MySql - Oracle Databases - NoSql => {'Mongo'}, /CouchDb, Solr My Strengths : 1. Quick Learner 2.Perfection (Altruistic) 3. Business Perspective Presently doing partial user experience designing activities - user interviews, Mockups, Card Sorting, Information Architecture, Persona Creation. TRAININGS HTML5, CSS3 and Java Script Training from Microsoft Microsoft training in Win8 Mobile Application Development. Startup Engineering, Standford Unversity Hadoop & Big Data Analytics, Edureka Data Scientist, University of Washington Spring Training from VMWare Mostly online through skype and hangout.

Associated with: SecureBulls

$30.00 /hr
672 hours

Rahul Aggarwal

Rahul Aggarwal

.NET, MVC, JS, Jquery, SQL Srvr,API, Tester,Technical Support,Designer

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 ( (2005-2013) using C#.Net and ) 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, CSS3, Handlebars 22. Designing Tools - Photoshop, Pagemaker, Coreldraw, Dreamweaver 23. Marketing Tools experience such as Act-On, Marketo etc 24. Miscellaneous - Podio, Slack, Heroku

88% Job Success
$15.00 /hr
4,100 hours

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

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

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

88% Job Success
$15.00 /hr
36 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
1,449 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
4,106 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
768 hours