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

334

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: July 1, 2015
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  1. Sugandha Ralhan

    Sugandha Ralhan

    Senior .Net/Java developer and Software Testing Lead

    India - Last active: 10 hours ago - Tests: 2 - Portfolio: 2

    I am a 10 year experienced developer(.Net,Java/J2EE). Have very good hand in .Net,Java technologies - ASP .Net, MVC, Web API, SQL Server, Desktop applications,jsp,Sprints,Struts etc. Have worked in Infosys for 1 year and then worked as Team Lead /Manager for a Team of 14 resources.

    $22.22 /hr
    1,381 hours
    5.00
  2. Wallace Ferreira

    Wallace Ferreira

    Software Analyst/Developer

    Brazil - Last active: 1 day ago - 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 Amazon.com, Walmart.com, ToysRus.com, 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 (http://www.econoinfo.com.br). 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.

    $27.78 /hr
    961 hours
    4.95
  3. Justin F.

    Justin F.

    PHP Developer

    Philippines - Last active: 1 day ago - 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, Wordpress

    $13.33 /hr
    2,810 hours
    5.00
  4. Alexander Kozlov

    Alexander Kozlov

    Top level professional Architect and SW engineer

    Russia - Last active: 3 months ago - Tests: 21 - Portfolio: 5

    Make things done! I'm a professional C/C++ developer with more than 12 years of experience. I have been working both for a companies from Fortune 500 list, and a small local companies. My core competency lies in the world of mobile applications, SaaS and PaaS, desktop software and games development. I love to do my work right and really enjoy being respected for the things i do.

    $55.56 /hr
    1,772 hours
    5.00
  5. Purushottam K.

    Purushottam K.

    Sr. Software Developer/Architect

    India - Last active: 10 hours ago - Tests: 7 - Portfolio: 2

    Over the past 8 years I have developed a wide range of commercial products including high performance web sites, winforms desktop application, large scale enterprise applications and distributed systems. My skills include expert knowledge in .NET Framework, C#, ASP.NET, Ajax, SOAP Web services, REST Services, WCF and Winforms. I am technical person and I prefer to talk less and just get things done. I am Microsoft certified professional. I have recently qualified Microsoft Technology Specialist in .Net Framework 4.0 with WCF. Thanks Purushottam

    Groups: Microsoft Certified Professionals

    $16.67 /hr
    2,681 hours
    4.93
  6. Dennis C.

    Dennis C.

    Full Stack Web Developer/Ruby on Rails, Python

    Canada - Last active: 1 day ago - Tests: 6 - Portfolio: 3

    Having 9 years experience in the web developing, I strongly believe that I can make a significant contribution to you. My web developing expertise includes: - Ruby on Rails, Python/Django, Laravel - Dabasbase programming and administration with MySQL, PostgreSQL, MongoDB - UI/UX developing with jQuery, AngularJS, D3.js, Backbone.js, React.js - Node.js and Socket.io - RESTful API developing and third party web service integration. - TDD/BDD with RSpec, Cucumber, Capybara, Jasmine, Protractor - Search Engine : Apache Solr, ElasticSearch, Sphinx - AWS, Heroku, GitHub If you want to build smart, robust, flexible web apps, I will provide you best solution with my skill, experience, honesty and reliability.

    $44.44 /hr
    664 hours
    4.46
  7. Shumaila Khan

    Shumaila Khan

    Open Source Developer

    Pakistan - Last active: 1 day ago - Tests: 5 - Portfolio: 8

    I have done BS in Information Technology from Jinnah University for Women and right now working as a software engineer with expertise on PHP CMS and frameworks.I am a trainer and a blogger too. I love to read and meet new people! I am looking forward to work as freelancer becuase it is always fun to work with differenct poeple from different areas & with different technologies. Its a complte adventure package .

    $10.00 /hr
    17 hours
    4.53
  8. Ziaullah K.

    Ziaullah K.

    Microsoft .Net Developer

    Pakistan - Last active: 10 hours ago - Tests: 6 - Portfolio: 3

    I'm a professional Software Developer with history of productivity and successful project outcomes. I'm in the industry for more than 4+ years. .NET full stack expertise also having strong expertise in Knockout, JQuery, Bootstrap, metroui, HTML5 and CSS3. Good working Knowledge of Solr, Lucene and Elastic Search. - Software & Web Development Experienced in development of Web & Enterprise applications using .NET Technologies. Develop & modify applications, modules and components based on functional and business requirements through all stages of software development life cycle. Provide software development support in all phases of scrum methodology and practice collaboration, sprint review, sprint retrospective and spring planning meetings. - Configuration Management Huge experience in documenting Configuration management plans, processes, and procedures In-depth knowledge of Configuration management best practices, framework and methodology Proficient in TFS, SVN, BitBucket, GitHub & JIRA Well versed in build and testing automation especially as they relate to development tools.

    $20.00 /hr
    244 hours
    4.89
  9. Dhruvi P.

    Dhruvi P.

    Web Developer

    India - Last active: 2 days ago - Tests: 2 - Portfolio: 4

    I am a Web and Software Developer with commitment for quality work with the use of latest technologies. My ultimate motive is client satisfaction. I have command on my skills that are always in search of challenging projects. If you have some thing like that, Let me know. I have a total of 5 years experience in developing software and dynamic web development and custom web development. I have industrial experience for business professional. Lots of people enjoy my services because I provide satisfiable web solution to all of my client with reasonable cost in short period. I am a professional web solutions provider. I can provide you turnaround and time frame quickly. I have good expertise in E-commerce solutions, MVC, Web API, Web Service,Web Applications and Software Development, CakePHP, Zend Framework, Wordpress, Codeigniter, Joomla and Quality UI, Web Designer and Mobile Application Development PSD to HTML5, Responsive and PHP development. I can provide you a good quality of work

    $15.00 /hr
    56 hours
    4.73