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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. Trevor Daniel

    Trevor Daniel

    28 years of software development experience.

    United Kingdom - Last active: 2 days ago - Portfolio: 1

    I am a full-time Elance software developer with 28 years experience. I specialise in developing and using APIs and building custom tools that move data between them.

    $55.00 /hr
    1,118 hours
    4.97
  2. Peter B.

    Peter B.

    Cloud Technologist: AWS & NetSuite Expert

    United States - Last active: 3 months ago - Tests: 3 - Portfolio: 1

    I have been in software development, networking and technical management for over 18 years. I can implement your AWS Auto Scaling fleet, build and host an API integrating your existing web services with NetSuite, and build you a custom solution to your biggest technology challenges. I worked for Amazon Web Services for more than 2 years as a Software Development Manager for EC2, and interacted with teams working on S3, SNS, RDS, SQS, ElastiCache, EBS, CloudFront, DirectConnect, EC2 VPC, Route 53 and more. I have worked with and still interact with the people that make AWS tick and grow. You can trust me to bring my first hand knowledge of the inner workings of AWS to help your business succeed. I've spent several years building and customizing NetSuite. I've gone deep with Javascript and the nsAPI calls in SuiteScript. I've integrated external systems and APIs into NetSuite, optimizing workflows and saving employee time and overhead. I look forward to learning about you, your business, and what projects you are working on to help build your success.

    $175.00 /hr
    0 hours
    5.00
  3. Azmat Masih

    Azmat Masih

    Azmat Masih

    United States - Last active: 09/28/2014 - Tests: 1 - Portfolio: 1

    I am a strong team player, highly motivated, work very well under pressure required to meet the tightest of deadlines. And highly organized, have excellent communication, time management and organizational skills. I am adaptable, conscientious and enthusiastic keenly interested in exploring all latest technologies with can do attitude. Expertise: ======= SQL Server 2005-2008 ASP.Net C#.Net Entity Framwork Crystal Reports LINQ WPF MVVM XML API Development Paypal Integration Visual Basic 6.0 Telerik Log4Net AJAX HTML/XHTML Microsoft SQL SSRS

    $11.11 /hr
    124 hours
    0.00
  4. Binod Lamsal

    Binod Lamsal

    PHP Expert, Drupal Developer, Javascript jQuery

    Nepal - Last active: 2 days ago - Tests: 1 - Portfolio: 6

    I am an IT engineer from Nepal, working in PHP programming from last 5 years, I always deliver high quality of work with the reasonable price in the field of web development. I have excellent concept of core PHP programming along with MVC framework, experienced with jommla, drupal and wordpress like reputed open sources. Along with serverside programming I have also strong concept in javascript with it's framework jQuery so can make a communication over ajax to make strong interface program. Last 3 year, I have strongly worked upon drupal 7, and make lots of portfolios upon it. I have concept of creating custom modules and entity upon drupal 7.

    $20.00 /hr
    607 hours
    4.82
  5. Miguel Diaz

    Miguel Diaz

    Chrome/Firefox Extensions, Web Scraping, jQuery, PHP, MySQL,API Expert

    Peru - Last active: 4 hours ago - Tests: 2 - Portfolio: 33

    Over 8 years of experience in web development, I've acquired some good knowledge in a variety of technologies from Linux to jQuery. Recently I've been developing Chrome/Firefox Extensions and Web Scraping Systems, I also have hands-on experience on Third-party API integration. My programming style is clean and straight-forward, with equal emphasis on quality, functionality and maintainability. Here's a summary of the technologies I've been involved with: /Chrome and Firefox extensions |-- Content injection |-- Toolbars |-- Sidebars |-- Tooltips |-- DOM manipulation |-- API requests |-- 'New tab' page overwrite |-- LocalStorage /Web scraping |-- Multi-threaded scraper |-- Proxy switching |-- Javascript-based sites |-- Password/SSL protected sites |-- Image scraping |-- Ad scraping |-- Feed scraping |-- Email extraction |-- Regexp |-- Deliverables in csv, tsv, xml, json, excel, mysql, txt /API Integration |-- Google Maps |-- Google Streetview |-- Google Custom Search |-- Facebook API |-- LinkedIn API |-- PayPal API |-- Maxmind.com (IP Geolocation tools) |-- Clickatell.com (Bulk SMS Gateway) |-- Oneall.com (Social Login) |-- Octeth.com (Email Marketing Software) |-- Adstation.com (Advertising Software) |-- Ekosolutions.us (Mobile marketing and micropayments) |-- Infofax.es (Internet Faxing) |-- Prosperent.com (Affiliate tools) |-- Superfish.com (Visual Search) |-- Wurfl.sourceforge.net (Mobile Useragent Database) |-- Talentbin.com (Talent Search Engine) |-- AWeber.com (Opt-In Email Marketing) |-- Thumbalizr.com (Online thumbnail generator) |-- Fnac.es (Product Catalog) |-- Serhstourism.com (Hotel Search Engine) /PHP |-- CodeIgniter Framework |-- Symfony Framework |-- MeekroDB |-- Xdebug |-- Web services |-- PHPUnit |-- Exception Handling |-- cURL |-- PHPMailer |-- phpDocumentor |-- Memcache |-- ZB Block /Javascript |-- jQuery |-- jQuery UI |-- jQuery Grid |-- jQuery Dump |-- jQuery slimScroll |-- MooTools |-- YUI |-- jSEND |-- qTip2 |-- Conditional compilation |-- DOM manipulation |-- Namespaces |-- Ajax /Linux |-- Apache |-- htaccess |-- Shell scripting |-- Rsyc/SSH |-- Cron jobs |-- Procmail |-- Memcached |-- GNU gettext |-- FFmpeg |-- yum/apt-get |-- Virtual hosts |-- Plesk/cPanel /MySQL |-- Transactions |-- Large databases (~5M rows) |-- Data replication |-- Fine tuning |-- Backups /SEO and Internet Marketing |-- Adsense for Search |-- AdSense for Content |-- Advertising Metrics |-- XML sitemap/videositemap generator |-- Google/Bing Webmaster Tools |-- Long Tail Keywords optimization |-- SEO-friendly URLs |-- HTML Optimization /Project Management Tools |-- Git/GitHub |-- SVN |-- Trac |-- Pivotal Tracker |-- Basecamp |-- Atlassian |-- Balsamiq Mockups /Other |-- C/C++ |-- Java |-- ASP |-- Prolog |-- Visual Basic

    $35.00 /hr
    2,530 hours
    4.99
  6. 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
  7. Chris H.

    Chris H.

    Web Developer (ASP.NET | MVC | AngularJS)

    United Kingdom - Last active: 2 days ago - Tests: 6 - Portfolio: 6

    Microsoft Certified Solutions Developer with over three years’ programming experience using .NET framework to deliver web and desktop applications. I’m a passionate C# developer with extensive knowledge and experience with: - ASP.NET back and frontend development, including WebAPI 2, MVC 5 - Client side scripting, JavaScript, jQuerry, AngularJS, Knockout - Clean and SEO-Friendly HTML5 and CSS - Task automation using Poweshell scripting and C# applications Committed to designing up to spec, reliable and extendable solutions. Focused on delivering quality work on time and within budget. Always open for communication. Highly flexible, independent contractor that will get the job done for you.

    $20.00 /hr
    197 hours
    5.00
  8. 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