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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
    1,119 hours
    4.97
  2. Sugandha Ralhan

    Sugandha Ralhan

    Senior .Net/Java developer and Software Testing Lead

    India - Last active: 13 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
    1,373 hours
    5.00
  3. Miguel Diaz

    Miguel Diaz

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

    Peru - Last active: 13 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
    2,533 hours
    4.99
  4. 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
  5. Azwaan A.

    Azwaan A. Agency Contractor

    Senior Developer/Solution Architect (C#, .NET, MVC, AZURE, SQL)

    Sri Lanka - Last active: 1 day ago - Tests: 7 - Portfolio: 9

    An Accomplished Software architect, consultant and Lead Developer, with in-depth expertise on Desktop, Web, Cloud and Enterprise applications on the .NET platform as well as strong ETL and Business intelligence expertise on the SQL Platform. Highlights 13 yrs of experience in the Industry. More than 20,000 Hrs of development work. more than a Dozen certifications (MCPD, MCITP, MCTS) on various .NET and SQL Server related technologies. I write clean code, Follow SOLID principles in development, designed to to develop manageable, extensible and reusable systems Co-Founded a US Based startup Available to work on US EST work hrs Expertise on requirements analysis , estimation to Architecting solutions and leading teams on complex development projects to review and performance tune existing applications. In-depth knowledge and familiarity of developing applications for a number of industry domains such as Financial services, Energy, Lead Processing, Automobile, Telecom billing, Consumer goods and Manufacturing. Extensive experience in enterprise software development life-cycle. Agile and Scrum/XP Methodologies in managing project teams. Key Achievements Architected, Managed and led development effort to build a complete eco-system for automobile lead processing, lead delivery, inventory management and digital advertising. Founded a Microsoft technology consulting and outsourced product development firm, leading its product delivery team and delivered multiple solutions in different industry verticals. Led improvements to existing development processes using best practices, guidelines and process re-engineering on multiple engagements. Multiple successful consulting and delivery engagements turning around troubled existing systems into revenue generating applications that can be scaled to meet customer demand. Was part of team that built the world’s first Online AGM solution. Web Technologies ASP.NET MVC (2.0 to 5.0), ASP.NET Forms, HTML5/CSS3, WCF Web Services , .NET 2.0 Web Services, SOAP/JSON/AJAX/REST, JQuery, ODATA, Knockout JS Windows Applications Windows Forms, WPF, Silverlight Frameworks .NET Framework (2.0 to 4.5), Telerik Kendo UI, Windows Azure (Cloud), Amazon SDK Software Design/Architecture Patterns GRASP, GOF, MVC, MVP, SOLID, DRY, KISS, YAGNI, Domain Driven Design(DDD), CQRS Databases/Database Technologies SQL Server (2005 – 2012), SQL Integration Services, SQL Reporting Services, Geo-Spatial Data, MongoDB, LINQ, Entity Framework, SQL Azure Middleware MSMQ, Windows Workflow Foundation, NServiceBus, SQL Service Broker Development Process Methodologies Agile, Scrum/XP, Prince 2, TDD, DDD , BDD, Continous Integration (CI) Tools Jetbrains Teamcity, 3Scale API, JetBrains DotTrace, YSlow Payment Technologies PayPal, Chase Payment Tech, Speedly, BrainTree, PayPros

    Associated with: Inexis Consulting

    $33.33 /hr
    2,812 hours
    4.92
  6. 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
  7. Anatolii R.

    Anatolii R.

    node.js (ex. php) backend webdeveloper

    Russia - Last active: 1 day ago - Tests: 7 - Portfolio: 10

    I'm one of the 3% most active JavaScript users on github - see first link in my portfolio. I have passed nodejs test among 10% most skilled nodejs developers - https://www.odesk.com/exams/_10426641 I mainly develop scalable RESTfull NodeJS servers for native mobile or single page applications or phantomjs based webscrappers trying to keep them simple and fast. I'm proficient with MySQL,PostgreSQL, AmazonRDS, MongoDB, Redis as databases, and can use most suitable one for your project. I can be your devops for tasks of deploying nodejs applications on Centos 7 VPS/VDS servers, Amazon EC2 or Heroku Cloud Application Platform. In my work i use git,mercurial and SVN version control systems, for every job i create a private repo at bitbucket.org for (me and customer only) for feedback, bug reports and support. I have a strong background as php/zend/symfony 1.4 developer and linux user since 2002 year. My work hours is 5 PM to midnight - Moscow time.

    $33.00 /hr
    1,158 hours
    4.21
  8. Purushottam K.

    Purushottam K.

    Sr. Software Developer/Architect

    India - Last active: 13 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
  9. Tanmaya Mishra

    Tanmaya Mishra

    Web Application Developer in ASP.net,C#,Javascript,Classic ASP, API

    India - Last active: 7 days ago - Tests: 7 - Portfolio: 1

    SkypeID: mishra.tanmay I am here to apply myself and my experience in developing web applications with all my zeal, freedom & enhanced responsibilities. I have worked for various organization for past 10+ years primarily in web application developments. I have experience of working with various technologies like ASP.net Webforms, ASP.net MVC, C#, JavaScript , jQuery, ASP, VB, SQL Server,Open Laszlo. I attribute my hard working, sincerity & eagerness to learn to the success of my short career till now. I am flexible and open to suggestions every time and in every situation. Hoping to have a great career enhancement here at oDesk.

    $25.00 /hr
    3,578 hours
    4.94
  10. Barrett Griffith

    Barrett Griffith

    Senior Ruby and Javascript Engineer - Full Stack

    Costa Rica - Last active: 6 days ago - Tests: 4 - Portfolio: 2

    For the last 14 years I have been pushing the boundaries of the internet as a front-end developer, product manager, back-end coder, system architect, and leader. I have been a part of startups, worked as a freelencer, and built my own ventures. These days I enjoy working with Ruby, building sites and apps that make a positive difference in the world, and contributing to open source projects. I've taken a number of apps to the cloud and am not afraid to learn new skills, and tools. I like blogging about the adventures: http://blog.barrettgriffith.com I also do github: http://github.com/forgotpw1 I am a good "Hired Gun" for projects of any size.

    $75.76 /hr
    1,082 hours
    4.57