API Development Professionals & Consultants

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

377

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 4.66.

4.66
Last updated: May 1, 2015
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  1. Alexander Kozlov

    Alexander Kozlov

    Top level professional Architect and SW engineer

    Russia - Last active: 8 days ago - Tests: 21 - Portfolio: 4

    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
  2. Tanmoy S.

    Tanmoy S.

    Web Developer | Android Developer

    Bangladesh - Last active: 1 day ago - Tests: 13

    Greetings. This is Tanmoy, computer science graduate, basically a programmer working with Web & Android application development. Web Development: I've strong knowledge on PHP/MySQL/JavaScript and frameworks on those like WordPress and Joomla. For MVC, I worked with PhalconPHP, Laravel & YII. My expertise is mainly on WordPress and PhalconPHP. I developed at least 800 WordPress based website which included usage of different themes, plugins, custom theme & plugin development, custom field/meta/taxonomy/cron etc. I'm very skilled in REST API based projects. I can develop API platform for you with JSON/XML response or SOAP API. Android Development: I normally develop application (not games) for Android. I'm highly skill in SQLite Database, HTTP/HTTPS/Socket connection, File, Media, In-App Purchase, Google Play Licensing, Camera, Location, Sensors etc. based projects. I use Java instead of third-party tools to provide excellence. Social Login Integration: I provide social login integration service both for web and mobile application. For modern app, you must need it to engage more users. For my expertise, dedication and hard work, I always got great feedback from client. What you're still waiting for? Just hire me to get your project done.

    Groups: Application Developers Alliance, AWeber...

    $33.33 /hr
    1,124 hours
    5.00
  3. Sergiy I.

    Sergiy I.

    Middle Android/Java Developer

    Ukraine - Last active: 1 month ago - Tests: 9 - Portfolio: 16

    I have 5 years of experience in software development. I have understanding and knowledge of object-oriented approach, software engineering principles, and concepts. Extensive experience in commercial Android application development. Explicit knowledge of mobile device architectures and mobile development platform. In-depth knowledge of Android OS, interactive application development and memory management. Worked with all common Android frameworks and APIs: - Very thorough software architecture and API design skills. - Geolocation (GPS), google maps, places API; - Web Sockets, WebRTC, faye; - Camera, Bar code scanner, State ID scanner; - GCM (Google Cloud Messaging); - Databases (SQLite), ORMLite, ActiveAndroid; - Notifications, broadcast receivers; - Social networks integration(Facebook, Google+, Twitter...); - REST API, cookies, managing sessions; - Custom UI elements. Excellent problem solving, communication, and collaboration skills. My maturity and practical experience will be of great benefit to you.

    $33.33 /hr
    15 hours
    5.00
  4. Daria G.

    Daria G.

    Back-end and front-end dev and photographer

    Ukraine - Last active: 2 days ago - Tests: 2 - Portfolio: 1

    I specialize on Ruby on Rails and front-end development. In spite of the fact I have got a degree in International Journalism and Translation, I worked as QA and IT Sales for total of 3 years (from 2008) and then moved to web development from Jan, 2012. I have performed both back-end tasks (from basic CRUD to making simple APIs or server scripts) and front-end (building static websites from scratch or developing views with twitter-bootstrap). I believe the experience is formed with the quality of the projects, you have delivered, and not with the years of sitting in front of the laptop. Specialties: ruby 1.9.2+, Ruby on Rails 3.0+, linux and MacOS X environment, unix-shell, Git, SQL (SQLite, MySQL, PostrgeSQL), HTML, Haml, CSS, Sass, Less, twitter-bootstrap, javascript, jQuery Here is link to my github profile: https://github.com/amseledka I do photographs and various design tasks in my spare time, as well as help my friends with Russian-Ukrainian-English translations. My flickr profile: http://www.flickr.com/photos/37859578@N06/

    $33.33 /hr
    1,791 hours
    4.61
  5. Oleg Batishchev

    Oleg Batishchev

    Magento Jedi / Senior Web Developer / Consultant

    Russia - Last active: 1 day ago - Tests: 6 - Portfolio: 9

    Hello dear customer, Yes, I'm not wrong, cause after read that you will wanna to hire me ;) Well, now seriously ... I am a highly experienced verified by oDesk web developer who has primary direction of activities in e-Commerce web-developing, in that case it's a Magento area. I'am an adept of Magento and if you don't know what is it and you wanna e-commerce site you have to contact with and I will explain how is Magento awesome. I have 3 years experience in Magento and 9 years total in PHP developing with an MVC, different CMS (Wordpress), frameworks (Yii, Zend) and other. I always stick to the coding standards and follow the best practices to provide seamless, readable and reliable code. Besides developing I have some administration skills to manage servers, automate routines and can improve performance of Magento backend and frontend as well. Also I can setup the server from a scratch. I prefer a stack for Magento consists of: Nginx, Php-Fpm, Redis, Apc, Mysql 5.5 (5.6) (Percona better), SOLR/Lucene/Sphinx. I prefer do not install any control panels but if required I would prefer ISP Manager 5 Lite. Magento related Experience and Services - Optimization, load improvements, speed up - Extension development and customization - Troubleshooting - Tweaks & tricks - Bulk importing. Do you have 100k products? It's not a problem - Store migration - AWS, Rackspace building an architecture of you infrastructure - Core upgrade - Magento recurring support - Bug/error fixing - Theme design and customization - Consultation - Code review I also have some basic skills in the desktop programming (C#) and some Photoshop skills. I'll be glad to new acquaintances and long-term cooperation. I have a team of developers and every day we are expanding. Just hard to write all things what I can do. I am easy learnable for new stuff (frameworks, custom systems, foreign code). My strong side is a backend developing and have a good knowledge of a frontend side: - HTML5/CSS3 - Bootstrap - jQuery - Ajax - WebSockets, Long polling - Prototype - ExtJS - Google API, Yandex API - many other things that I can't remember at this moment. Also in a less degree Angular, Backbone and other frameworks/libs. Communication Channel : Skype/Whatsapp/Email/Phone I have listed only a little part of my portfolio cause I have many jobs completed and I can't add every job to profile.

    $45.00 /hr
    1,139 hours
    4.98
  6. Yogesh Trivedi

    Yogesh Trivedi

    Magento Expert Developer / Magento Designer / PSD to Magento Template

    India - Last active: 1 day ago - Tests: 16

    I’m Professional Magento Expert with having 7 years of overall experience and 5+ years of core Magento Design, Development, Customization experience. With all this skills and worldwide eCommerce merchandise experience I’m became of Magento consultant where I can guide you through all the process of Magento, I’m always updated with all its news which I am using to deploy the best solutions for my clients. I’m oDesk Magento Verified Developer - https://www.odesk.com/contractors/?g=odeskverifieddevelopers&q=magento I’m a team player where I can support you to manage and hire best remote team for your eCommerce project playing role of Consultant and I believe its worth to have a consultant for project who have ability to develop and design robust solutions. My approach starts from understanding the business concept along with the requirement which is making me to understand the whole scenario very quickly. I've working experience with Core PHP, WordPress, Joomla, Prestashop but I only like to work with Magento eCommerce as it’s my core and professional expertise and eCommerce is my robust and attractive topic always. Below are my expertise with Magento: Magento Front end design and Development Magento Back end Development Customized Magento Extension Development Complex Coding Third Party API / Web Services Integration Payment & Shipping Method Development and gateway Integration Purchased Template Installation and Integration Magento Template Design from scratch PSD to Magento Design PayPal Payment Method and API Expertise Magento and third party data transfer bridge I can communicate/hold interview via oDesk, have good communication skills, comfortable to talk and chat over Skype, Hangout or Phone.

    Groups: Application Developers Alliance, BigCommerce...

    $38.89 /hr
    2,053 hours
    4.95
  7. Jonathan C.

    Jonathan C.

    Consultant

    United Kingdom - Last active: 3 days ago - Tests: 1

    I have a UK university PhD, in Artificial Intelligence, and the business management skills to match, together With 15 years of Delphi, C++, Java, SQL, and Object-oriented analysis and design experience. I specialise in development including protocol specification, thread management, distributed communication and database transaction management. I have retro-fitted software in tasks ranging from installing improved modules to sophisticated Artificial Intelligence sub-systems. I can provide the often essential empathy with the contract holders, and the pragmatics to satisfy the demands of management. I have 20 years of competency in the software industry, and have a proven track record that will guarantee the successful realisation of your system requirements. I have designed and implemented systems used by multi-billion turnover corporations around the world, saving millions of pounds savings per year. My scope in system design and development ranges from individual utilities and embedded operating systems, through to large-scale corporation-wide distributed architectures. I am also able to provide a code debugging and fixing service, either onsite or online. I can give workshops and can facilitate training of new software developers, both in-house and online. I have managed my own team and maintained their skills matrices, ensuring training has been current. I have defined and managed new product releases and have written instruction manuals for new and "super" users at the customer end of the project.

    $105.56 /hr
    2,324 hours
    4.96
  8. Hamdan A.

    Hamdan A. Agency Contractor

    Experienced Web Developer

    Palestinian Territories - Last active: 8 days ago - Tests: 4 - Portfolio: 7

    Talent is just a gift reflected as a quality I have 10 years of web development experience. Here is my key skills that I am very experienced in each : ✔ Native PHP Development , Organised , OOP , and Commented clean code. ✔ WordPress: WooCommerce, BuddyPress, bbPress, Genesis, OptimizePress, ClassiPress, Thesis, PageLines, Gravity Forms ✔ e-Commerce: Woocommerce, Magento, Prestashop, OpenCart, Shopify, BigCommerce, Spree ✔ Front-end: HTML5, CSS3, SASS/LESS, Bootstrap, Javascript, jQuery, Angular. ✔ Node: Express, Meteor, Sails ✔ Python ✔ blade , Jade , Smarty ★ love Your Work means You Are Special ! ★ Available to work on big projects, on-going projects , and quick modifications. Please feel free for a friendly talk

    Groups: Bluehost Developers and Designers, Corona Labs...

    Associated with: PalPHP

    $40.00 /hr
    449 hours
    5.00
  9. Dhaval S.

    Dhaval S. Agency Contractor

    Android,iOS native/hybrid apps, javascript/cordova/parse

    India - Last active: 10 days ago - Tests: 9 - Portfolio: 15

    Developed native and hybrid apps on Android and iOS. Please visit http://dhavalsharma.com 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, oDesk Verified Mobile Developers

    Associated with: greenwalk

    $33.99 /hr
    2,380 hours
    4.59
  10. Nik Vashenko

    Nik Vashenko Agency Contractor

    iOS / iPhone / iPad / Objective C / Java / Android / Mobile Developer

    Russia - Last active: 21 days ago - Tests: 10 - Portfolio: 7

    Over the past 8 years, I've achieved mastery of C, C++, Objective C, Cocoa, Cocos2D, MySQL, PostgreSQL, SQLite. Currently I am studying Android, Java, Titanium and Sencha Touch. My core competency is complete end-to-end management of mobile application development projects. My clients have primarily been startup companies and very large agencies; I have worked for a lot of big companies as well as the F500 incl I know how to get your project done across the finish line, and how to refactor and scale your projects without throwing out the whole codebase. I have all necessary devices to develop and test your application: All iPhones and iPads, a lot of Andoird phones and tablets, iMac. I understand how important trust, communication and deadlines all are. I'll be glad to help you. Best regards, Nik.

    Associated with: Lodoss team

    $35.00 /hr
    4,680 hours
    5.00