Top Upwork Freelancers

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  1. Ivan Dunkiy

    Ivan Dunkiy

    Mobile developer

    Ukraine - Last active: 5 months ago - Tests: 3 - Portfolio: 1

    I'm end-to-end mobile developer. Made and released 7 projects both for Android and iOS. Used to work with technologies such as: REST, ORM, Push Notifications, SQLite, Google Maps, GSON, PayPal and others. Custom Layouts and Views creation. Used multithreading, background services, gestures listeners. Deliver your project from the start with specifications, requirements and design developing to the end with making support and analysis.

    $27.78 /hr
    22 hours
    5.00
  2. Pedro Correia

    Pedro Correia

    Microsoft Certified Master - SQL Server

    Portugal - Last active: 10/14/2014 - Tests: 3

    Pedro Correia was born in 1976 on the 265th day of that year. He has been working with SQL Server for over 12 years, since the days of SQL Server 7.0, and his specialties are security and performance tuning. He is also a SQL Server trainer and teaching is one of his passions. In 2012 he became one of the few Microsoft Certified Master - SQL Server 2008. He is a Microsoft Specialist and also has the following Certifications: - Microsoft® Certified Solutions Master - Microsoft Certified Solutions Developer - Windows Store Apps - Trainer - Programming in C# Specialist - Microsoft® Certified Solutions Associate SQL 2012 - Microsoft® Certified Solutions Expert - Data Platform - Microsoft® Certified Professional Developer - Azure - Microsoft Certified Solution Developer - Microsoft .NET

    $55.56 /hr
    14 hours
    5.00
  3. Bhupinder S.

    Bhupinder S.

    Good Android application developer

    India - Last active: 4 months ago - Tests: 2 - Portfolio: 5

    I have 2 year experience as an android application developer in an organization. I can utilize my skills to achieve the goals of any organization.I have skills to handle the challenging projects and provide the quality work. I have strong knowledge of JAVA, JAVA SCRIPT, C, C++,Objective c programming languages.I also have experience with IPHONE application development and managing database using MYSQL and SQLITE.

    $7.78 /hr
    10 hours
    5.00
  4. John B.

    John B.

    Expert LAMP admin, focus on Python and Flask

    United States - Last active: 6 months ago - Tests: 3 - Portfolio: 2

    Stanford grad w/ Masters of Information Science (UIUC) and 9+ years building whiz-bang websites, analyzing the heck out of some data, fixing what's broken, and making things that don't break in the first place. Talents: Python (esp. Flask, Django, and SciPy/NumPy), front-end stack [(X|HTML|5), CSS3, javascript (jQuery, backbone, etc.)]; server setup and administration; redis, SQL, mongo; solid understanding of what a user looks for when they look for information, and how to get it to them. Robust support for data management throughout its lifecycle of interest. I can also churn out written content pretty fast, if that's something you need.

    $45.00 /hr
    174 hours
    4.98
  5. Glenn Calleja

    Glenn Calleja

    Glenn Calleja

    Malta - Last active: 05/11/2014 - Tests: 2 - Portfolio: 2

    I am a full time iOS app Developer, and have been solely responsible for various apps including PageProud for iPad, apps for insurance companies, and much more. I have used the latest iOS technologies and have upgraded many apps for iOS 7. I also have experience working as a freelancer, where I was responsible for the creation of various iOS apps from start to finish. I have a B.Sc(Hons.) in Computer Science & AI from the University of Malta. Software and Technology Technologies: OpenGL, DirectX, WPF, WCF, Win32, Swing, Unity, ASP.NET iOS - Cocoa Touch (UIKit, Core Data, Core Audio, Media Foundation, Game Kit, Map Kit, Core Location, Game Center, iCloud), Core Foundation, Core Animation, Grand Central Dispatch Databases: MySQL, MS SQL, SQLite

    $22.22 /hr
    54 hours
    5.00
  6. Maxim Zavadskiy

    Maxim Zavadskiy

    Web/Game Developer on Cutting-Edge. Honest and clear communication.

    Finland - Last active: 4 months ago - Tests: 1 - Portfolio: 4

    Maxim Zavadskiy is a developer with experience in multiple fields such as Web Development (2 years) and Game Development (1 year). His recent 1-year long project included full-stack web design and development with Meteor, MongoDB, CoffeeScript, Bootstrap, Selenium, Agile and TDD. Maxim always seeks to extend his expertise by adopting new skills. Getting project done and clear communication is a priority for Maxim. He utilizes agile development, making software in small iterations, taking constant feedback from the client. Therefore client always is in sync with developer and project progresses quickly and constantly. It proved to be highly effective technique with his previous client. Maxim cares about quality code and is a good team-player. To organize the work well and make development transparent for client he uses modern tools such as Trello, Git. Maxim has a strong problem solving skills and was multiple prizewinner of ACM-like programming competitions, including national level.

    $30.00 /hr
    69 hours
    5.00
  7. Garik K.

    Garik K.

    ISTQB certified Senior QE, 14 years exp., Java, Selenium, Automation

    Czech Republic - Last active: 2 months ago - Tests: 10 - Portfolio: 1

    Having around 14 years of experience in IT (as Developer and QE) I have been working (as permanent & freelance) for various big companies, leading and/or developing test frameworks for the API, webUI projects mainly focusing on automation in Java, Python, PHP, Shell scripting. Various IDEs and automation frameworks were chosen like: Eclipse, Vim containing Junit3, Junit4, TestNG, Selenium {1.x; 2.X,}, Nose tools for developing the framework around them. WebUI tests were running under win/linux platforms for IE, Firefox, Google Chrome, Opera, Safari. The place to track the defects were/are: Mantis, Bugzilla, Jira I am familiar (and using in my daily routines the CLI of them) with CVS, SVN, Git source control systems. My growing knowledge in Linux scripting and administration gives me chances to develop and use helpful utilities (installers/etc) in the shell as well. The DBs I workedwith: foxpro, mySQL, Postgres, MongoDB, Oracle Recently the idea of Continuous Integration (CI) Testing becomes vital for companies for their testing: I used to work with Jenkins (aka: Hudson) with its tons of plugins and fund it really exciting. All my recent project I'm constantly using under Jenkins now :) OS-s: Win (old platforms), Windows 7, RHEL {4,5,6}, Fedora {10-15}, CentOS {5,6}, Ubuntu, Amazon Linux Recently: got ISTQB certification.

    $28.90 /hr
    4,349 hours
    5.00
  8. Ryhor Supruniuk

    Ryhor Supruniuk

    Software and Mobile Developer

    Belarus - Last active: 6 months ago - Tests: 1

    Highly motivated developer with broad understanding of software development workflow. Have broad experience in different areas begining from mobile apps and ending by business solutions for different platforms. Also I've experience development trading algorithms that were profitable. Programmed and modified trading systems for the different trading platforms with API & FIX protocols. Created both automated and semi-automated trading systems, custom indicators, and risk management tools. Platforms: iOS, Windows, OS X, Linux, FreeBSD Languages: Objective-C, C#, Ruby on Rails, Python, SQL, Java, Easy Language, Metatrader, WealthLab, Delphi Tools: Xcode, Intellij Idea, Pycharm, Visual Studio, Embarcadero, Visio, Multicharts, Wealth-Lab, Tradestation, Metatrader iOS: CoreData, CoreLocation, Foundation, MapKit, UIKit, AFNetworking, MKStoreKit, Socia, CorePlot, CocoaPods, Multithreading, Networking,RestKit, etc.

    $13.94 /hr
    33 hours
    5.00
  9. Paul June Domag

    Paul June Domag

    Microsoft MVP | C# Desktop | ASP.Net MVC | JQuery | EF | WCF | SQL

    Philippines - Last active: 07/26/2013 - Tests: 1 - Portfolio: 6

    In my 10+ years on the IT Industry, I have participated on different kinds of projects that demands specific roles. There are instances in which I was the one to design the architecture of the application and manage its implementation. While there are some that requires me to follow an existing architecture and work with other developers on the implementation. This shows that I can either work alone and manage my own resources or be a part of a development team. I have already helped companies develop different types of applications ranging from simple dynamic websites up to a full-blown Desktop/Web application using the .Net Framework. I primarily use C# as my main programming language. One of the most important thing on a virtual work environment is to establish a good communication with the client. I do this by having a daily/weekly meetings to keep the client up to date with the things that I’m working on. It’s already been 4 years since I started doing Telecommuting (Home-Based) Jobs. And during that time, I have learned how to manage my time efficiently and deliver products as expected by the client.

    $16.67 /hr
    3,958 hours
    4.34
  10. Vadim S.

    Vadim S.

    Experienced Web Developer, skilled at PHP/MySQL/JavaScript/HTML/CSS

    Ukraine - Last active: 10/21/2013 - Tests: 14 - Portfolio: 6

    See http://www.skorba.pp.ua/en/ for more details OS, software, environment: Excellent knowledge of Windows and Unix systems at the administrator level. Knowledge and experience in setting up and implementation of application software. Main working bunch — LAMP. Expertise in configuration, support, optimization of web servers and associated environments, using memcached, nginx, HAProxy, Varnish, scribe. Development Experience: 9-year experience of web development in PHP (Java, Python), profound understanding of OOP and MVC model using PHP-frameworks (ZendFramework, CodeIgniter, Symfony, CakePHP, Yii) for its implementation. Experience in designing high-loaded systems, their object model and database structure, using ER and UML-diagrams, documentation and the subsequent successful implementation, upgrade and support. Technologies: Proficient in W3C valid XHTML layout (and solving problems of incorrect display in different browsers), CSS, JavaScript, using various frameworks (JQuery, ExtJs, YUI, MooTools) to implement a dynamic user-friendly interface. Understanding and applying AJAX-technologies, SOAP/REST data exchange between web services, implementation of web services. Instruments: Use — Doctrine, Propel as ORM, as well as the Sphinx for the implementation of relevant and rapid search. Experience in applying for the template - XSLT, Smarty, in-line PHP, LESS. Using Mantis, dotProject, Trello, Trac, Jira, Basecamp, Assembla, Unffudle as a bugtracker for the project management and monitoring tasks. Version control — Mercurial, Git, CVS, SVN. IDE — Eclipse, NetBeans, ZendStudio. Apache, nginx, lighttpd as a web servers, MySQL, MSSQL, PgSQL, MongoDB, memcache, redis - as data storage and cache. Used flexible Agile principles (Scrum, Kanban) for team development and management.

    $55.56 /hr
    673 hours
    5.00