Top Upwork Freelancers

Clear all filters
  1. Bruno Martins

    Bruno Martins

    Senior Android Developer

    Norway - Last active: 3 months ago - Tests: 9 - Portfolio: 5

    Very motivated and determined young man with a taste for Science. Most of my career focus as been on Android Development. I have a lot of experience working for major international corporations and building serious, solid apps for big commercial purposes. Main Skills : - Android SDK & NDK - JAVA and Java Native Interface ( C / C++ ) - PHP, Mysql, JavaScript, Jquery, Doctrine, Zend Framework. - iOS SDK I'm looking for good business relations and partnerships and work together to build good, solid and efficient applications.

    $55.56 /hr
    701 hours
    5.00
  2. Aleksandar Misic

    Aleksandar Misic

    Software developer

    Serbia - Last active: 06/05/2013 - Tests: 2

    Programming Skills - ASP.NET, ASP.NET Web Forms, ASP.NET MVC, ADO.NET, WPF, C#, VB, DynamicData Framework, Entity Framework, ASP AJAX, JavaScript, jQuery, jQueryMobile, SQL, LINQ, HTML, CSS Database Skills - MS SQL Server 2008/2005, Oracle 9i/10i, MySql, PostgreSQL/PostGIS Platforms - Windows XP/Vista/7 - Experience in developing various Web/Desktop based applications using ASP.NET Web Forms, Windows Presentation Foundation, Web Services with C# and VB.NET and JavaScript(jQuery). - Complete end-end management of a new website development project. - Proficient in web services concepts and Client/Server application, well acquainted with software development project lifecycle and different software development models. - Experience in using and manipulating ASP.NET Server controls like DataGrid, DataList, and Repeater. Good know-how in Data binding concepts in .NET. - Experience in ADO.NET Strongly typed DataSets, DataReaders, Transactions and good experience in creating, consuming and modifying Web Services using MS Visual Studio .NET. - Good database designing skills in SQL Server, SQL Queries, Stored Procedures. - Skilled in creating graphical user interface portion of Web/Desktop based applications with HTML5, CSS3, jQueryUI, jQueryMobile. - Knowledgeable in Responsive Web Deisgn techniques. - Experience in creating GIS applications(PostgreSQL/PostGIS, Openlayers.js, Geoserver, pgRouting).

    $5.56 /hr
    84 hours
    5.00
  3. 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
  4. 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
  5. 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
  6. Roman S.

    Roman S.

    Java/Android Software Engineer

    Ukraine - Last active: 07/01/2014 - Tests: 3

    Over the last 5 years I've developed a wide range of Android apps. Currently participates in the development of applications for the Android and BlackBerry mobile platforms. Successfully participated in the design and development of many small-sized, medium and large projects. Apart from development, was also responsible for project management, in particular these were healthcare, entertainment, and educational development projects.

    $20.00 /hr
    170 hours
    5.00
  7. Simon Lang

    Simon Lang

    Software Engineer / Web Application Developer. PHP, MySQL, JavaScript

    United Kingdom - Last active: 02/13/2012 - Tests: 3 - Portfolio: 1

    I am a 24 year old web application developer from Brisbane, Australia - although I'm currently based in Edinburgh, Scotland. I have a Software Engineering degree, and about 10 years of industry experience. (5 in programming and web, 5 in general I.T. support) If you're reading this, hopefully you're interested in giving me some work. I really love my job - making web applications is *fun*. I'm always keen to work with talented, passionate and like minded people, so please get in touch if you think we'd work well together. Ideally I would love to be working on challenging projects that are founded on a Zend Framework back-end and a rich Javascript front-end interface. I am also starting to experiment with developing my first Chrome Extensions, Android Apps, and Google Marketplace Apps. I'm a bit of a Google Fanboy and love working with their APIs. http://www.simonlang.org/

    $66.67 /hr
    552 hours
    5.00
  8. Jim Keir

    Jim Keir

    OCP Oracle Database Administrator

    United Kingdom - Last active: 12/31/2014 - Tests: 4

    British expert in Oracle performance tuning. Multiple OCP certifications, 15+ years experience in the field as DBA and Consultant. SQL and PLSQL tuning, data structure recommendations, database healthchecks, server performance optimisation, Pro*C. Holistic approach to making your Oracle database faster. Spend a little on efficiency, save a lot on hardware.

    $66.67 /hr
    43 hours
    5.00
  9. Devendra Patel

    Devendra Patel

    Software Engineer

    Canada - Last active: 04/19/2014 - Tests: 8 - Portfolio: 1

    My objective is to complete assigned task in most efficient manner. I am here to provide my software development skill and also build trust with the clients. Quality work always comes before anything else. Now about my experience. * 8 years working experience in C++ and Software Analysis, Design and Developement * 4+ years of experience working with Qt framework on Windows, Mac and Linux. * Experience with cross compiling Qt for board using mipsel architecture and porting the Qt application to run on that board, * 3 year of experience developing iPhone apps. * Worked on designing and developing multi-threaded, modular application which runs on different hosts and communicate using TCP and UDP (ipv6) using Boost Asio. * 2 year of experience working with Perl scripting. * 1 year of experience working with BB10 platform * Worked on application communicating with webservice using gSoap. The application was created using Qt and running on Plug Computer with Debian. * Fluent in English and very good understanding of Software Development Process.

    $33.33 /hr
    2,547 hours
    4.90
  10. Alex S.

    Alex S.

    Android Developer

    Russia - Last active: 02/05/2014 - Tests: 6 - Portfolio: 11

    Professional Android Developer with over 8 years general(desktop/mobile/emedded) programming. Programming languages: Java, C/C++, PHP, HTML, asm. Fluent use of any new frameworks. Can work as standalone programmer with minimum directions from Your side, also as a good teamworker with cooperations and agile management. Sphere of experience: Top notch Android development, using latest techs, tools and analytics. Will drive your app to the top charts; Team lead; Team manager; UI/UX expert; Monetization, promotion, ads; Data protocol specialist; Beta testing, Feedback control system development; SCADA design; Engineering and design of control systems robots and machines; University background: Specialist with a degree in mechatronics engineering. Strong mathematical and system control knowledges. Spoken languages: English(fluent); Japanese (spoken). Available at: Gmail/skype/hangouts Devices: Android handsets and tablets, wearable, iOS

    Groups: Android

    $50.00 /hr
    6,017 hours
    5.00