Top Upwork Freelancers

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  1. Hamza Shahid

    Hamza Shahid Agency Contractor

    Video Compression/Decompression, Multimedia, Embedded, Linux & Windows

    Pakistan - Last active: 23 hours ago - Tests: 2

    To work on cutting edge and challenging technologies and provide services in my field of expertise. I have over 7 years of experience in embedded development, video compression/decompression technologies, application development for windows and linux. Tools and technologies I am expert in include C/C++ programming language, C#, Microsoft Directshow. I have also worked on embedded systems which include Xtensa based boards and Texas Instruments DM6467 based boards. I have lots of experience in algorithm development and optimization.

    Associated with: MayarTech

    $16.67 /hr
    1,028 hours
    4.77
  2. Surinder Singh Matoo Matt

    Surinder Singh Matoo Matt Agency Contractor

    Joomla/Wordpress/Cakephp/Nodejs - Extjs-Sencha Touch, developer

    India - Last active: 23 hours ago - Tests: 5 - Portfolio: 9

    ----- ੴ ਸਤਿ ਨਾਮੁ ਕਰਤਾ ਪੁਰਖੁ ਨਿਰਭਉ ਨਿਰਵੈਰੁ ਅਕਾਲ ਮੂਰਤਿ ਅਜੂਨੀ ਸੈਭੰ ਗੁਰ ਪ੍ਰਸਾਦਿ ॥ ------ Over the last 6 years, I have developed a wide range of websites using Joomla,Extjs,Sencha Touch,jQTouch, Oscommerce,Wordpress, Core PHP,Mootools, JQuery, Prototype, AJAX, SOAP, MySQL including sites for startup companies and small businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business.Now we are sharing our extensions on http://www.developerextensions.com We have launched Joomla component creator at http://developerextensions.com/index.php/joomla-component-creator

    Groups: Joomla!

    Associated with: Tiddu InfoTechnology Agency

    $33.33 /hr
    7,866 hours
    4.88
  3. Ayman Gomaa

    Ayman Gomaa Agency Contractor

    iOS,Web Developer

    Egypt - Last active: 5 days ago - Tests: 2 - Portfolio: 2

    Skills: * IOS 8,Xcode * Oracle Developer Suite * Oracle database 10g/11g Administration. * SQL and PL/SQL * XML Desktop Publisher Using Microsoft Office applications. * IBM AIX Basic Administration. * Unix Shell scripting. * Php,Mysql ,CSS,Java Script ,JQuery and XML * Visual C#.NET. (2003, 2005 and 2010) . * Visual Basic.NET (2003, 2005 and 2010). * Web Services (SOA / XML) * C/C++. * Visual Basic 6.0 * SQL Server (2000-2005). * Crystal Reports. * Familiar with all Unix/Linux/Windows . * Matalb 7, Simulink.

    Associated with: Arabic Smart APPS, Oracle XML Publisher

    $38.89 /hr
    318 hours
    4.96
  4. David H.

    David H. Agency Contractor

    Citrix and Virtualizaion Systems Engineer

    United States - Last active: 1 month ago - Tests: 3

    I am a specialist in remote application delivery, VDI and cloud based computing. I have been working with Citrix products and some of their competing products and add-ons, from back in the Winframe NT4 Terminal server days, all the way up to the current Xenapp 6.5. I work full time for a major NYC hospital on the Citrix Engineering team, responsible for 200 + servers supporting a 24/7 mission critical environment. I have engineered delivering hundreds of applications to users on every type of device out there (PC, Macs, Thin clients, iPads, Androids, HTML5 browsers, etc.). I have a legacy MCSE for Windows 2000, and years of experience with Windows Server 2003, 2008, and 2008 R2. I have extensive experience with Active Directory group policies, Proxy servers, Web Servers, and Logon scripts using WSH, CMD files, and PowerShell. I have recent training in Microsoft App-V, Citrix Xenserver, Amazon Web Services, VMWare vSphere 5, OpenVPN and VDI-in-a-Box. I have recent part-time contracting experience providing Windows Server 2008 R2 IaaS servers in the cloud with Amazon AWS, OpenVPN, and a proof of concept project to provide SaaS using Xenapp and VDI for end users of a small business, including a custom web portal for them to reach their desktop from anywhere.

    Associated with: 3 Bay Consulting, LLC Agency

    $48.89 /hr
    72 hours
    4.99
  5. Jaime Tanori

    Jaime Tanori Agency Contractor

    Full Stack Javascript Developer

    Mexico - Last active: less than one minute ago - Tests: 3 - Portfolio: 1

    My interests and passion lies in finding new forms of creating amazing software, providing a great user experience by the application of advanced programing techniques and data structures. I consider myself a team and solo player, I have been involved in any kind of projects and in a wide variety of roles, I have been coding, managing teams, managing clients and development cycles, QA, automating QA testing and many more. Javascript, Backbone, Node.js, Expressjs, Grunt, Gulp, Google Maps and other Google APIs (places, directions, +, etc), Parse.com, Mandrill/Mailchimp APIs multiple social frameworks (Facebook, Twitter), truly hybrid mobile applications, mobile development with Swift (Sorry no Objective­c). I do other languages and technologies but I mainly focus on Javascript, however it is usual to find me doing other things with Raspberry Pi, Python, MongoDB, Arduino among others.

    Associated with: MktApps Agency

    $45.00 /hr
    2,684 hours
    4.97
  6. Andrey K.

    Andrey K. Agency Contractor

    Expert iOS Developer

    Russia - Last active: 1 day ago - Tests: 2 - Portfolio: 5

    More than 5 years experience in native iOS applications development using latest Apple technologies, great number of successfully completed projects including my own apps. Experience in big and complex projects for well known customers. Ability to work as a part of a big team or alone. Key knowledges: Software Architect, Design Patterns, iOS SDK, xCode, Team-Leading, Multithreaded Application Development, MVC. SWIFT: Largest experience and understanding of the modern Apple programming-language: closures, functions, optionals, structs, enums, control flow, pattern matching, data modelling, GCD, extensions Apple xCode 3-6: "Instruments" for testing: leaks, allocations, CoreData tool, Time profiler, Performance tool, Zombies, File Activity etc. C/OBJECTIVE-C: Strong Objective-C skills, modern style (GCD, ARC, blocks programming, object literals etc.). Apple’s code documentation: UI & AppStore guidelines, iOS 7 UI/UX guidelines. Memory Management, protocols, categories etc. COCOA/COCOA TOUCH FRAMEWORKS: UIKit, Foundation, CoreGraphics, CoreAnimation, CoreImage, CoreLocation, CoreMotion, AVFoundation, GameKit, MapKit, Social, CoreData, StoreKit, QuartzCore, Accounts, AudioToolbox, SDWebImage, AddressBookUI, CoreMedia, CoreVideo, MessageUI, CoreText, EventKit, SpriteKit, CloudKit and others. DATABASES: SQLite (mobile, powered by CoreData.framework), Data Modeling, Multithreaded DB management. I have the strong iOS development skills with more than 5 years experience and a large number of completed and published projects including my own products. I know how to create any custom iOS applications from the beginning till the AppStore release. KEY SKILLS: - ability to start and finish any project (have a lot of my own AppStore projects) - build easily supported, workable and stable project architecture - make UX the most user-friendly and unlocked with multithreading - pixel perfect Interface Building works - Data Modeling and DataBase management in multithreaded environment - ability to apply any kind of iOS animation  I love to produce a great products for people.

    Associated with: KickApps

    $44.44 /hr
    100 hours
    5.00
  7. Roman Yerin

    Roman Yerin Agency Contractor

    Web and VoIP(FreeSWITCH, WebRTC) engineer

    Russia - Last active: 2 days ago - Tests: 4 - Portfolio: 2

    I'm a skilled software developer and VoIP engineer with more than 15 years of experience. I'm also a full-stack developer of the convergent systems of voip and web. Playing with Freeswitch, Kazoo, SipXecs, Ruby, Perl, JS(node.js), C/C++ and much, much more - I'm always choosing tools for the task. Probably the most important thing which differs me from others - I'm never working just to gain money. I'm always doing my best to reach your goal the fastest way possible. If you've chosen a non-optimal solution I'll correct it and suggest a more efficient way. I'm never promising something that you're probably expecting to hear instead of the realistic estimate of your project. I'm never lying to my clients and I'm always giving all the information I have - transparently and on a regular basis. In one word - you can trust me as you trust yourself.

    Associated with: Coderunes

    $45.00 /hr
    540 hours
    4.82
  8. Eugene Kondratyuk

    Eugene Kondratyuk Agency Contractor

    Senior Ruby on Rails Engineer

    Ukraine - Last active: 1 month ago - Tests: 1 - Portfolio: 5

    I have 3+ years of Ruby on Rails experience and before that I was a .NET developer for almost 6 years. I do have 2+ years of experience as a team lead over small team consisting of 3-4 people. I do feel well both as frontend and backend developer. I have developed some big projects from scratch in education market, medical field and e-commerce. Also I've taken part in many small and big projects using Ruby on Rails, Angular.JS, Backbone.JS, JQuery, Redis, MySQL, PostgreSQL, Git, CoffeeScript, SASS, HAML, Bootstrap and TDD. I am interested in building quality software. Thats why I do not write code very quickly, but I do write code which is well designed, easy to understand, extend and maintain in the future. My oDesk's portfolio contains only a part of the projects in which I participated.

    Associated with: Nova Soft

    $27.78 /hr
    400 hours
    5.00
  9. Victor Vlasenko

    Victor Vlasenko Agency Contractor

    Founder and Senior Developer at SysGears

    Ukraine - Last active: 1 day ago - Tests: 4

    A senior developer with over 12 years of experience, focused on creating complex Java/Scala solutions. Especially efficient at software optimization and implementation of high performance computing systems. Fully dedicated to product quality, beauty of architecture and performance of the code. Technical Proficiencies: - Languages: Java, Scala, Groovy, JavaScript - Web Frameworks: Grails, Play 2, AngularJS - Frameworks: Akka, Spray, ZooKeeper - Databases: MongoDB, MySQL, H2

    Associated with: SysGears

    $30.00 /hr
    1,622 hours
    4.92
  10. Alex Momotyuk

    Alex Momotyuk Agency Contractor

    Senior Android Developer

    Belarus - Last active: 1 day ago - Tests: 1 - Portfolio: 2

    I am an android mobile developer with 3+ years' experience. Last time I focused on developing full stack mobile projects for Android. I have a wide range of experiences in software development using Java, C++. I am able to provide full life cycle of software engineering right from requirements gathering, design (if needed), prototype, development, testing, publishing and maintenance. I am an highly effective and reliable person able to meet the job requirements and agreed deadlines. In mid and long-term projects I like to follow TDD, version control, code reviews and other good agile practices to provide excellent results in time and build continuous and productive communication.

    Associated with: Panda Systems

    $25.00 /hr
    509 hours
    5.00