Top Upwork Freelancers

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  1. Sergio Pulgarin

    Sergio Pulgarin Agency Contractor

    Software Engineer

    Colombia - Tests: 8 - Portfolio: 3

    Providing clients around the world with high quality services in Software Design, Engineering and Development. I have a degree in Electronic Engineering; I have excellent Software development, and Networking skills. My area of expertise is design, engineering and development of Software applications with Networking functionality, use and design of functionality exposed through web APIs. Additionally, I'm experienced in the following areas: - Networking applications: TCP Servers, Sockets, Network requests, Web viewers, Web APIs. - Webkit development for full integration of Web and Desktop applications. - GUI development: Native looking user interfaces. - Filesystems: Creating, reading and writing, text and custom data types. - SQL Database handling for desktop and web applications. - SkypeKit application development. - Server side web applications using Django. I have experience in Object-Oriented design and use better coding practices; I always keep in mind readability and reusability. I also deliver documented sources, when required.

    Groups: LoginRadius

    Associated with: SOLID, GSOLID

    $33.33 /hr
    732 hours
    4.95
  2. Hany Medhat

    Hany Medhat Agency Contractor

    C#/C++/ASP.Net/PHP/ Professional developer

    Switzerland - Tests: 3 - Portfolio: 4

    Over the last 3 years, I have been developing software applications in different domains like desktop applications for small businesses and websites for different applications. I have experience in the following areas: Object oriented design, design patterns, software architecture, C/C++, C#, ASP.NET, PHP, Zend, MySQL, MSSQL, jQuery and others. My core edge lies in applying my experience and skills to develop software solutions that satisfy various client's needs and to establish solid relationships with my clients.

    Groups: Application Developers Alliance, MailChimp Experts Group

    Associated with: Gioventy

    $27.78 /hr
    2,776 hours
    4.98
  3. Oleksandr K.

    Oleksandr K. Agency Contractor

    Mobile, Desktop and DSP developer

    Ukraine - Tests: 6 - Portfolio: 10

    Over the last years I've been developing apps for iPhone, although, most of the apps I developed are still under NDA. Previously I've been developing DSP solutions (mostly digital image and audio processing algorithms) and industrial control systems. I like iPhone development, as there is some challenge because of the limited processing capabilities, but it is still fun. My core competencies are DSP systems and along with all sorts of non-web apps. I also have experience in the following areas: software architecture, OOP, FPGA-development.

    Associated with: IDAP Group

    $33.33 /hr
    555 hours
    4.76
  4. Ostap M.

    Ostap M. Agency Contractor

    Java Developer

    Ukraine - Tests: 3 - Portfolio: 3

    I am Java Developer with more 3 years of experience. I have developed many projects using modern frameworks and able to learn new one quickly if needed. Before I worked as team member developing networking client-server application and some web projects using MVC frameworks or plain JSP/Servlets. Languages : Java, Python Technologies : JSP, Servlets, JDBC, Web Services, REST Databases : MySQL Frameworks/Libraries: Spring, Hibernate(JPA) , JUnit, JavaFx, Netty Design skills: OOP, Gof patterns, UML Software Development Methodology: Agile, XP, TDD Tools: Maven, SVN, Git, Jenkins IDE: Intellij Idea, NetBeans Other: HTML, JavaScript, jQuery, XML, JSON, JIRA

    Groups: Corona Labs

    Associated with: Progost

    $22.22 /hr
    189 hours
    4.15
  5. Alexander G

    Alexander G Agency Contractor

    Software Developer

    Armenia - Tests: 5 - Portfolio: 6

    Professional Experience 02.2013 to present Simply Technologies Position: Senior Software Developer Yerevan, Armenia 02.2008 to 02.2013 Macadamian AR Position: Senior Software Developer Yerevan, Armenia 08.2006 to 02.2008 Synopsys LLC (SEG Department) Position: Software Developer Yerevan, Armenia 08.2002 to 06.2004 HPLA LLC Position: Software Developer Yerevan, Armenia Projects Yidio video search engine Mac OS Snow Leopard 10.7, Objective C, Xcode 4.5.2, iOS SDK 5.0+ Implementing Yidio application for iPhone. Yidio is the platform for the discovery, consumption, and socialization around entertainment and digital media. Blackberry 10 support for Titanium Studio Windows 7, QNX QDE, v8 JavaScript engine, BB Cascades Porting the Titanium Mobile SDK codebase to BB10. CorelDraw X6 version maintenance Windows 7, VS 2010 Development and maintenance. FAA NAS Voice Switch Linux Fedora 14 with QT 4.7 Implementing SIP extension based on SIP stack from Media5. Cisco Umi telepresence extension for mobiles MacOS 10.6, Java, iOS SDK 3.2+ Implementing Cisco Umi telepresence extension for iPhone/iPad. Flip Share Project on Android and BlackBerry devices Windows XP, Java, Eclipse IDE 3.4.2, Android SDK 1.5, BlackBerry JDE Video streaming. Web client UI design and implementation for Android and BlackBerry devices. Human resource time-tracking system extension Windows XP, C#, WCF/WPF, VS2008, SQL Server 2005, SVN Team lead of 3 resources. Design and development of desktop extension of existing web-based time-tracking system. ChoiceStream, Web Recommendation Manager Windows XP, Linux, Aptana Studio, Ruby on Rails, JavaScript, RSpec, Selenium, Tomcat, Mongrel, MySQL, Perforce Secured website development, test automation. Handling technical design issues. Nortel PC Client AS5300 Services Project Federal Project containing base Nortel PC Client, including new features for federal purposes. Nortel PC Client maintenance Windows, MS VS2003 PC-based application: telephone service, video calling, instant messaging, real-time call disposition, conferencing, file sharing and white boarding. Personal Projects iPhone application development Mac OS Snow Leopard 10.6, Objective C, iOS SDK 3.1 Streaming video client UI design and implementation, based on web services providing by customer. Alarm Clock for iPad Mac OS Snow Leopard 10.6, Objective C, iOS SDK 3.2+ http://itunes.apple.com/us/app/alarm-clock-with-flashlights/id413649717 http://itunes.apple.com/us/app/cool-alarm-clock-day-reminder/id504174371 http://itunes.apple.com/us/app/alarm-clock-day-reminder/id547232326 Compass application for iPhone, iPad devices Mac OS Snow Leopard 10.6, Objective C, iOS SDK 4.3+ http://itunes.apple.com/us/app/compass-pro/id458958949 Speedometer application for iPhone, iPad devices Mac OS Snow Leopard 10.6, Objective C, iOS SDK 4.3+ http://itunes.apple.com/us/app/speedometer-s54-speed-limit/id483710281 Zombie Detector (Smart Camera) Mac OS Snow Leopard 10.6, Objective C, iOS SDK 4.3+ https://itunes.apple.com/us/app/zombie-detector-smart-camera/id552760128

    Associated with: ARARAT

    $16.67 /hr
    155 hours
    4.87
  6. Bilal Ahmad

    Bilal Ahmad

    Expert ios developer

    Pakistan

    i am a software engineer and currently working on a private software house, and make many apps for my company as well as for online client. i have a great experience in ios developing and can make good quality apps with better result.

    $15.00 /hr
    4 hours
    5.00
  7. Max R.

    Max R.

    Flash Platform Developer

    Ukraine - Tests: 4 - Portfolio: 3

    Flash Platform Developer focused on Mobile development. Over 9 years of ActionScript programming including Flash/AIR platforms and Flex framework. Familiar with basic of iOS and Android platforms, and web-development standards. Have one year experience as Tech Lead in 5-person team. Good team player with understanding Agile standards.

    $22.22 /hr
    6 hours
    5.00
  8. Christopher Jinks

    Christopher Jinks

    Advanced 1st & 2nd Line systems analyst

    United Kingdom - Tests: 2

    I can provide 1st and 2nd line systems support to an outstanding standard with impeccable customer service. These include, but are not limited to; -Software -Hardware -Networking -Operating systems -Virtualisation -Thin Client -Microsoft Office packages -Password retrieval -Scripting

    $8.33 /hr
    8 hours
    5.00
  9. Aram K.

    Aram K.

    C++ Developer

    Armenia - Tests: 3

    Software Developer C/C++ More than 3 years of professional expertise in: - C, C++ Unix / Linux developer with good understanding of: - Low-level programming. Optimizations of JavaScript JIT compilers - WebKit, V8. Theory and practice in: - Algorithms, Data Structures, Design Patterns Familliar with C#, Python, JS

    $12.00 /hr
    4 hours
    5.00