Top Upwork Freelancers

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  1. Khawar R.

    Khawar R.

    Experienced Mobile Application (Android, iOS) / .Net Developer

    Pakistan - Tests: 3 - Portfolio: 10

    A solution-oriented developer, having 5+ years experience in Mobile application development, focusing on resolving problems through software engineering with experience defining requirements, designing architecture, implementing software using test-driven design, debugging original and existing sources, and documenting the result. Coordinates well with other professionals, both inside and outside of the organization, in order to achieve results. My skill set includes the following technical proficiency: Key Areas: - Android (Applications) - iOS (Applications) - .Net (Desktop Applications) Development Environments: Android Studio, Eclipse, XCode, Visual Studio Programming Skills: Android SDK, iOS, JAVA, SQLite, AndEngine, Box2D, C#, ADO.net, LINQ.Net, C, C++ Design Development: OOP Design, Design Patterns, Database Designing, UML, QA

    $18.00 /hr
    2 hours
    5.00
  2. Ahmed Zaalan

    Ahmed Zaalan

    Software Developer

    Palestinian Territories - Tests: 3 - Portfolio: 2

    I have been doing software development for over 5 years, including web development for the last 2 years. I have worked with various technologies and programming languages including ASP.NET, PHP, Visual Basic, HTML, JavaScript, CSS, MySQL, MS SQL, jQuery, AJAX. I Also I have experience in desktop applications Using .Net Framework and Java. My goal is to continue doing software development and learn new languages and techniques along the way.

    $11.11 /hr
    3 hours
    5.00
  3. Egor Pavlovets

    Egor Pavlovets

    Android developer

    Belarus - Tests: 3 - Portfolio: 2

    Result-focused Software Engineer with the 5 years experience in mobile apps functional and automated testing as well as in Android apps development. With abilities of the proficient communication, leadership and proactive project management. Ready to work independently as well as in a team environment and success with meeting deadlines under pressure. Aim to constantly develop my professional skills in order to achieve successful outcomes through collaborative and cooperative means. A person with self motivation, enthusiasm, flexibility and CAN DO attitude. My google play projects: https://play.google.com/store/apps/details?id=com.leikyahiro.flashlight https://play.google.com/store/apps/details?id=com.leikyahiro.qc Successfully completed oDesk Android project: https://play.google.com/store/apps/details?id=com.leikyahiro.bowlingscores One more Upwork successful project: https://play.google.com/store/apps/details?id=com.leikyahiro.kundalinitimer As a QA department lead, I have gained an ultimate experience in different Android related areas, working 60+ hours per week in different roles (functional qa, automation engineer, developer) the same time: Functional testing: 4.5+ years (all types of functional testing + QA team management) Test automation: 4.5+ years (Robotium, Android Instrumentation, ADB scripting, Selenium, WatiN, self written frameworks for IE, Android and iOs) QA Team management: 4.5+ years (SCRUM, team performance tracking, activity metrics, projects state metrics, bug reports etc) Overall commercial software development experience: 7+ years (.net 2.0 C#, java, Android, Linux bash shell). I have started developing educational applications using C# in 2005, first console application in C++ was implemented in 2001, from that moment I can't imagine my life without programming. Before IT career I have worked as optic-fiber telecommunication engineer for 5 years (from 2003 to 2008)

    $18.00 /hr
    0 hours
    5.00
  4. Pavel Tisunov

    Pavel Tisunov

    Full stack iOS/Rails/PostgreSQL/Node.JS developer

    Russia - Tests: 2 - Portfolio: 2

    Take a look at my portfolio. I do iOS app development along with Web app development using Node.js, Ruby on Rails with Service Oriented Architecture, PostgreSQL, Backbone.js, Ember.js. Old overview: Over the past 9 years, I have developed various software projects from kernel-mode drivers to employee tracking and forex trading systems. My skills include experience in C/C++/Delphi/C#/AutoIt and a little of F# I have worked on system level software without any GUI as well as on various projects required GUI. My experience in GUI implementation includes pure WinAPI, WTL, MFC, WinForms, WPF. I'm fond of OOP design and TDD along with MVVM and strive to use best design and development practices. I'm seeking to build beautiful software both internally (in code) and externally (ease of use and end user satisfaction). My core competency lies in implementing rich WPF applications as well as system level C++ programming.

    $84.00 /hr
    0 hours
    5.00
  5. Tanya S.

    Tanya S.

    Java Software Engineer

    Bulgaria - Tests: 7

    Over the last 4 years I have been implementing and supporting various server infrastructure components - Portlet 2.0 Container, Web Server, etc. - and have taken care for the security of those components - that includes compliance checking, designing and implementing security patches. I have solid Java programming experience (more than 7 years) and a very extensive security related knowledge - both in application security and session management security. I am seeking opportunities to use my experience in design and implementation of stable and secure applications and in improvement of the security level of existing code. Prior to that I have 2 years experience as a team lead of Quality Management team so I am familiar with the best software testing strategies and I am capable of managing small teams. I also have some experience in the following areas: Linux/Unix administration, shell scripting - Bash and Korn shell, Informatica, Perl, Python, C#, software design and testing.

    $16.67 /hr
    0 hours
    5.00
  6. Dmytro Aleksin

    Dmytro Aleksin

    .NET Developer

    Germany - Tests: 11 - Portfolio: 1

    Designed and implemented front end, back end and database layer for custom CMS for the fine art auctions. Was team leading the small group of 3 developers and 1 qa using Scrum agile methodology. Was responsible for collaboration and communication with customer’s development team, delivering the product to the owner. Set up and supported the environment for continuous integration including SVN, TeamCity server and deployment to IIS webserver. Provided post-release support for global financial informational portal. Was working with Kanban agile methodology. The task was to improve database performance and fix critical issues. All work was made in close collaboration with the client. Designed and implemented user interface for a system aimed to manage computer systems. It was created to harvest/deploy drivers, create and deploy system images. Implemented logic to predict useful bid information for different betting systems. Developed stored procedures, business logic, web services and front end. Developed embedded modules with bets proposal with different skins.

    $22.22 /hr
    7 hours
    5.00
  7. David H.

    David H. Agency Contractor

    Citrix and Virtualizaion Systems Engineer

    United States - 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
  8. Faisal A.

    Faisal A. Agency Contractor

    Experienced Software Developer

    Pakistan - Tests: 2 - Portfolio: 5

    I have an overall experience of 15 years. I am currently working as a member of a fully distributed team for YouNeedABudget.com since March 2012 (http://www.youneedabudget.com/company/team). I specialise in backend server side development using Node with Javascript/Typescript. I have experience of working with both relational databases (PostgreSQL) and NoSQL databases (MongoDB). I have also done some front-end work using both AngularJS and EmberJS. I believe in test driven development, and use Karma and Chai extensively for unit testing. I have worked with Jenkins for CI, and use Git for SCM. I also use Vagrant for setting up development environments. I have worked with Heroku for application deployments. In the past, I have worked with Adobe Flex and Microsoft .NET technologies extensively.

    Groups: Application Developers Alliance

    Associated with: ByteSmiths

    $66.67 /hr
    5,524 hours
    5.00
  9. 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
  10. 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