Top Upwork Freelancers

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  1. Valentin Filip

    Valentin Filip

    Senior iOS Developer

    Romania - Last active: 06/02/2014 - Tests: 1 - Portfolio: 6

    I'm looking to deliver quality software expertise to employers and help them obtain the product that they desire. With almost 6 years of experience under my belt, I am able to help customers shape their ideas. The last 3 years I have concentrated on iOS and have had the opportunity to build fully fledged applications, both for broad audiences and for business/healthcare/leasing environments. I have also been involved in the improvement of a mobile ERP client for SAP. I have started my career with 2.5 years of Web technologies work including Javascript, xHTML, CSS, XML. My main focus is the development of iOS applications and giving support for ones that need improvement.

    $33.33 /hr
    161 hours
    5.00
  2. Konstantin Kozlovskiy

    Konstantin Kozlovskiy

    EatingPeopleIsFun ~_~

    Russia - Last active: 07/10/2014 - Tests: 2 - Portfolio: 5

    Professional skills: The programming experience in language C # - 6 years, in Java - 2 years. Programming languages​​: C #, Java, C++, PHP, Javascript, Lua. Markup languages​​: HTML, CSS, XML, XAML, Markdown. Data languages: SQL, DDL, DML. ORM systems: Entity framework, Hibernate, nHibernate. The main direction:. NET Framework and Microsoft technologies. Desktop: Console application, Windows Forms, WPF, XNA, Windows services. Web: ASP.NET, WCF, Silverlight, ADO.NET. Using programming patterns: MVC / MVVM. Experience in database administration, working under the control of DBMS: MSSQL, MySQL, Oracle, Microsoft Access. Experience with the following operating systems: Windows 95/98/XP/Vista/Seven/8/8.1/Server 2003/Server 2008/Server 2012 FreeBSD, Ubuntu. Experience with revision control systems: Subversion, Git. Experience with project-management systems: Assembla, Jira, Redmine. The experience of work with CMS Joomla 3 years, Wordpress 2 years. Using Tools: Office: Microsoft Word Microsoft Excel Microsoft Visio Microsoft Access Microsoft Power Point Development environments (IDE): Microsoft Visual Studio 2005/2008/2010/2012/2013 Microsoft Expression Studio 3/4/4.5 Zend studio IntellijIDEA 12/13/14 PyCharm 3.4.1 PL SQL Developer Audio / Video / Graphic Editors: Adobe Photoshop Adobe After Effect Adobe Audition Pentest and vulnerability analysis: Scanner: Acunetix / SkipFish Traffic analysis: Wireshark / Fiddler2 Picture analysis: IEXIF, Steganography, LSB Reverse-engineering: IDA pro / OllyDbg / ILSpy / ildasm / dotPeek Other: Virtual Box and VMware experience, prepared virtual machines for clients.

    Groups: LoginRadius

    $30.00 /hr
    2,110 hours
    5.00
  3. Gennadiy Karpunov

    Gennadiy Karpunov

    Programmer / Developer

    Ukraine - Last active: 08/30/2013 - Tests: 6 - Portfolio: 9

    Over the last 3 years, I have developed a wide range of application using Java, GWT, Sencha Touch, Flash AS3 and Flex technologies. I was a team member in Java projects and lead in Sencha Touch project. I've done many projects using ActionScript 3 and Flex, and complex 3D project using Flash Molehill and AlternativaPlatform.

    $25.00 /hr
    5,573 hours
    5.00
  4. Paul M.

    Paul M.

    Multi-disciplined Development Engineer

    South Africa - Last active: 6 months ago - Tests: 5

    I have been involved in software and hardware product development in the electronic manufacturing industry for the last number of years. Primarily this focus has been on embedded development on ARM with C++ but also Java, C# and PHP for testing, prototyping and for the development of other products and services. I have also worked in the research sector, around the field of space science and astronomy instrumentation. My strong background in electronics and software development is complimented by more than a decade of experience using open source tools and systems to deliver robust and scalable solutions to industry. I would be interested in endeavours where I can leverage my skills and expertise to create lasting customer value.

    $55.56 /hr
    51 hours
    5.00
  5. Mainul Islam

    Mainul Islam

    Enterprise Java/JEE Architect

    Bangladesh - Last active: 03/20/2013 - Tests: 12 - Portfolio: 3

    I have been designing and developing enterprise business application using Java EE, Spring, Hibernate, GWT, JSP, JSF, Oracle/MySQL, PHP, JavaScript, Eclipse RCP etc for more than 10 years. I have worked in desktop application, server side programming and web technologies. I worked as individual and also acted as team manager. I am looking for opportunities where I can leverage my experience and knowledge to deliver best quality software in terms of design, code and usability.

    $33.33 /hr
    128 hours
    5.00
  6. Mariusz Z.

    Mariusz Z.

    Penetration Tester, Linux/UNIX Security Admin,Intrusion Analyst, CISSP

    Poland - Last active: 3 months ago - Tests: 9 - Portfolio: 1

    I'm Linux Security Administrator & Web Application Penetration Tester with 8 years of experience in the IT field. I'm CISSP (ID# 478556) and OWASP member. My expertise ranges from designing, building secure & robust systems to analysis of subtle software security flaws. I can help you with: - thoroughly security testing your web application (black-box and/or white-box tests) and helping in mitigating detected vulnerabilities - analyzing and assessing vulnerabilities in your application's underlying IT infrastructure - security hardening Linux/UNIX servers/clusters - recommending solutions and best practices on how to design and maintain secure AWS infrastructures - responding to security incident in Linux/UNIX environment, helping in recovery process (rootkit detection, malware removal, etc.)

    $19.00 /hr
    123 hours
    4.79
  7. Harsha Halgaswatta

    Harsha Halgaswatta

    Advanced Java/JavaEE Engineer

    Singapore - Last active: 5 months ago - Tests: 1

    Well versed Java/JavaEE developer having more than 6+ years of hands on experience in Play Framework, MongoDB, RabbitMQ, SOAP, JAX-WS (WS-*), MySQL, Redis, NodeJS, Bootstrap, Spring, Hibernate, Google API, XSLT, Shell Scripts. Besides that I have done many Enterprise Integrations with e-Commerce platform with ERP and WMS using Java. Further I have contributed to many open source projects and clients in different domains. I love to use my free time in productive works helping people around. http://www.linkedin.com/pub/harsha-halgaswatta/38/a99/196

    $20.00 /hr
    238 hours
    4.78
  8. Konstantin Yarosh

    Konstantin Yarosh

    Software Developer

    Belarus - Last active: 11/11/2014 - Tests: 3

    I've worked on different kind of projects over the past 4.5 years. Customers for that projects were Thomson Reuters and some small business accounts. On that projects I've worked with following server side technologies: ASP, ASP.NET, MS SQL, ADO.NET, .NET 3-4.5, LINQ, ENT LIB, with some amount of front-end technologies: HTML, DHTML, JS, AJAX. I'm looking for job opportunities with development from the scratch, additional development, bug fixing.

    $17.78 /hr
    248 hours
    4.40
  9. Denis Sataev

    Denis Sataev

    Flash developer

    Russia - Last active: 4 months ago - Tests: 4 - Portfolio: 9

    I'm a flash developer with a passion for gaming and motion-design. I'm working with flash since 2004. My competence includes: ActionScript 3/2; frameworks - Feathers, Starling, Box2d, MadComponents, MinimalComps, Citrus, Greensock (and other tweening engines); mobile AIR (iOS, Android); Flash, FlashBuilder, FDT IDEs; source version control (svn, git); Despite being a programmer, I am very careful when working with graphics and try to optimize flash content usually.

    $15.00 /hr
    186 hours
    4.74
  10. Plamen D.

    Plamen D.

    .NET & database developer

    Bulgaria - Last active: 08/19/2013 - Tests: 4 - Portfolio: 3

    Certified professional web developer with 5+ year experience creating business applications. Quality and correctness - these describe my work best. I can create or modify applications for you in the following technologies: - .NET (such as ASP.NET, MVC3, ADO.NET, Web Services, Windows Communication Foundation, Entity Framework, LINQ) - SQL Server 2005 - 2008 programming (stored procedures, functions, triggers) - Front-end development with jQuery and many other libraries for complete application

    Groups: Microsoft Certified Professionals

    $15.00 /hr
    136 hours
    4.73