Top Upwork Freelancers

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  1. Sergey Maznichenko

    System architect

    Russia - Tests: 1

    Specializing in enterprise systems and system integration. There are a lot of experience in analyzing existing IT infrastructures, as well as upgrade and optimize it, according to the analysis. A short list of vendors whose products I normally use in the projects: IBM, NetApp, VMware, Microsoft and opensource software for OS Linux, AIX, FreeBSD.

    $44.44 /hr
    0 hours
    5.00
  2. Alfred A.

    IT consultant

    United States - Tests: 1

    Over the last 10 years, I have worked as a Unix administrator for wireless industries. My expertise also includes mobile telephone switches ( CDMA ). I have also developed a wide range of websites using HMTL, DHTML, PHP, and MySQL. I also have experience as a software tester.

    $25.56 /hr
    0 hours
    5.00
  3. Lavanya Krishnamoorthy

    MS-ACCESS, MS-SQL, MYSQL, EXCEL,VBA, HTML, VB, .NET EXPERT&WEBSCRAPER

    India - Tests: 8 - Portfolio: 2

    Over the last 8 years, i have developed wide range of Desktop applications and Web applications using VB, Vb.Net, C#, Ms-Access, SQL Server and MY SQL. I also have some experience in AJAX. I am seeking opportunities to build more applications for you or your business.

    $15.56 /hr
    708 hours
    4.83
  4. Oleg Chmut

    Website QA, software testing

    Ukraine - Tests: 1 - Portfolio: 1

    Hello

    $17.78 /hr
    1,180 hours
    5.00
  5. Ezekiel Baniaga

    Ezekiel Baniaga

    Ezekiel Baniaga - Software Developer

    Philippines - Tests: 4 - Portfolio: 3

    With 5 years experience in various areas of Software Development. Concentrated on different open source technologies to provide clients with a low cost but high quality end results. Below are my mastered technologies and platforms: Enterprise: Java, NetBeans Platform, EJB, JPA, JAX-RS, Hibernate, JBoss Application Server, Apache HTTP Server, Tomcat, Jetty Reporting: JasperReports using iReport. Database: PostgreSQL, MySQL, Sybase, JavaDB, HSQL Software bug-tracking and management tools: Subversion, CVS, Trac, Kenai

    $13.33 /hr
    3,898 hours
    4.94
  6. Sergiy Bykovets

    Sergiy Bykovets

    C/C++, win32 API, DDK, TDI, WFP, Qt, BHO

    Ukraine - Tests: 2

    - 10 years experience in C/C++; - 7 years experience in Win32 API; - 5 years experience in development of windows kernel drivers; Service Description: - Client - server applications; - Desktop applications; - Windows system programming; - Windows driver development; - Network filters, firewals; - Internet Explorer addons; - Firefox plugins

    $38.89 /hr
    19 hours
    4.70
  7. Juan David Gil Diaz

    Juan David Gil Diaz

    Not Another Java Programmer

    Colombia - Tests: 6 - Portfolio: 1

    During the last years, I have been working as an employee as well as an academical student/researcher with J2EE Web and J2SE stand-alone environments. During the last year I worked for PSL (www.psl.com.co), CMMI level 5 company qualified for their good practices and awarded with the Software Process Achievement Award by the IEEE and the SEI (Software Engineering Institute). In PSL I developed some modules for a large Web proyect called Impacta, sold to a important motorcycles assembler in Colombia. Impacta is a Web application module that communicates with the company's ERP through Web-services, it has a multi-layer arquitecture that supports a with a CRM like functionality. Impacta uses JSF(Java Server Faces) for its presentation-layer, along with Ajax, in its business-layer uses pure Java integrated with Spring and Web- Services(Xfire) and in its persistence-layer, a PSL's propietary persistence framework was used against an Oracle DB.

    $25.00 /hr
    2,677 hours
    4.95