Top Upwork Freelancers

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  1. Sergey M.

    Sergey M.

    Developer

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

    I like complex algorithms and data structures programming. Such as Rebalancing after deletion in B-tree, Monte Carlo simulation and over. The way where I want to work in near future is Methods of Optimization.

    $14.44 /hr
    1,045 hours
    5.00
  2. Eugene Viljoen

    Eugene Viljoen

    Developer

    South Africa - Last active: 6 months ago - Tests: 7

    I have been programming since 1980 with Fortran , Pascal, Delphi and C experience. I have excellent experience in MS-SQL Server as well as exposure to Oracle, Sybase, Informix and Firebird. I am seeking opportunities for Windows and Mobile development, database administration and Business Intelligence.

    Groups: AspDotNetStorefront

    $15.00 /hr
    627 hours
    4.77
  3. Diego Alejandro Viana Colorado

    Diego Alejandro Viana Colorado

    Web developer

    Colombia - Last active: 04/21/2013

    I am currently studying sistematizacion of data in Politecnico Colombiano Jaime Isaza Cadavid. I enjoy programming and I'm always so excited to learn and contribute my knowledge. I am resourceful, energetic and able to work in teams. I like to propose new ideas and try to improve processes.

    $8.89 /hr
    33 hours
    5.00
  4. Walker Leite

    Walker Leite

    Linux System Administrator

    Brazil - Last active: 08/21/2014 - Tests: 2

    Student of Computer Science, working with GNU/Linux since 2007. Expert in Debian/CentOS-Redhat web/database server installation and administration. Knowledge in PHP, HTML, CSS, javascript, Bash scripts, Perl, Mysql. Today, manages Cloud Amazon AWS EC2, RDS, Loadbalancer and Autoscaling services for Praiseweb (hosting provider), and their clients.

    $15.00 /hr
    13 hours
    4.80
  5. Hans W.

    Hans W.

    Senior System Engineer

    United States - Last active: 5 months ago - Tests: 2

    Accomplished System Administrator with 16 years of experience in research and instructional computing support. Comprehensive experience with Linux, Windows and Solaris. Specialties * Enterprise System Administration * Storage Management * Network Engineering * Datacenter Operations

    $44.44 /hr
    679 hours
    5.00
  6. Lukman Hakim

    Lukman Hakim

    Expert PHP/Mysql/HTML/CSS/JQuery and mobile web based application

    Indonesia - Last active: 10/10/2012 - Tests: 4 - Portfolio: 1

    Over the last 8 years, I have experienced on HMTL, CSS, JQuery, PHP, and MySQL including development and bug fixing. I give courses of these fields at some universities. I also have some experience in the following areas: HTML5, CSS3, SQL, Ajax, and DBMS.

    $22.22 /hr
    428 hours
    5.00
  7. Yuri H.

    Yuri H.

    Programmer / Developer

    Bolivia - Last active: 11/28/2012 - Tests: 7 - Portfolio: 7

    With over eight years of experience in many kinds of applications and automation tools. Strong knowledge of Microsoft .Net and latest web technologies. My goal is to serve persons with the computers and a complete client satisfaction with the result of the work.

    $17.00 /hr
    154 hours
    5.00