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. Clint C.

    Internet Security - SonicWALL Adtran Cisco

    United States - Last active: 18 days ago - Tests: 2

    I am a self-driven, highly-analytical SYSTEM/NETWORK/SECURITY ADMINISTRATOR with 18 years of progressive experience helping companies improve organizational security and effectiveness. Adept at the design, architecture, development and maintenance of high-performing secure networks. My skills in the area of systems/network security and administration are complemented by my certifications as a Certified SonicWALL Security Professional, Microsoft Certified Systems Engineer, Cisco Express Foundation Sales Specialist and Apple Certified Systems Administrator. I am proficient in Windows XP/Vista/7, Windows Server NT/2003/2008, Exchange 5.5/2003/2007, Apple OS X Server/OS X workstation, Dell/HP/IBM and Apple servers, Cisco routers/switches and firewalls, Adtran routers and switches, SonicWALL firewalls/email security appliances and SonicPoints, Barracuda appliances, DHCP, DNS, VPN, SSL-VPN, LDAP, Active Directory, SMTP, OWA, HTTP, HTTPS, IIS.

    $80.00 /hr
    10 hours
    5.00
  3. Alexey L.

    Java EE, PHP, C# Developer

    Ukraine - Last active: 2 days ago - Portfolio: 6

    I have 7 years of C++, Java, and PHP experience. I do my work in detail-oriented and methodical way. I work from my home office in Kyiv, Ukraine. I like to spend time designing and programming nice and clear code. I had three years of full-time professional programming experience in C++ in Continental Corporation. In few years since, I've been working as freelancer on contract programming work.

    $20.00 /hr
    2 hours
    4.99
  4. Jay Prakash Sarma

    Jay Prakash Sarma

    droidlabour

    India - Last active: 12 days ago - Tests: 1 - Portfolio: 2

    Programming Skills 1. PHP 2. Python 3. Bash Script 4. Scala/JAVA System administration 1. Linux [RedHat, CentOS, Ubuntu] 2. Amazon Web Services 3. Rackspace 4. Digital Ocean 5. Vagrant Scalable tools 1. ElasticSearch 2. Puppet/Chef 3. Redis 4. MongoDB Deployment 1. git 2. Continuous integration Iam starting from scratch at oDesk. My other freelancer experiences can be found at freelancer.com Here is my profile URL: https://www.freelancer.com/u/joystick220.html

    $28.00 /hr
    0 hours
    5.00
  5. Priyanka B. Agency Contractor

    Professional .NET Developer

    India - Last active: 1 day ago - Tests: 4

    ☆☆☆ Your One Should Be Unique! ☆☆☆ I spent over 9 years now in .NET application development a huge number of sites, Window based applications and some of those are for PEPSI Co, CCH (USA), Palmetonet, Environment Agency (UK). My main skills are at C#.NET, ASP.NET, HTML5/CSS3, JQuery, SQL Server. I specialized in ASP.NET, MVC applications. I always look for a long-term relationship with trusts! Your Success Is My Success!

    Associated with: Priyanka Brahmvar

    $16.67 /hr
    1,518 hours
    4.92
  6. Stefan Stoichev

    Stefan Stoichev

    QlikView Developer

    Bulgaria - Last active: 10/23/2013 - Tests: 1

    Worked as QlikView developer for the past 6 years. Extract data from various datasources such MsSQL, MySQL, Access, Oracle. Own the QV 11 Designer and Developer certificates.

    $19.00 /hr
    10 hours
    5.00