Top Upwork Freelancers

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  1. Jordi S.

    Jordi S.

    Freelance System Administrator

    Spain - Last active: 02/02/2014 - Tests: 7

    System administrator of more than 30 Linux machines - specialized in daily systems maintenance of RedHat Enterprise Linux, CentOS and derivatives. Including tasks are patching and updating, developing, installing and maintaining utility programs/shell scripts to manage application start, stop, end-of-day, monitoring and failure/recovery. Pretty much aware of all typical UNIX/Linux services, especially specialized in Samba, Sendmail, Dovecot, Apache, Perl, ProFTPD, NTP, OpenSSH, MailScanner, Squid, SquirrelMail, SPF, Roundcubemail, Milter-Greylist, Bind, Fail2ban, NFS, NetAtalk, etc. Very familiarized with HP ProLiant series and HP system management software. Perl and C system programmer - please, see 'Monitorix' at http://www.monitorix.org a pure Perl monitoring solution, see also 'Fiwix' at http://www.fiwix.org a UNIX/Linux-like hobby operating system kernel as a reference. I also work with PHP (Ncurses), Perl and Shell scripting for daily system administration. I'm driving my own GNU/Linux service company at http://www.fibranet.cat and I'm happy to provide a wide range of professional services. I also have experience embedding GNU/Linux systems on a different x86 and ARM devices for vertical rock-solid tasks.

    $23.33 /hr
    0 hours
    0.00
  2. Kristopher Matney

    Kristopher Matney

    Damn Good .Net Developer

    United States - Last active: 06/02/2014 - Tests: 3 - Portfolio: 1

    15+ years of programming experience in multiple languages. The last 12 years or so have been focused on Web Development using ASP.Net (VB and C#), JavaScript, and SQL in the Microsoft Visual Studio environment. An adept problem solver and critical thinker residing in the greater Boston area, I work efficiently and communicate effectively. I believe in delivering only quality, flexible, maintainable code to my clients. Software development and solution architecting, specializing in but not restricted to - Requirements Gathering, C#.Net, VB.Net, SQL server, database design, Silverlight, AJAX, multi-tier architecture, web services, WCF, JavaScript, PHP, and Windows Forms. Past deliverables include... - company intranet web applications - reporting system - scraping engine - invoicing system - company utilization tool - online corporate directory - corporate web sites

    $55.56 /hr
    0 hours
    0.00
  3. Azamat Galimzhanov

    Azamat Galimzhanov

    Software Engineer

    Kazakhstan - Last active: 03/26/2014 - Tests: 1 - Portfolio: 3

    Experienced Software Engineer. I specialize in rapid development of web applications. Background in game development (including AAA titles) and competitive programming. Previous work experience: - CTO \ co-founder of Inteo (http://www.inteonline.com), an online tool for helping both schools and students to teach and learn. (May 2012 - present) - CTO \ co-founder of Titleshop (http://www.titleshop.co), a market place to sell and buy customizable 3d graphics. (Mar 2014 - present) - Lead developer at GS1 Kazakhstan (http://www.gs1.kz/), building an app dealing with barcodes database at a national level. - Lead developer at TravelEasy (http://www.santufei.com), an online travelling agency. (Aug 2013 - Dec 2013) - CoreTech developer at Demonware (http://www.demonware.net), (Mar 2012 - Mar 2013) Education: - Moderatorship in Computer Science B.A. (Mod), Trinity College Dublin, 2008 - 2012

    $22.22 /hr
    0 hours
    0.00
  4. Benjamin Turner

    Benjamin Turner

    Ph.D. Geoscientist, Scientific Programmer

    United States - Last active: 08/22/2014 - Tests: 1

    I am a Ph.D. Geoscientist with deep expertise in Hydrogeology, Hydrology, Environmental Geochemistry, and related areas, who has been programming scientific software programs since 1992. I am especially skilled at conceptual and mathematical modeling of hydrologic and hydrogeochemical processes. I have been computer programming for over 30 years, and have been doing scientific programming since 1992. In addition to working as a Geoscientist, I taught Computer Science and Mathematics at Penn State for several years. One of my published software packages is ProtoFit, a scientific data analysis and modeling package with over 7800 downloads to date.

    $70.00 /hr
    0 hours
    0.00
  5. Kirill Suboch

    Kirill Suboch

    Python Developer

    Russia - Last active: 10/22/2014 - Tests: 2

    Hello, my name is Suboch Kirill and I'm a Python Developer. I started my Developer career in 2008 joining the team which developed document management system for my university. Afterwards in 2010 I took a job in design bureau and used my developer skills to automate design and engineering calculations in heavy machinery and engine construction. Since 2013 I became a Python developer in geo information systems (UI and Data Analysis modules). My strong points are creativeness and troubleshooting ability. I believe that every collaboration must be productive.

    $15.00 /hr
    0 hours
    0.00
  6. Donovan F.

    Donovan F.

    Cloud Engineer and Linux Expert

    South Africa - Last active: 5 months ago

    I am an accomplished Systems Administrator with over 13 years professional experience building infrastructure and platforms for small web hosts, the enterprise data center and the cloud. My primary specialties are Linux systems, open source software, and cloud platforms. I began my career integrating Linux systems and varies opensource technologies for Internet Service Providers and Telecommunications providers. I realized that integrating programming/scripting into my skill set would automate and provide easy of implementation to many of my projects. Here is a brief sampling of skills and technologies I am currently (2015) working with: Linux - RHEL, CentOS, Ubuntu, and FreeBSD Datastores - MySQL, PostgreSQL, Memcached, Redis, MongoDB Monitoring - Nagios, Munin, Cacti, Shinken Management - Chef, Puppet Platforms - AWS, Rackspace, OpenStack Frameworks - Rails Lanaguages - Ruby, Python, Perl, PHP SCM - Git, SVN

    $27.78 /hr
    6 hours
    0.00
  7. Maria Vélez

    Maria Vélez

    Associate Degree in Business Administration and Finance

    United States - Last active: 3 months ago - Tests: 4

    I am trained in management and finance, strategic marketing, sales and quality control systems. I am a proactive individual and team player. I am always ready to face new challenges both individually and as a team. I believe in continuous improvement. My work experience as an advertising manager in a leading media company has given me skills in the areas of human resources, inventory management and investment as well as in public relations with customers and leading business.

    $12.00 /hr
    6 hours
    3.20
  8. William Jones

    William Jones

    Salesforce Certified Administrator

    United States - Last active: 2 months ago

    More than 5 years programming, supporting and providing application development experience for Sales/Marketing business areas of a Fortune 500 company. Salesforce.com Certified Administrator. Salesforce Adminstrator Created and maintained users, profiles and roles Maintained system data integrity through utilization of reports, de-duplication methods, best practices enforcement and interaction with data owners. Supported marketing campaigns and mass e-mail blast Assisted in designing management (global and regional) and staff KPI reports/dashboards Designed/Implemented sample request process and object which utilized Salesforce workflow capabilities and Apex code. Trained regional administrators and assisted in daily user issues Active project management member in each regional implementation (EMEA, NA, SA and APAC regions).

    $44.44 /hr
    4 hours
    0.00
  9. Evgeniya Vasilyeva

    Evgeniya Vasilyeva

    Media Content Analyst

    Russia - Last active: 01/28/2014

    - inspect provided media content for the quality, notably: image sharpness, accurate exposure, the lack of color noise and software filters, and the availability of similar images; - measure the value of provided media content, whether an image corresponds to conventional aesthetic norms and is in high demand in the micro stock market.

    $10.00 /hr
    0 hours
    0.00
  10. Alfredo Solano

    Alfredo Solano

    Database and System Administrator

    United States - Last active: 05/14/2014 - Tests: 2

    I am a seasoned database and system administrator with over 20 years of experience. If you're looking for simple stand alone programming or strategic enterprise implementations or anything in between, you've found the right person. I have developed and maintained various applications using Microsoft Access and VBA. I've been fortunate to take part in many enterprise level software implementations including Computerized Maintenance Management Systems (CMMS), Laboratory Information Management Systems (LIMS), Geographic Information Systems (GIS) using ESRI products, and PeopleSoft Systems (HR and FSCM). My part in these projects included both technical and project management duties. On the back end I sized, installed, and configured the UNIX (AIX, Solaris, and Linux) and Windows servers. I installed and configured the Oracle databases for these applications. Oh and of course, production maintenance for all the above is also included.

    $80.00 /hr
    1 hours
    0.00