Top Upwork Freelancers

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  1. Serhiy T.

    Serhiy T.

    Linux, FreeBSD, Windows, Network, Apache, MySQL System Administrator

    Ukraine - Last active: 03/05/2012 - Tests: 12 - Portfolio: 1

    - Operating systems: FreeBSD, openSUSE, Red Hat, CentOS, Debian, Ubuntu, Gentoo, Windows: 2000/2003/XP/Vista/7, Mac OS X: 10.4-10.6 - Programming languages (basic level): Bash, PHP, Perl, SQL, C, Objective C, html - Network protocols: TCP, UDP - Network services: DNS, FTP, HTTP, HTTPS - Web Servers: Apache, Nginx, Tomcat - MTA: Postfix, Qmail, Exim - FTP Servers: Pure-ftpd, Proftpd, vsftp - Firewalls: ipfw, ipchains, iptables - Network tools: route, iproute2, natd, tcpdump, netcat, trafshow - Databases: MySQL, MSSQL, Redis - Network file systems: GlusterFS - Virtualization: OpenVZ, Xen, VMware, Virtual PC - Version Control Systems: Subversion - Control panels: cPanel, WHM, Plesk - Monitoring systems: Nagios, Zabbix, Monit, Munin, Cacti - Cloud services: Amazon EC2 - Bug tracking systems: Mantis, Redmine, Trac, Jira - VPN: Mpd, OpenVPN, PPTP - Other software: Squid, Samba, Bind, Radius, Varnish, HAproxy, Wowza Media Server

    $33.33 /hr
    44 hours
    5.00
  2. Syed M.

    Syed M.

    Java EE Developer

    India - Last active: 03/28/2012 - Tests: 2

    I have seven years of experience working as a Software Engineer and System Administrator in the United States. During this time, I have played a leading role in every aspect of the software development lifecycle, from requirements gathering and design to deployment and maintenance. I have developed both desktop and web applications. I am also a Sun Certified Java Programmer and OMG-Certified UML Specialist.

    $33.33 /hr
    588 hours
    5.00
  3. Michael Paulukonis

    Michael Paulukonis

    C#, ASP.NET, JavaScript Software Engineer

    United States - Last active: 08/14/2014 - Tests: 2 - Portfolio: 5

    I have have been programming professionally in C#, ASP.NET, JavaScript and VB6 (!!!) since 2003. I love to tease out solutions for unusual customer requirements, to untangle tangled legacy code, to solve problems, and to look back years later and see that it still works, and is still maintainable. I'm particularly interested in helping you with your wiki (PmWiki, Screwturn) or JavaScript * Programming - C#, JavaScript, jQuery, PHP * CMS - PmWiki, Wordpress, ScrewturnWiki * Web Design - HTML and CSS * Forms Design and Programming - Frevvo

    $55.56 /hr
    14 hours
    5.00
  4. Jose Arteaga

    Jose Arteaga

    Cisco Telecommunications Engineer - Powering productivity through Comm

    Venezuela - Last active: 5 months ago - Tests: 6

    Who I am... Network Engineer with 5+ years of experience working with a variety of technologies from different vendor like Cisco, VMware, Microsoft, Watchguard, Barracuda, etc. I had designed and implemented networks from scratch starting on the infrastructure (Routing and Switching), Security and finally the Applications (Unified Communications and Collaboration). My Mission... I specialized on designing and implementing network solutions for small, medium and large businesses in many different vertical markets like the oil and gas industry, banking, food and beverages industry and others. I had achieved customer satisfaction 100% of the time and exceeded their expectations while staying on-budget, meeting deadlines and finding new business opportunities inside the company and the customers. Always looking for the biggest challenges that help me excel myself not only in the networking field, but also in the business management side of the company making myself an integral and interdisciplinary engineer capable of achieving the impossible.

    $50.00 /hr
    257 hours
    4.99
  5. Dmitry B.

    Dmitry B.

    MS SQL, OLAP/DWH, VB, ASP, Project Management

    Switzerland - Last active: 02/02/2009 - Tests: 2

    Microsoft Certified Professional, Brainbench Transcript ID#: 2566487 Fundamental knowledge of relational databases, object oriented analysis, design and programming.Strong knowledge of Business Obects, Microsoft Visual Basic, Microsoft SQL Server.Wide experience in COM, DCOM, ActiveX, OLE, WIN32 API.Experience in design and development of client-server, three-tier and multi-tier applications.Basic knowledge and experience in project management.More than 6 years of successful experience of applications development in the field of accounting systems, workflow systems, as well as integration of various technologies in the completed software product. Last years - OLAP, data warehousing, business intellegence.Self-motivated, hard- working, sociable, resourceful and able to quickly grasp new technologies. please find my latest CV at [http://dmitrybiryukov.awardspace.com][1] [1]: http://dmitrybiryukov.awardspace.com

    $39.94 /hr
    183 hours
    4.20
  6. Antonio S.

    Antonio S.

    Software Engineer

    Italy - Last active: 03/24/2014 - Tests: 6 - Portfolio: 3

    Over the last 7 years, I have developed a wide range of web applications using HMTL,CSS,JQUERY, PHP, and MySQL. My core competency is DRUPAL development. I am seeking opportunities to build websites from the ground up or develop custom modules. I also have some experience in the following areas: SQL, Ajax, OOP, ASP, C++, C#, ASP.NET, IIS, APACHE, linux administration.

    $24.44 /hr
    158 hours
    4.97
  7. Martin D.

    Martin D.

    Frond End Developer

    Macedonia - Last active: 10/16/2014 - Tests: 1

    I'm a front-end developer from Macedonia with strong experience in HTML5, CSS3, JavaScript (JQuery) and Bootstrap. In the past 4 years I`ve been developing (and designing from time to time) websites that work great across all devices and platforms. Although I`m dedicated on the technologies mentioned above, I`m am familiar with: Basic PHP, AJAX calls and MVC patterns.

    $22.22 /hr
    181 hours
    5.00
  8. Muhammad Emam

    Muhammad Emam

    Software Engineer

    Netherlands - Last active: 3 months ago - Tests: 6 - Portfolio: 3

    Who I am: Software Engineer with extensive experience in Python programming, Cloud Computing, NoSQL datastores and large-volume data analytics. What I do: - Designing and implementing highly scalable, highly available software. - Analyzing business data-models and building appropriate analytics platforms. - Maintaining and developing existing systems to help businesses achieve lower Time To Market.

    $44.44 /hr
    268 hours
    5.00
  9. Mihail K.

    Mihail K.

    UNIX/Linux administrator

    Belarus - Last active: 3 months ago - Tests: 5

    I love UNIX! I love one-line shell scripts! I work with Debian, RedHat, HP-UX. Little with OpenSolaris and FreeBSD. I have experience in creating and supporting monitoring systems based on Zabbix and Nagios (several tens of servers with different OS). I am well familiar with network protocols and tools for testing and troubleshooting (wireshark, tcpdump, nmap, traceroute, etc.). I have experience in creating secure VPN tunnels based on OpenVPN, IPSec, L2TP/IPSec, GRE and PPTP. I was installing and configuring lighttpd, apache httpd, nginx, exim4, dovecot, samba, OpenLDAP, etc. I have experience with creating mail servers used in hosting company for many customers. I was working with virtualization Xen, KVM, VMware. Have experience with cloud services like Amazon EC2. I have experience in installing and configuring Oracle 10g, 11g, PostgreSQL, MySQL.

    $16.67 /hr
    88 hours
    4.97
  10. Juan Manuel García Del Moral

    Juan Manuel García Del Moral

    Sr Unix/Linux Management and Infrastructure Expert

    Argentina - Last active: 11/09/2014 - Tests: 2 - Portfolio: 6

    I have 12 years of experience in Unix/Linux Administration and Development. During this time, I've developed professional solutions using the following technologies: Linux, Unix, Perl/Bash Scripting, Apache, MySQL, PHP, Tungsten Replicator, XEN, VMWARE and more. My main goal is to become your preferred IT partner when you need to get any project done. I want to build a strong and long term working relationship with increasing benefits to both parties. I strive on customer satisfaction regarding: - Time and Cost Effectiveness - Quality Assurance - Outstanding product performance - Fluent and Friendly Communication - Availability.

    $25.56 /hr
    329 hours
    4.92