Virtuoso Freelancers

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Virtuoso oDesk freelancers typically receive a client rating of 5.00.

5.00
Last updated: April 1, 2015
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Alexey Pechnikov

Alexey Pechnikov

Computer Vision & Simulation, Algorithms & Statist...

Russia - Last active: 1 day ago - Tests: 6 - Portfolio: 7

I have a Master's degree in radiophysics and electronics. In addition to fundamental mathematics and physics knowledge I specialized in computer simulation and computer vision technics. My experience ranges from research to applications. I prefer simple solutions and reliable technologies. I make compact and fast applications having a vast background in producing firmware for embedded devices with relatively small RAM, slow CPU, and very long uptime. Cross-platform programming is not hard, it is the only way :) In addition, I am expirienced in full-stack development: C programming of RDBMS (SQLite), server-side programming (C/Tcl/shell scripting/etc.), client-side programming (Tcl/Tk), web programming (JavaScript, jQuery, HTML5, css), mobile programming (PhoneGap).

$49.99 /hr
268 hours
5.00
Oleksandr N.

Oleksandr N.

Senior System Administrator, Security officer, Mig...

Ukraine - Last active: 19 hours ago - Tests: 20 - Portfolio: 16

YOUR POSITIVE FEEDBACK IS THE HIGHEST AWARD FOR ME ;) Will do my best to assist you in any questions and tasks you may have =) Here is some info about my experience. SUMMARY Specialties: Information Technology / Internet / IT Division / Computer security/ Internet Services / System Administration/ Webmaster Support / Web Analysis/ SEO / SEM / Internet Marketing Web hosting services (SSD hosting solutions) EXPERIENCE: d(-_-)b Linux/Windows system administrator, Operations team EuroVPS/WebDomSolutions January 2012 - May 2013 Greece, Athens Responsibilities: - Tickets; - System administration and monitoring. Theoretical and practical skills: - Operating Systems: RedHat/CentOS/Fedora, Debian/Ubuntu, FreeBSD, Windows Server 2003/2008; - Virtualization: Virtuozzo, OpenVZ, VMware, Onapp Xen, Apache CloudStack; - Setup/configuration: nagios, kayako, racktables, confluence, observium, nginx, php-fpm, liteSpeed, Apache CloudStack, Hostbill, WHMCS, redmine; - Control panels: Plesk, WHM Cpanel. - Database Administration: SQL Server, MySQL, MariaDB ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ <( -'.'- )> freelancer SEO freelance October 2010 - March 2012 (1 years 6 months) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ o(^_^)o System Administrator / Techsupport Webintellects/Webhostgian/Jumpline/Webdomsolutions November 2010 - March 2012 (1 year 5 months) US, Ohio Responsibilities: - Live Chat support, Tickets; - System/Server/Control Panel administration; - Nagios monitoring; - Internet research and work with technical documentation. Operating Systems: * RedHat/CentOS,Fedora * Windows server 2003/2008 * VPS setup and configuration (Parallels Virtuozzo Containers); Advanced theoretical and practical skills in such areas: - Operating Systems: RedHat/CentOS/Fedora, Windows server 2003/2008; - Virtualization: VPS setup and configuration (Parallels Virtuozzo); - Security: Advanced knowledge of Linux security, Firewalls ( IPtables, CSF, APF, BFD, Fail2Ban), Encryption ( SSL), SSH, Host Security Auditing; - Software: Apache servers (versions 1.3.x/2.2), DNS (BIND 9), QMail, Sendmail, exim, LAMP, Plesk/Exim/Cpanel (installing/upgrading/maintaining), Drupal, Wordpress, Joomla, OsCommerce applications, Yum/RPM usage; - Database Administration: SQL Server 2003/2008, MySQL, MS access. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ b(^_^)d Internet Marketing Specialist || Web Analyst DCoM Soft, Inc. December 2009 – August 2010 (9 months) Responsibilities: - Internet Marketing strategy and tactics - Information architecture and Web site content planning - Research of partners - Internet Market Research - Research Usability Design - Online promotion of company's web-based products Skills: - Search Engine Optimisation (SEO) - Paid online Marketing / Pay per Click Management (PPC) - SEO Copywriting/Editing - Social Media Optimization and Marketing (SMO/SMM) - Experience running USA-targeted social Marketing - Writing press releases - Social networking (Twitter, Facebook, Google follow etc) - Google Products, AdWords/AdSense, Google Analytics, Webmaster tools, Google Merchant, etc. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ \(^_^)/ Customer Relations Representative || Advanced Technical Agent Ecommerce, Inc. May 2007 – October 2009 (2 years 6 months) Responsibilities: - Sales, billing and technical support in solving problems reported by clients; - Chat, helpdesk system, correspondence; - View, Adaptation, "repair" clients' sites; - Basic server/service diagnostic and reports to sysadmin department; - Internet research and work with technical documentation; - Work in team. Basic theoretical and practical skills in such areas: - Linux / Unix OS, Windows server 2000/2003, Windows XP/98; - Servers: Apache, bind, sendmail, ProFTP, MySQL, SQUID / SOCKS, MSSQL, Samba; - Easy coding: PHP, PERL / CGI, HTML, JavaScript, CF, ASP,. NET, C + +; - Widely used protocols (HTTP, HTTPS, SMTP, POP, IMAP, FTP (s), TCP / UDP, etc); - HSPHERE control panel (versions 2.3 and 3).

$34.88 /hr
1,208 hours
5.00
Nitin S.

Nitin S. Agency Contractor

Solutions Architect, Linux Administrator, AWS Ninj...

Australia - Last active: 19 hours ago - Tests: 1 - Portfolio: 3

Melbourne based System Administrator with expertise in Linux Server optimization, security and service deployment on VPS/Physical, Cloud Platforms(AWS,Rackspace). I believe in getting the job done with the best possible quality. Period. Clear timely communication with the clients and their team is always my priority. I have been working with all the major providers: Rackspace, Amazon, Softlayer, Godaddy, Hostgator, Bluehost, Linode, DreamHost, Mediatemple, Lunarpages. Expertise in Linux Administration is as follows (but not limted to) Server Distributions: RedHat, Centos, Fedora, Debian, Ubuntu, Gentoo, Suse, Mandriva, Opensuse, Knoppix, Slackware. Web servers: Apache, Lighttpd, Nginx, Tomcat File servers: Proftpd, Pureftpd, Vsftpd, Sftpd, TFTP, NFS, Samba DNS servers: Bind9, MyDNS, NSD Mail servers: Postfix(TLS,SASL), Exim, Sendmail, Qmail, Dovecot, Courier. Logging services: Syslog, Rsyslog, Syslog-ng Proxy servers: Squid(forward and reverse proxy), nginx, pound, lighttpd. Firewalls: Iptable scripts and Advance Policies Firewall with bruteforce detection. Firewall configuration: NAT, IP Masquerade Jabber servers: Openfire, Ejabberd, Djabberd Database servers: MySQL, Postgresql Backup: Bacula, bash scripts. VPN: PPTP Virtualisation: Openvz/Virtuozzo, Xen, Qemu, KVM, VMware Server, Parallels Workstation, Virtualbox headless, HyperVM. Monitoring: Nagios, munin, zabbix, zenoss Automation: Puppet(fan), custom bash scripts. Revision control: Git(fan), Subversion Package management: yum, rpm, dpkg, aptitude, apt-get, emerge Security: Nessus, John The Ripper, Tiger, PGP, GPG, nmap, Openvas, Snort, Ettercap, arpwatch, SSH, SSL, TLS, TCP Wrappers, Ethereal, dsniff, tcpdump, portsentry, rkhunter, chkrootkit, clamav, SPF, Spamassassin, domain keys. Cloud computing: Amazon (EC2, EBS, S3, CloudWatch), Rackspace services. Assessment tools: sar, vmstat, iostat, mpstat, netstat, iptraf, iftop, lsof, ntop, serverstats Misc services: NTP, Cups, DHCP, Dnsmasq

Associated with: ProServerHelp
$70.00 /hr
1,816 hours
5.00
Alexey C.

Alexey C.

9+ years exp in hosting industry. NIX/WIN servers...

Montenegro - Last active: 1 day ago - Tests: 7

server-administration, linux-system-administration, windows-administration, unix, freebsd, clustering, amazon-web-services, virtualization, openvz, plesk, cpanel, customer-support, helpdesk-support, internet-applications, database-management, mysql, postgresql, microsoft-sql-server, rdbms, mail-servers, dns, web-services, iis, apache, lighttpd, nginx, apache-tomcat, jboss, security, openvpn, billing

$33.33 /hr
1,703 hours
5.00
Jisin J.

Jisin J.

Senior Linux System Administrator

India - Last active: 4 days ago - Tests: 2 - Portfolio: 1

Providing administration and technical support to web hosting clients via chat and ticketing. Handle different levels of technical issues with servers. Optimizing the server. Familiar with Vituozzo, WHM and cPanel. Configuring and managing users groups, permission levels etc. Backup and Recovery of servers. Installation and Administration of Apache, PHP, MySQL. Apache, PHP recompilations to add-on new modules. Excellent experience in various webhosting and Cloud platforms including AWS / Azure / Vcloud / Rackspace etc. I can also handle development tasks using php, codeignitor, Magento, Wordpress etc.

$16.67 /hr
132 hours
5.00
Kirill A.

Kirill A.

System Administrator/Infrastructure engeneer

Ukraine - Last active: 05/28/2013 - Tests: 4

5+ years of experience with all types of day-to-day web hosting administration including LAMP, Apache Tomcat, MS Windows Server 2000, 2003, 2008, MSSQL, IIS, ASP.NET. Basic programming skills in PHP, Python, Perl, ASP, ASP.NET. Strong knowledge of control panels Plesk, CPanel, Virtuozzo. Backup solutions built from ground up. Custom solutions like Tomcat HA clusters. Fast problem identification and solving

$22.22 /hr
38 hours
4.97
Ramakrishnan Rengarajan

Ramakrishnan Rengarajan

3 years Experience in server administration and We...

India - Last active: 11/19/2013 - Tests: 4

• Total experience of 3 years as a Linux/Windows Server administrator. Handling Plesk web servers s and cPanel web servers. Currently working as a Quality Manager for technical support team. • Acquainted to the service level agreement to the clients to attain the quality level that is promised to them. • Completed GNIIT (Software Engineering) with top grade covering competitive technologies. • Expertise in Linux/Windows Concepts and control panels like Plesk and cPanel. • Expertice in Linux/Windows server administration. • Handled several server level and application level issues and troubleshooted various issues in diversed services and applications. • Web Server: IIS, Apache. • Mail Server: EXIM, Qmail. • FTP Server: PureFTP, ProFTP. • Database Server: MYSQL, MSSQL. • Control Panels Handled : Plesk, cPanel and DirectAdmin. • Other Technologies worked on: Parallels Virtuozzo Container, Parallels Management console, OpenVZ, SiteBuilder, Customer and Business manager, Fantastico and Application Vault, Wordpress.

$17.78 /hr
0 hours
4.10
Vincent Norguet

Vincent Norguet

DevOps French Freelancer

France - Last active: 04/05/2014 - Portfolio: 2

I'm DevOps in one of the biggest web gaming sites since january 2013: Y8.com. I have a Master degree in Software Architecture from ISTIC (Rennes, France), and work for: * LC-Impressions : 4 month internship, PHP developper * Zenika : 4 months internship, Junior Java Architect * CCM-Benchmark : 6 month internship + 4 month : PHP developer and Virtuoso administrator. One of the biggest french websites. * Y8.com DevOps and architect since january 2013 Here's a shortlist of kind of tasks I can handle: * Ruby and Ruby on Rails * PHP * Linux system administration * Virtuoso triplestore basic administration, RDF query creation or bugfix * Automation of deployment process I'm available 1-2 hours per week-day, and/or 5 hours on Saturday.

$88.89 /hr
0 hours
0.00
Paul Córdova

Paul Córdova

Network administrator, CCNA, SEO, Server adm, Web...

Chile - Last active: 07/10/2014 - Tests: 6

I like the mental challenges , constantly learning about my field of study as far as possible trying to implement it in my workplace, and this accomplishes that new knowledge are firmly anchored in the unconscious to effectively implement them , which is why I need and Seeking a work of great complexity. I have excellent insight and understanding of how the various mechanisms work computer. I've always enjoyed optimize computers, servers, and platforms taking full performance. I enjoy the work intellectually motivating and present continuing challenges to keep systems running. Monitoring , configuration , backup, maintenance of software systems is something I've done since childhood from the time that my father bought the family an Atari 800XL , I was always in charge of " family support " and the more I understood my family about computers and technology . After the acquisition of an Acer 486SX began my self- learning MS -DOS (command line) and 3.11 WINDOWS since at that time the computers he brought books in Spanish about 500 p. describing the operation of the various operating systems. In continuing this trend now beginning to internalize in no specific areas of my studies as they are CSS , HTML , PHP , C + + , JAVA and Android. I have a high work ethic implying dislike wasting time or have other recreational activities in the workplace, which is a low mental challenge during the day. This is also reflected in the face with the same energy as both pleasant activities less conspicuous activities in which the worker is required. Downtime at work and try to avoid it if no other attempt take out time to study or read about topics of interest to help me improve or develop as a professional in the area of Information Technology and Telecommunications. The information technology and communication are so great and changing universe that is necessary for professionals continually perfections and investigate on their own. I enjoy getting books in English in Pdf. file the Internet when something does not use a background, which I have questions or just curious.

$11.11 /hr
0 hours
0.00
Ajay N. N

Ajay N. N

System Administrator

India - Last active: 04/21/2014 - Tests: 1

* 3 year experience as Level III system Administrator. * Specialized in nginx+php-fpm+ispconfig configuration. * WebServers- apache,litespeed,nginx,IIS * SQL Servers- MySQL,MS SQL, PostgreSQL,MariaDB * DNS Servers- MS DNS, BIND * Mail Servers- exim,postfx,qmail, MailEnable. * Control Panels- cPanel, Plesk, ISPConfig,DirectAdmin * Operating system - Centos,RHEL,Fedora,Ubuntu,Debian,FreeBSD, All Windows Distributions. * Virtualization- VmWare,Xen,Virtuozzo.

$11.11 /hr
0 hours
0.00