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Average Virtuoso Freelancer Feedback Score

Virtuoso Upwork freelancers typically receive a client rating of 4.40.

4.40
Last updated: August 1, 2015
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  1. Jisin J.

    Jisin J.

    Senior Linux System Administrator

    India - Last active: 1 month 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
  2. 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
  3. Alexey Pechnikov

    Alexey Pechnikov

    Computer Vision & Simulation, Algorithms & Statistics, GIS

    Russia - Last active: 8 hours ago - Tests: 6 - Portfolio: 9

    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 experienced in full-stack development: * client-side programming (python, R, Tcl/Tk), * server-side programming (python, R, C, Tcl/Tk, shell scripting, etc.), * database programming (PostgreSQL, SQLite, OpenLink Virtuoso), * C programming of RDBMS (SQLite), * web programming (JavaScript, jQuery, HTML5), * mobile programming (java, PhoneGap), * and some other.

    $55.00 /hr
    435 hours
    5.00
  4. Vinod C

    Vinod C

    Seasoned linux Administrator - Nginx , apache, cPanel, Shell scripting

    India - Last active: 2 days ago - Tests: 7

    Hello, I am Vinod and I have more than 10 year experience in managing Linux and cPanel servers. I have versatile experience in setting up and managing servers, optimising them for the best usage and fine tuning the security aspects. I am very good in migrating websites or applications from one server to another with lowest possible downtime. Along with that I use shell scripting to automate day-to-day activities. I have set up and maintained clusters of DNS servers, web servers using Apache / Nginx controlled by a Load Balancer, Db servers using MySQL / Percona /MariaDB with Master - Slave replication. I have also experience in setting up NFS server for remote storage. I can be available any time on all weekdays and can provide industry references if needed. Why you wont regret for hiring me. 1. I love what I do and I insist on doing it well. 2. I follow certain work ethics and 100 % privacy and confidentiality is promised. 3. I do not outsource my projects. 4. I use Linux PC and Laptop and hence my computer is free from virus. 5. Have more than 3 active internet connections. DSL, WiMAX, 3G x 2 . So no ISP issue I am 1. True professional. An engineer by profession and education. 2. I am honest. I don't boast on what I don't know. I know Linux and I know it well. 3. I would rather ask 100 questions than making mistakes. 4. NDA is fine. Can send it as a hard copy / fax / email. 5. I will be online on Skype / Gtalk / Yahoo / AIM and I will be available on email / phone. With my 10 year experience, I believe I can understand what is the requirement completely. I have been a help desk (Kayako, Perlbill, WHMCS, Cereberus, Zendesk ) tech for the last 6 and half years and I have been dealing with a lot of people ranging from technically sound server / network administrators and architects to laymen. I can effectively communicate in a language which is understandable to whom I am dealing with. Pasting below a briefing about my skills. my experiences include --Centos, FreeBSD, Ubuntu , Redhat -- PCI -- Nagios -- Apache , Nginx , Lighttpd , varnish cache -- Exim -- MySQL , Percona , MariaDB -- Bind -- NFS -- Shell scripting, Working over command line. -- Control panels like cPanel, Plesk, Webmin, zpanel -- Cloud operating systems like Applogic, Onapp. -- Working on KVM switch ( for installing OS / networking issue trouble shooting etc ) -- Server security , Firewalls, Mod Security --Customised server setup for Drupal , Wordpress , Joomla -- Documentation Skills -- Customer service skills - Helpdesk. And many other services / applications which are necessary for managing linux based servers and applications.

    $20.00 /hr
    1,395 hours
    5.00
  5. Olivier Togonon

    Olivier Togonon

    Engineer

    Philippines - Last active: 17 days ago - Tests: 3

    Layout Engineer He is responsible for analysing, understanding andconverting circuit design into physical/layout design of FPGA integrated circuits while at the same time satisfying design requirementsusing available layout design editor tools. His responsibilities also include but not limited to cell up to chip level custom layout, scheduling, integration/automation, floor planning, routing, and verification. • Lattice Semiconductor Phils., Plaza B, Northgate, Filinvest, Alabang, Muntinlupa (2013 - 2015) o Sapphire Family  Has experience in ownership and support for integration and verification for Core(PLC, EBR, ASR and DSP), IO ring, Peripheral Interface Controller(PIC), Serializer/Deserializer(SerDes),Clocks(PClk and EClk), Buffers, PLL and eventually a support for the whole full chip verification. o Thunder  Supported full chip integration through DRC and LVS verification of its Quad/Core. o 28nm FDSOI Test Vehicle  Worked closely with US counterparts for the implementation of SRAM.  Managed a small group of mask designers for completion of Non-Volatile Configuration Memory(NVCM), Multiplexers, and Leakage circuits. o Snow  Worked as a resource for the NVCM, and owned blocks such as NVCM_cell arrays.  Headed mask designers as a top block owner for the External Clock and External Clock buffers. o Others  Conducted training for new hires.  Undergone Place and Route Overview Training  Provided key learning document after each project for Post-Mortem Discussions  Develop automation scripts using SKILL.  Conducted tests and assessments for Antenna, DRC and LVS verifications during tools transition from Calibre to Cadence Physical Verification System. • Rohm LSI Design Phils. Inc., Ortigas Center, Pasig City (2010-2013) o Power Management Chips and ASIC’s  Owned block level to top level layout for both analog and digital blocks examples are: current mirrors, temperature shutdown and under-voltage lockout(TSD_UVLO), EEPROM, OTP’s, charge pump, oscillator, amplifiers and bandgap. SKILLS • Layout Tools - Jedat Alpha-SX and Cadence Layout Suite • Verification Tools – Dracula, Calibre and Cadence PVS (DRC, LVS, Physical ERC, Latch-up, ESD, Antenna, Via Charge Up, VPS/EMIR, LVL, Latch-up) • Cadence SKILL programming • RPS • Unix

    $3.00 /hr
    0 hours
    0.00
  6. Paul Córdova

    Paul Córdova

    Network administrator, CCNA, SEO, Server adm, Web Dev., Wordpress, DBA

    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
  7. 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.

    $85.00 /hr
    0 hours
    0.00
  8. Ramakrishnan Rengarajan

    Ramakrishnan Rengarajan

    3 years Experience in server administration and Web hosting

    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
  9. Nidhin KB

    Nidhin KB

    Certified VMware Hyper-V parallels Linux and Windows Administrator

    India - Last active: 09/23/2013 - Tests: 1

    Install, Configure and Secure VMware ESXi 5 and vCenter 5. Create, Modify and Manage virtual machines and Installing VMware Tools into VM’s. Create, Deploy and Manage VMware cluster, Resource pools, Virtual Machines snapshots, VM Clones, Templates and vApps. Monitor resource usage (CPU, Memory, Disk, and Network Utilization) using vCenter server performance graphs, Alarms and Managing tasks and events. Migrating VMs with vMotion and Storage vMotion and backup/restore Virtual Machines using VMware Data Recovery. Implementing, configuring and managing High Availability (HA), Fault Tolerance (FT), Distributed Resource Scheduler (DRS) and Distributed Power Management (DPM) features. Manage and Control user access through groups, roles and permissions to the VMware infrastructure. Use VMware vSphere Update Manager to apply ESXi patches. Install and Manage Hyper-V with Windows Server 2008, 2008 R2 and 2012. Creation and Configuration of Windows virtual machines within Hyper-V and via the process automation software Opalis. Managing Microsoft Hyper-V nodes and Windows virtual machines via SCVMM 2008 R2 and Hyper-V Manager. Deploy and Manage High Availability with Failover Clusters, Snapshots and Migrating VMs with Vmotion and Storage Vmotion. Perform import/export virtual machines and Convert VMware virtual machines to Hyper-V virtual machines using MVMC. Experience in virtualization technologies Parallels Virtuozzo Containers and OpenVZ. Managing Virtuozzo host nodes including Cloning and Live migration of containers. Performance Tuning, Optimization, Load balancing and Monitor resource utilization in Virtuozzo nodes. Container Repair, Container Re-install, Backup and restore Virtuozzo Containers. Management of VPS and accounts using Data center operations automations tools Parallels Operations Automation (POA) and Parallels Business Automation (PBA). Administering and troubleshooting webhosting control panels cPanel and Parallels Plesk. Installing, Configuring and Managing Microsoft Windows 2003, 2008, 2008 R2 and 2012 server. Administration and Configuration of DNS server, IIS 7.0, Firewall and remote administration. Implementing & Managing Windows Active Directory Environments and Group Policy Administration. Installing, Configuring and Managing Linux Server Operating systems such as RHEL, CentOS, Ubuntu and Debian. Advance knowledge on LVM and different level of RAID technology for industrial use. Configuration and Management of standard Linux Services like Sudo, SSH, SCP, FTP, NcFTPd, PROFTPD, NFS, NIS SAMBA, BIND DNS­ Enterprise Level and Squid Proxy Server. Experience in LAMP server setup, Configuring and Maintaining Apache web server with PHP, CGI and MySQL support. In-depth knowledge of MySQL Installation, Configuration, Writing SQL queries and Master-Slave Replication. Configuration & Maintenance of Mail Servers - Sendmail, Postfix, Dovecot, Qmail, Exim etc and Mail Services. Implementing Firewall policy using IPtables, Server hardening, Performance tuning and Optimization. Tracking mail spammers, abusers and usage of Malware scanning tools: ClamAV, Root Kit Hunters, Maldet.

    $11.11 /hr
    0 hours
    0.00