Cluster Computing Developers & Programmers

Showing 90 freelancers

Cluster Computing Developers & Programmers

Showing 90 freelancers

  • MS SQL DBA Optimization, Clustering, Mirroring, Replication, TSQL

    Certified Database Administrator with over 10 years experience working with SQL Server 2012, 2008, 2005, 2000, 7.0 and 6.5. My proven skillset, has enabled me to work alongside and provide consultancy to Architecture and Development teams. My objective … more

    Certified Database Administrator with over 10 years experience working with SQL Server 2012, 2008, 2005, 2000, 7.0 and 6.5. My proven skillset, has enabled me to work alongside and provide consultancy to Architecture and Development teams. My objective is to use my experience to bring creative and robust solutions to businesses that requires a SQL Server Database Administrator/Developer. Skillset - Windows and SQL Server Clustering, TSQL, DTS, SSIS (ETL), SSRS, Performance Tuning/Optimization & Transactional ReplicationI also have 'real world' experience implementing backup, maintenance and disaster recovery strategies across multiple data centres.  less

    database-design database-administration clustering microsoft-sql-ssrs ssis sql 00 more less
    • $72.22 HOURLY RATE
    • 5.0
    • 2428 HOURS
    • UNITED KINGDOM
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
    ASSOCIATED WITH:
  • Cloud Virtualization Engineer

    Chief Engineer, Global Engineering, Virtual Private Cloud VMware ESX/ESXi vSphere4/5, SRM, VUM View3/4/.x, Composer, Connection Server P2V, P2C Cloud Computing/IaaS/PaaS/SaaS Windows NT/2000/2003/2008, MAC, OS2, Novell Blade Server/Enclosure Engineering Project … more

    Chief Engineer, Global Engineering, Virtual Private Cloud VMware ESX/ESXi vSphere4/5, SRM, VUM View3/4/.x, Composer, Connection Server P2V, P2C Cloud Computing/IaaS/PaaS/SaaS Windows NT/2000/2003/2008, MAC, OS2, Novell Blade Server/Enclosure Engineering Project Specialist Active Directory Group Policy DNS/WINS/DHCP Windows Clustering Sharepoint HA/DR Scripting NAS, SAN Storage Exchange Antivirus Expert Security Expert Server/Client Imaging (RDP/Altiris/Ghost) Backups (Arcserve, Tivoli, DP) Design and Implementation C, Cobal, Fortran, Assembler, RPG, VB,Oracle, SQL.  less

    vmware-administration clustering 00 more less
    • $22.21 HOURLY RATE
    • 4.6
    • 0 HOURS
    • IRELAND
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 4 TESTS
  • linux system engineer

    12 years of professional experience in Linux, Debian, RedHat, SuSE, etc.. Apache, Tomcat, Java, Oracle, samba, php, mysql, clustering technologies (LVS, drbd, hb, KeepAlive, VMware cluster, etc.), virtualization (VMware, Xen, KVM), MySQL Tuning and Replicaton/Clustering setup, Server hardening, Performance … more

    12 years of professional experience in Linux, Debian, RedHat, SuSE, etc.. Apache, Tomcat, Java, Oracle, samba, php, mysql, clustering technologies (LVS, drbd, hb, KeepAlive, VMware cluster, etc.), virtualization (VMware, Xen, KVM), MySQL Tuning and Replicaton/Clustering setup, Server hardening, Performance Monitoring and Tuning, Server Monitoring (Nagios, munin) , WebSite Configurations and Migrations, Postfix with spam filter, virus scanner  less

    linux-system-administration clustering 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 3 HOURS
    • HUNGARY
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 6 TESTS
  • System Admin

    I have been in the system administration and server management field for almost 10 years. Server management has been always my passion and I enjoy working in this area. I got loads of experience in key areas of server management … more

    I have been in the system administration and server management field for almost 10 years. Server management has been always my passion and I enjoy working in this area. I got loads of experience in key areas of server management. I got immense experience in server hardening and server security. I have designed, configured and secured more than 1500 servers up to date. I have experience in setting up datacenter. I rate my troubleshooting skills very high and have been very successful in finding out the cause of an issue and solving it. As I am very savvy on this, I can assure my experience will be a added advantage for you. My relevant skillset is quoted below. 1. Complete Management of Linux/Unix/Windows server. 2. Control panel knowledge (cPanel, Plesk, Helm, Directadmin, Ensim, Webmin, Virtualmin) 3. Virtualization technology (OpenVZ, Xen, SoluzVM, HyperVM, VMware ESXi, Xen Center, Microsoft HyperV, KVMs) 4. Server migration between various control panels 5. Mail server (Exim, Sendmail, Postfix, Qmail) 6. Cloud Server ( OnApp, Amazon EC2) 7. WebServers (Apache, IIS, Nginx, Lighttpd, LiteSpeed) 8. Operating Systems (RHEL, CentOS, Debian, Ubintu, OpenSuse, FreeBsd, Windows) 9. SSL Certificates (Symantec, Digital certs, Go daddy, Verizon) 10. Proficient in troubleshooting various desktop issues and applications 11. Good Knowledge in DRBD. Have setup more than 100 servers 12. Good knowledge in failover technology. Have used pacemaker/heartbeat for realizing failover clusters 13. Good knowledge in load balancers. Have used linux virtual server as the load balancer. Configured, LVS NAT, direct routing and Tunnelling. Knowledge on split-brain issues 14. Immense experience in server monitoring. Haves nagios, Zabbix. have developed more than 200 nagios plugins. Always take pro-active measures on alerts 15. VPN, PPTP,IPsec, SSH, SSL/TLS 16. FTP, SVN, CVS, GIT, Samba File Server 17. Content management system: OpentCart, Wordpress, OsCommerce, Ecommerce, Joomla 18. Networking: DHCP, DNS, Active Directory, OpenVPN, NFS, SAMBA, GFI, Squid Proxy realized with authentication, Firewalls (csf/apf/iptables), Clusters (active-passive/failover), Remote Installation (with KVM/IPMI), Network Address Translation, Network Information System 19. Backup: R1soft, CDP, rzync based backup, Rdiff, control panel backups 20. Server hardening of any kind of servers. Will provide complete report of what all security steps has been done on the server. Can setup weekly cronjob to get a server security report. Major Projects done 1. Design, harden and setup servers in a datacenter. The total number of servers setup is 600. 2. Implement monitoring for servers with nagios as the monitoring server. Number of servers added to nagios is1500. 3. Develop nagios plugins for a client. Number of plugins created is 75. 4. Migration of servers. Migrated 300 virtual machines from 5 physical nodes to two physical nodes. 5. Migration between control panels. have done more than 1000 migrations till date. 6. Mailbox Migration: Done exim mailbox migration in MailDir format. Number of email account migrated is approximately 10,000. 7. Load balancing setup for a client with LVS NAT. Effectively completed the project with one master server and 5 load balancer clients. The website hosted in this cluster has got almost 2 million hits a day. 8. Configured DRBD for online data sync with almost 50 resources configured. Have configured “Automatic split-brain recovery policies”. 9. Designed and Setup failover servers with DRBD-Pacemaker. The corosync cluster engine was used. Resource level fencing was used. The cluster got 10 servers. Five such clusters has been realized. 10. Configured centralized server management software Puppet on a group of 1200 servers. Updated various security softwares such as SSH, CSF firewall etc on all these group of servers at once using puppet. Languages known: Malayalam – Mother Tongue English – High Level - Speak, Read and Write  less

    linux-system-administration virtualization network-security clustering security network-administration 00 more less
    • $11.11 HOURLY RATE
    • 4.6
    • 1 HOURS
    • INDIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
    ASSOCIATED WITH:
  • Sr Unix Admin (Linux/Solaris/AIX) - Apache/PHP/MySQL/Scripting

    Highly skilled Systems Engineer, with CCNA certification. Extensive knowledge of Unix and Network design and administration (AIX - Solaris - Linux) based on 13 years of experience in projects. Experience in large enterprise environments with complex architectures, multiples OS versions and cluster … more

    Highly skilled Systems Engineer, with CCNA certification. Extensive knowledge of Unix and Network design and administration (AIX - Solaris - Linux) based on 13 years of experience in projects. Experience in large enterprise environments with complex architectures, multiples OS versions and cluster and volume management software. Responsibility and quality on all assigned tasks. Willing to develop long term work relationships. ATTENTION: Due to the need to finance a study travel for a member of my family, I have immediate availability for part-time assignments, regardless of the time zone. Have been working with people from US, UK, Germany, and India, among others. On my free time I enjoy outdoor activities like running, mountain bike, gym, and mostly: hiking and sailing.  less

    unix-system-administration solaris-administration aix clustering linux-system-administration ssl ftp ssh ldap project-management 00 more less
    • $25.00 HOURLY RATE
    • 5.0
    • 0 HOURS
    • ARGENTINA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • Server and Network Administration Specialist

    I have been working in Linux and Cisco platforms since 2009. Achieved my RHCE and CCNA certifications. I am currently working towards CCNP. Currently, I'm working in the Data Network of an International Internet Gateway. I have also worked … more

    I have been working in Linux and Cisco platforms since 2009. Achieved my RHCE and CCNA certifications. I am currently working towards CCNP. Currently, I'm working in the Data Network of an International Internet Gateway. I have also worked as a System Admin in a University and managed Servers that provided services for more than 500 hosts. I have worked in one of the largest ISPs in Bangladesh. I have deployed Linux Servers for many organizations and troubleshooted many Server related issues during my work in the ISP.  less

    linux-system-administration cisco-ios nagios iptables clustering samba ospf cisco-routers asterisk postfix 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 22 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 30 PORTFOLIO ITEMS
    • 5 TESTS
    ASSOCIATED WITH:
  • Deputy Manager - Corporate Solution

    Honesty, commitment & patience have been my strong believe for career building. It has been 12 years on job and mostly I received appreciation on my services to any work. My career began in between my education where I used to … more

    Honesty, commitment & patience have been my strong believe for career building. It has been 12 years on job and mostly I received appreciation on my services to any work. My career began in between my education where I used to be technical instructor and server administrator. Just after the under-graduation I started working for Link3 Technologies Ltd. & still serving on. I started here as helpdesk operator and soon became useful to wireless team where I worked on site survey, point and multipoint link establishment, base station maintenance & frequency allocation and planning. Soon after that I was shifted to serve corporate customers with complicated multi environment systems & appliance on behalf as an NOC member. And so on with my growing experience and idea I started working with corporate solution analysis and implementation. My current responsibility holds me to act as a corporate solution consultant, business development & research and development. I am comfortable working with Linux, FreeBSD, Slackware, Windows etc. Worked with Cisco, Checkpoint, juniper, etc. for data centre implementation. Working with HA replication unit or cluster, VOIP system & complicated solution implementation and aggregation gets me comfort zone as a technical person. My solutions and advices are based on solving problem using existing resource with phase by phase implementation.  less

    virtualization clustering asterisk cisco-voip cisco-routers cisco-asa zimbra-administration voip-administration linux-system-administration 00 more less
    • $7.78 HOURLY RATE
    • 5.0
    • 21 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 7 PORTFOLIO ITEMS
    • 9 TESTS
    ASSOCIATED WITH:
  • can't do is not an option

    - Linux maintenance/troubleshooting (RHEL, Centos, Debian), - Cloud hosting (Amazon EC2, AWS, S3), - Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, qos, proxies), - Web servers (apache, nginx, lighttpd), - Mail servers (exim, postfix, qmail, antispam/ antivirus: clamav/spamassassin … more

    - Linux maintenance/troubleshooting (RHEL, Centos, Debian), - Cloud hosting (Amazon EC2, AWS, S3), - Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, qos, proxies), - Web servers (apache, nginx, lighttpd), - Mail servers (exim, postfix, qmail, antispam/ antivirus: clamav/spamassassin/amavis, courier, dovecot), - Bulk marketing (Dkim, spf, high speed/inboxing, interspire, powermta,returnpath), - Automation (puppet, perl/shell/awk scripting), - Monitoring (nagios, zabbix,cacti), - Database Optimization,Replication (MySQL)  less

    mysql apache-administration lamp-administration postfix amazon-ec2 amazon-web-services squid nginx magento linux-system-administration performance-tuning load-balancing clustering haproxy centos 00 more less
    • $38.89 HOURLY RATE
    • 5.0
    • 115 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 1 TEST
  • Seasoned linux Administrator - Nginx , apache, cPanel, Shell scripting

    Hello, I am Vinod and I have more than 7 year experience in managing Linux and cPanel servers. I have versatile experience in setting up and managing servers, optimizing them for the best usage and fine tuning the security aspects … more

    Hello, I am Vinod and I have more than 7 year experience in managing Linux and cPanel servers. I have versatile experience in setting up and managing servers, optimizing 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 have many other things to do too and I value my personal life too. So no lame excuses or delay projects. I am efficient in my work. I believe " a stitch in time saves nine " completely. 6. I understand that what you are spending is your hard earned money. 7. I will be online on Skype / Gtalk / Yahoo / AIM and I will be available on email / phone. With my 8.5 year experience, I believe I can understand what is the requirement completely. I have been a help desk (Kayako, Perlbill, WHMCS, Cereberus ) 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 -- Exim -- MySQL , Percona , MariaDB -- Bind -- NFS -- Shell scripting, Working over command line. -- Control panels like cPanel, Plesk, Webmin, -- Cloud operating systems like Applogic, Onapp. -- Working on KVM switch ( for installing OS / networking issue trouble shooting etc ) -- Server security , Firewalls, Mod Security -- Documentation Skills And many other services / applications which are necessary for managing linux based servers and applications.  less

    unix-shell whm apache-administration nginx dns mysql mail-server-implementation cpanel email-technical-support pci-compliance load-balancing database-administration clustering virtualization virtuoso exim helpdesk-support email-deliverability-consulting 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 779 HOURS
    • INDIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 7 TESTS
loading