Cluster Computing Developers & Programmers

Showing 42 freelancers

Cluster Computing Developers & Programmers

Showing 42 freelancers

  • Technical Solution Architect in Linux and Opensource Tech

    Senior (Level IV) Linux System admin with over 8 years of experience in installing, maintaining & troubleshooting of 100’s of Unix/Linux systems, Mailing Solutions, Virtualization, Clustering, security software etc. I am a recognized expert in open source technologies and … more

    Senior (Level IV) Linux System admin with over 8 years of experience in installing, maintaining & troubleshooting of 100’s of Unix/Linux systems, Mailing Solutions, Virtualization, Clustering, security software etc. I am a recognized expert in open source technologies and contributor to the open source mailing system and Heartbeat clusters. I have been with CSC for 3 years. I am responsible for service and project delivery, and have been leading medium/large Infrastructure projects at CSC. As a solutions architect I have good all-round ability to juggle multiple projects and meet deadlines whilst at the same time comprehending complex and interdependent business processes. My technical expertise includes Solaris, Linux, Mail and Messaging technologies, Cluster Services, Virtualization technologies, NOC management, consulting, customer support, and internal help desk support. I have also demonstrated proficiency in optimization of legacy projects, Xen virtualization, software development, mass Red Hat-based deployments, HA Linux cluster design, Qmail clusters and NOC management in 24-hour support environments. I work in a challenging atmosphere for the interest of the company and have ability to identify and then deal with a client’s needs by translating them into appropriate technical solutions. Supports and delivered IT services based on ITIL processes, such as Configuration Management, Change Management, Problem management and Incident Management Specialties: I have extensive and in depth experience on Bind, Qmail, Sendmail, OpenVZ, Xen, LVS, openldap, heartbeat, RHCS and many more.  less

    ldap virtualization nagios linux-system-administration sendmail qmail clustering 00 more less
    • $11.11 HOURLY RATE
    • 5.0
    • 0 HOURS
    • INDIA
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 4 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
    • 18 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 20 PORTFOLIO ITEMS
    • 5 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
  • 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
  • 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
    • 669 HOURS
    • INDIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 7 TESTS
  • RHCE/IBM-AIX Cert/ VMware, SAN-NAS Storage Admin, Qmail, Apache .

    Summary: • 8 Years of experience in the Unix(Linux and IBM AIX), Storage, Virtualization( VMware ESx and AIX LPAR, DLPAR) Administration. • Currently started working as Freelance Engineer and available full time also. • Having experience of supporting Production Environment. I Was … more

    Summary: • 8 Years of experience in the Unix(Linux and IBM AIX), Storage, Virtualization( VMware ESx and AIX LPAR, DLPAR) Administration. • Currently started working as Freelance Engineer and available full time also. • Having experience of supporting Production Environment. I Was L3 support Unix Administrator and supported (3000 Server) at IBM Data Centre UK. • Having Experience of supporting Unix Clusters ( AIX HACMP Cluster) • Having Experience of supporting Storage Device Familiar with External Storage :- SAN, FASTt, DS4000, Analyzing Fast logs, coordinating with Storage team and providing HBA, FC details, WWPN details, and configuring LUNs in AIX host using SDD and AIX commands. Building Storage Device using Open Source software Like FreeNAS and Openfiler. • Familiar with VMware:- Installing and upgrading the ESX server (ESX 3, 3.2, 3.5. Installation of Virtual Infrastructure client and Virtual Center. Managing Virtual Machines using VI client, Managing ESX server using Virtual Center. Creating Virtual Machines, template, cloning. Moving VMs one ESX to another ESX host. Troubleshooting ESX server and Providing RCA for ESX server and coordinating with VMware support team over email/phone. ESX storage management. Familiar with ESX cluster. • Familiar with AIX Virtualization LPAR & DLPAR:- Creating LPAR Profile, assigning Memory, CPU etc… dynamically using Hardware Management Console • Familiar with AIX HACMP 5.3 Cluster: - Troubleshooting 3 node and 2 node cluster, cluster verification and synchronization, creating and increasing cluster file system, doing resource group failover using C-SPOC. If cluster service failed to make resource group online then manually making resource group online. • Familiar with AIX Virtualization LPAR & DLPAR:- Creating LPAR Profile, assigning Memory, CPU etc… dynamically using Hardware Management Console • Familiar with Advance Networking: Router Configuration, Firewall Configuration (IPcop). Designed and implementation Network for Web and Email Hosting Project. Current Project • Currently implementing Web and email hosting from the scratch. • Disaster Recovery Management :- Build Storage Device In Linux. • Built Qmail Server from Scratch • Built Web Server from the Scratch • Configured Call management using OS Ticketing System. • Developing onlinedigitallibrary web site. • Configuring OpenEMR for Hospital Management • Also I have well equipped LAB. Education: BCA, PGDCA, (MSc-IT) Professional Certification: RHCE and IBM AIX  less

    aix qmail mysql vmware-esx ibm-pseries firewalls linux-system-administration database-administration mail-server-implementation clustering network-administration ibm-storage 00 more less
    • $16.67 HOURLY RATE
    • 4.6
    • 0 HOURS
    • INDIA
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 5 TESTS
  • Sr Linux / Amazon EC2 / Migrations / Nginx / Security / DevOps

    A self-motivated System and Network security administrator with more than 10 years in the management and analysis of Linux/Unix enterprise Servers (60- 70 servers). With deep and advance knowledge of highly scalable servers, Cloud Computing, High performance, Hardening Servers … more

    A self-motivated System and Network security administrator with more than 10 years in the management and analysis of Linux/Unix enterprise Servers (60- 70 servers). With deep and advance knowledge of highly scalable servers, Cloud Computing, High performance, Hardening Servers, Migrations, Ethical hacking, Development Operations - DevOps, Open Source services and Server optimization. Certifications such as: Certified Ethical Hacker - Red Hat Certified Engineer - Cisco CCNA. Expertise in: MIGRATIONS: AMAZON/Wordpress/Magento/LAMP/Cpanel migration plans and implementation, backup-restore and recovery plans. I have helped dozens of clients migrate their web sites and applications into the CLOUD. Design and build Web Servers with HIGH PERFORMANCE (LAMP, NGINX/python, Nginx/Varnish, Nginx/php-fpm, Jboss, Apache tomcat and Varnish) - Improve and Fix performance issues, service optimization, security issues and deployments. MALWARE removal and analysis: WordPress / Magento / Joomla Malware removal and remediation, Incident handling and Forensics analysis. BOOST and optimize websites with: NGINX, Varnish, REDIS, Amazon S3, Memcached, APC, apache tunning and mysql tunning, Amazon CloudFront and more. Amazon Cloud Computing (AWS) - AMAZON EC2, amazon CDN S3, amazon RDS, amazon ELB, Amazon AutoScaling, VPC, CloudFront, Route53, etc. Also Management of multiple Control panels like Rackspace Cloud Computing, SoftLayer, GoDaddy, HostGator, dreamhost and MediaTemple. Designing and deploying scalable & Highly available systems such as: Amazon Load Balancing (ELB), Hearbeat, HAProxy, mysql cluster, apache cluster... Network and web security such as: Vulnerability Assessments, Hardening servers, security audits, Penetration testing, Virus/Malware/Threats/Vulnerabilities countermeasures, web security, fail2ban, Tripwire-AIDE-OSSEC, mod_security, mod_evasive, Denial of Services (DDOS) countermeasures, Firewalls (iptables, CSF and apf), etc. VPS: Cpanel / WHM / Plesk / DirectAdmin / Webadmin - Migrations, management, hardening, configuration, maintenance and high level of Administration. Databases Administration such as: Mysql tweaking and tunning, MongoDB, load balancing and Mysql replication (Master & Slave) for High traffic. Database: Mysql tweaking and tunning, MongoDB, ElasticSearch, Apache Solr, Sphinx, lucene, MariaDB, Postgresql replication & Pgpool, Mysql load balancing and Mysql replication (Master & Slave) for High traffic. Continuous integration (CI) and Automated configurations with: Puppet, Capistrano, GIT and Fabric. Jenkins + github, Jenkins + nginx... Networking: TCP/IP high expertise, NAT, FIREWALLS, CISCO routing and switching and Packet analysis with tcpdump and wireshark. Storage solutions and Directory management: SAMBA, NFS, FTP and sftp. LVM and RAID*. SCRIPTING: Bash and python. Proficient with MAIL Servers: postfix, sendmail and Zimbra. Source control versioning: GIT and SVN. Deploying and maintaining Monitoring systems such as: nagios, ZAbbix, cacti and Jboss Operation Network (JON). Backups solutions: amanda, rsync, Amazon backups and rsnapshot. Research & development (R & D) for any open source service and technology.  less

    network-security amazon-ec2 nginx linux-system-administration penetration-testing apache-administration jboss ubuntu virtualization samba security bash mysql amazon-rds amazon-web-services nagios rackspace-cloudservers clustering iptables centos git apache-tomcat unix-system-administration varnish-cache django-framework 00 more less
    • $24.99 HOURLY RATE
    • 4.9
    • 4675 HOURS
    • MEXICO
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 4 TESTS
  • 8+ Years of Hands on Experience in IT

    Summary Open Source Activities Mobile Application Development Project Management Product Development Risk Analysis Specialties Software Development Life Cycle Employee Relations Software Architecture Design Project Management Skills C++ (Expert, 7 years experience) Maemo (Expert, 2 years experience) Symbian C++ (Advanced, 2 … more

    Summary Open Source Activities Mobile Application Development Project Management Product Development Risk Analysis Specialties Software Development Life Cycle Employee Relations Software Architecture Design Project Management Skills C++ (Expert, 7 years experience) Maemo (Expert, 2 years experience) Symbian C++ (Advanced, 2 years experience) Linux development (Expert, 7 years experience) Linux server administration (Expert, 3 years experience) Qt (Expert, 5 years experience) Visual Basic (Advanced, 1 year experience) Perl (Advanced, 4 years experience) Product Development (Advanced, 2 years experience) Software Development (Expert, 7 years experience) GIS (Intermediate, 1 year experience) Java (Intermediate, 1 year experience) Cluster Development (Expert, 2 years experience) Mobile Applications (Expert, 6 years experience) Windows Mobile (Intermediate, 1 year experience) Flex (Intermediate, 2 years experience) BREW (Advanced, 2 years experience) Project Coordination (Expert, 4 years experience) Experience Senior Software Engineer at Ixonos April 2010 - Present CEO at Vootog July 2009 - November 2009 Project Technical Lead at SPA Computers January 2008 - July 2009 Senior Software Engineer at SPA Computers (P) Ltd January 2008 - April 2008 Software Engineer at DeviceDriven 2006 - 2008 Software Engineer at Integer Software Solutions December 2004 - July 2006 Languages English (Full professional proficiency) Malayalam (Native or bilingual proficiency) Hindi (Native or bilingual proficiency)  less

    c++ qt perl clustering 00 more less
    • $18.89 HOURLY RATE
    • 5.0
    • 0 HOURS
    • FINLAND
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 0 TESTS
  • AWS Architect/Engineer/Devops

    Over the last 9 years, I have been working as technical support engineer/team leader/infrastructure architect for several large companies (hosting companies with more than 1000 of dedicated and several dozens of VPS servers, ecommerce application companies, small and … more

    Over the last 9 years, I have been working as technical support engineer/team leader/infrastructure architect for several large companies (hosting companies with more than 1000 of dedicated and several dozens of VPS servers, ecommerce application companies, small and large companies with different cloud setups from several to several hundreds of instances) My competency lies in planning, development, deployment and setup of new production environments, troubleshooting/support/improvement of existing production systems based on Linux/Unix. Have a lot of experience in automation/monitoring/backup of different distributed environments with LAMP stack and other applications, different clustering, scalability and high-availability techniques.  less

    linux-system-administration amazon-ec2 clustering bash apache-tomcat ftp dns centos ubuntu subversion atlassian-jira mysql nagios lamp-administration memcached git rightscale amazon-web-services unix-shell redis squid haproxy mail-server-implementation postfix qmail apache-administration project-management github version-control plesk load-testing devops 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 1151 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 11 TESTS
  • System / Database Administrator

    Good day. We are the team of professionals. Having 10+ years of experience in Linux, hosting support, network support, local network support. High quality, short terms of solving your tasks and reasonable prices that is all that you can expect … more

    Good day. We are the team of professionals. Having 10+ years of experience in Linux, hosting support, network support, local network support. High quality, short terms of solving your tasks and reasonable prices that is all that you can expect if working with us. Support Level 1 - 4 USD/hr Support Level 2 - 7 USD/hr Support Level 3 - 12 USD/hr Best regards, Martin S.  less

    clustering virtualization lamp-administration mail-server-implementation centos ubuntu apache-administration mysql mongodb postfix exim smtp ssl ftp nginx load-balancing varnish-cache haproxy nagios memcached puppet-administration zabbix unix-system-administration cpanel whm plesk vmware-administration openvpn openvz vpn security dns ssh iptables linux-system-administration technical-support 00 more less
    • $12.22 HOURLY RATE
    • 5.0
    • 59 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 3 TESTS
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