Cluster Computing Developers & Programmers

Showing 121 freelancers

Cluster Computing Developers & Programmers

Showing 121 freelancers

  • 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
    • 4661 HOURS
    • MEXICO
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 4 TESTS
  • System and Network Administrator

    I have experience with Nginx (as web server, balancer, proxy and fastccgi proxy), Apache as web server and proxy, setting up php (as mod_php and fpm) and variety of php modules and runnig php , postgres, mysql and redis databases and … more

    I have experience with Nginx (as web server, balancer, proxy and fastccgi proxy), Apache as web server and proxy, setting up php (as mod_php and fpm) and variety of php modules and runnig php , postgres, mysql and redis databases and their backup solutions, replication and quick changes in databases, openvpn, cron jobs, ssl certificates, postfix, exim, securing ssh access, iptables, optimising db and web servers (varnish, memcached, caching content, setting expirations, apc, etc), setting permissions and users etc, tunning kernel parameters, setting puppet for centralized automated server deployment, using git, svn and mercurial repositories and to setup gerrit and make deployment automation, Jenkins, setting Symfony and Composer environments, Ruby (through rubyenv or system-wide). I also know to manage dns (clear bind9 or hosted dns solutions) and cdn services (liquidweb, cloudflare). About hosting solutions I have used since now AWS, storm-on-demand, server4you, hostgator, liquidweb. I am good with different cluster setups, separate db, app, balancer and other servers, securing connections between them etc. I also know to setup network file and printer sharing between different operating systems. I know to work with KVM, OpenVZ and VMWare virtualization. Provisioning, backup solutions, system setup, moving machines from one platform to other etc. About VPN I have experience with OpenVPN (with or without keys, LDAP auth, etc) and with Mikrotik PPTP VPN. Also I know to work with and to setup dynamic routing, dns, dhcp, access lists, static, routing, multi wan with failover, BGP, long distance wireless links, QoS, queues etc with mikrotik systems. I am head Network and System administrator at NSWireless community network located in Novi Sad, Serbia. I have experience with Debian, Ubuntu, Fedora, Red Hat, Centos, Arch, SUSE and other linux platforms. Complete setup and maintenance. I also have some experience with Mac OS X. About premade systems, I can set Worpress, Joomla, Magento, Redmine etc and tune their parameters and suggest environments for best performance. About panel solutions, I know to work with Plesk, WHM, CPanel, etc, but I prefer to use servers without these panels, so I use them only if it is your wish. I know to setup zabbix server for real time server and services monitoring, and munin for graphing. Thank you for reading, I hope that we will have good cooperation in administrating your servers.  less

    nginx apache-administration postgresql mysql database-administration clustering mono openvpn ssh data-backup virtualization dns puppet-administration load-balancing git linux-system-administration postfix unix-system-administration unix-shell bash centos ubuntu fedora opensuse amazon-ec2 amazon-s3 00 more less
    • $16.67 HOURLY RATE
    • 4.3
    • 145 HOURS
    • SERBIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 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
  • US based Project Manager/Business Analyst/Statistical Analyst

    • Dedicated and result oriented Business Analyst / Data Analyst with Six years of experience in diverse domains such Finance, insurance, E-commerce, government with in depth knowledge in Statistical Analysis, Data mining, SPSS and Data Analysis. • Proficient in Creating and Transforming Business … more

    • Dedicated and result oriented Business Analyst / Data Analyst with Six years of experience in diverse domains such Finance, insurance, E-commerce, government with in depth knowledge in Statistical Analysis, Data mining, SPSS and Data Analysis. • Proficient in Creating and Transforming Business Requirements into software requirement specification (SRS) using MS Word. • Expert in creating Risk Management Plan, User requirement Specification (URS), Functional Requirement Specification (FRS), Business Requirement Documents (BRDs). • Extensive experience in Agile and Waterfall methodology. • Proficiency in analyzing and Creating Use cases, Use Case Diagrams, Activity diagrams, Business Flow Diagrams and Sequence diagrams using MS Visio. • Expertise in MS Office Suite, MS Visio, SPSS, Statistical Tools, Financial Tools, Dividend Discount model and HP Quality Center. • Organized many Joint Application developments (JAD) and Joint Requirement Planning sessions (JRP), Interviews, workshops and requirement Elicitation sessions with end-user/clients/stake holders and the development group. • Extensively interacted with the QA Team in creation of the Test Plans, Providing Test Data, Creating and Test Cases. • Experience in Black Box Testing and User Acceptance Testing (UAT). • Strong business acumen, strategic thinking, interpersonal and presentation skills, adept at creating, editing, and coordinating extensive communication networks with excellent communication, analytical skills and conflict resolution skills. • Comprehensive experience in designing of customized system development methodology. • Extensive experience in working with AIG data collection methodology that consist of complex data collection template, data storage and report generation. TECHNICAL SKILLS • System Development Life Cycle (SDLC), Microsoft Access, Excel, Word, Power Point, Visio, Macro, Vlook-up, Hlook-up, Pivot table, Waterfall Methodology, Microsoft Visio, SPSS, Filemaker Pro, Agile Methodology, Product backlog, Sprint Planning, Retrospective meeting, Scrum practice, JAVA, SQL , EMC Documentum, Pre-UAT testing, Functional Specification, HP Quality Center, Data mining,  less

    business-analysis statistics php website-development ibm-spss accounting microsoft-sccm microsoft-scvmm microsoft-visio clustering rapid-miner .net-framework java-servlets-development project-management sharepoint-designer automated-testing microsoft-sql-server-administration human-resource-management 00 more less
    • $27.78 HOURLY RATE
    • 4.5
    • 731 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 1 TEST
    ASSOCIATED WITH:
  • 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
    • 1141 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 11 TESTS
  • AWS Certified Solutions Architect, Senior Linux / Cloud Expert, DevOps

    I am APN Consulting Partner: https://aws.amazon.com/partners/overview/consulting-partner/ and AWS Certified Solutions Architect: http://aws.amazon.com/certification/ with 7 years on odesk! I demonstrate knowledge, skills and proficiency with AWS services and can help customers … more

    I am APN Consulting Partner: https://aws.amazon.com/partners/overview/consulting-partner/ and AWS Certified Solutions Architect: http://aws.amazon.com/certification/ with 7 years on odesk! I demonstrate knowledge, skills and proficiency with AWS services and can help customers of all sizes design, architect, migrate, or build new applications on AWS. I have gain access to a range of resources that will enable me to better help my customers deploy, run, and manage applications in the AWS cloud. I have also experience with other cloud solutions like Gogrid, Rackspace, Rightscale, Scalr, Linode, Digital Ocean. I am Linux administrator of the RedHat/Centos, Ubuntu/Debian distributions with preparing the Scalable and Highly Available Products using automation by Puppet/Chef/Capistrano/Elastic Beanstalk/Opsworks/Cloudformation software.  less

    amazon-web-services amazon-ec2 amazon-s3 amazon-rds puppet-administration unix-system-administration perl linux-system-administration unix-shell clustering apache-administration lamp-administration python mysql mail-server-implementation virtualization nagios scalr rightscale zabbix bash postgresql apache-tomcat openvpn squid subversion capistrano postfix centos ubuntu apache-solr mongodb rackspace-cloudservers varnish-cache jenkins redis 00 more less
    • $38.89 HOURLY RATE
    • 4.9
    • 5072 HOURS
    • CZECH REPUBLIC
    • LAST ACTIVE
    • 8 PORTFOLIO ITEMS
    • 7 TESTS
    GROUPS:
  • Cloud Systems Architect, Amazon AWS expert, Linux Admin

    I'm experienced Linux Server Administrator (over 9 years) , cloud based platforms administrator (mostly on Amazon aws, Elastichost services, Rackspace, GoDaddy, Dreamhost). I'm also Software Engineer with master degree (Computer science/Software engineering). Projects developement manager. My experience: Projects … more

    I'm experienced Linux Server Administrator (over 9 years) , cloud based platforms administrator (mostly on Amazon aws, Elastichost services, Rackspace, GoDaddy, Dreamhost). I'm also Software Engineer with master degree (Computer science/Software engineering). Projects developement manager. My experience: Projects on Cloud IaaS providers management Linux based servers solutions Amazon AWS cloud solutions Migrations to Amazon AWS platform PaaS platform (RedHat OpenShift) System tasks: CentOS, RedHat, Fedora (administration, configuration, backup solutions, audit, optimization, benchmarking) Amazon AWS - running projects on EC2, RDS, VPC, SimpleDB, S3, CloudFront, Route 53 dns, ELB, AutoScaling, CloudWatch, ElastiCache, IAM, SES, SNS services. VPS: Cpanel / WHM / Plesk / DirectAdmin / Webadmin - Migrations, management, hardening, configuration, security maintenance. Backup solutions - Centralized Backup Server With Amanda, Tarsnap service, backups on Amazon AWS, AWS EBS snapshoting scripts. VMware (VCP certified) - vSphere ESX servers, vCenter servers, VMware View infrastructure administrator Webhosting, LAMP stack Experience with HPC clusters, HPC management software for Linux systems including multiple Linux operating systems, linking and building libraries Development, testing, stageing environments installation,preparation for production/developement process (svn, git, jenkins, bash scripts, phing) Experience with scripting language such as PHP, JS, Bash-Scripting, NodeJS env Cloud SaaS services: goolge apps, owncloud Atlassian software installation, setup (jira, confluence) Wordpress, Drupal installations CloudFront solutions for wordpress, drupal CloudFront streaming service for audio/video S3 and CloudFront for static/dynamic sites  less

    vmware-administration amazon-web-services amazon-ec2 amazon-s3 virtualization centos linux-system-administration database-administration amazon-rds iptables git unix-system-administration apache-administration apache-tomcat apache-ant cakephp security clustering bash data-backup svn tortoise-svn sendmail project-management jenkins rightscale wordpress video-streaming load-balancing fedora redhat-administration dns bash-shell-scripting 00 more less
    • $16.67 HOURLY RATE
    • 4.7
    • 65 HOURS
    • LITHUANIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 6 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
  • Your Pro

    Hello I have experience in the development of wide range server systems and web applications. I work in the largest IT company in my country for about 7 years as a network engineer and web architect. I have advanced knowledge … more

    Hello I have experience in the development of wide range server systems and web applications. I work in the largest IT company in my country for about 7 years as a network engineer and web architect. I have advanced knowledge of construction and administration of server systems, networks, databases, web architecture and service monitoring and support.  less

    linux-system-administration website-development php mysql database-administration lamp-administration network-administration dns database-management database-testing clustering rackspace-cloudservers amazon-web-services xml-web-services web-content-management cisco-routers cisco-ios vpn jquery ajax html css3 adobe-photoshop mailchimp mail-server-implementation domain-migration computer-networking bash redhat-administration unix-system-administration apache-administration 00 more less
    • $22.22 HOURLY RATE
    • 5.0
    • 766 HOURS
    • BULGARIA
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 6 TESTS
    GROUPS:
  • Linux Systems Engineer & AWS/EC2 Expert

    Self-motivated systems engineer with over 10 years of experience in Unix/Linux systems administration. Strong troubleshooting skills and business acumen. Proven track record of delivering creative and cost-effective solutions. Enjoy designing scalable and highly available services. I provide remote, high-quality … more

    Self-motivated systems engineer with over 10 years of experience in Unix/Linux systems administration. Strong troubleshooting skills and business acumen. Proven track record of delivering creative and cost-effective solutions. Enjoy designing scalable and highly available services. I provide remote, high-quality Linux systems administration services. I have extensive experience with Amazon's EC2 platform and have helped dozens of clients migrate their web sites and applications into the cloud. Available for on-demand support as well as on-going maintenance and monitoring contracts.  less

    linux-system-administration freebsd clustering apache-administration mysql dns amazon-ec2 00 more less
    • $83.33 HOURLY RATE
    • 4.9
    • 990 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 12 TESTS
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