Linux System Administration Freelancers

Showing 65 freelancers

Linux System Administration Freelancers

Showing 65 freelancers

  • Really fast and accurate PHP/Joomla Developer/Linux Administrator

    Over the last 18 years, I have developed a wide range applications, recently of websites using HMTL, DHTML, PHP, and MySQL including sites for startup companies and small businesses. My core competency lies in complete end-end management of a new … more

    Over the last 18 years, I have developed a wide range applications, recently of websites using HMTL, DHTML, PHP, and MySQL including sites for startup companies and small businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business, especially using Yii-Framework & Joomla CMS. I consider myself an expert in Joomla v1.5/2.5 MVC coding, JoomSocial, K2, Sobi2 and Virtuemart I also have big experience in web disign, setup and administration of Linux servers.  less

    php joomla yii-framework seo linux-system-administration adobe-photoshop 00 more less
    • $25.00 HOURLY RATE
    • 4.4
    • 1151 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 13 PORTFOLIO ITEMS
    • 8 TESTS
    GROUPS:
  • journalist

    I am a freelance journalist. I have been working for Hungarian, Serbian newspapers, TV and radio channels for more than 15 years. I was working as an editor for 3 years. Before my journalistic career I attended a secondary medical … more

    I am a freelance journalist. I have been working for Hungarian, Serbian newspapers, TV and radio channels for more than 15 years. I was working as an editor for 3 years. Before my journalistic career I attended a secondary medical school, and was working in the field as an RN. From time to time I translated various documents from English to Hungarian and Serbian. I am a Linux enthusiast. I am fluent in English (started to learn it when I was six years old ), Hungarian (my mother tongue) , Serbian (I was born there) , Croatian, and I understand German , Italian and French.  less

    nursing wordpress photography medical-transcription linux-system-administration translation-serbian-english translation-english-hungarian 00 more less
    • $11.11 HOURLY RATE
    • 4.8
    • 1770 HOURS
    • SERBIA
    • LAST ACTIVE
    • 18 PORTFOLIO ITEMS
    • 5 TESTS
  • PHP-Cassandra-NOSQL-Postgres-Mysql-HS-Sphinx-Solr-Hadoop-Analytics

    With Over 14 years of diversified experience, revolving around the software development of Internet and client/server applications under various environments with Track record of increasing responsibility in design, systems analysis/ development and full life cycle project management. Using some … more

    With Over 14 years of diversified experience, revolving around the software development of Internet and client/server applications under various environments with Track record of increasing responsibility in design, systems analysis/ development and full life cycle project management. Using some of the cutting edge technologies From Front end php, c, c++, Java, .net, C#, HTML, css... and backend mysql, postgres, SQLserver, NOSQL, Cassandra, Solr, Sphinx, Hadoop.... Solutions-oriented IT Specialist with notable success directing a broad range of IT initiatives while participating in planning, analysis and implementation of IT solutions in direct support of business objectives. Hands-on experience in leading all stages of system development efforts, including requirements definition, design, architecture, testing and support. Outstanding leadership abilities; able to coordinate and direct all phases of project-based efforts while managing, motivating and leading project teams.  less

    php mysql postgresql nosql cassandra apache-solr sphinx hadoop linux-system-administration .net-framework 00 more less
    • $15.00 HOURLY RATE
    • 4.4
    • 1611 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 10 PORTFOLIO ITEMS
    • 4 TESTS
  • Full Stack Ruby on Rails Application (Lead) Developer

    Fullstack ruby on rails application developer. Has been working with Ruby on Rails for last 4-5 years. I have been serving to many clients over the odesk for the long time. I have achieved a place in top 20th position … more

    Fullstack ruby on rails application developer. Has been working with Ruby on Rails for last 4-5 years. I have been serving to many clients over the odesk for the long time. I have achieved a place in top 20th position on Ruby on Rails tests in odesk. I have been experienced working as a team lead/CTO, motivating, mentoring developers and making the development quicker wih efficiency and making good progress from time to time. I maintain highly standard in my source code to leave it as maintainable for further development/enhancement. Working time: Flexible with any USA standerd time Available: Skype, Email Response Time: Faster Communication Skill: Fluent in spoken English, Good in writing. Experienced in: 1. Ruby & Ruby on Rails 2. Mysql, Postgres, Oracle, Mongodb 3. Full text searching: Elastic Search, Thinking Sphinx 4. Caching with redis, memcache-dalli 5. Payment API- Balanced API, Strip 6. Any social network API integration 7. Test Driven Development- rspec, factorygirl, guard etc etc 8. Behavior Driven Development - cucumber, selinium etc etc 9. Server management- deplyment 10. Team Leading, Technical Direction 11. SRS, Database Design 12. Refactoring Best Regards, Irfan Ahmed  less

    ruby ajax javascript html css ruby-on-rails database-management oracle-database database-design software-testing functional-testing twitter-bootstrap facebook-api twitter-api linux-system-administration data-scraping 00 more less
    • $66.67 HOURLY RATE
    • 4.9
    • 1420 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 4 TESTS
    GROUPS:
  • Daniel Maobe

    A talented professional with over 3 years of experience in service oriented positions. Excellent communication and organizational skills. Solution oriented with an emphasis in developing and simplifying procedures. I have experience working alongside Executives, Business Managers and Engineers which has … more

    A talented professional with over 3 years of experience in service oriented positions. Excellent communication and organizational skills. Solution oriented with an emphasis in developing and simplifying procedures. I have experience working alongside Executives, Business Managers and Engineers which has allowed me the opportunity to manage increasing workloads with tight deadlines. I take time to carefully review each project before bidding, and I only accept projects that are a good match for my skills to ensure that you receive outstanding professional service. An experienced professional who is ready and able to assist with your projects so that you can focus on generating revenue. Please reach out to me, to discuss how we can work together to free up your time and help you achieve your goals. HIGHLIGHTED SKILLS - Project Management - Strategic Marketing - Brand Creation & Management - Problem Solving - Business Development - Internet Marketing - Team Building & Management - Marketing Campaigns - Administrative Support - Creation of Excel Spreadsheets, PowerPoint, Microsoft Word - Managing listings on eBay and Amazon SERVICES OFFERED - Virtual Assistant - Customer Service - Executive Support - Project and Virtual Team Management - Brand Creation & Management - oDesk Recruiter / Hiring Manager  less

    zendesk technical-support email-technical-support email-handling data-entry computer-networking customer-support data-warehousing technical-writing internet-research linux-system-administration ssl sql technical-analysis customer-service 00 more less
    • $6.67 HOURLY RATE
    • 4.9
    • 2360 HOURS
    • KENYA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 6 TESTS
  • Mr. Evangelos Nikolas Evangelou

    Over the past 15 years I have been involved in systems and network engineering across heterogeneous environments. During the last 7 years I have worked in the design and implementation of Virtualization solutions with VMware and small to medium size … more

    Over the past 15 years I have been involved in systems and network engineering across heterogeneous environments. During the last 7 years I have worked in the design and implementation of Virtualization solutions with VMware and small to medium size Datacenters. For the last 2 years I worked on several Cloud Migration, SaaS Deployment projects and Architecting/Managing Amazon SaaS Environments. Some recent responsibilities/projects include: * Server Operating Systems: Amazon Linux, Windows Servers * Monitoring/Trending/Notification with CloudWatch, SNS, Nagios, Munin, DotCom-Monitor * Design/Implementation of SaaS Environment in multiple Amazon VPCs * Amazon Console Security using IAM / CLI and API Tools * Database Services utilizing Oracle, MSSQL and MySQL RDS * Reverse-Proxying/Load-Balancing using Nginx, HAProxy and Amazon ELB * Storage/Content Delivery utilizing CloudFront with S3 and Akamai * Host Intrusion Detection utilizing OSSEC (AlienVault) * Vulnerability Assessment utilizing QualysGuard (internally to VPC and externally to websites) * Application Servers: JBoss, Oracle Application Server, WebLogic * Email Servers: Sendmail, Procmail, Postfix * VPNs: Cisco VPN, Cisco Anyconnect, OpenVPN, OpenVPN Access Server * Automation of Amazon Deployments with Chef and Cloudformation * Server Migrations to the Cloud using Double-Take, Amazon VMDK Import, Rsync  less

    linux-system-administration network-administration 00 more less
    • $31.11 HOURLY RATE
    • 5.0
    • 5249 HOURS
    • CYPRUS
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 3 TESTS
  • Project Manager / Team Leader / Expert Web Researcher / VmWare Admin

    With my vast experience in IT and Non It field I posses all the abilities to be a Project Manager and team lead . The team is lead and projects i have done comprises of various technologies and domains I am … more

    With my vast experience in IT and Non It field I posses all the abilities to be a Project Manager and team lead . The team is lead and projects i have done comprises of various technologies and domains I am Certified consultant and a Manger Who is familiar with Research , Recruiting ,Technical Support , System admin, Network Admin, Support , Vmware, Webdesign, Business Analyst With my Experience i have managed many team in different technologies and domains . I am also Good at business analysis and Management. A business development and Entrepreneurial mind i here by provide best services and solutions  less

    virtual-assistant project-management vmware-esx linux-system-administration data-entry internet-research technical-support central-desktop market-research business-plans 00 more less
    • $24.44 HOURLY RATE
    • 4.6
    • 6062 HOURS
    • INDIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 6 TESTS
    ASSOCIATED WITH:
  • VoIP Expert / IP-PBX Specialist / Computer Networks / Linux

    A man interested in all things Computer and Data/Voice Networks related. Also a Linux and Virtualization enthusiast :) A strong supporter of Richard Stallman and Open Source software movement! You can visit and view my thoughts on: http://myciscojournal.blogspot … more

    A man interested in all things Computer and Data/Voice Networks related. Also a Linux and Virtualization enthusiast :) A strong supporter of Richard Stallman and Open Source software movement! You can visit and view my thoughts on: http://myciscojournal.blogspot.com Some Areas of my expertise: VoIP: -Genband Nextone - Expert -Sonus and NBS Solution - Expert -MVTS Pro and MVTS II - Expert -Acme Packet - Sound proficiency -Asterisk PBX: Full proficiency -Strong knowledge of SIP protocol and SIP routers/proxy servers/SS7 -OpenSER (Kamailio/OpenSips) -Load Balancing, Least Cost Routing, High Availability, NAT Traversal, Rate and billing systems, etc. -IVRs/Auto Attendant Development. -Wireshark - Expert Cisco Routing and Switching technologies. Centos/Fedora/Red Hat Enterprise Linux Various Billing solutions: -A2Billing: Full proficiency (configuration from scratch, customisation) -CDRTool (prepaid billing/accounting and sip tracing for OpenSIPS using RADIUS) -CDR-Stats (call detailed statistic/realtime stat for asterisk and freeswitch) - vBilling (billing for Freeswitch) Above all, a passionate technical writer, who enjoys writing down great tutorials in his free time :)  less

    cisco-routers cisco-voip sip linux-system-administration vicidial elastix trixbox a2billing freepbx asterisk 00 more less
    • $11.11 HOURLY RATE
    • 5.0
    • 1139 HOURS
    • MALAYSIA
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 5 TESTS
    ASSOCIATED WITH:
  • IT Engineer, manager / Systems Engineer Microsoft

    • Successful background in system administration, top-down networking implementation, system analysis, technical support, optimization and troubleshooting.• Strong experience in implementation of large-scale networking solutions, based on different operating system technologies, various hardware and software.• Experienced Engineer specializing in analyzing and solving … more

    • Successful background in system administration, top-down networking implementation, system analysis, technical support, optimization and troubleshooting.• Strong experience in implementation of large-scale networking solutions, based on different operating system technologies, various hardware and software.• Experienced Engineer specializing in analyzing and solving complex IT problems.• Good understanding of ITIL principles (passed ITIL v3 Foundation test).• Independent, resourceful and detail- oriented individual, able to quickly grasp new technology and work effectively in the team demonstrating good organizational and interpersonal skills• MCITP Enterprise Messaging Administrator on Exchange 20101•MCSE holder• MCITP Windows Database Administrator SQL2005 (MCDBA) • LinkedIn profile http://www.linkedin.com/in/vsudenko Microsoft Windows Server 2008/2003/2000/NT • Novell Netware 3-6 - administrator• Linux (Unix, Aix, Solaris, HP-UX) • MS Exchange, Lotus, Web, FTP, Proxy servers, MS IIS, MS Project, Tivoli• MS Active Directory• TCP/IP, LAN, WAN, VPN, DNS, DHCP• Virtualization technologies (VMware, Virtual PC).• Citrix MetaFrame Server - administrator• Backup systems (VERITAS Backup Exec, ARCserve, IBM Tivoli Storage Management).• Hardware: Intel x86-based platforms (IBM, Dell, HP), a wide range of network and peripheral equipment.• Good knowledge MS SQL 7.0 - 2008, stored procedures, backup, DTS, Jobs, restore from Log, etc.• Management of CVS, VSS systems• Building business processes of enterprise (Aris, Ms Visio)  less

    windows-administration linux-system-administration sql mac-os-app-development javascript .net-framework vba microsoft-exchange-server oracle-database sap-business-objects 00 more less
    • $30.00 HOURLY RATE
    • 5.0
    • 3805 HOURS
    • CZECH REPUBLIC
    • LAST ACTIVE
    • 14 PORTFOLIO ITEMS
    • 9 TESTS
    ASSOCIATED WITH:
  • SQL, Delphi, DB/Server Admin, Joomla, Google App, Stocks Screener

    I have been working as professional developer since 1995, at the first the projects I did mostly was building database application using Delphi and SQL. Now besides developing application, I also build websites and administrate database and server remotely, and … more

    I have been working as professional developer since 1995, at the first the projects I did mostly was building database application using Delphi and SQL. Now besides developing application, I also build websites and administrate database and server remotely, and use my past experiences to give solutions in the projects. Joomla is one of my tools in building website, of course accompanied by the good third party components. Sometimes for a better result, adding codes by using PHP and Java script is needed. For small or personal company which need to have the best and free hosting company for their websites, for me that solution will be Google by using the Google App along with their good services. By this solution, the only payment needed usually is for the domain name only. In this one last year, I do stock trading myself and using stockfetcher.com stock screener query in replace to MSN Deluxe Stock Screener. This is a very useful tools to help people to find the best stocks in their trading. In summary, my expertise are: - SQL optimization, database maintain & administration such Oracle, MS Sql, MySql, PostgreSql - App creation, rewrite and modification with Delphi, Access, VB, C, OOP - Maintain & build websites with Google App & Joomla - Server remote administration - StockFetcher.com stock screener query builder  less

    delphi php javascript sql mysql oracle-pl/sql postgresql c++ microsoft-visual-basic google-apps joomla html crystal-reports css ui-design database-modeling network-administration project-management windows-administration remoting linux-system-administration assembly-language x86-assembler 00 more less
    • $25.00 HOURLY RATE
    • 4.5
    • 10302 HOURS
    • INDONESIA
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 4 TESTS
    GROUPS:
loading