Server Administrators & Developers

Showing 5,438 freelancers

Server Administrators & Developers

Showing 5,438 freelancers

  • Perl hacker and Voip Expert

    I have more than 6 years working experience of voip industry. i am proficient in Asterisk, Freeswitch, Kamailio,Fusionpbx, A2Billing, Freepbx,Freeside and Linux Administrator. And i have planned and built dozen multi-tenant carrier pbx. i have been always supporting … more

    I have more than 6 years working experience of voip industry. i am proficient in Asterisk, Freeswitch, Kamailio,Fusionpbx, A2Billing, Freepbx,Freeside and Linux Administrator. And i have planned and built dozen multi-tenant carrier pbx. i have been always supporting two muti-tenant carrier pbx systems based thirdlane and FusionPBX which both have more than 500 concurrent calls and 3000 registrations extensions. I am able to coding with C/C++, Perl, PHP, shell, sql and other programming language. I am steady, honest and hard-working. I am fond of innovation and pursuiting new techonologies. click here to know me more: https://click.2-call.me/apa1  less

    asterisk a2billing freeswitch perl linux-system-administration c++ 00 more less
    • $27.78 HOURLY RATE
    • 4.7
    • 2192 HOURS
    • CHINA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • Experienced Windows Linux, Unix, Citrix, ESXi, Network Administrator

    Windows, Unix and Linux servers. Managing OS33 Cloud server, AWS, Deploying VDI, ESXi, Xenserver, Xenapp, XenDesktop, Avaya CallManager. Cisco, Netgear, HP Procurve, Fortinet, Watchguard, Sonicwall, Barracuda, Juniper Switch, Router, NSA configuration. I'm in Tampa, Florida. Available to work from … more

    Windows, Unix and Linux servers. Managing OS33 Cloud server, AWS, Deploying VDI, ESXi, Xenserver, Xenapp, XenDesktop, Avaya CallManager. Cisco, Netgear, HP Procurve, Fortinet, Watchguard, Sonicwall, Barracuda, Juniper Switch, Router, NSA configuration. I'm in Tampa, Florida. Available to work from 8:00AM - 6:00PM Eastern time. If necessary feel free to call me at +1-813-598-6727  less

    linux-system-administration unix-system-administration qmail lotus-notes nagios vmware-administration adobe-photoshop adobe-illustrator technical-documentation technical-support windows-administration pfsense squid vmware-esx postfix citrix-xenserver citrix-netscaler 00 more less
    • $25.00 HOURLY RATE
    • 5.0
    • 5518 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 11 TESTS
  • AWS | EC2 | RDS | CloudFront | S3 | Chef | DevOP

    Update: Recently, I've been focusing on delivering large scaling infrastructure using AWS and Chef. Also, I've really focused on delivering CI to developers to help really bring their products to market quickly and efficiently. Since training with AWS … more

    Update: Recently, I've been focusing on delivering large scaling infrastructure using AWS and Chef. Also, I've really focused on delivering CI to developers to help really bring their products to market quickly and efficiently. Since training with AWS in 2011 this has been my passion. I've built backend infrastructure for mobile applications. I've built scalable e-commerce sites using magento, wordpress etc. Whether its augmenting current windows infrastructure, migrating servers to the cloud with VPN configurations. Or building a highly scalable multi-region infrastructure, I'm your guy. Please take a look at my portfolio, I've written several blog posts about building magento infrastructure, plesk installs, docker, among others.  less

    amazon-web-services amazon-ec2 amazon-s3 amazon-rds sw-configuration-management plesk ubuntu linux-system-administration devops 00 more less
    • $72.22 HOURLY RATE
    • 5.0
    • 132 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 1 TEST
  • Web Developer .NET stack with extensive database design experience.

    I have 4 years of software development experience creating web applications mainly based on the .NET stack (MVC). I create complete solutions based on a variety of back ends including SQL server, MySQL, Access, complete with reporting capabilities. I have … more

    I have 4 years of software development experience creating web applications mainly based on the .NET stack (MVC). I create complete solutions based on a variety of back ends including SQL server, MySQL, Access, complete with reporting capabilities. I have worked on several large scale projects for academic institutions for student enrollment, management and administration, which included migrating, combining and integrating several legacy databases without downtime, and creating extensive reporting capabilities.  less

    asp.net-mvc sql .net-framework ado.net 00 more less
    • $15.00 HOURLY RATE
    • 5.0
    • 674 HOURS
    • MACEDONIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
  • .Net/Java Developer | IT PRO

    High skilled developer in wide range of technologies which allow to build full and the best solution depending on customer requirements. Oriented for long-term cooperation for projects from scratch/"have only specifications" stages. Have abilities to build a team with … more

    High skilled developer in wide range of technologies which allow to build full and the best solution depending on customer requirements. Oriented for long-term cooperation for projects from scratch/"have only specifications" stages. Have abilities to build a team with up to 3 senior/middle developers during a few hours. Experience includes : -- Back-end: - Java / Java EE, JCF, Multithreading, JDBC, JSP, Hibernate - .Net / C#, ADO.NET/Entity Framework, ASP.NET MVC, RESTful API - Grails / Groovy -- Front-end: HTML, CSS, JavaScript/JQuery -- Hosting: Windows Azure, GlassFish. IIS, Tomcat -- Additional background : - Server technologies / AD DS, DNS, Hyper-V, IIS, DHCP, VPN, PowerShell. - Computer science, Artificial Neural Networks, common math and physics.  less

    c# asp.net-mvc ado.net windows-azure java windows-administration virtualization powershell artificial-neural-networks network-administration 00 more less
    • $20.00 HOURLY RATE
    • 4.9
    • 34 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 5 TESTS
  • Exchange Server, Active Directory, Lync, O365, VMware

    Over the last 11 years, I am closely involved in designing, building and support Microsoft Product e.g. Exchange 2000 to 2013 mail solutions, Lync 2010 & 2013, Windows 2003 to 2012 and O365 migration for start-up companies and small businesses … more

    Over the last 11 years, I am closely involved in designing, building and support Microsoft Product e.g. Exchange 2000 to 2013 mail solutions, Lync 2010 & 2013, Windows 2003 to 2012 and O365 migration for start-up companies and small businesses. My core competency lies in complete end-end management of a new Messaging project and I am seeking opportunities to Creating a solution conform the expectations of the customer, writing down in a proposal and presenting this to the client. Generating the technical design in detail and to build and Migrate the mail solutions and perform the necessary knowledge transfers from the ground up for the business. I also have some experience in the following areas: Domain Migration, HyperV, Vmware/esx, design, build and support.  less

    microsoft-exchange-server blackberry-app-development data-backup microsoft-lync-server domain-migration active-directory dns dhcp microsoft-windows-server 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 36 HOURS
    • INDIA
    • LAST ACTIVE
    • 13 PORTFOLIO ITEMS
    • 10 TESTS
  • Cisco Expert -VOIP-Linux

    Cisco ISP Engineer , with over two Years experience in an ISP company , i have a great experience in dealing with complex ISP networks and other networks . In addition to being CCNP Certified , i have an experience in implementing ,monitoring & Troubleshooting … more

    Cisco ISP Engineer , with over two Years experience in an ISP company , i have a great experience in dealing with complex ISP networks and other networks . In addition to being CCNP Certified , i have an experience in implementing ,monitoring & Troubleshooting various cisco networks. In addition to Cisco , I have an experience in squid cache servers and integrating it with Cisco equipment and Linux Voip servers such as Elastix & freepbx. Also i have an experience with Microsoft Active directory & DNS. I can and will deliver great results with short time and client satisfy.  less

    linux-system-administration network-administration cisco-routers cisco-asa elastix freepbx squid radius 00 more less
    • $35.00 HOURLY RATE
    • 5.0
    • 10 HOURS
    • PALESTINIAN TERRITORIES
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
  • Linux Server Administrator (cPanel/WHM)

    I am a cPanel/WHM server expert with the following knowledge and experience. cPanel Setup and it's administration. Administration of Linux servers. Ticketing and handling client chat Mail Server Administration Exim, Qmail, Postfix. MySQL Data Base Administration. Security updates … more

    I am a cPanel/WHM server expert with the following knowledge and experience. cPanel Setup and it's administration. Administration of Linux servers. Ticketing and handling client chat Mail Server Administration Exim, Qmail, Postfix. MySQL Data Base Administration. Security updates and application software installation. Implementing security mechanisms and Spam removal. Nginx Installation and Configuration Installation of Softaclous & Fantastico CSF, and IP tables configuration and management. Backup and Restore of hosting accounts. Name server Management and Domain name registration. Blog Administration of clients Bash Shell scripting and perl scripting. Professional Qualifications. B.Tech Computer Science and Engineering Certifications: RedHat Certified Engineer(RHCE) L1: cPanel Base Certification: Technical L1: cPanel Base Certification: Sales Thank you.  less

    linux-system-administration cpanel whm bash-shell-scripting wordpress security phpmyadmin openvz network-administration plesk 00 more less
    • $11.11 HOURLY RATE
    • 4.8
    • 395 HOURS
    • INDIA
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 4 TESTS
  • Linux, Unix, Windows administrator, VmWare, Network, Technical support

    Linux, Unix, Windows system administrator, Virtualization, Networking. I have experience with: Amazon Web Services(EC2, S3, RDS), DigitalOcean, VoliaCloud OS: Windows, Linux, FreeBSD Virtualization: VmWare ESX, VmWare Workstation, VirtualBox, Proxmox, Hyper-V. Server panel: WHM/Cpanel, ISPmanager, Zpanel, Webmin Web-server: Apache … more

    Linux, Unix, Windows system administrator, Virtualization, Networking. I have experience with: Amazon Web Services(EC2, S3, RDS), DigitalOcean, VoliaCloud OS: Windows, Linux, FreeBSD Virtualization: VmWare ESX, VmWare Workstation, VirtualBox, Proxmox, Hyper-V. Server panel: WHM/Cpanel, ISPmanager, Zpanel, Webmin Web-server: Apache, Nginx DNS-server: Bind FTP-server: vsFtpd, Filezilla Mail-server: Postfix, hMail Web-client from mail: SquirrelMail, Roundcube Network equipment: switch, router, ADSL-modem, Wireless access point, etc. (Cisco, D-link, Mikrotik) VPN: OpenVPN, PPTP Proxy-Server: Squid, UserGate CMS: Wordpress, Joomla Server software: PHP, SSH, Cron And many more that are not included in this list  less

    linux-system-administration network-administration tcp-ip windows-xp-administration vmware-esx squid ubuntu openvpn virtualization apache-administration phpmyadmin dns ssh postfix cisco-routers wordpress redhat-administration vpn xmpp 00 more less
    • $22.22 HOURLY RATE
    • 5.0
    • 64 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 6 TESTS
  • Senior Linux system administrator, network administrator

    I am expert Linux Server Administrator having 10+ years experience and ready to work. I have extended experience on web hosting technologies and cloud. Ready to start working at your project right now! -- Below you can see my general skills … more

    I am expert Linux Server Administrator having 10+ years experience and ready to work. I have extended experience on web hosting technologies and cloud. Ready to start working at your project right now! -- Below you can see my general skills -- * OS’s: Debian, Ubuntu, CentOS, RedHat, CloudLinux, Gentoo, FreeBSD (administration, configuration, audit, optimization); * Software Configuration Management: Salt, Ansible; * Web servers: nginx, Apache (installation, configuration, optimization); * Database servers: MySQL, Postgresql, MariaDB, Percona, MongoDB (installation, configuration, optimization, profiling); * Mail servers: Exim, Postfix, Sendmail, Zimbra, Qmail, Dovecot + Spamassassin, ClamAV; * Webhosting Administration Panel: ISPManager, Billmanager, VMManager, cPanel, ISPConfig, Plesk, DirectAdmin, VestaCP, webmin; * Amazon: AWS setup or Amazon tools; * Virtualization: OpenVZ, XEN, KVM, VMWare, VirtualBox; * Load balancing: HAproxy, Nginx, PowerDNS, BIND, Route53; * System Backup and Restore automatization;   * Network services: dns (bind, powerdns), vpn (mpd,pptpd,openvpn), firewalls (iptables/ipfw), file server (samba3/4), proxies (squid, 3proxy, privoxy, nginx); * Monitoring: Zabbix, Munin, Nagios; * FTP: Vsftp, Pureftp, Proftp. Thank you for viewing!  less

    debian-os centos database-programming mysql php linux-system-administration database-administration nginx apache-administration openvz 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 15 HOURS
    • MONTENEGRO
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 12 TESTS
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