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Last updated: October 1, 2015

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Davit A.

Davit A.

Senior System and Network Administrator

Armenia - Tests: 5 - Portfolio: 2

Over last 7 years of experience I designed & deployed wide range of servers and network using Linux/BSD/Solaris/Windows. Worked on different platforms such as Solaris, Mikrotik, WatchGuard, Cisco. I have installed, configured and administered a variety of IT related systems such as Linux HA (Clustering), DRBD, MongoDB (horizontal sharded cluster), Amazon EC2, Puppet, DNS, Mail, Database, Web server and more. Have extensive experience in information security, Linux hardening and bash scripting. Strong knowledge in networking.

100% Job Success
$30.00 /hr
341 hours

Valery K.

Valery K.

Migration expert\Linux System Administrator

Ukraine - Tests: 2 - Portfolio: 2

Hello. I'm self-motivated Linux system administrator with 7 years experience. I have great experience in: - Infrastructure Management/creation. - Network Infrastructure (Cisco) - Storage managment and data replication - Linux/UNIX maintaince/troubleshooting: Debian, Centos, Gentoo, Ubuntu, RHEL, CoreOS, LFS, freebsd/openbsd, osx servers, openwrt/dd-wrt routers and so on. - Web Servers: Nginx, Apache, Unicorn - IP Telephony services: Asterix, freeswitch, *pbx. - Linux serverside: iptables, rsync, named, OpenVPN and most of common and uncommon tools. - Monitoring: Zabbix, Nagios/Icinga, Munin, Cacti, Monit - Hosting providers and cloud providers: AWS, Digital Ocean, onapp and etc. - DB: MySQL, Percona XtraDB Cluster, PostgreSQL, Redis, MongoDB - Backup/Migration/Server replication/ - Mail servers: Postfix, Exim, Sendmail, Dovecot, Courier - Hosting panels : plesk, whm\cpanel, ISP , DirectAdmin - Virtualization: Xen(solusVM) , KVM, OpenVZ + ovz panel, Proxmox, Vagrant, Docker. - Automation: Server jobs automation, bash scripting, docker + vagrant automation. - CMS Service and debugging (NOT Develop) : Wordpress, drupal, magento. - Ruby/ node.js/ python APPS -Windows services: Windows Server Infrastructure, administration, backuping and all around services.

100% Job Success
$30.00 /hr
1,117 hours

Dmitry Gorlov

Dmitry Gorlov

Linux Admin / Oracle certified professional

Russia - Tests: 11 - Portfolio: 1

Under construction... I start my IT career since 1992 using FoxBase by IBM-compatible 286AT computer. Today my phone have more powerfull CPU :-) In Linux from 1997, begun from Redhat 6.0 In Oracle from 2003, begun from 8.1.7 10g OCP Certified in 2007. Microsoft MCP in 2007.

100% Job Success
$20.00 /hr
445 hours

Jayson Cena

Jayson Cena Agency Contractor

Linux(Debian/Red Hat),Oracle DBA, Linux Cluster Admin,Virtualization-H

Philippines - Tests: 4

To obtain a position that will enable me to experience and learn new ideas on system administration like complicated enterprise infrastructure design specially high-availability and fault-tolerant infrastructres. My core competency lies in designing new system infrastructure using open-source software. I also have some experience in VB6, ASP, PHP.

Associated with: ClusterFoundry Agency

$26.67 /hr
1,137 hours

Robin J.

Robin J.

Server Administrator and Automation Expert Linux / Windows

India - Tests: 2

Approx 4 years of experience in the field of Server Administration of Linux/Unix/Solaris/Windows. Good experience in the following points: Full Server Installation and configuration with the latest patches Hardening server Server security Server optimization Live server migration Server monitoring Expertise areas: 1. Linux Server Distributions (RedHat, CentOS, Fedora, Ubuntu) 2. WebServers (Apache/Litespeed, Nginx, Tomcat, Jboss) 3. Hosting Control Panel (WHM/C-Panel, Direct Admin,ISPConfig, Plesk Panel) 4. Monitoring Tools (Nagios, Cacti, Mrtg, Prtg) 5.Server Security (Iptables, CSF, Rkhunter, Chkrootkits, SSHD, TCP Wrapper) 6. Database (MySql, Oracle) 7. Mail Server (SendMail, Exim Mail, Zimbra, QMail) 8. Virtualiation (Virtuozoo, Hyper-V, OpenVz, Xen) 9. Scripting (Bash Shell) 10. Other: DNS, DHCP NFS, FTP, Smabha, Telnet, Ldap, NIS

81% Job Success
$12.00 /hr
152 hours

Evangelos Dikonimos-Makris

Evangelos Dikonimos-Makris

Senior Network Engineer (CCNP)

Greece - Tests: 6

10+years expertise on Networking and Unix/Linux environments. I have been working on ISPs for more than 7 years. I have huge experience in the following areas: Firewalls (Cisco, iptables, PFSense, Mikrotic) VPN ( Cisco, OpenVPN) IP Routing & MPLS ( VPNs, VRFs, VPLS ) Monitoring & Health Checks ( Cacti, Nagios, Rancid, Syslogs and SNMP traps ) Good knowledge of scripting ( Bash, expect, AWK )

$33.33 /hr
0 hours

Christian Fernandez

Christian Fernandez

Linux Network and systems engineer/Ethical Hacker pentester

United States - Tests: 2 - Portfolio: 5

Skills: I currently provide computer security, operations, networking, and systems engineering, research, administration and development for the Linux operating system, and in general, in the FLOSS(Free/Libre Open Source Software) community, computer security/hacking research vulnerabilities and penetration testing. Dev: Ruby, Rails, C/C++, Bash, etc (when time permits I like to explore learn new languages at the moment playing with Java) Specialties: Open Source, Free Software, GNU/Linux, Network Engineering, Penetration testing, Computer and Computer Security research, GNU/Linux systems and network architecture. Amazon Web Services, Virtualization , GNU/Linux Systems engineering and developer.

72% Job Success
$77.78 /hr
345 hours

Grigory Kuznetsov

Grigory Kuznetsov

System Engineer

Russia - Tests: 4

Qualified Cisco Academy Instructor (CCNA). 14+ years of work in field of IT. My main skills are: LAN & WAN design and deployment. Network equipment management - CISCO, HP, D-Link; network design, load balancing, backup strategy, monitoring. Data Center equipment management – computing systems, power distribution, cabling, air preparing. Administration of Microsoft Windows NT/2000/2003/2008/2008R2/2012 server OS (AD, DNS, DFS, DHCP, WDS, RDP, TS, clustering and load balancing). Administration of all Microsoft Windows client OS. Administration of Linux Red Hat/Cent OS (iptables, samba, squid, nginx, apache+mysql(optimization, DDoS mitigation)). Administration of VMware vSphere (ESXi + vCenter). Comprehensive monitoring using Zabbix.

$15.00 /hr
9 hours

Kiril M.

Kiril M. Agency Contractor

Linux Admin / Networking / VoIP / Scripting / Web development

Bulgaria - Tests: 8 - Portfolio: 2

Non-comprehensive list of GNU/Linux skills: - Debian-based distros - bash scripting - TCP/IP (networking) - netfilter/iptables (firewalling) - OpenVPN (virtual private networks) - OpenSSL (certificate management) - apache/nginx (web services) - cron (scheduling) - dovecot IMAP/POP3 and postfix SMTP (email) - asterisk PBX (voice over IP) - git (revision control) - syslog (advanced logging) - nagios, icinga, munin, monit (monitoring) - backuppc (backup) Non-comprehensive list of network management skills: - solid understanding of TCP/IP & Ethernet - monitoring tools - VLAN management - manageable switches in general - IGMP & IGMP snooping - OSPF & BGP routing protocols - GePON OLT & ONU equipment About me: Solid understanding of communication and web technologies is my primary area of interest and expertise. Over the last 7 years I've been a tech support for an ISP, a systems & network administrator and a web developer. As a network administrator for 2 years, I discovered what it means to maintain a large-scale MAN (Metropolitan Area Network), including internet access, setting up and managing IPTV streaming through IGMP and IGMP snooping techniques. I've setup BGP so the provider can have a backup route for his services. I'm falimiar with the nature of the technical issues that can occur and the different ways of handling and preventing them. I'm experienced in ethernet & GePON networking equipment. I've managed network equipment from most major vendors, Cisco, HP, DLink, Dell and Fundry, just to name a few. I've been working with Debian GNU/Linux professionally for 2 years as a systems administrator for a Bulgarian tourist resort and 2 years maintenance the services infrastructure (web, mail, vpn, samba, domain management, monitoring, ticket resolution systems, asterisk voip). I worked at a web development company for a year, doing back-end web development with different and frameworks, such as django, rails, express.js, along with infrastructure administration tasks and support. Languages: html5, bash, python, ruby, javascript Databases: mysql, postgres, mongodb Hobbies & interessts: - x86 assembler - system security forensics - electronics

Associated with: Samsourcing

$16.67 /hr
59 hours