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Work Background
HostifyInformation Technology Infrastructure Manager
Jan. 2019Sofia, Sofia City, Bulgaria
HostifyLinux System Administrator
Jan. 2019
Troubleshooter.techChief Technology Officer
Jan. 2018Sofia, Sofia City, Bulgaria
Net React Ltd.System Administrator
Nov. 2014Bulgaria•• Remote server administration of a cluster of 60 servers with CentOS, located at Leaseweb BV, Netherlands; •• Remote server administration of a 50+ servers, located at Data Center in Sofia, Bulgaria; •• Server application management: •• Web Servers - nginx apache •• Databases - PostgreSQL, MySQL, Percona XTRADB •• Redis , Memcached •• Git, Subversion (SVN), •• Encoding Servers - Wowza streaming servers •• Monitoring - nagios, munin, Grafana, •• Samba, NFS, and distributed Storages; •• VoIP - Asterisk PBX; •• Virtualization - VirtualBox, VMWare, Docker; •• ELK Stack - ElasticSearch, Kibana, Grafana, Logstash Filebeat; •• Cloud Platforms and CDN - AWS, Linode, DigitalOcean, Cloudflare;
NeterraSenior System Administrator
Apr. 2010 - Nov. 2014Bulgaria• Web Servers- Apache, nginx, IIS - Install, configure, Tuning ang optimization, Load Balacing, Memcached, Firewalls (iptables and etc.); • Mail Servers: Zimbra, qmail, vpopmail - Postfix, Courier, Dovecot, MySQL, SASL; • MySQL Servers - Installing, Configuration, tuning and optimization, clustering, HA and failover, Replications, Load Balacing; • DNS Servers (BIND9, PowerDNS) - Clustering, HA and failover, Load Balacing; • LDAP Servers; • NAS and SAN Storage; • Windows Server 2003 and Windows Server 2008; • Virtualization - Xen, KVM, OpenVZ, VMware, Cloud Platforms; • WOWZA Straming Servers; • Backup/Restore Servers - Bacula, Reoback, other; • Scripting and automation experience; • • Setup and configure: Linux Servers; • • File Servers - NAS , Samba, Windows Sharing; • • LDAP Servers; • • VoIP Servers - Asterisk, FreePBX, Trixbox; • • Setup routers, switches; • • Mail Servers - SMTP, SMTPs, IMAP, IMAPs, STARTTLS, SSL/TLS Authentication; • • Setup and configure monitoring systems - Cacti, Nagios, Nagios Agents; • • DNS Servers- creating zones and records, transferring zones, deleting zones; • • Server Configuration for TCP/IP and UDP multicast networking (VLAN Tagging, Routing, etc); • • SVN Server Side - Install and configure repositories; Git Administration; • • • Setup and configure: • • • Windows Desktop; • • • Linux Desktop and Linux Servers; • • • Setup routers, switches, printers; • • • End User Support ~130 users;
AlumilSystem Administrator
Jul. 2009 - Apr. 2010Bulgaria• Setup and configure ERP SYSTEM - Atlantis • Setup and configure Windows Server 2003 • Setup and configure Windows Server 2000 • Setup and configure Microsoft IIS Server • Setup and configure Windows Exchange Server 2003 • • Setup and Manage ERP SYSTEM - Administration, Backup, Optimization; • • Setup and Manage ORACLE DB - Administration, Backup, Optimization; • • Setup and Manage MySQL DB - Administration, Backup, Optimization; • • Setup and Manage Mail Servers; • • Setup and Manage DNS Servers; • • Setup and Manage Web Servers; • • Setup and Manage FTP Servers; • • Setup and Manage VPN Servers (IPsec, PPTP, OpenVPN); • • Setup and Manage VoIP PBX (Asterisk, FreePBX);
BALKANCAR ZARYA PldSystem Administrator
Aug. 2007 - Aug. 2009Bulgaria• Setup and configure Linux Servers - Fedora, Sles, OpenSuSE, FreeBSD, Slackware, Redhat; • Setup and configure SAP Business All-in-One ERP System; • Setup and configure ORACLE DB; • Setup and configure MySQL DB; • • Setup and Manage Archive and Backup Server; • • Setup and Manage Mail Server; • • Setup and Manage DNS Servers; • • Setup and Manage Web Servers; • • Setup And Mange FTP Server; • • Setup and Manage NAS Server; • • Setup and Manage VPN Server; • • Setup and Manage Surveillance DVR; • • Setup and Manage VoIP PBX; • • End User Support ~ 50 COMPUTERS, PRINTERS, FAXs , SCANNERs, 3 Office Networks;
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