o Automation of daily procedures through Basho System Monitoring , Alerting and Analyzing tools implementation (i.e Nagios , Munin)o Operation and maintains of system, based on Linux system, including resolving daily problems and ongoing projects.o rpm package building for appropriative environmentso Log analyzing tools implementation using custom scripting (Bash)o Determine and implement optimal software/​hardware configurations for development environment.o Configuration, support and optimization infrastructure local development needs.o Support and maintenance DB servers ( Percona, MySQL, PostgreSQL ) including replication and clustering setupo Infrastructure design, determination and implementation of optimal software/​hardware configuration.o Linux Kernel based virtualization implementation (KVM) and management system implementation based on Ganeti.o Firewall administration based on Linux IPtables and FreeBSD IPFWo Setup/Calculation of high load/availability web systems o Failover , load-balancing, reverse proxy, SSL termination (Squid, HAProxy , nginx)o Web servers (Apache, nginx) deployment, configuration, customization and fine tuning for loaded system.o Storage and backup technology implementation, daily support and monitoring of very large storage, backup, Converged systems SAN/NAS environmentso Configuration and optimization of a dedicated 20Gb Storage Network, Gigabit copper and fiber networks.o Storage utilization/capacity planning and adjusting storage requirements (RAID arrays configuration, caching, etc..)

o Everyday work including trouble ticket resolving that cannot be solved by Customer Care and Back Office staff.o After-hours and holidays on-call (sometimes on-duty) supporto Writing PL/​SQL and T-SQL stored procedures and packages, user defined functions, triggers, and other database objects.o Configuration and optimization of Cboss application platformo Setup and administration of versioning tools (SVN, HG/Mercurial)o Request Tracker (RT) installation, configuration and optimization for company needso Experience with storage hardware/virtualization technologies such as RAID controllers, NAS systems, DAS systemso CRM management tool deployment and configuration for business needs.o Analyzes and evaluates infrastructure to ensure optimum performance.o Cooperation with vendors, maintains equipment and ensures maximum performance/capability.o Provides status reports to include availability, performance and hardware resource utilization.o Management and support of critical system upgradeso Payment system/interface integration and support

o System Monitoring and Alerting tools implementation.o Writing script and programs using bash and Perl for system maintenance purposes.o Create proactive monitoring processes and preventative action plans to avoid system outages using Bash scripting.o Infrastructure design, determination, and implementation of optimal software/​hardware configuration.o Daily operation on Linux/Unix operation systemso DNS (Bind) administrationo Non-relational databases configuration.o Configuration of mail system (Postfix, for spam purposes SpamAssasin)o Configuration and usage of NFSo Daily operation on Linux/Unix operation systemso Perform maintenance and troubleshooting of application servers (i.e. Websphere, JBoss, Tomcat)o Daily backup/recovery taskso VPN servers (OpenVPN, l2tp/IPsec) administrationo Proxy server (Squid, HA Proxy) administrationo Advanced networking: switching, routing, security, high availabilityo VPN servers (OpenVPN, l2tp/IPsec) deployment and administrationo All-access level security support and responsible (LAN, WAN, VPN)o Network design, external and internal servers securityo Configuration management system deployment (CFEngine), customization, and maintenance to continuously monitor, self-repair, deploy and update or restore the system.