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System Administrator

Belgrade
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Location:

Belgrade

Birthday date:

20/07/1982

Experience level:

Education level:

Master

Languages:

Russian

English

About

Work experience

Sputnik Search Portal LLC (https://www.sputnik.ru)
Job: Senior Information Technology System Administrator
– Deployed MS Exchange 2013 into the company’s infrastructure. Implemented migration of user accounts and mailboxes from the Postfix mail system. It improved communication and made email communication stable.
– Customized local issue tracker (Jira) workflows. So, based on project and issue type, issues were distributed for various queues with different competent performers. It reduced the time lag between creating and resolving the issues.
– Divided the office’s local network into several isolated vLANs, which considerably increased security in office LAN as a team member.
Years of work: November 2014 – August 2019
AO "ELT-POISK" (https://www.elt-poisk.com)
Job: Senior Information Technology System Administrator
– Organized a complex system of inventory, using a fusion inventory agent and GLPI, which saved about two weeks per year for the accountant.
– Implemented services monitoring with Zabbix. So it became much easier to prevent accidents.
– Deployed two more instances of MS Exchange 2019 servers in separate data centers to spread the workloads for the main server and improve the integrity of the mail database.
– Fixed problem with character encoding between GitLab and GitLab Runner on Windows machines. That helps developers with debug logs.
Years of work: August 2019 – January 2021
PetroTrace (https://www.ptgeos.com)
Job: System Administration Specialist
– Tied together several offices of the company creating IPSec vpn tunnels between hardware Fortigate devices.
– Reduced daily backup time by 30% by redistributing some tasks and decreasing time crossing of Acronis Backup Advanced schedule.
– Developed GPO policy with script for cleaning of MS Office cache files on employers’ windows virtual machines to fix leaking free space on system partition.
– Organized data exchange between local portal and Active Directory by writing and scheduling PowerShell scripts. That significantly reduced the number of issues related to user permissions and ACLs.
– Increased 10 times the upload speed to the corporate FTP server by server fine-tuning. That solved the long-lasting problem of receiving large data files from customers.
– Created documentation for employers at the local document portal. It cat off trouble tickets by 15%.
Years of work: January 2021 – April 2023

Edicuation:

Moscow State University
Faculty: Geological
Specialisation: Geophysics and Seismology
Graduation year: 2005

Key skills:

– Operating Systems: Windows Server, Linux, macOS, Windows Desktop OS Family
– Virtualization: KVM, VMware, Hyper-V  Scripting: Bash, PowerShell, VBA, Groovy
– Networking: Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP), Internet Protocol Suite (TCP/IP), LAN-WAN, Firewalls, Fortinet, OpenVPN
– Issue trackers: Jira, Redmine  DevOps: Git, GitLab, CI/CD, Docker, Jenkins, Puppet  Other: Active Directory, Exchange Server

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