DMITRIY TUMANOV
@dmitriytumanov
I build secure Linux, DevOps, and network infrastructure for enterprise systems.
Russian FederationWhat I'm looking for
At JSC FCNIVT SNPO Eleron, I lead DevOps, QA, and infrastructure for physical security systems software, including access control, security alarms, video surveillance, and video analytics. I migrated codebases from SVN to GitLab and standardized automated build, test, and deployment pipelines with GitLab CI/CD, TeamCity, Ansible, and Packer.
I build secure Linux enterprise environments across Debian, Ubuntu, and Astra Linux SE, applying Mandatory Access Control, file-integrity controls, SSDLC practices, and FSTEC certification requirements. I also manage virtualized and containerized platforms with LXC, Podman, KVM, and Proxmox, including VMware ESXi migrations.
Previously, I managed distributed corporate networks, IP telephony, hybrid cloud, monitoring, and security infrastructure for Oil & Gas Systems LLC. My work covered Cisco, HPE, MikroTik, SAN, Asterisk, Sophos, Nginx ModSecurity, Hyper-V, Zabbix, ELK, Docker, Bash, and PowerShell.
Across 15+ years in infrastructure engineering, I have led system administration teams, supported multi-site environments, improved reliability for 200+ concurrent users, maintained 24/7 critical services, and modernized logging from ELK to Grafana Loki and Promtail.
Experience
Work history, roles, and key accomplishments
Lead Software Development & Testing Specialist
JSC FCNIVT SNPO Eleron
Leads DevOps, QA, and infrastructure processes for specialized physical security systems software, including access control and video surveillance. Architected codebase migration from SVN to GitLab and standardized CI/CD pipelines using GitLab CI/CD, TeamCity, Ansible, and Packer.
Lead Network Infrastructure Specialist
Oil & Gas Systems LLC
Dec 2020 - Jan 2026 (5 years 1 month)
Managed and expanded distributed corporate network infrastructure and IP telephony across multi-site environments. Ensured high availability and interconnectivity between corporate network segments and remote data centers, and authored network inter-service policies and IT security protocols.
Lead System Administrator
Tradition Center LLC
Mar 2017 - Mar 2020 (3 years)
Supervised a system administration team and managed Linux/Windows Server fleets on HP ProLiant and Supermicro hardware. Administered Active Directory, Exchange, DNS, DHCP, MS SQL, 1C Enterprise, RDS, Exim, KVM, Docker, Bacula, Kaspersky, and FreeRADIUS, and implemented centralized monitoring via Zabbix, SELKS, and Telegram.
Senior System Administrator
KarmaNov LLC
Nov 2013 - May 2016 (2 years 6 months)
Administered IT infrastructure spanning 200+ workstations, 70 retail store branches, and 12 core servers. Managed Hyper-V, VMware vSphere, MikroTik, Cisco, Linux Domain Controller, Active Directory, Zimbra, Bacula, Zabbix, and SevOne, and scaled cloud infrastructure.
Lead System Administrator
Komandir Taxi LLC
Apr 2012 - Sep 2013 (1 year 5 months)
Managed IT infrastructure supporting 120 workstations, 12 physical servers, and 45 virtual machines. Administered AD, Exchange/Postfix, MSSQL, MySQL, Asterisk, and automated maintenance tasks using PowerShell and Unix Shell.
Systems Engineer / Team Lead
First System Integrator LLC
Dec 2009 - Nov 2011 (1 year 11 months)
Led an engineering team providing IT outsourcing and infrastructure support for multiple client organizations. Configured Linux/Windows servers, MikroTik, KerioControl, and IP telephony.
System Administrator
ATU FGUP
Jun 2009 - Dec 2009 (6 months)
Administered core network and server infrastructure including AD, Exchange, 1C, Terminal Server, video surveillance, and industrial weighing software systems.
Education
Degrees, certifications, and relevant coursework
Moscow Institute of Economics, Management and Law
Bachelor's Degree, Applied Computer Science in Economics & Management
Bachelor's degree in Applied Computer Science in Economics & Management.
Moscow State College of Information Technologies
Associate Degree, Applied Computer Science in Economics
Associate degree in Applied Computer Science in Economics.
Availability
Location
Russian FederationAuthorized to work in
Job categories
Skills
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