Administreted and optimized Jira and Confluence for project management and documentation, supporting 50+ classes-teams in agile workflows. Deployed and maintained GitLab for version control and CI/CD pipelines, ensuring seamless code collaboration for development teams. Managed Discord and Matrix platforms for internal and external team communication, configuring channels, bots, and security settings.

Common Skills: Managing and maintaining: Windows 7-11, Windows Server 2003-2019, OS Linux (Debian, Ubuntu). Technologies: Active Directory, Proxmox, VMware vSphere, G Suite, Veeam Backup. Programming languages: PHP, Python, PowerShell. Analytical, Design: Excel, Adobe Photoshop. Project Management: Jira, Confluence, Redmine, Mantis. EDR/XDR systems: SentinelOne, CyNet. Other skills: Configuring and troubleshooting routers, switches, firewalls.
Responsibilities: Onboarding/offboarding of employees. Hardware & software skills: Server room setup & support. Hypervisor management: Proxmox (VM/CT, backup storages such as NFS, SSD, ZFS), VMware. G Workspace administration. Domains, hostings & cloud systems: Bluehost, Namecheap, AWS, GoDaddy, etc. Communication & emailing with company partners: Oracle, Microsoft, Google, Data Center of Germany partners. Support existing and set up new corporate systems. Work with: Linux (Ubuntu, Kali, Oracle, CentOS), Windows 7-11 and Server versions with Domain Controllers, macOS. Services: Crowd Atlassian, Confluence, Bitbucket, GitLab, other self-hosted apps (domain connection auth).
Information Security & Compliance: Participation in internal and external security audits (ISO 27001, GDPR) and preparation of reports. Development and review of information security policies, ensuring compliance with procedures. Involvement in incident investigations and implementation of countermeasures. Contribution to projects deploying new security solutions (XDR, WAF). Conducting risk assessments and monitoring security across internal systems and supply chains. Developing and delivering employee training, awareness programs, and presentations on information security.
Monitoring: Tools: SentinelOne XDR, Wireshark, Thor, Zabbix, Grafana. Terminal skills: System setup, package management, bug identification, code correction, updates & upgrades.
Security: Collaboration with cyber team to defend systems and networks. Regular meetings with Chief & other Head teams, daily work reporting.
Management & Technologies: Windows Server, Elasticsearch, Zabbix, OpenVAS, Wazuh, Linux, Ubuntu, PHP, AWS, Active Directory, VMware ESXi, Nginx, VirtualBox, MikroTik

- administration of the Windows Server domain (more than 200 accounts and computers) and the management network (more than 20 units of network equipment);
- maintenance of equipment (5 HP and Supermicro servers, HP, Microtic, IBM, TP-Link telecommunications equipment);
- administration of the hardware and software backup system (1C, File server,Dns,MySql etc/)
- administration of Internet services and corporate e-mail management (Squid, MDaemon, Medoc, Internet-Banking, etc.);
- Active Directory- virtualization Hyper-V- zabbix- setting and support ResPos equipments- building and maintaining a network infrastructure - support of network users (Helpdesk);
- documenting the work of the department.
- bitrix24- setting the company's internal LAN and WiFi

- administration of the Windows Server domain (more than 100 accounts and computers) and the management network (more than 10 units of network equipment);
- maintenance of equipment (3 HP and Supermicro servers, TP-Link, D-link telecommunications equipment);
- administration of the hardware and software backup system
- building and maintaining a network infrastructure
- administration of Internet services and corporate e-mail management - support of network users (Helpdesk);
- documenting the work of the department.