- Administration servers based on Linux (Centos, Ubuntu, Debian, Fedora), FreeBSD;
- remote support of servers in data centers (iDRAC, iLO, IPMI);
- system for configuration management and remote operations – SaltStack, Ansible (partly);
- virtualization system – Ovirt, Proxmox;
- deployment of microservices

- Administration servers based on Linux (Centos, Ubuntu, Debian, Fedora), FreeBSD;
- remote support of servers in data centers (iDRAC, iLO, IPMI);
- system for configuration management and remote operations – SaltStack, Ansible (partly);
- virtualization system – Ovirt, Proxmox;
- deployment of microservices;
- Prometheus, Grafana, NewRelic, Docker, Gitlab, Jenkins, FreeIPA, OpenVPN, Freeradius, Nginx, Bind, Elasticsearch, Vagrant, Consul, Linkerd, JIRA & Confluence, Nexus, email systems, RackTables, MS365 services, AWS services (EC2, S3), backup systems (Bacula, Veeam, ProxmoxBackupServer), TrueNAS, etc.etc.
- Extreme Networks Summit, Ubiquiti EdgeRouter, Ubiquiti UniFi Controller & UniFi AP, Mikrotik.