Position: System Engineer, Network Engineer, Head IT
Category: Sysadmin
English level: pre
Years of experience: 10


Strong knowledge of Linux (Red Hat/CentOS), LAMP, Nginx, HAProxy, etc
Strong knowledge of Microsoft Windows Server (Windows Server 2012R2 / 2016 / 2019). Deep practical skills in Active Directory, GPO, DHCP, DNS, PKI, NPS, IIS, WSUS, RDS. Experience in building fault-tolerant solutions using Failover Cluster;
Experience with file systems and network storage (SAN, NAS, NFS, iSCSI);
Experience of database servers administration (SQL Server, MySQL, PerconaDB), Experience of support HA solution, like MySQL replication, SQL Server Failover Cluster;
Experience with virtualization technologies (HyperV, ESXi, Docker). Experience with vCenter, SCVMM, deployment and support hyperconverged solutions using vSAN and Storage Space Direct technologies;
Experience with scripting for Linux (bash), Windows (PowerShell), and version control (Git)
Prepare automation scenarios to perform routine tasks (Ansible, Microsoft System Center);
Extensive experience with a variety of routing and switching platforms
Good understanding of OSI model, TCP/IP, related networking protocols and technologies (TCP, UDP, DNS, DHCP, NAT, etc.), security-related protocols (SSH, HTTPS, IPsec, etc.)
Expert knowledge of VLAN, layer 2 switching and layer 3 routing
Experience with network dynamic routing protocols BGP, OSPF
Experience with network security, Firewall, ACL, tunneling protocols; IPSec