Managing role.40 employees: Network Engineers, Infrastructure Engineers, DBA, Application Support Engineers, Monitoring Team, HelpDesk.Area of responsibility:Capacity and budget planningReducing risk of technical downtimeIncident, problem and change managementNegotioation with service providers and vendorsProviding cost-effective infrastructure and support serviceHiring, team-buiding, annual assesment based on personal development plansCompleted projects:Migrating payment service from cloud to own infrastructureMigrating DC within Metropolitan Area in 24hMeeting PCI DSS requirements Optimizing network core infrastructure to reduce risk of downtimeLaunching ATM networkReplacement of antivirus software for Linux and Windows serversDeveloping a tool and a process for automated management servers via Ansible and AWXTechical Solutions:Network: Cisco Catalyst 3850/2960, Juniper EX3300/2200Cisco ISR4xxxJuniper SRX100/240/1500Checkpoint 5600 as a Remote Access VPN gatewayFortigate 40/100Infrastructure: HPE DL and Dell PowerEdge servers, Infinibox, Dell PowerStore, HPE MSA storageVMWare vCenter 6.7Brocade SANVeeam Backup and ReplicationDB: Oracle 19c, Postgres 14, MS SQLMiddleware and application delivery:nginx, RabbitMQ, Redis, F5 BigIP, Graylog, Gitlab CI/CD

Managing and engineering role.As an engineer: support of entire enterprise network: 2 datacenters, 3 campus networks, about 250 front offices. Cisco ISR 29xx, Cisco ASR 1002-x, Cisco Catalyst 2960/2750/4500/6500, Cisco Nexux 5k/7k, Cisco ASA up to 5585-X, Cisco WLC 5508, F5 Big-IP i4600.As a manager:1. Building of 24/7 network support team2. Hiring, onboarding, semi-annual assesment based on personal development plans3. Participation in annual budget process (OPEX only)4. Cost reducing of payments for IP VPN and Internet connections

Entry level system administrator. Basic configuration of network equipment: VLANS, routing, site-to-site VPN, ACL. Cisco ISR 28xx/38xx, Cisco Catalyst 2960/3750Initial set up of bare-metal servers and virtual machines (VMWare ESXi) for network services like squid proxy, dhcp, dnsOS: Linux Fedora, FreeBSD, SUN Solaris, Windows Server 2008