Dusko Brnic

Administration of underlying architecture: VMware ESXi hypervisor, Storage, Backup (Commvault, Veeam), SAN, Firewall administration (Cisco, Fortinet, Juniper) Administration of microservices: K8S cluster administration (Rancher, Bamboo, Bitbucket) F5 administartion (AS3 configuration)

Maintain, configure and troubleshoot, both, IT part and network part of Mtel Data Center which is Huawei FusionCloud datacenter that use FusionSphere (OpenStack version Mitaka) as the cloud platform and ManageOne as DC management software. Configure and troubleshoot OpenStack services (computing KVM hypervisor nodes and controller nodes, examine logs, trace files...); Set rules, policies and configure services on security devices configuration Huawei firewalls and BIG-IP system F5 loadbalancer;

Maintainance and audit Comverse SMSCs and communicate with the customers on daily basis; Handling SRs (Service Request) under SLA (Service Level Agreement); Prepare procedures (statement of work) relative to system upgrade, configuration changes and other things; Install packages, change configuration of the system files and do other changes on customer demand (Linux/Unix based systems); ...

Manage and maintain supported and subsequent relevant Microsoft (MS) Windows server operating systems (OS) on physical environments, providing technical oversight and consultation services; LAN and WAN administration and network troubleshooting, configuration and maintenance switches/routers (Cisco equipment); Create and perform system backup and disaster recovery procedures for Windows server environments. Provide training in application software for the organizational units;