Marcin Rotko

WORK HISTORY

EDUCATION

ABOUT MARCIN ROTKO

Experience:October 2019 - PresentTechnical Services Network Engineer Expert | Fujitsu | KatowiceKey responsibilities- Troubleshooting customer related incidents within a scope of Layer 2 / Layer 3 / Layer 4 OSI Model - Taking over incidents and tasks not resolved or completed by NOC 2nd Line Team - Opening TAC cases with vendors to report bug or request involvement for deep dive troubleshooting - Setting up Site to Site VPN tunnels with customer related 3rd party companies- General administration of CISCO ACI solution- Deploying Load Balancer virtual servers as per designed solution- Assessing and implementing requests related to firewall openings within customer DC- Performing Upgrades of Network Equipment: CISCO: Catalyst, Nexus, Fortinet: Fortigate FW’s, Fortiswitches, Load Balancers: A10, Citrix ADC Netscalers- Responding to SNMP alerts for device/location outages - Assisting onsite in replacing network equipment – remote configuration of network devices January 2017 – September 2019IP Network Specialist | Netia S.A.| Katowice Key responsibilities- Supporting Business as Usual network operations for multiple clients - Taking over incidents and tasks from clients - Opening TAC cases with vendors to report bug or request involvement for deep dive troubleshooting - Troubleshooting issues with Layer 2 / Layer 3 / Layer 4 OSI Model - Assisting onsite in replacing network equipment – remote configuration of network devices - Performing Upgrades of CISCO, JUNIPER router, switches - Managing and troubleshooting services: Ethernet L2, L3, IPVPN MPLS, IPSec - Responding to SNMP alerts for device/location outages - Updating CMDB of managed devices- Management and configuration of vendors devices: Cisco, Juniper, Alcatel-Lucent, Brocade, Huawei and othersMarch 2007 – December 2016Service Provisioning Specialist / IP Services Specialist | Ericsson | KatowiceKey responsibilities- Supporting Business as Usual network operations for multiple clients- Responding to network related users incidents and requests - Performing system upgrades of network infrastructure devices (Cisco Catalyst, Nexus switches)- Managing policies ASA Firewall devices - Reducing vulnerabilities in the configuration of CISCO ASA Firewalls by adhering to CISCO security benchmark (CIS)- Management and configuration of vendors devices: Cisco, Juniper, Alcatel-Lucent, Brocade, Huawei and others- Managing and troubleshooting services: Ethernet L2, L3, IPVPN MPLS, IPSec - Responding to outages of WAN / MPLS links and actioning it to ISP