Mark Schaefer
Angestellt, Senior Network Engineer, velia.net Internetdienste GmbH
Frankfurt am Main, Deutschland
Werdegang
Berufserfahrung von Mark Schaefer
3 Jahre und 10 Monate, Okt. 2019 - Juli 2023
Senior Network Engineer
Freeport-McMoRan
CCNP Enterprise certification. Experienced SDWAN (Velocloud), WAN (BGP), cloud (Azure), LAN (OSPF, EIGRP, *STP, HSRP), datacenter (Cisco Nexus). Firewall - Palo Alto (PCNSA certified) RIPE IPv6 Associate
5 Monate, Juni 2019 - Okt. 2019
Senior Network Engineer
Iron Mountain
Deploy new infrastructure networks in new and existing datacenters. Combination of Cisco ASAs, Meraki switches, and Palo Alto firewalls in combination with layer 3 Cisco switches using the IOS-XE platform.
1 Jahr, Nov. 2018 - Okt. 2019
Senior Network Engineer
TB Consulting
Design and plan network capacity expansion, upgrade monitoring. DMVPN deployment. WAN expansion.
6 Jahre und 3 Monate, Sep. 2012 - Nov. 2018
Lead Network Engineer
Lumen
Escalation point for advanced troubleshooting for high impact outages across LAN, WAN, and Wireless. Lead implementation for technologies such as QoS, Multicast, and MPLS to increase security and stability across the enterprise network. Participated in development of technology strategy. Migrated backbone from EIGRP to OSPF and implemented Enterprise MPLS VPNv4 network.
11 Jahre und 9 Monate, Apr. 2000 - Dez. 2011
Senior Network Engineer
NTT Communications | NTT Europe Ltd., Germany
Care and maintenance of hosting datacenter network infrastructure. Capacity planning and implementation. Fault detection and repair. Third level network issue support.
Sprachen
Englisch
Muttersprache