Oumarou B. - WAN & Data Center Network Administrator

Nuremberg, Germany

Experience

Sep 2024 - Present

1 year 4 months

WAN & Data Center Network Administrator

Teamative Germany GmbH

Implementation, administration, configuration, and operation of Cisco network components (PE-CE routers, provider routers, SD-WAN, switches, access gateways)
Ensuring availability, performance, evolution, and operation of the state's WAN access network infrastructure
Creating technical documentation in FNT Command
Troubleshooting and handling incidents, changes, requests, and problem tickets
Tools: ITSM, Command-FNT, Orion, ASDM, Panorama
Scripting: Bash Shell, Python, Ansible
Protocols: IS-IS, BGP, MPLS, VRF, GETVPN, Segment-Routing, Static Routing
Devices: NCS-57C3 Series, ASR-1000 Series, ISR-4331, ISR-4451 SD-WAN, Catalyst 9k Series, Nexus 9k Series
Firewall: Check Point, Palo Alto, Cisco ASA-5585 and FWSM

Dec 2023 - Aug 2024

9 months

Network & Security Engineer

März Network Services GmbH

Support Cisco ASA firewall and UTM
HSRP, VSS, Stackwise Virtual, VRF, BGP, OSPF
Daily tasks: handling incidents, service requests, and changes, managing and enabling firewall rules, cleaning up and migrating firewall rules
Software Release Management, Hardware Life Cycle
ISE policy configuration
Configuring routers and switches according to customer requirements
Managing external service providers
Assisting with network segmentation, NAC project, site-to-site VPN, and client-to-site VPN
Tools: ASDM, Prime, Jira, Confluence, Service-Now, Linux, Python Scripting
Devices: Cisco Catalyst 9500, 9400, 9300, Nexus 9k Series, FC Switches
Firewall: Cisco ASA5585, FPR 2140, FPR 3130, Sophos Proxy SG 310

Aug 2021 - Nov 2023

2 years 4 months

Network Engineer Firewalling

Computer Center AG

Member of the firewall team (security)
Second- and third-level support for Cisco ASA and Fortigate firewalls
Daily tasks: processing changes, incidents, and service requests; managing, enabling, cleaning up, and migrating firewall rules
Firewall configuration, upgrade, and installation
Tools: Arcsight, Omnitrekker, Spectrum, Cisco Security Manager, FortiManager, Tufin, Linux
Devices: Nexus 2k, 5k, 7k, 9k, 1000V; Firewalls ASA5585, 5545, 5525 Series, FG-200G, FG 2600F, FG 3500F Series

Sep 2020 - Jun 2021

10 months

Network Engineer

Hays AG Deutschland

Project at LEONI AG: migrating sites according to customer specifications
Deployment and configuration of network components L2 & L3
Troubleshooting Cisco routers and switches, life cycle management
Firewall configuration, commissioning, and rule enabling
Creating detailed documentation with Cisco Prime, ISE, and Visio
Third-level support
Tools: ServiceNow, Panorama, Netflow, Cisco Estimates, Linux
Devices: 2960X, 3850X, C9200, C9300, C9500, C9600, Nexus 3k, 5k, ISR4431; Palo Alto PA-220, PA-820, PA-3430, PA-5450; WLAN WLC5520, AP2802I/E, C9120AXI/E
Protocols: STP, HSRP, VRF, VSS, VPC, VDC, OSPF, EIGRP, MPLS

Aug 2019 - Aug 2020

1 year 1 month

Network Engineer - Technical Lead / Freelancer

Global NTT Germany

Project at MAN Truck & Bus AG: deployment and configuration of Cisco components L2 & L3
Troubleshooting Cisco routers and switches, software release management, life cycle management
Handling incidents, requests, changes, and problem tickets
Enabling firewall rules
Documentation in Command-FNT
Tools: System Monitoring ITAS, Jira, Confluence, Cisco Prime, ISE, Service Center II, Cisco ACI, MS Visio
Second- and third-level support
Devices: Cisco 6807-XL, 6880X, 6506, 4900, 4503, 3750 Stack, 3560, 2960X Stack, 3650, 3850X, C9200, C9300, C9500, C9600; Nexus 2k, 5k, 9k
Firewall: ASA5545, 5525 Series; WLAN: WLC5520, AP2702I, AP2702E, AP2802I, AP2802E, IW3702
Protocols: STP, HSRP, VRF, VSS, VPC, VDC, OSPF, BGP, MPLS

Nov 2018 - Jul 2019

9 months

Network Engineer Firewall

Computer Center AG

Project at German Aerospace Center (DLR), member of the security team
Day-to-day: incident and service request handling, firewall rule management and cleanup
Second and third level support
Tools: ISE, Arcsight, Omnitrekker
Devices: Nexus 5k, 6k, 7k; Firewalls ASA5585, 5545, 5525, 5515, 5505 Series

May 2014 - Oct 2018

4 years 6 months

On-site

Network Engineer – On Site Technical Lead / Freelancer

Dimension Data Germany

Project at MAN Truck & Bus AG: distribution/core migration, LAN refresh, device lifecycle
Firewall migration from Genua-Box to Cisco ASA5545
Deployment and configuration of Cisco L2 & L3 switches, customization according to customer requirements
Troubleshooting Cisco routers and switches, IOS upgrades and rollouts, handling EOS/EOL upgrades
Processing service tickets, firewall rule activation
Creating detailed documentation in Command-FNT
Tools: Cisco ACI, Cisco Prime, Service Center, Command-FNT, Jira, Confluence
Second and third level support
Devices: Cisco 6807-XL, 6880X, 6506, 4900, 4503, 3750 Stack, 3560, 2960X Stack, 3650 Stack, 3850; Nexus 2k, 5k, 7k, 9k
Firewall: Genua-Box, ASA5545, 5525 Series; WLAN: WLC 5508, WLC5520, AP1142, AP1242AG, AP2702I, AP2702E, IW3702
Protocols: STP, VTP, HSRP, VRF, VSS, VPC, VDC, OSPF, EIGRP, BGP, MPLS

Feb 2014 - Apr 2014

3 months

On-site

Onsite Support-Engineer

SOLCOM Unternehmensberatung GmbH

Data center migration
Installation of hardware components
Configuration of Cisco routers and switches according to customer requirements
Troubleshooting Cisco routers and switches
Cabling (copper and fiber), cable labeling and rack modifications
Creating detailed documentation
Devices: Cisco Catalyst 6509, 3560, 2960; Nexus 2k, 5k; Firewall ASA 5585-X Series

Aug 2013 - Dec 2013

5 months

Remote

Network Specialist

SPIRIT21/AG

Project at IBM-IMS, Network Remote Services
Day-to-day: ticket processing, installations and configurations
Administration of routers, switches, firewalls, VPNs, security solutions, WLC and APs
Troubleshooting
Devices: Cisco 76xx, 65xx, 37xx, 28xx; Cisco Switches 65xx, 45xx, 35xx, 29xx; Juniper EX6200-SRE64-4XS, EX4200, EX4300-48P; Procure LAN SW 2620-24 PoE, 2510-48G; Firewall ASA 55xx Series, Check Point R75

Apr 2013 - Jul 2013

4 months

Network Specialist & In-House Coaching

IPNetON GmbH

Installations and configuration management
Design, operation and administration of routers, switches, ASA 5505 security solutions and unified wireless environments
Ensuring operation of a highly available LAN infrastructure
Troubleshooting

Oct 2012 - Apr 2013

7 months

Project Assignment

Kabel Deutschland Vertrieb und Service GmbH

Expertise with Cisco devices (routers and switches)
Device testing, setup, and configuration
Reading SNMP MIBs and comparing them with the running config and the network management system
Experience with IBM Tivoli Network Manager for IP, SNMP v2c
Documenting device components and modeling
Researching and documenting product specifications and order information
Inventory and network audit to prepare for NMS implementation and modernization
Devices: Cisco routers 76xx, Cisco switches 45xx, routers 65xx, routers 28xx and 37xx, WS C29xx switches, C35xx switches, ASA 55xx firewall