Oumarou B.
WAN & Data Center Network Administrator
Experience
Sep 2024 - Present
1 year 1 monthWAN & 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 monthsNetwork & 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 monthsNetwork 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 monthsNetwork 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 monthNetwork 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 monthsNetwork 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 monthsOn-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 monthsOn-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 monthsRemote
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 monthsNetwork 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 monthsProject 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
Jan 2005 - Feb 2010
5 years 2 monthsIT Specialist
World Vision Niamey, Niger
- Developing financial plans
- Network monitoring and VSAT operation
- Maintenance of LAN computer systems
- Configuring and installing Cisco 3560 and 2960 switches
- Administering Linux-based clients and client software
- Monitoring and coordinating data flow
Mar 1999 - Dec 2004
5 years 10 monthsSecurity Investigator (Info Sec)
US Embassy Niamey, Niger
- Leading a team of six staff members
- Point of contact for security issues
- Analyzing, designing, and implementing security procedures
- Training new staff on technical matters
- Acting as security advisor to the regional security officer
Languages
French
NativeGerman
AdvancedEnglish
AdvancedEducation
Oct 1994 - Sep 1997
MegaSystem University of Applied Sciences Niamey
Business Informatics · Niger
Oct 1989 - Jul 1994
L.I.K. Grammar School
Niger
Oct 1985 - Jun 1989
Comprehensive School CEG 6
Niger
...and 1 more
Certifications & licenses
CCNA Wireless
CCNP R&S
Tufin (TCSE)
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