12/26/2025 updated

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NETWORK CONSULTING ENGINEER, CISCO NETWORK ENGINEER, ON SITE IP ENGINEER

Nijmegen, Netherlands Master of Science
Nijmegen, Netherlands Master of Science

Profile attachments

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About me

https://www.youtube.com/watch?v=ban-v6YXTzo https://www.youtube.com/@BariNetworkConsulting

Operating systems, Windows XP/7/10, Windows 2012 Server, LINUX, UNIX. HP OPENVIEW. OpenStack, Fiber/CAT5, LAN, WAN, Frame Relay, MPLS, ISDN, SDH, DWDM, Microsoft Products, Word, Excel, Outlook, Visio, Power Point, SNMP Network Management Applications, Spectrum, Tivoli, Alcatel SH, RM, Service Center, Cisco: 2500, 2600, 2960, C3550, C3560, 3600, C3750, C4506, C6513, 7200 series, ASR1K, ASR9K high end routers, Nexus 1K, 5K, 7K, Wireless APs, WLC, ASA558x, Brocade, MLXe-8, MLXe-16 Core routers, FCX, F5: BigIP Load Balancer, Juniper, EX2200 L3 switches, Netscreen-ISG 2000, IP Network Management, Remote Access, CA Spectrum, Ethernet, VLANs, VTP, Dot1q trunking, Etherchannel, Spanning Tree, MSTP. PPP, PPPoE, Layer 2, Tunneling, VRF Light, WIFI, 802.11a/b/g, 802.11ac, RIP, EIGRP, OSPF, BGP. IPv6 Routing Protocols, RIPng, OSPFv3, BGP for IPv6, IGP Redistribution. IP Multicast Routing, VPN Routing, Load distribution, IP Services, TCP/IP, Traffic Monitoring, NAT Load balancing, DNS, DHCP, CDP. IP SLA, WEB Caching, Traffic Accounting, NTP, Syslog, SNMP, Banners, QoS Traffic Shaping, Policing, Congestion Management, Congestion Avoidance, WRED. Real Time Protocol, IPv6 IPv6 Addressing, IPv6 Tunnelling, IPv6 Filtering, IPv6 over Frame Relay, WIFI Security, TACACs, RADIUS, ACLs, Reflexive ACLs, DoS Filtering, Traffic Filtering, Authentication, SSH, MAC Filtering, VLAN ACCESS MAPS, Python Scripting, Firewall, Python scripts, routers, SIEM, Splunk, network analysis, Microsoft Visio, SDN, OpenFlow, OpenStack, VMware, Firewalls, F5 BigIP. Ansible, Docker, Kubernetes, IOS, Cisco Routers, Switches, Firmware, network design, bugs, Interface, Virtualization, Juniper Firewall, Netscreen-ISG, ISDN/X25, VPN, IP, MPLS networks, Multicast, Routing Protocol, ITIL, LAN/SAN, IPSec, VPNs, LAN / WAN, Jabber, VLAN, Trunks, Tunnelling, RIPv2, BGP, Cisco switches, Cisco 2950, 3550

Languages

GermanGoodEnglishFluentFrenchGoodDutchGood

Project history

IT FREELANCER / CONTINUOUS TRAINING & CONSULTING

Freelancer

Internet & IT

< 10 team member

  • Focused on network automation, hybrid IT infrastructures, and security solutions
  • Independent training in Cisco ACI, Python scripting, and SD-WAN technologies
  • Preparing for the Cisco DCACI certification exam
  • Providing remote consultation and strategic guidance in network architecture and design

SUBJECT MATTER EXPERT: TRANSFORMATION PROJECT

Röhm

Other

1000-5000 team member

  • Python Scripting to generate Excel Asset List documentation of an 800 network Cisco devices.
  • Zscaler Network Administration & Support by Implementing security policies.
  • On site and Remote Support for Network devices: Changes, Switches, Fortinet and ASA Firewalls.
  • Configuring Layer2 and Layer3 protocols and troubleshooting STP, Rapid STP, MST and Redundancy Protocols such as HSRP and VRRP.
  • Support the 2nd line support in BGP and OSPF implementations and troubleshooting.
  • Support the Network Transition and Transformation Project
  • Configured SD-WAN Connections using Fortigate Firewalls.
  • Configuration and Administration of Tacacs+ and ISE servers.

SENIOR NETWORK AND MIGRATION ENGINEER

T-Systems Nürnberg

Internet & IT

>10.000 team member

  • Python Scripting to generate Word Documents (Firewall Rule Reports) from Cisco ASA Config files.
  • Written Python scripts to automate the software upgrade of over 800 routers in a live network.
  • Migrating Network switches from Cisco Nexus 7K to Nexus 9K.
  • Configuring VPC, VDC, VRF lite, MPLS-VPN networks (PE-CE) in Data Centre environment.
  • Network Management using Cisco Prime.
  • Provided 2nd Line Support to the Network Operations Team in implementing changes.

NETWORK ARCHITECT

DIEBOLD NIXDORF, PADERBORN

Banking & Financial Services

>10.000 team member

  • Worked as a Network Architect, designing and proposing tailored network solutions for enterprise customers
  • Created and presented technical offers and solution concepts aligned with customer requirements and business goals
  • Supported pre-sales activities by evaluating customer environments and recommending scalable, secure network architectures
  • Collaborated with engineering and delivery teams to ensure feasibility and consistency of proposed designs

CISCO NETWORK SPECIALIST

STUTE LOGISTICS, BREMEN

Transport & Logistics

1000-5000 team member

  • Supporting and coaching a junior Support Team. Analysed current network. Added Value to the existing Network by Adding a great Solution that the customer was very happy with.

NETWORK SECURITY ENGINEER

SDV-IT, NÜRNBERG

Banking & Financial Services

250-500 team member

  • Configuring Cisco devices to generate log messages to control Critical Activities to Splunk.
  • Designed, Tested and Created necessary Configurations for Cisco routers, Switches and ASA Firewalls
  • Written Python Script to generate Word Documents (Reports) from ASA Firewall configurations.

SENIOR NETWORK ENGINEER

NEXINTO GMBH, HAMBURG

Internet & IT

50-250 team member

  • Supporting customers in network analysis, planning, design, development, testing and implementation of Network Infrastructure.
  • Configuring and Troubleshooting IPsec VPN and MPLS Connections
  • Providing remote support to Field Engineers and End customers.
  • Documentation of Network Diagrams using Microsoft Visio.

VARIOUS ROLES: NETWORK ENGINEER, CONSULTANT, AND TECHNICAL SPECIALIST – GERMANY & NETHERLANDS

Cisco, Alcatel, Lucent, Brocade, BT.

Internet & IT

>10.000 team member

  • Gained extensive hands-on experience in routing & switching, network migrations, and service provider environments, including projects with Cisco, Alcatel, Lucent, British Telecom, T-Systems, Alcatel-Lucent, and Brocade technologies
  • Delivered large-scale network deployments, LAN/WAN upgrades, and SDH/DWDM integrations for enterprise and government clients (including U.S. military sites and telecom providers)
  • Supported 2nd/3rd-line network operations and provided deep troubleshooting for complex multi-vendor infrastructures across Europe
  • Led configuration, validation, and documentation of IP/MPLS, VPN, and security solutions in data centers and customer networks
  • Built automation tools early in career (macro scripting) and maintained strong technical documentation and process optimization skills

Certificates

Verification Number: 396724168445INUN

Cisco Systems (CCIE)

2011


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