10/27/2026 updated

**** ******** ****
100 % available

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

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

Profile attachments

CCIE-10-YEARS-Anniversary-Image.png
CCIE-Certification.png
CV_Update_April_16th_2026_(English).pdf
CV_Update_April_20th_2026_(Deutsch).docx
CV_Update_April_21th_2026_(Deutsch).docx

Cisco RoutersLinuxEthernetEtherChannelInternet Protocol Security (IP SEC)IPv6Virtual Private Networks (VPN)MulticastingRoutingOpenStackTCP/IPFirewalls (Computer Science)Cisco SwitchesCisco
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

Experience

Professional experience10+ years
Freelancer since2000

Languages

GermanGoodEnglishFluentFrenchGoodDutchGood

Project history

IT Freelancer

Freelance

Internet & IT

< 10 team member

Focus on network automation, hybrid IT infrastructures, and security solutions
• Advanced self-training in VXLAN, Cisco ACI, Python, Ansible and AWX automation tool, SD-Access, and SD-WAN technologies
• Strong knowledge of TCP/IP, routing (static, OSPF, BGP, MP-BGP), ACLs, and NAT, with solid Layer 2 fundamentals (STP, VLANs, trunking, EtherChannel, HSRP, vPC)
• Experience in structured troubleshooting of complex network issues (Layer 2–Layer 7)
• Hands-on experience with IPsec VPN (policy-based and route-based), with knowledge of VRF, VPNv4, and MPLS VPN
• Experience with Cisco and Arista networking platforms in enterprise and data center environments
• Knowledge of modern data center architectures (spine-leaf, underlay/overlay, VXLAN/EVPN)
• Fundamental expertise in firewall and load balancing concepts (e.g., Cisco ASA, FortiGate, L4/L7 principles)
• Configuration and administration of Cisco ASA55xx and FortiGate virtual appliances
• Implementation of DMVPN Phase 3 with IPsec encryption (IPv4 & IPv6)
• Network automation and documentation using Python.
• Familiarity with ITIL-based processes (incident, change, and ticket => management ServiceNow ITSM)
• Providing remote consulting and strategic guidance in network architecture and design
• Analytical, structured, and solution-oriented working style with willingness for on-call support
• CCIE Enterprise Infrastructure recertification in progress.

Subject Matter Expert: Network Transformation Project

NTT

Internet & IT

5000-10.000 team member

• Executed VLAN/subnet migrations with minimal downtime
• Implemented HSRP, VRRP and Spanning Tree enhancements for high availability
• 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, Layer3 protocols and troubleshooting STP, Rapid STP, MST and Redundancy Protocols such as HSRP
• Support the Network Transition and Transformation Project
• Configuration and Administration of Tacacs+ and Cisco ISE servers

Senior Network Migration Engineer

T-Systems

Internet & IT

>10.000 team member

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

Network Architect

Diebold Nixdorf

Internet & IT

5000-10.000 team member

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

Cisco Network Specialist

Stute Logistics

Transport & Logistics

500-1000 team member

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

Network Security Engineer

SDV-IT Nürnberg

Banking & Financial Services

1000-5000 team member

SIEM Project at SDV-IT Nürnberg
  1. Configuring Cisco devices to generate log messages to control Critical Activities to Splunk
  2. Designed, Tested and Created necessary
  3. Configurations for Cisco routers, Switches and ASA Firewalls
  4. Written Python Script to generate Word Documents (Reports) from ASA Firewall configurations

Senior Network Engineer

Nexinto GmbH

Internet & IT

500-1000 team member

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

Various Roles: Network Engineer, Consultant, and Technical Specialist - Germany & Netherlands

Alcatel, Lucent, T-Systems, Alcatel-Lucent, British Telecom

Internet & IT

>10.000 team member

  1. 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
  2. Working as 2nd and 3rd Level Support using ITSM and monitoring tools such as BMC Remedy, IBM Tivoli
  3. 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)
  4. Supported 2nd/3rd-line network operations and provided deep troubleshooting for complex multivendor infrastructures across Europe
  5. Led configuration, validation, and documentation of IP/MPLS, VPN, and security solutions in data centers and customer networks
  6. 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

Contact form

Log in to get in touch

You need to be logged in to use the contact form.

Sign upLog in