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Profileimage by Fabrice Bendfeldt Network Consultant / Datacenter Field Service Engineer from Wien

Fabrice Bendfeldt

Wien
not available until 07/01/2025

Last update: 04.05.2025

Network Consultant / Datacenter Field Service Engineer

Company: Fabrice Bendfeldt Network Consulting e.U.
Graduation: Master of Science
Hourly-/Daily rates: show
Languages: German (Native or Bilingual) | English (Full Professional) | French (Elementary) | Spanish (Elementary)

Keywords

Attachments

Fabrice-Bendfeldt-CV-2025_040525.pdf
Fabrice-Bendfeldt-Lebenslauf-2025_040525.pdf

Skills

My focus is on network engineering tasks using state-of-the-art technologies, especially in service provider (ISP) environments.

I am also offering to arrange your datacenter related tasks. This could be setting up a new PoP or moving your hardware between different sites. Last but not least I am providing on-site remote-hands services in Central Europe.

I am currently looking for freelancing projects with a duration of 3 to 6 months.

Details about my services, contact details, as well as a list of previous projects and a skill list can be found on my website

https://www.fabricebendfeldt.com/

Project history

05/2025 - 05/2025
CPE Engineering and Automation of Configuration Changes on a Nationwide ISP Network
Bechtle Austria (Telecommunications, >10.000 employees)
This project aimed to automate and standardize the configuration rollout across a nationwide infrastructure of approximately 10,000 Cisco devices running Cisco XE, serving as CPE (Customer Premises Equipment). The main focus was on improving security, service quality, and manageability of the network by applying configuration changes across multiple areas using modern automation tools.
  • Definition of configuration templates addressing SSH hardening, Quality of Service (QoS), Cisco Embedded Event Manager (EEM) policies, and Management ACLs
  • Implementation of automation workflows using the Nornir framework
  • Development of Python scripts and playbooks to execute and validate changes across the entire device estate
  • Traffic analysis to define appropriate MTU and MSS values for various services and interconnects
  • Verification of configuration changes using test environments and phased rollout strategies
  • Extensive testing and validation across network segments to ensure business continuity and compliance
  • Generation of detailed rollout reports, including deployment performance metrics, encountered issues, and affected devices
  • Documentation of rollout procedures and fallback scenarios
  • Coordination with internal teams and change management to ensure smooth deployment with minimal disruption
The outcome of the project was a fully automated, repeatable process for deploying critical configuration updates across a large-scale network while significantly reducing manual effort and the risk of human error.
01/2022 - 06/2023
Infrastructure Engineering for IXP PoP Deployment
DE-CIX Management GmbH (Internet and Information Technology, 250-500 employees)
This role is primarily about deploying new international points of presence (PoPs) to enhance the global footprint of the largest internet exchange point (IXP). The environment is primary based on Nokia and Juniper devices. Activities in the scope of the project have been performed on-site or by coordinating local staff.
A regular rollout includes a variety of tasks:
  • Developing a site specific design
    • Creating the rack layout, defining ports, allocating interconnections
    • Designing the OOB network
    • Identifying and acquiring the hardware based on the site particularities
  • Provisioning the colocation space
    • Organizing datacenter access
    • Outlaying the cross-connects / pre-cabling / ODFs
    • Reviewing and documenting the local DC assistance procedures
  • Configuration of production and management networking devices
    • IP design
    • OSPF, LDP, MPLS routing
    • Out-of-band management access
  • The deployment of DWDM optical systems on metro interconnects
  • Integration of network devices into automation tools
    • Customer service provisioning process
    • Configuration backup
    • Monitoring
    • Traffic flow analysis
    • Peering Service
  • Testing of network and service reliability
  • Finalizing the buildup
    • Integration of new routers into global EVPN/MPLS backbone
    • Scheduling and executing the customer migration over to the new switching platform
    • Documenting the newly deployed installation in Netbox and Confluence
    • Handover to network operations team
10/2021 - 03/2022
Network Architect for a EVPN/VXLAN Datacenter
Computacenter AG & Co. oHG (Internet and Information Technology, >10.000 employees)

This project was about setting up a redundant multisite datacenter in Germany covering 60 server racks at each location.
The assignment of the network architecture team was to design the datacenter LAN based on Cisco EVPN/VXLAN technology as well as an out-of-band and a DMZ network using traditional Cisco Nexus networking.

Performed tasks in scope of the high and low level design have been:

  • Creating the routing concept for EVPN/VXLAN including complex WAN connections
  • Aligning the proposed solution with the professional services teams of the hardware vendors (Cisco, Dell, Microsoft, Checkpoint, Genua)
  • Coordinating with other architects about connecting the services of their sub-projects (VMWare, Hyperview, Citrix, Storage)
  • Elaborating the rack-layout for networking equipment
  • Planning the structured inter- and intrasite-cabling
  • Creating configuration templates for Cisco Nexus devices implementing a vPC/STP design
  • Designing the security infrastructure of the DMZ by implementing a P-A-P architecture using Checkpoint and Genua firewalls
  • Developing a procedure for the service migration
09/2019 - 05/2021
Network Engineer
Anexia (Telecommunications, 250-500 employees)

  • Rollout of global network infrastructure based on Juniper 100G-Routers and -Switches

  • Extension of the network automation based on Python, Ansible and Docker

  • Responsibility for the design of the network blueprint, which is deployed worldwide

  • Enhancement of the monitoring systems PRTG, Observium and Prometheus

  • Ensuring high availability of the global network consisting of 90 locations

  • Detailed error analyzes with time-critical aspects

10/2016 - 03/2018
Platform Engineer
Deutsche Telekom Technik GmbH (Telecommunications, >10.000 employees)

  • Planning, conception and design of high-availability network infrastructures in context of DNS and network control

  • Development of configuration templates for network components

  • Project management for the introduction of new technologies

04/2015 - 03/2018
Study (Master of Science)
TU Darmstadt, Germany (Telecommunications, 500-1000 employees)
Focus at University: Network Security (Communication Networks, Mobile Networks, QoS, Secure Mobile Systems, PKI)

Master-Thesis: "Reverse Engineering the Apple CDN Architecture and Analyzing its Impact on ISP Networks"
03/2015 - 09/2016
System Engineer
Deutsche Telekom Technik GmbH (Telecommunications, >10.000 employees)

Engineering for the IMS-Platforms „Fixed Network“, „Voice over LTE (VoLTE)“ and „Rich Communications Suite (RCS)“

  • System engineering for IMS-core components (P- CSCF, A-BGF)

  • Project management for capacity expansion measures

  • Negotiations with IMS vendors regarding the design of new features

  • Traffic analysis in IMS-core

09/2011 - 03/2015
Trainee Program (Bachelor of Sciene)
Deutsche Telekom AG & University of Applied Sciences Darmstadt (Telecommunications, >10.000 employees)

Trainee program including bachelor degree at the university and the following company projects at T-Systems:

  • Software development (Java, Apache Maven)

  • Automated testing (Java, Selenium)

  • Digital forensics (detection of advanced persistent threats, automatic malware detection)
     

Focus at University: Telecommunication (Routing, Switching, Cryptology, IT-Security, Multimedia-Networks, Networking)

Bachelor-Thesis: "Malware Detection using a String Based Machine Learning Approach"

Local Availability

Open to travel worldwide
Ich biete meine Network Engineering Dienstleistungen in erster Linie remote an. Eine oder zwei Kennenlern-Woche(n) zu Beginn eines Projektes in Ihrer Firma ist natürlich kein Problem.

Meine Dienstleistungen im Bereich vor-Ort Remote-Hands können europaweit in Anspruch genommen werden.
Profileimage by Fabrice Bendfeldt Network Consultant / Datacenter Field Service Engineer from Wien Network Consultant / Datacenter Field Service Engineer
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