Moving packets
and people again.

Profile

Networks are infrastructure. Good engineering makes them disappear.

Hello there - you used the Internet to reach this site. I happen to work with some of the devices and protocols that build and run it for a living.

I am a network engineer living in 3812 Wilderswil and working in Interlaken, Switzerland, with more than two decades across carrier backbones, enterprise networks, energy infrastructure and public-safety communications. Today I make sure the trains can do the same, in a group where the first routes climbed these mountains in 1895 on little more than steam, steel and a keen sense of timing - adding a digital layer to over a century of Swiss mountain railway heritage.

Residence

3812 Wilderswil, Switzerland

Workplace

Interlaken, Switzerland

Languages

German (native) · English (full professional)

Focus

Design · Engineering · Operations

Top skills

Network Design · Network Engineering · Network Operations · Network Security · Critical Infrastructure

Born

16 December 1979 · Wesel, Germany

Experience

1. 02/2026 - now

   Senior Network Engineer

   Jungfraubahnen - Interlaken, Canton of Bern, Switzerland · On-site

   Moving packets and people again - network engineering and operations for the Jungfrau railway group.

   [network engineering] [network operations] [system administration] [customer support]

2. 01/2022 - 01/2026

   Senior Network Engineer WAN

   Axpo Systems AG - Belp, Canton of Bern, Switzerland · Hybrid

   Network design, engineering and operations for mission-critical networks - the Swiss emergency radio network Polycom, OT networks for power generation and transport, and rail and highway operators in the public and private sector. Designed aXbone NG, the next generation of the Axpo core across Switzerland, and managed the RIPE LIR resources for AS60284.

   [ip/mpls] [mpls-tp] [bgp] [evpn] [flexe] [ripe lir] [juniper mx] [eci/ribbon] [huawei] [aviat] [critical infrastructure]

3. 08/2020 - 12/2021

   IT Network Engineer

   Bern University of Applied Sciences · BFH - Bern, Switzerland · Hybrid

   Responsible for the complete network infrastructure of a Swiss university of applied sciences across multiple campuses - network automation strategy, design, build and operations for WAN, LAN, Wi-Fi, Internet connectivity and data centres inside a Linux and open-source focused team.

   [cisco] [arista] [sdn] [ansible] [evpn/vxlan] [ipv6] [linux] [dns]

4. 04/2020 - 07/2020

   Customer Solution Authority

   Vodafone Business - Düsseldorf, Germany

   Technical and engineering authority for a dedicated customer account - reviewing all solutions and services in use, with global network design, solution architecture, change management, technical consulting, innovation management and service delivery.

   [network architecture] [solution architecture] [change management]

5. 12/2018 - 03/2020

   Sales Engineer

   Colt Technology Services - Greater Düsseldorf Area · Hybrid

   Technical sales support and solution design for data services in the Professional Services department - Adva, Ciena, Cisco and Juniper platforms, physical and virtual firewalls, and DDoS detection and mitigation services.

   [pre-sales] [network design] [ddos mitigation] [adva] [ciena] [juniper]

6. 01/2016 - 11/2018

   Administrator 2nd Level Data

   1&1 Versatel - Essen, Germany

   Operations and troubleshooting for the 1&1 Versatel IP network - public IP core and edge AS8881, MPLS VPN core AS15717 and the metro NGN edge - in a Cisco and Huawei multi-vendor environment.

   [as8881] [bgp] [ospf] [mpls] [vpn] [firewalling] [ipv6] [xdsl] [bras] [huawei] [cisco]

7. 01/2014 - 11/2015

   Consulting Network Products Engineer

   Verizon Enterprise Solutions - Dortmund, Germany · On-site

   Strategic product development and engineering for new network offerings.

   [product engineering] [network design]

8. 03/2008 - 12/2013

   Consulting Engineer · Network Planning & Engineering Europe

   Verizon Enterprise Solutions - Dortmund, Germany · On-site

   Technology responsible for the European core and backbone AS702 - architecture, traffic engineering, private and public peering, end-of-life programmes, vendor engineering relationships and proofs of concept on a multi-vendor platform.

   [juniper m/mx/t/ptx] [cisco gsr/crs] [bgp] [is-is] [ospf] [mpls] [rsvp-te] [ldp] [vpls] [ipsec] [l2tp] [arbor tms] [ipv6]

9. 03/2001 - 02/2008

   IP Network Engineer · IP NOC Technician · NMC Transmission

   HanseNet - Hamburg, Germany · On-site

   Started in March 2001 in the HanseNet network management centre on transmission (SDH, PDH, microwave, DWDM, POTS, ISDN, G.SHDSL, V5.2 telephony), moved to the newly established 24/7 IP NOC in 2002 and to third-level IP network support for AS13184 core, edge and access in 2003 - Juniper ERX and E320 BNG/BRAS, Juniper T, M and MX core, Cisco and Alcatel CPE, Siemens DSLAM.

   [as13184] [sdh/pdh] [dwdm] [microwave] [v5.2] [juniper erx/e320] [bgp] [ospf] [mpls] [vpn] [qos/cos] [ip operations]

10. 09/1997 - 02/2001

    Communication Electronics Technician

    Deutsche Bahn AG - Wuppertal, Germany

    Vocational training at Deutsche Bahn with the Berufskolleg am Haspel, Wuppertal.

Expertise

Architecture

Carrier-grade core, backbone, and WAN design with a long operational horizon.

Routing

BGP, IS-IS, OSPF, MPLS, EVPN, and the policies that keep traffic predictable.

Transport

Ethernet, FlexE, DWDM, SDH, PDH, microwave, and legacy interfaces where they still matter.

Automation

Open tooling, Linux, and repeatable workflows for dependable network operations.

Skills

Top skills

Network Design · Network Engineering · Network Operations · Network Security · Critical Infrastructure

Routing & protocols

IP · TCP/IP · IPv6 · BGP · OSPF · IS-IS · MPLS · SRv6 · VPLS · EVPN · EVPL · VPN · L2/L3 protocols · Routing Protocols · QoS

Transport & access

Ethernet · Metro Ethernet · DWDM · SDH · Transmission · WAN · Enterprise Network · Next-Generation Network · Internet Services · VoIP

Security & platforms

Firewalls · Cloud Networking · Cloud Computing · Cloud Security · System Administration · Telecommunications · Digital Transformation · Customer Support

Credentials