Simon Leinen

I've been working for SWITCH since October 1996.  SWITCH is a non-profit organization to provide networking and IT services to the Swiss academic and research communities.

Since October 2011, I work in the Infrastructure & Data (formerly "Peta Solutions") team within SWITCH.  We support researchers with their network and IT needs.  The main thrust of our team these days is to design and deploy "cloud" infrastructure for the benefits of the Swiss academic community.  The infrastructure supports the SWITCHengines "IaaS" (infrastructure as a service) services including OpenStack-based virtual machines (VMs) on demand, and also higher-level services such as the SWITCHdrive file synchronization and sharing service.  The infrastructure should be cost-effective, scalable, easy to operate in a reliable manner, and provide awesome connectivity via our backbone network.

Before October 2011 I worked at a network engineer in the Network/LAN team, for the last ~two years as a team leader.  During that time I participated in running SWITCH's IP backbone network, helped introduce technologies such as IPv6 and raise awareness for them, built and operated a traffic accounting infrastructure for SWITCH based on Cisco Netflow, and participated in the IETF, in particular the netconf (which I used to co-chair) and ipfix WGs.

For up-to-date professional information, check my LinkedIn profile. Occasionally I share my wisdom on my personal blog or on our cloudblog.  I also have some stuff on GitHub. A List of publications can be found on Google Scholar. Lately I have started to post presentations on SlideShare.

Research Interests


Here is the ID/fingerprint of my current PGP key:
pub   4096R/0xA508F1DB325EE1C0 2017-04-19 [expires: 2032-04-15]
      Key fingerprint = 65A5 F311 1F45 12B5 67A6  09B4 A508 F1DB 325E E1C0
uid                 Simon Leinen (SWITCH) <>
uid                 Simon Leinen <>
uid                 Simon Leinen <>
sub   4096R/0x818E037659B8B7EC 2017-04-19 [expires: 2032-04-15]
My older key is also still valid, but please don't use it anymore because its crypto is shaky:
pub   1024D/0x294F87A7231B65D0 2007-03-06 [expires: 2022-03-02]
      Key fingerprint = 21C7 77AD 3DB8 71C0 DFE9  4641 294F 87A7 231B 65D0
uid                 Simon Leinen (private) <>
uid                 Simon Leinen <>
uid                 Simon Leinen <>
uid                 Simon Leinen <>
sub   2048g/0x2A6C430389F10AF5 2007-03-06 [expires: 2022-03-02]


Rowing, cycling, recreational programming, ev ad ing overpriced 3G roaming fees 

Short biography

I was born and went to school in the beautiful town of Bonn. Between 1984 and 1991, I studied CS at TU Berlin.  During some of that time, I also worked first at ZIB and then at GMD-FIRST (later integrated into FhG).  Between 1991 and 1995, I worked as a system manager of the Unix (Sun & SGI) boxes at the AI Lab at the Swiss Federal Institute of Technology in Lausanne (EPFL). During 1996 I worked as a technology consultant at IDS.

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