Ralf Horstmann

Experience

• 

  WebWasher AG

  Jan 2000 - Jan 2004

  Softwareentwickler

  • Ported web proxy product to Linux and Solaris (C++)• Build tools and packaging for Linux and Solaris• Worked on build and release automation for web proxy on Linux, Solaris, Windows (Ruby)• Contributed to Squid web proxy ICAP client development (C)• Infrastructure administration (CVS, network, build servers)

• 

  CyberGuard

  Jan 2004 - Jan 2006

  Senior Engineer

  • Developed quota module for web proxy product (C++)• Ported software product to hardware appliance• Administration UI and backend for OS, network, routing, system update (Ruby) • Operating system maintenance and build automation (hardened Linux)• Integrated libc with NPTL support

• 

  Secure Computing

  Jan 2006 - Jan 2008

  Principal Engineer

  • Built web cache module for web proxy product (C++) Supported diploma thesis with research on web cache I/O design.• Integrated yum based system update• Load sharing solution for web proxy appliance based on Linux-HA and ipt_clusterip• Security support for operating system

• 

  McAfee

  Jan 2008 - Jan 2011

  Manager, Software Development

  • Integrated kernel driver for transparent proxy support, developed userland tools (C)• Porting web proxy appliance to HP blade• Integration with McAfee Email Gateway• Responsibility for hardware platforms and platform change to different manufacturer• Customized BIOS maintenance for multiple products• Security support for operating system components

• 

  Intel Corporation

  Jan 2011 - Mar 2017

  • Responsibility for small development team in two different locations (India, Germany)• Hardware platform change to Ivy-Bridge/Haswell systems

  • Technical Lead Cloud Infrastructure

    Jan 2016 - Mar 2017

  • Manager, Software Development

    Jan 2011 - Jan 2016
• 

  McAfee

  Apr 2017 - Mar 2022

  Technical Lead

  Introducing a new set of on-premise appliance models.Software-RAID and UEFI implementation for on-premise appliances. Including some SGPIO reverse engineering and finding a creative solution for displaying disk blink patterns in the right spot of the drive bay.Baseboard management controller kernel instrumentation for root cause analysis of a BMC sending malformed network packets in half-duplex mode.

• 

  Skyhigh Security

  Mar 2022 - now

  Technical Lead Systems and Network