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David B. Tuttle, Principal Engineer  
Company History, Business Genealogy, Colleagues


Crossbeam Logo Crossbeam Systems Inc.
80 Central Street, Boxborough MA

Crossbeam Systems was founded in 2000 by an assortment of networking people from the Wellfleet - Bay Networks - Nortel corporate descendancy.  The early products included both the modular X-Series switching and security platforms and the integrated C-Series appliances.  All of the products provide an optimized packet handling infrastructure surrounding an application environment based on Red Hat Linux.  Software partner companies, including Check Point, McAfee, Sourcefire, IBM Proventia, Imperva, Trend Micro, and Websense, provide a variety of networking applications packaged and tested for the Crossbeam platforms.

Crossbeam Systems in 2010 was an international company with more than half of its revenue from non-U.S. sales.  The following is a partial list of the executives and the technical people I worked with regularly.

  Peter George - former President & CEO
Throop Wilder - Founder, Network Security Evangelist
Mark Ruffalo - President & CEO
Chet Gapinsky - Vice President, Engineering
Mike Akerman - Director of Advanced Development
Peggy Goranson - Director of Software Engineering

Yevgeny (Eugene) Korsunsky - Director of Software Development, Platform Architect
Vladimir Senkov - Principal Software Engineer, NPM
Vitaly Dvorkin - Principal Software Engineer, NPM
Luc Pariseu - Software Engineer, NPM
Scott Wilde - Principal Software Engineer, NPM & microcode
Nagamalleswara (Naga) Appasani - Principal Software Engineer, NPM & microcode
Joe Kroll - Principal Software Engineer, Platform & BIOS
John Ritacco - Independent Contractor, NPM, IPv6
Peter Schulter - Project Lead, APM Virtualization

Tom Walsh - Software Department Manager, APM, CPM, Applications
Michael Sherman - Principal Software Engineer, APM
Dmitry Sherman - Principal Software Engineer, APM
E. J. Raymond - Principal Software Engineer, APM
Piotr Romanus - Principal Software Engineer, APM
Jie Yao - Principal Software Engineer, CPM
Hung Trinh - Principal Software Engineer, APM/CPM
Larry Trinh - Principal Software Engineer, CLI

Scott Steeves - Principal Applications Engineer
Kevin Frazier - Hardware Engineering Manager
Perry Wentzel - Hardware Sustaining/Design Engineer
Rich Collins - Principal Hardware Engineer
Tom Morgan - Quality Assurance & Performance Manager
Doug Theriault - Director of Engineering Operations
Rich Zeliff - Release Engineering
{ incomplete list }

In October 2012, Crossbeam Systems was acquired by Thoma Bravo, a private equity investment group.  In December 2012, Crossbeam Systems was merged into Blue Coat Systems Inc. of Sunnyvale CA, another of the Thoma Bravo portfolio companies.

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