Thomas L Chen, CISSP, ISSAP, ISSEP, CCNA, is an infrastructure and information protection professional.
His first significant assignment was compiling a digital fault dictionary using tools running on UNIVAC III Prototype 0 in 1969 at UNIVAC in the US.
He then worked as principle programmer on the Communication Management System and Transaction Management System for the UNIVAC 1100 series mainframes.
In 1985, he joined E-Systems, which was later acquired by Raytheon, as senior principle software engineer, where he worked on the Survivable Communications Integration System (network of the doomsday machine), Cooperate Engagement Capability (Fleet anti-cruise-missile defence), and USS Zumwalt (DDG-1000) destroyer.
In 2008 he returned to the information technology field to work on the eBorder (datacentre) project in London, UK, and earned a series of infosecurity certifications.
Subsequently, he worked on several infrastructure protections and IT projects in the US.