He will serve as deputy to Bob Kolasky, who was appointed director of the center in August.
Kneidinger joined the cybersecurity office five years ago and has been head of FNR since 2015.
Prior to DHS, he held senior leadership roles at Northrop Grumman, CACI International, Computer Sciences Corp. and Systems Automation.
Kneidinger previously served as a chief information officer at the U.S. Agency for International Development and New York State Education Department.
Matt Hartman, formerly deputy program manager of the continuous diagnostics and mitigation program at DHS, will serve as interim director of the CS&C office, according to an internal newsletter obtained by the station.
Mike Duffy, formerly branch chief of the FNR division, has been named acting deputy director for FNR.
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