John Ruffo

John Ruffo: Email & Phone Number

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Principal Information Security Engineer at The Hanover Insurance Group|United States

Position:

Principal Information Security Engineer at The Hanover Insurance Group

Location:

United States

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Last updated: 2026-04-24
Updated: 2026-04-24

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Work Experience 37 years

Principal Information Security Engineer at The Hanover Insurance Group

Mar 2021 - Current

Senior Systems Engineer at Optum

Mar 2020 - Mar 2021

Senior Systems Engineer at Equian

Nov 2018 - Mar 2020

Senior Systems Engineer (Senior Associate Level) at Cognizant

Apr 2017 - Oct 2018

Senior Systems Engineer at FinThrive

Aug 2013 - Apr 2017

Level II Network Engineer at IBC Bank

Mar 2011 - Aug 2013

Independent Contractor at Independent Web and Microsoft Exchange Contracts

Dec 2009 - Mar 2011

Director of Information Technology at Primary Business Systems

Aug 2004 - Dec 2009

Systems Deployment Engineer at Nortel Government Solutions

Aug 2003 - Aug 2004

LAN Engineer II at IBC Bank

Aug 2001 - Aug 2003

Systems Administrator / Competitive Intelligence Officer at Integrated Cargo Management Systems, Inc

Dec 1999 - Aug 2001

Database Administrator / Systems Deployment Engineer at Computerized Facility Integration

Feb 1999 - Dec 1999

Systems Engineer Contract at SAIC

Jul 1998 - Jan 1999

Administrator of Detect Program Networks Contract at SAIC

Jun 1998 - Jan 1999

DOD Firewall Operations Technical Guide Contract at SAIC

Jun 1998 - Jan 1999

Network Administrator at TMS Computer Service

Mar 1996 - Jul 1998

Purchasing & Service Consultant at MSS

Jun 1995 - Mar 1996

Network Administrator at Edward L Pina & Associates,PC

Jun 1989 - Jun 1995

John Ruffo started working in 1989, then the employee has changed 14 companies and 14 jobs. On average, John Ruffo works for one company for 2 years 1 month.

Their professional focus is Active Directory, Backup Exec, and Backup Solutions across 3 core areas.

Education

The University of Texas at San Antonio

San Antonio College

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