The PowerTech management team consists of internationally recognized security experts with firsthand experience in the iSeries world.

John Earl
Director of Security Technology
John Earl is Director of Security Technology of The PowerTech Group, a Seattle area software company that specializes in
System i security. He has over 25 years experience with IBM midrange systems and security, has published numerous articles and columns for industry magazines, and served as a Subject Matter Expert (SME) for Security for COMMON. A highly regarded speaker on OS/400 security, Mr. Earl has presented several hundred of iSeries security sessions at industry conferences and user groups all over the world. He is a three time winner of COMMON's Speaker Excellence award, and has also served on the board of directors of COMMON U.S.

Brendan Patterson
Product Manager
Brendan Patterson is responsible for all product management activities at The PowerTech Group. Brendan has more than 17 years of experience in the high-tech industry. In his four years at PowerTech, Brendan has directed product management and marketing for the Company’s complete suite of security and compliance software products. He was instrumental in expanding the product line and the successful launch of the new Authority Broker and Compliance Monitor products. Brendan has spoken at industry events and been published in the System i press. Previously he held product management positions at GoAhead Software, a leading provider of High Availability and Management middleware, and Webforia, an Internet portal company.

He has also has technical and management experience at Parametric Technology Corporation, a computer aided design software company, and Boeing Commercial Aircraft.

Brendan has a master's degree in the Management of Technology from the Massachusetts Institute of Technology, Cambridge, Mass., and a bachelor's degree in mechanical engineering from the National University of Ireland.

Dan Riehl
Founder, Audit and Security Specialist
Dan Riehl is the founder of Powertech and currently serves as an Audit and Security Specialist. In this capacity, he has consulted with some of the largest corporations in the world in performing System i security assessments and implementing enhanced security designs.

Dan’s column, "Security Central," appears regularly in System iNEWS Magazine, where he has been a Technical Editor and author for over 20 years. He is the writer and editor for the System iNetwork Systems Management Newsletter and regularly teaches classes and seminars on System i security and other technical topics. Included among the award winning books that Dan has authored and co-authored are:

PowerTips for OS/400 Security
AS/400 PowerTools (Volume I & II)
Control Language Programming for the AS/400
Control Language Programming for IBM i
The Desktop Guide to AS/400 Programmers' Tools
CL By Example