Meet Our Instructors
Accredited experts with decades of real-world experience - the people behind our pass rates.
Chris Ward
Lead Instructor
Chris Ward has been a trainer and instructor for over 25 years, with expertise in IT service management, project management, governance, and risk. He holds the ITIL 4 Master, ITILv3 Expert, PMP, PMI-ACP, Professional Scrum Master, CRISC, and CISA certifications, along with credentials from Microsoft, Cisco, and CompTIA. Chris delivers engaging, real-world training across the full ITIL 4 certification path and PMP exam prep, drawing on decades of hands-on industry experience.
Denis Esslinger
Senior ITIL Instructor
Denis Esslinger brings over 25 years of IT experience with proven success in both corporate and non-profit organizations. He is a certified ITIL Expert and Service Manager who excels at developing sound strategies and implementing people-focused processes to improve the quality and reduce the cost of IT services. Denis is a highly accomplished, results-oriented team builder recognized as the 2005 itSMF Member of the Year, and he chaired their 2005, 2007, and 2011 conferences. He has been delivering ITIL classes for over seven years.
Rich Petti
ITIL Instructor
Rich Petti is an ITIL Master, ITIL Ambassador, and ITIL Assessor with deep, hands-on experience in IT service management. He teaches across the ITIL certification path at PassionIT Group, bringing practical, real-world insight to every cohort.
Bill Muskopf
Senior ITIL Instructor
Bill Muskopf has over 30 years of IT experience and is a certified ITIL Expert and ITIL 4 Managing Professional. He is accomplished in information gathering, data analysis, and information systems support. Bill has captured business processes and translated them into requirements for simulation-based test environments, reducing software development life cycles in large healthcare organizations. He has overseen training plan creation for service management software implementations and managed matrixed teams for ITIL Problem Management Process design and delivery.
Bill Lipiczky
Security & ITSM Instructor
Bill Lipiczky is an information security and ITIL professional with extensive experience as an IT consultant, author, and technical trainer. He specializes in helping organizations improve their IT service delivery and strengthen their security posture. Bill holds the CISSP and ITIL 4 Managing Professional certifications and has been involved in IT consulting, training, and course development for over two decades. His deep understanding of both security and service management makes him uniquely qualified to deliver training that bridges these critical disciplines.
Leslie Landry
ITIL Expert Instructor
Leslie Landry brings over 16 years of experience in IT Service Management, specializing in aligning people, processes, and technology to drive organizational success. She is an accredited ITIL Expert instructor and PRINCE2 Practitioner instructor who delivers engaging training programs that consistently receive excellent feedback. Leslie's work emphasizes strategic planning, process development, and fostering impactful change within organizations through dynamic business simulations and experiential learning.
Hillary Rosenfeld
ITIL 4 Instructor
Hillary Rosenfeld is an ITIL 4 Trainer at PassionIT Group specializing in IT service management and training across diverse industries. Her expertise encompasses IT processes, ServiceNow platform management, and ITIL 4 framework implementation. Hillary empowers IT professionals with a service mindset, bridging best practices and technology to enhance organizational IT capabilities. She previously served as IT Service Management Advisor, Trainer, and Service Management Office Associate Director at Boston University. Hillary holds the ITIL 4 Master certification.
Daniel Lowrie
Cybersecurity Instructor
Daniel Lowrie is a cybersecurity subject matter expert with over a decade of experience spanning instructor roles, help-desk support, systems and network administration, and offensive security. His IT career began with workstation support before transitioning through in-classroom training, network administration, and cybersecurity specialization. Daniel is known for making complex security topics approachable through hands-on, practical teaching methods. He holds CompTIA A+, Network+, Linux+, CySA+, PenTest+, CEH, MCSA, CFR, and eJPT certifications.
David Flemming
ITIL Instructor
David Flemming brings expertise in corporate communications and organizational change management to his role as an ITIL instructor at PassionIT Group. He has a proven record of delivering business results for diverse, global organizations by motivating audiences to support organizational goals. With 20 years of experience working across a variety of industries on strategic messaging and implementing organizational change, David brings a unique business perspective to IT service management training.
Edward Gray
ITIL Instructor
Edward Gray is an accredited ITIL instructor at PassionIT Group with extensive experience in IT service management training and consulting. He delivers engaging, practical ITIL certification courses that prepare students for exam success while equipping them with real-world service management skills they can apply immediately in their organizations.
Michelle Alex
ITIL Instructor
Michelle Alex is an accredited ITIL instructor at PassionIT Group, delivering certification training that combines theoretical knowledge with practical application. She brings a learner-centered approach to the classroom, helping IT professionals at all levels build the service management competencies they need to drive organizational improvement and advance their careers.
Ryan Barras
PMP Instructor
Ryan Barras is a project management instructor at PassionIT Group specializing in PMP exam preparation and project management methodologies. He brings real-world project management experience to the classroom, helping professionals navigate the PMI exam content across predictive, agile, and hybrid approaches while building practical skills they can apply to their projects immediately.
William Cook
ITIL Instructor
William Cook is an accredited ITIL instructor at PassionIT Group with deep experience in IT service management training and implementation. He delivers comprehensive ITIL certification courses that emphasize practical application, helping organizations improve their IT service delivery through best practices and proven frameworks.