Our Team

Since its inception, AVT’s highly specialized staff of engineers has included some of the top leaders in the simulation industry. With an average of over 20 years of simulation experience, our dedicated staff provides specialized solutions for customers requiring agile actions to combat complex problems.

About AVT

MEET OUR LEADERSHIP

People First is our first and most important core value because we firmly believe the success of

AVT is directly related to supporting our employees

“Your Project, Our Priority.”

Robert Abascal

Founder & CEO

Robert Abascal has over 30 years' experience in all aspects of development and life cycle supportability of simulator systems. He began his career performing visual systems engineering and computer programming with high-profile aerospace clients such as General Dynamics, Bell Helicopter, Lockheed Martin, and Evans & Sutherland, before founding AVT Simulation in 1998.

He has written several papers on CIG and published the Image Society Annual Image Generation (IG) Survey document. Most recently, Mr. Abascal has concentrated on the advancements in commercial off-the-shelf (COTS) technology to develop cost-effective, high-fidelity training simulators and software technology in order to rapidly integrate or upgrade existing trainers with little downtime. His leadership role as Founder and Chief Executive Officer of AVT Simulation facilitates constant contact with the user community to understand the demands in satisfying their training requirements.

He holds a Bachelor of Science in Electrical Engineering from Purdue University and completed advanced coursework at the University of Texas at Arlington.

William Glaser

President

Brigadier General William Glaser served 31 years in the Army before he retired where he held numerous leadership positions in operational, training, and simulation organizations. He is the first Simulations Officer to be promoted to General, and he last served as Director of the Synthetic Training Environment Cross-Functional Team. He has extensive customer-side experience, having previously served as the Director of multiple Simulation Centers in the US and Europe.

Mr. Glaser joined AVT in 2025 to lead as President.

Mr. Glaser is a West Point graduate and holds a Master in Science from the Naval Post Graduate school.

Kimberly Sheldon

CFO

Kimberly Sheldon joined AVT Simulation in March 2016. Her addition brought more than 20 years of financial management experience in the technology and government contracting industries to AVT’s executive management team. She is responsible for providing guidance and direction concerning AVT’s strategic growth plans and overseeing financial functions, including financial reporting, budgeting, operational analysis, treasury, and capital structuring.

Previously, she has held several key accounting, management, and human resource positions, including CFO and Controller, for other DOD/DOS contractors on Patrick Air Force Base and the US Army’s Fort Huachuca. Kim provides sound leadership for all our financial functions during a critical period of growth for the company. Her depth of knowledge, strong accounting, compliance experience in the government services and technology industries, and overall expertise in financial management are helping to ensure the successful future of the company.

Aileen Amirault

COO

Aileen Amirualt joined AVT in June 2026. Aileen brings over 20 years of progressive operations leadership in defense, training systems, and complex engineered solutions. Most recently, she served as Vice President & General Manager – Global Training Solutions at V2X Inc., where she owned end-to-end operations for training systems, devices, modernization, maintenance, and sustainment solutions supporting military and commercial customers worldwide.

She will lead our engineering, manufacturing, program management, and service delivery functions, establishing the operational cadence, accountability frameworks, and scalable processes that will carry AVT forward as we continue to grow and serve our customers with excellence.

Aileen holds a Bachelor of Chemical Engineering from Cornell University. Her technical foundation, combined with decades of operational excellence, positions her uniquely to build the scalable processes, systems, and leadership infrastructure AVT needs to thrive.

Kevin Vizzarri

Senior VP of Business Development

Colonel Kevin Vizzarri retired after over 25 years of active duty assignments where he served as an Army Aviation Officer (AH-64D Apache Longbow) and a European Foreign Area Officer. He commanded Soldiers from Platoon to Brigade level in different Army Aviation assignments at Ft. Hood, Texas; Illesheim, Germany and in deployed operations in Iraq and Afghanistan. He attended the resident Command and General Staff College at Ft. Leavenworth, KS, and served as the Professor of Military Science at the University of Texas at Austin.

Mr. Vizzarri joined AVT Simulation in 2014 to lead the strategic business development and marketing initiatives, both domestically and internationally.

Mr. Vizzarri has a master’s degree in Public Policy and Management from the University of Pittsburgh, a master’s degree in Global Security Studies from the University of Roma “La Sapienza” and a Bachelor’s of Arts degree from Duquesne University. He was also a US Army War College Fellow at the Italian version of their National War College (Istituto Alti Studi per La Defesa, Rome, Italy.)

Roger Torres

Roger Toress started at AVT as Program Manager for the AVCATT program in 2017. With over two decades in the DoD sector, he specializes in Modeling, Simulation, and Training (MS&T) programs. A Project Management Professional (PMP), Roger is adept in training, systems analysis, and courseware development. He's also a multi-rated FAA licensed commercial pilot and an A&P technician, holding a B.S. in Vocational Education and an M.S. in Aeronautical Science.

General Manager of Products Division

General Manager of Services Division

Marcus Varnadore

Marcus Varnadore brings over 34 years of leadership experience comprising military service as well as acquisition planning and execution of Department of Defense Programs. A retired US Army Colonel with 30 years of active service, he directed the planning, management, and execution of over $1 billion in resources, delivering advanced solutions in modeling and simulation, Army Aviation, Special Operations Rotary Wing, and Army Air and Missile Defense.

Currently, Mr. Varnadore serves AVT Simulation as General Manager of the Services Division where his focus is on the execution of current programs and expanding AVT’s Services portfolio through successful competition and strategic partnering.

A graduate of Southeastern Louisiana University, he has also received master’s degrees in Modeling and Simulation from the University of Central Florida and in National Resource Strategy from the Eisenhower School for National Security and Resource Strategy.

Mike Callis

Mike Callis is the Senior VP of Operations and Services Business Development at AVT Simulation. Following his retirement as a Colonel from a 28-year career in the US Air Force, where he held numerous leadership roles, he transitioned to the civilian sector. He brings over twelve years of experience in modeling, simulation, and training system support for military simulators. Mike holds a bachelor's in Mechanical Engineering from Auburn University and masters' degrees in Aviation Sciences and Strategic Studies from Embry-Riddle Aeronautical University and the Air War College, respectively.

Sr. VP of Operations and Services Business Development

Doshie Walker

Human Resources Director

Dr. Doshie Walker works as the Human Resources Director at AVT Simulation. Doshie served in the United States Army in Human Resources for over 22 years and retired with an honorable discharge in 2004. Dr. Walker brings more than 30 years of experience in Human Resources and Learning and Development, with extensive expertise in organizational development, leadership development, workforce planning, and employee engagement.

Doshie has a PhD and Master’s in Industrial and Organizational Psychology from University of Phoenix. Dr. Walker’s doctoral research examined workplace behavior and engagement. She has her certification in Society Human Resource Management-Certified Professional (SHRM-CP).