Management Team

Senior Executives

DR. HYO SANG LEE

President

Dr. Hyo Sang Lee received his Bachelor's degree in Physics from Seoul National University in 1970 and his Master's and Ph.D. degrees from Lehigh University in 1976 and 1980 respectively. He is an expert in the area of lasers and electro-optical system development, medical optics, and lidar remote sensing. He formed SESI in 1990 and since then has been involved in the strategy, development, and operation of a complex, multidisciplinary business.

SESI business involvement covers various activities for government customers including DOD, NIH, NASA, NSF, and various commercial activities. He has extensive experience working with Government customers and a number of major defense industries. He has implemented several Joint Venture businesses for large business opportunities. Besides execution and operation of the business, he provides R&D directions on various corporate R&D programs.

MR. RUSSELL CHUNN
Chief Financial Officer and Executive Vice President

Mr. Chunn graduated from the University of Alabama in Huntsville with a BS, Mathematics/Physics and obtained a BSE, (Mechanical Engineering Option) and a BBA, Accounting from the University of Alabama.  Since 1998 he has been responsible for overall planning, resource allocation, operational control, and prioritization of the various operational efforts, financial, accounting, purchasing, material control, and other areas of Corporate Management; designing and updating software accounting systems to comply with government standards; and preparing budgets, business plans and financial projections for the company. He is also actively involved in determining rate structures and negotiating contracts.

He is extensively involved in marketing and program development for all of SESI’s major programs and its joint ventures, and has successfully marketed for and managed the contractual and financial aspects of the Army Aviation and Missile Command’s Prototype Integration Facility’s $1.1 Billion, 10-year support contract, the C-17 Ground Support Equipment Contract with Wright Patterson and Warner Robins Air Force Bases, and many others.

MR. E.J. SINCLAIR
Chief Executive Officer

Mr. Sinclair holds a BS from the United States Military Academy and an MS from the National Defense University in National Security and Strategic Studies.

Prior to his appointment as CEO, Sinclair served as SESI's COO. He joined the company following a 31-year career as an Army Aviator, retiring at the rank of Brigadier General having been the Aviation Branch Chief and Commanding General of the U.S. Army Aviation War fighting Center at Fort Rucker, Alabama from 2003-2006.