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Our Team

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Our team consists of highly-trained individuals with years of experience in the transit and railroad industries. These individuals retain a hands-on approach and are involved in every aspect of a project from start to finish.

James Qin, Ph.D., P.E.


Dr. Qin has over 30 years of professional, technical & managerial experience in engineering, public transit, large-scale infrastructure projects, high-speed rail, civil & infrastructure, energy conservation, and environmental protection.  

Richard Garrabrant, P.E.

Chief Operating Officer

Mr. Garrabrant has over 30 years of domestic and international executive-level experience as a consultant, agency manager, college professor, and author.

Brad Black

Senior Vice President

Mr. Black has over 30 years of working in the public transportation and railroad industries specializing in procurement support, project management and vehicle equipment maintenance, supervision of manufacturing, and budgets & estimates for overhaul programs.

Patrick Tully

vice president

Mr. Tully has over 30 years of rail experience in the transportation industry with an emphasis on vehicle systems, vehicle engineering, program management, manufacturing, and business development.

Nelson Lee, Ph.D

Vice President, founder and president of eiger

Dr. Nelson Lee has over 40 years of professional and technical experience in electrical engineering in the field of intelligent transportation systems (ITS), communication networks, CAD/AVL and bus signal priority (BSP).

Ajay Nayyar

Senior Program manager

Mr. Nayyar specializes in designing, deploying and integration of systems like CBTC, AFTC, PTC, train control (ATC/ATO/ATP) and CAD/AVL/AVA ITS systems. He has over 30 years of experience working with CENELEC, IEEE, EN and AREMA standards in transportation industry.

R. Scott Rodda, P.E.

Senior Program Manager

Mr. Rodda specializes in rolling stock, systems and fare collection, procurement, and technology with over 30 years of experience focusing on program management and rail systems development & integration.

Arun Virginkar

Founder and Senior Consultant

Mr. Virginkar has over 40 years of professional and technical experience in the transit industry. His expertise includes project management oversight, procurement management, rolling stock (bus & rail) and operation & maintenance planning.

© Virginkar & Associates, Inc.