Profile
John R.
Callahan is Chief Strategy Officer of Quantum Solutions LLC.
Previously, he was Director of the NASA-WVU Software Research Laboratory.
Dr. Callahan was a Civilian Programmer and Analyst for the US Department of the Air Force in 1982, and a Computer Operator for International Business Machines Corp.
in 1981.
Prior to joining NASA-WVU, he was a Director of GlobalCast Communications from 1995 to 1998 and a Consultant and Programmer of Xerox Corp.
from 1985 to 1988.
Dr. Callahan was a Programmer and Analyst of the NASA Goddard Space Flight Center from 1983 to 1985.
Former positions of John R. Callahan
| Companies | Position | End |
|---|---|---|
| Globalcast Communications, Inc. | Director/Board Member | 31/12/1997 |
Xerox Corp.
 Xerox Corp. Computer PeripheralsElectronic Technology Xerox Corp. engages in the integration of paper and digital products. The firm offers home, office, office laser, multifunction and all in one printer, digital sheet-fed printing presses and scanner. The company was founded in 1906 and is headquartered in Norwalk, CT. | Corporate Officer/Principal | 31/12/1987 |
| IBM | Corporate Officer/Principal | - |
| US Air Force | Corporate Officer/Principal | - |
Quantum Solutions LLC
 Quantum Solutions LLC Information Technology ServicesTechnology Services Quantum Solutions LLC provides network design and information technology consulting services. The firm provides both consulting and technical support to individual and business clients. The company was founded in 1985 and is headquartered in Owings Mills, MD. | Corporate Officer/Principal | - |
Experiences
Positions held
Connections
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Listed companies | 1 |
|---|---|
| IBM | Technology Services |
| Private companies | 4 |
|---|---|
Quantum Solutions LLC
Quantum Solutions LLC Information Technology ServicesTechnology Services Quantum Solutions LLC provides network design and information technology consulting services. The firm provides both consulting and technical support to individual and business clients. The company was founded in 1985 and is headquartered in Owings Mills, MD. | Technology Services |
Xerox Corp.
Xerox Corp. Computer PeripheralsElectronic Technology Xerox Corp. engages in the integration of paper and digital products. The firm offers home, office, office laser, multifunction and all in one printer, digital sheet-fed printing presses and scanner. The company was founded in 1906 and is headquartered in Norwalk, CT. | Electronic Technology |
| Globalcast Communications, Inc. | Technology Services |
| US Air Force | Government |
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