John Callahan's Location
Reston, Virginia, United States
John Callahan's Work
John Callahan's Education
John Callahan's Skills
- Engineering
- Security Clearance
John Callahan's Summary
John Callahan, based in Reston, Virginia, United States, is currently a Senior Systems Engineer at Saic, bringing experience from previous roles at Honeywell Minneapolis, Orbital Atk and Saic. John Callahan holds a South Dakota School of Mines and Technology. With a robust skill set that includes Engineering, Security Clearance and more, John Callahan contributes valuable insights to the industry. John Callahan has 2 emails on RocketReach.