- 1990-93: Dalhousie University Computing Services, Computer Lab
- 94-95: NSTN Inc., Technical Support Lead for Maritime dialup ISP.
- 95-97: ANS Inc., NSFNet Backbone Tier 0 (Until mid-95, we were the default route AS for Tier I NSPs) Network Operations Center Supervisor
- 97-01: Excite@Home, Manager, Network Operations Engineering
- 01-04: Network Architect and Engineer for the City of San Bruno's municipal cable system.
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