When the system is live and has to stay working.
A fielded system is not a finished object. It is a set of assumptions about its environment, held in place while the environment moves. The fleet grows, inputs shift, a vendor pushes firmware, a sensor is swapped and the replacement is subtly different. None of those are failures when they happen. They are the conditions under which failure becomes possible.
We stay on as a standing engagement: watching the system and the seams it lives across, monitoring for drift before it becomes failure, and maintaining, tuning, and extending it as conditions change. Close enough to the system that a problem is caught by us rather than reported by your customer.
Watch the system
Stay close to the live system and the boundary it lives across, continuously, not on a quarterly cadence.
Monitor for drift
Track the system for drift before it crosses into failure.
Track fleet and inputs
Follow the fleet as it grows and the inputs as they shift under the system.
Tune and extend
Maintain, tune, and extend the system as the conditions around it change.
Catch it first
Stay close enough that a problem is caught by us, not reported by your customer.
Anonymized, all real delivered work. Described by domain, architecture, and outcome, never by client.