When Maya Chen joined Harbr as VP of Engineering, the on-call rotation was quietly destroying the team. Two senior engineers had already left. More were close. Here’s how she fixed a problem that turned out to be much less about alerts, and much more about what an engineering culture actually values. Source: istockphotos The first thing Maya Chen did when she joined Harbr was ask to see the on-call logs. Not the incident reports, not the postmortems, the raw logs. Every page, every alert, every 3am notification that had fired in the previous six months. What she found was not a reliability problem. It was a tax, a slow, compounding levy being charged against the attention and sleep and goodwill of every engineer on the rotation. Harbr builds data infrastructure tooling for mid-market companies: the kind of product where uptime genuinely matters and where a real incident at the wrong moment can cause real downstream pain for customers. The on-call rotation existed for good reasons...