Prometheus Isn't Monitoring. It's Interrogation. Senior Asked at: FAANG, Startups, Cloud Native companies Q: "We're designing the monitoring strategy for our new microservices platform. A junior engineer suggests using a traditional, push-based tool like Nagios because it's 'simple.' You're advocati...
Design a Monitoring System That Thinks, Not Just Blinks Senior Engineer Asked at: Google, Netflix, Uber, Startups Q: "Design a robust monitoring and alerting system for a rapidly growing microservices architecture." Why this matters: This is not a pop quiz on open-source tools. It's a test of your s...
The Smartest Engineers Don't Build—They Find Leverage Mid/Senior/Staff Engineer Asked at: FAANG, Stripe, Shopify, high-growth startups Q: "You're launching a critical new service. You need visibility into its performance by the end of the week. How do you approach this?" Why this matters: This is a ...
Don't Just Monitor Your System—Make It Tell You a Story Mid/Senior Engineer Asked at: Google, Netflix, Amazon, Stripe, Startups Q: "Tell me about a time you built a monitoring dashboard or used observability to solve a critical problem." Why this matters: This isn't a tooling quiz about Grafana or D...
Grafana: From Flying Blind to All-Seeing God You've heard of Grafana, but you think it's just for making pretty charts. That's like saying a lever is just a stick. Let's reason from first principles to understand the profound problem Grafana actually solves. The 3 AM Outage: A Parable of Modern Engi...