You have a map of the frozen lake. Every crack in the ice, every slippery patch, every hole is marked. You can sit at your desk and plan the perfect route before stepping foot on the ice. That is value iteration. Now imagine you have no map. You lace up your boots and start walking. You slip, you fall into holes, you backtrack. But each time you learn a little more about which moves pay off and wh
It was 2:47 AM when the alerts started. A seemingly straightforward database migration had triggered a cascading failure across three downstream services, and our payment processing pipeline was dropping roughly 12% of transactions. The on-call engineer didn't need to wake anyone, locate a rollback script, or wait for a CI pipeline to churn through another deploy. She opened the LaunchDarkly dashb
Some time ago, I was building a chat application using AWS Websocket API gateway. Things were going smoothly. I created a WebSocket API Gateway, added $connect, $disconnect, and sendMessage/addGroup routes. From the frontend (React) side, everything was fire-and-forget. You send a message, and the onMessageHandler takes care of it 💪🏼 But then a new requirement of uploading files using S3 signed