"But and that a honest question: What would you do when you see that thing X will break in maybe a year and there is no way to scale it and the manager is ignor

"But and that a honest question: What would you do when you see that thing X will break in maybe a year and there is no way to scale it and the manager is ignore that it will break in the near future?" In my opinion the best option is to ensure that your manager understands the forthcoming problem, and even if they choose to ignore it, have a plan for what you'll do when that happens. Sometimes what seems to you like them ignoring the problem is actually acceptance of the risk; a choice to defer action. If you can be anticipating the problem and be the person ready to get working on a solution when it's finally required you'll usually win heartily. If you fall to an I-told-you-so attitude it won't be very helpful for anyone. Of course, depending on how management handles it when things do finally fall over you may want to consider looking elsewhere. After all, there's good and bad leaders everywhere...