As a result, AWS engineers are very much promotion oriented. This leads to two results: title inflation and disgruntled employees. L6 used to be a big deal but not any more. L7 is now the new L6. The challenge with this arrangement is that whoever got promoted early on but stayed in the same level get less in return. And apparently it's human's nature to compare. When engineers see that their peers get promoted to L7 (a role used to be considered almost impossible to reach) in three years for no particularly obvious reasons, they can barely hide their cold anger.