THE 3 BIG MISTAKES THAT ALMOST COST ME MY PROMOTION (AND HOW YOU CAN AVOID THEM)

Summary from the TLDR Web Dev newsletter

Software engineers make some common mistakes when trying to get promoted. They sometimes fall for the “Promotion Donut” trap, where focusing solely on next-level responsibilities leads to neglecting current duties. While it's true “what got you here won't get you there,” you still have to do “what got you here” while also performing at the next level. Additionally, engineers need to make sure they have a supportive manager and fully understand their company's leveling system.