Certainly you are most likely to start a dev career at age 20-30. As the industry expands, the ratio of under and over 30 had stayed about the same but there ar

Certainly you are most likely to start a dev career at age 20-30. As the industry expands, the ratio of under and over 30 had stayed about the same but there are in absolute terms more developers over 30. I don't think there is any evidence dev careers die at 35.