Pretty much most big tech companies have levels Junior, Mid and Senior (and above). It gets confusing because many companies skip the mid level and call anyone

Pretty much most big tech companies have levels Junior, Mid and Senior (and above). It gets confusing because many companies skip the mid level and call anyone with 1-2+ YoE Senior. However most often Senior eng at Big Tech is a bigger deal (think coordinating the delivery of complex systems involving more than 1 team). You could easily spend the rest of your career cranking up solid code as a mid level dev if you wished.