In Big5: Microsoft, Apple, Google, Amazon and Facebook, the software engineers are assigned a level so that they can work hard, and be promoted into next levels in the career ladder.

See this from levels.fyi

The Terminal Level means that you can stay in that level comfortably if you enjoy doing so. You don’t get fired if you can’t achieve to next levels.

However, some entry levels such as E3 in Facebook and L4 (SDE I) in Amazon, if you can’t progress to next levels within 2 years (or 18 months), it means you are not good enough and you will likely be dismissed for low performance. In Amazon, they will PIP you out (Performance Improvement Plan).

The SDE II (Level 5) in Amazon, or E5 in Facebook are good (terminal level) for engineers who do their job but don’t like being a team lead – or mentoring other junior SDEs. It really depends, some people enjoy but others don’t.

Your line-managers will usually talk about the Personal Career Development (or Your Ambitions to Career Development) in your weekly 1-to-1 meetings or the annual performance review meeting. In Big IT/internet companies it usually requires filling quite many big forms in order to get promoted to next levels.

What is your career level?

–EOF (The Ultimate Computing & Technology Blog) —

推荐阅读：
由误解所想到的作文450字　 我的家乡周口作文　 三下乡中的失误和反省　 六年级感恩父亲节作文1000字　 手工纸剪小树数学题：用一张长45cm、宽21cm的手工纸，能剪几棵这样的小树？　 数学题:两人轮流报数，每次只能报1或2，把两人报的所有数加起来　 数学题:下面三位同学要去量身高、验视力，每项检查都要3分钟　 沏茶问题练习题　 数学题:爸爸开车和妈妈一起从家外出办事　 怎样安排最节省时间的问题