Influenced by old ideas, some units assign posts according to seniority.

由于受旧观念的影响，有些单位分配工作按资排辈。

《新英汉大辞典》

Varies according to seniority and position.

根据级别和职位时间长短有所不同。

youdao

They tended to be paid according to seniority, rather than productivity, and were costlier to sack.

因为他们是根据资历而非效率来决定收入，而解雇他们往往代价更高。

youdao

As well as seeking job-security, sararimen have traditionally looked to the workplace to give them status, a social life and pay set according to seniority.

ECONOMIST: The amazing portable sarariman