就职
jiù zhí · HSK 7
to assume a post
💼 就职 = 就 take up + 职 post/duty — take up your duty, assume office
职 is the same post/duty character in 职业 (occupation) and 职位 (position); 就 carries the sense of going to or taking on. Together: take on the post.
就 — 京 (capital) + 尤 (especially)
Originally a compound suggesting going to a high place (京 depicts a tall building) to settle or accomplish something. Over time the meaning shifted from 'approach a high place' to 'go to,' then broadened to 'accomplish,' and finally to the modern grammatical senses 'then,' 'just,' or 'precisely.'