就職 and 就業: getting a job and work activity
Compare plans and preparation for getting a job with employment support and a factory's working hours. Keep the transition and the activity distinct without imposing a fixed sequence.
Getting a job and preparing for it
就職 (しゅうしょく) concerns getting a job. 「卒業後は地元にある会社へ就職する予定だ。」 expresses a plan to obtain employment at a local company after graduation. 予定 keeps the transition in the planned state.
「就職に備えて、履歴書の書き方を学んだ。」 reports learning how to write a resume in preparation for employment. The learning is completed; obtaining the job is not additionally stated.
Employment support and working hours
就業 (しゅうぎょう) concerns employment or work activity. 「相談会では若者の就業を支援する制度が紹介された。」 reports the introduction of an employment-support program at an information session, rather than an individual's completed employment.
「工場の就業時間は入口の掲示板で確認できる。」 says the factory's working hours can be checked on the entrance notice board. 就業時間 concerns time spent working, not the journey from home to the factory.
Transition, activity, and time
These 就職 examples focus on the transition to a job and preparation for it. The 就業 examples concern supporting employment and the hours of work. Do not define 就業 as a stage that can only follow 就職.
Learning resume writing, introducing a program, and displaying working hours supply different information. Read the completed action and the type of time rather than merging preparation with work activity.
Does 工場の就業時間 mean the period spent preparing a resume or commuting to the factory?
Show the answer and why
No. It identifies the factory's working hours. Resume learning in preparation for 就職 is a different activity and does not define the time covered by 就業時間.