die Arbeitsstelle
job
A position or job with an employer; an employment relationship.
Nach langer Suche hat sie endlich eine neue Arbeitsstelle gefunden.
After a long search, she finally found a new job.

job / workplace
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job
A position or job with an employer; an employment relationship.
Nach langer Suche hat sie endlich eine neue Arbeitsstelle gefunden.
After a long search, she finally found a new job.

The word is composed of 'die Arbeit' (work) and 'die Stelle' (position/place). Depending on the context, 'Stelle' here can mean a position (job) or a location (place).
Er ist mit seiner neuen Arbeitsstelle sehr zufrieden.
He is very satisfied with his new job.
You can recognize the meaning from the verb: verbs like 'suchen' (to look for), 'finden' (to find), or 'annehmen' (to accept) refer to the job. Verbs of movement like 'fahren' (to drive/go) or 'gehen' (to go) refer to the physical place.
Sie hat eine neue Arbeitsstelle in einer anderen Stadt angenommen.
She accepted a new job in another city.
When 'Arbeitsstelle' means a job, typical verbs are 'eine Arbeitsstelle suchen' (to look for a job), 'sich um eine Arbeitsstelle bewerben' (to apply for a job), 'eine Arbeitsstelle antreten' (to start a job), or 'eine Arbeitsstelle kündigen' (to quit a job).
Er hat sich erfolgreich um die ausgeschriebene Arbeitsstelle beworben.
He successfully applied for the advertised job.
When the physical place is meant, prepositions of location are used. You drive 'zur Arbeitsstelle' (to the workplace; direction) and are 'an der Arbeitsstelle' (at the workplace; location).
Die Bauarbeiten auf dem Weg zur Arbeitsstelle verursachen Stau.
The roadworks on the way to the workplace are causing traffic jams.
work
'die Arbeit' and 'die Arbeitsstelle' can both have to do with a job. 'die Arbeit' means professional work in general or a job in everyday language. 'die Arbeitsstelle' refers more specifically to a concrete position with an employer or the place where you work. The words can be confused because 'Arbeit' is often also used to mean the workplace or the job. If you are saying in general what someone does for work or that someone is going to work, 'Arbeit' is more natural. If you are talking about a specific position, an employer, or the workplace, 'Arbeitsstelle' fits better.

Nach der Ausbildung hat Sofia schnell eine feste Arbeitsstelle gefunden.
After her training, Sofia quickly found a permanent job.
Heute bleibt Mehmet länger im Büro, weil er viel Arbeit hat.
Mehmet is staying at the office longer today because he has a lot of work.