job ... or work???
JOB is countable and it means- a paid occupation >> He's got a new job as a teacher.
- a task >> We've got lots of jobs to do today!
- a duty or responsibility >> Painting the house is a big job.
WORK is usually uncountable (we cannot say: I have a new work) and it means
- one's place of occupation >> Things aren't going to well at work at the moment.
- undefined tasks >> I've got a lot of work on right now.
They can be used with little or no change in meaning:
- Is your job/work interesting?
- What kind of job/work do you do?