In "The Stranger," what do we learn of Meursault's work, his attitude towards it and towards promotion?

Meursault is a
man of great indifference. When his mother passes away, he is neither disturbed nor particularly
grieved. He tends to hold this apathetic attitude throughout most of the novel, and while he
continues to live his life, he continues to lack any strong feeling about it as a
whole.

This apathy is carried over to his work, which he feels obligated to
do, but which he avoids particularly caring about. He tends to remain objective about things;
for example, when he describes taking time off in order to attend his mother's funeral, he
says,

"I have fixed up with my employer for two days'
leave; obviously, under the circumstances, he couldn't refuse. Still, I had an idea he looked
annoyed, and I said, without thinking: 'Sorry, sir, but it's not my fault, you
know....'

Upon waking I understood why my employer had looked rather cross
when I asked for my two days off; it's a Saturday today...."

His work isn't something he enjoys or dislikes. It is what he feels naturally obligated
to do. The same can be said about his potential promotion; Meursault's boss speaks to him one
day, offering him an opportunity to move up in the company by moving to Paris. Meursault
muses,

"I told him I was quite prepared to go; but
really I didn't care much one way or the other.... I answered that one never changed his way of
life; one life was as good as another, and my present one suited me quite well."

His boss, naturally, is quite offended at Meursault's lack of
excitement. Meursault isn't against the idea of being promoted; he simply isn't any more
for it than he is opposed to it. To him, promotion or
not, his life will generally remain the same because he will generally
remain the same. His absurdist point of view suggests that life is generally meaningless and
that he might as well just be; a promotion, a marriage, and the death of
his mother are surely not able to influence him too significantly in any
way.