To grab a responsible and challenging position in social or education services offering hands-on experience with youngsters.
The collocation is 'experience with youngsters'.
The sentence probably means that the position/job offers/provides the opportunity to work with youngsters.
What I find strange is the use of the word 'grab'. Of course it depends on who the sentence is addressed to. You say that a job is 'up for grabs' but telling potential job seekers to grab a position does sound odd.
not a teacher
- For Teachers