Angular.js Developer

The client is looking for a JS developer experienced with Angular.js to join an existing team of 8 people (incl. Scrum master). The team - which works inhouse at the client's office - has developed a system for a customer that lets them manage artists/actors and their participation in TV shows.
Currently there are more frontend tasks than the team can work on, which is why they are looking for 1-2 freelancers to support them. The freelancer should be able to contribute 25-30 hours per week until the end of the year and possibly even longer.
All "time & material" (meetings/calls with the client and the client's customer) is being paid for.