Hi Sindhu! 
I’m sorry no one’s replied sooner to this. I also responded to that post on OSD a few weeks ago, along with @cristianson. I don’t know if @keunes has contacted you directly but I’m sure he will be happy for you to get involved - the more the merrier!
I remember the job posting was more aimed at user research, however currently we’re more focused on small changes to begin with. Check out this thread for an indication we’re currently up to -
If you’re interested in doing something else, I would contact @keunes. As far as research, so far I’ve started a Completive Analysis - which you’re welcome to add to 
Regards,
George