Purdah

Wearing the niqaab even though one's family may disagree

Q: I just applied for a part-time job and they require that I remove my pardah (niqaab). I usually do not wear it in my home town due to my home situation as a revert and my family is against it and out of respect for them I do not wear it. However I made the intention to wear it full time even though my family would still disagree. 

My question is: What is the ruling on this and would it be advisable to wear it even though it may cause arguing and tension at home, and should I ever take off my niqaab (in future) for the sake of a job?

Breastfeeding one's baby in front of a toddler

Q: Is my 2.5 year old toddler allowed to see my breast? 

I have a 3 week old baby and my milk supply is low. I have been advised by lactation specialist to let baby suckle as much as possible to increase my supply, minimum is 30 min every 2 hrs. But my toddler only sleeps 1 hour some days. I am alone during the day and nowhere to put my toddler every 2 hrs. 

So my question is, am I allowed to breastfeed my baby in front of my toddler?