Al-jawab billahi at-taufeeq (the answer with Allah’s guidance)
It is not permissible to make Masah on the head scarf. Similarly, masah on the turban, hat, Burqa and gloves are also not permissible (Nurul Idhah).
Washing the face, hands (forearms) up to the elbows and feet up to ankles, and Masah quarter of the head is a compulsory act of Wudhu.
“O you who believe! When you intend to offer As-Salât (the prayer), wash your faces and your hands (forearms) up to the elbows, rub (by passing wet hands over) your heads, and (wash) your feet up to ankles.” (Surah Number: 5, Ayah Number: 6)
However, the Masah of the nape is Mustahab (peferable). (Nurul Idhah Pg. 33)
If you are working in a mixed environment it should be avoided as working in such a place where free mixing and intermingling of sexes takes place is forbidden in Islam.
And Only Allah Ta’ala Knows Best.
Moulana Qamruz Zaman